Dr Karl was first heard on the wireless in 1981 when he convinced Triple J that a talk about the space shuttle would be good listening because he had applied to be a NASA astronaut. The shuttle did (eventually) launch ... and along with it, the all-science-media career of one Dr Karl Kruszelnicki. This is Dr Karl's last Great Moment in Science, as we know it—but don't worry, he'll still be around and firing on all cylinders—including on the Science with Dr Karl podcast (from Triple J).

Dr Karl was first heard on the wireless in 1981 when he convinced Triple J that a talk about the space shuttle would be good listening because he had applied to be a NASA astronaut. The shuttle did (eventually) launch ... and along with it, the all-science-media career of one Dr Karl Kruszelnicki. This is Dr Karl's last Great Moment in Science, as we know it—but don't worry, he'll still be around and firing on all cylinders—including on Triple J's Science with Dr Karl podcast. Science with Dr Karl

We know that the drug called cannabis, or marijuana, increases the appetitecommonly called the 'Marijuana Munchies', and we are finally getting closer to knowing what makes it happen. Half-a-billion years ago a biological system evolved to make sure that hungry animals would eat.

We know that the drug called cannabis, or marijuana, increases the appetitecommonly called the 'Marijuana Munchies', and we are finally getting closer to knowing what makes it happen. Half-a-billion years ago a biological system evolved to make sure that hungry animals would eat.

The ancient Romans thought that insects were attracted to bright light, and then there's the well-known phrase, "drawn like a moth to a flame", so it seems like people over many years have spotted insects coming into the lights, at night. But what's the real reason? Host: Dr Karl Kruszelnicki

The ancient Romans thought that insects were attracted to bright light, and then there's the well-known phrase, "drawn like a moth to a flame", so it seems like people over many years have spotted insects coming into the lights, at night. But what's the real reason? Host: Dr Karl Kruszelnicki

Some sleepers who act out their dreams are later diagnosed with Parkinson's disease. As Dr Karl explains, it's one of a few slightly odd new diagnostic tools. 

Some sleepers who act out their dreams are later diagnosed with Parkinson's disease. As Dr Karl explains, it's one of a few slightly odd new diagnostic tools. 

The power of smell can't be understated — our noses don't just sniff out tasty treats, they can also alert us to danger.  In this episode of Great Moments in Science, Dr Karl tells the story of a super-sniffer who might've unlocked a powerful diagnostic tool.

The power of smell can't be understated — our noses don't just sniff out tasty treats, they can also alert us to danger.  In this episode of Great Moments in Science, Dr Karl tells the story of a super-sniffer who might've unlocked a powerful diagnostic tool.

Atomic clocks are the most precise time-keepers we have. But that doesn't mean they can escape the timey wimey effects of gravity.  In this episode of Great Moments in Science, Dr Karl explains how this enables super-accurate clocks to not just measure time, but height as well.  

Atomic clocks are the most precise time-keepers we have. But that doesn't mean they can escape the timey wimey effects of gravity.  In this episode of Great Moments in Science, Dr Karl explains how this enables super-accurate clocks to not just measure time, but height as well.  

Humans have been dunking biscuits for as long as biscuits have existed.  But why do we do it? Why are soggy biscuits so darn good? In this archive episode of Great Moments in Science, Dr Karl submerges himself into the mechanics of this age-old activity.

Humans have been dunking biscuits for as long as biscuits have existed.  But why do we do it? Why are soggy biscuits so darn good? In this archive episode of Great Moments in Science, Dr Karl submerges himself into the mechanics of this age-old activity.

Thousands of people will descend on the tiny WA town of Exmouth later this month to witness the Moon block out the Sun for a whopping one minute.  But if you're a homebody not all that keen on a road trip, how long might it take to see a total solar eclipse from where you are right now? Dr Karl investigates in this archive episode of Great Moments in Science.

Thousands of people will descend on the tiny WA town of Exmouth later this month to witness the Moon block out the Sun for a whopping one minute.  But if you're a homebody not all that keen on a road trip, how long might it take to see a total solar eclipse from where you are right now? Dr Karl investigates in this archive episode of Great Moments in Science.

Green potatoes — would you like them here or there? Would you like them anywhere? Well as Dr Karl taught us last week, potatoes contain a potentially deadly chemical, and a green tinge is its greatest tell.  In this archive episode, we explore why green potatoes are best avoided. 

Green potatoes — would you like them here or there? Would you like them anywhere? Well as Dr Karl taught us last week, potatoes contain a potentially deadly chemical, and a green tinge is its greatest tell.  In this archive episode, we explore why green potatoes are best avoided. 

Given the right (or wrong) circumstances, the humble potato packs a punch.  It contains a chemical that could kill if ingested in large amounts. The catch-22? That chemical is exactly why potatoes taste so good.  In this archive episode of Great Moments, Dr Karl digs into the science. 

Given the right (or wrong) circumstances, the humble potato packs a punch.  It contains a chemical that could kill if ingested in large amounts. The catch-22? That chemical is exactly why potatoes taste so good.  In this archive episode of Great Moments, Dr Karl digs into the science. 

What you eat or drink just after you finish pumping iron is crucial to laying down muscle.  Dr Karl weighs up the best way to bulk up, in this archive episode of Great Moments in Science from 2011. 

What you eat or drink just after you finish pumping iron is crucial to laying down muscle.  Dr Karl weighs up the best way to bulk up, in this archive episode of Great Moments in Science from 2011. 

The destructive force of a wall of snow is well known. Major avalanches can not only kill, they can also completely reshape a landscape.   But it's not just mountainsides we need to worry about. There are also avalanches happening under the surface of the ocean — forging canyons and threatening our telecommunications.

The destructive force of a wall of snow is well known. Major avalanches can not only kill, they can also completely reshape a landscape.   But it's not just mountainsides we need to worry about. There are also avalanches happening under the surface of the ocean — forging canyons and threatening our telecommunications.

There are plenty of reasons why a person might poke their tongue out.  Sometimes it can be a rude or cute gesture. Maori warriors do it as a sign of defiance, and Tibetans do it as a greeting. But many times it's a sign of concentration. So here’s why your tongue helps your brain think. Host: Dr Karl Kruszelnicki

There are plenty of reasons why a person might poke their tongue out.  Sometimes it can be a rude or cute gesture. Maori warriors do it as a sign of defiance, and Tibetans do it as a greeting. But many times it's a sign of concentration. So here’s why your tongue helps your brain think. Host: Dr Karl Kruszelnicki

In development is an amazing new technology which may, eventually, turn your thoughts into speech. It's being designed to help people who can’t speak, turn what they're thinking into speech. But it’s still early days.

In development is an amazing new technology which may, eventually, turn your thoughts into speech. It's being designed to help people who can’t speak, turn what they're thinking into speech. But it’s still early days.

Athletes are not just fit, they also attract a lot of media attention, especially if stories are put around that COVID vaccines are a cause of death in this group. In late 2021 such claims were being made - and they’re plainly not true.

Athletes are not just fit, they also attract a lot of media attention, especially if stories are put around that COVID vaccines are a cause of death in this group. In late 2021 such claims were being made - and they’re plainly not true.

In 2022 we found that Neanderthal DNA could kill superbugs. Wait, what ... didn't Neanderthals die out?  Yes, but their hidden power could make them important in modern medicine.

In 2022 we found that Neanderthal DNA could kill superbugs. Wait, what ... didn't Neanderthals die out?  Yes, but their hidden power could make them important in modern medicine.

Continuing the story about the effects of alcohol we arrive at the “drunchies”—short for the “drunken munchies”. They’re what occur after a bout of too much drinking. You become very hungry and much your way through any fast food within reach. Host: Dr Karl Kruszelnicki

Continuing the story about the effects of alcohol we arrive at the “drunchies”—short for the “drunken munchies”. They’re what occur after a bout of too much drinking. You become very hungry and much your way through any fast food within reach. Host: Dr Karl Kruszelnicki

Alcohol in small quantities can make people sociable; but too much of it can mean hangovers and associated consumption of non-nutritional foodstuffs. There's a whole chemical family of 'alcohols', so what's the deal with the one that humans kinda like—ethanol.

Alcohol in small quantities can make people sociable; but too much of it can mean hangovers and associated consumption of non-nutritional foodstuffs. There's a whole chemical family of 'alcohols', so what's the deal with the one that humans kinda like—ethanol.

For some snapping spaghetti is sacrilege — but for others it’s science.

For some snapping spaghetti is sacrilege — but for others it’s science.

From spaghetti strands to trees to nanotubes — we need to know about the physics of rod-like structures.

From spaghetti strands to trees to nanotubes — we need to know about the physics of rod-like structures.

How do trees face an incoming threat if they can't move, see, or hear?

How do trees face an incoming threat if they can't move, see, or hear?

Trees are solid and dense. However, they're made from air. Wait, what?

Trees are solid and dense. However, they're made from air. Wait, what?

About 95 per cent of the mass in the universe seems to be missing — what's going on!?

About 95 per cent of the mass in the universe seems to be missing — what's going on!?

Our skin is like a personal space suit protecting us from the outside world. Skin is best when you are a child—because of the elastic protein keeping it fresh and supple—but, unfortunately, that freshness doesn’t last. Host: Dr Karl Kruszelnicki Producer: Diane Dean

Our skin is like a personal space suit protecting us from the outside world. Skin is best when you are a child—because of the elastic protein keeping it fresh and supple—but, unfortunately, that freshness doesn’t last. Host: Dr Karl Kruszelnicki Producer: Diane Dean

An interesting demographics exercise is to add up the number of humans who've existed. This is different from how many people are in a population—which in late November 2022, is about 8 billion. But using data going back as far as possible, the number of people who've existed is reckoned at over 100 billion. Host: Dr Karl Kruszelnicki

An interesting demographics exercise is to add up the number of humans who've existed. This is different from how many people are in a population—which in late November 2022, is about 8 billion. But using data going back as far as possible, the number of people who've existed is reckoned at over 100 billion. Host: Dr Karl Kruszelnicki

One might imagine that face masks work because the multiple layers will stop a virus getting through. But no, that's not it—they use a high-tech 'melt-blown' material, developed from a technique first noticed in volcano eruptions. Host: Dr Karl Kruszelnicki Producer: Diane Dean

One might imagine that face masks work because the multiple layers will stop a virus getting through. But no, that's not it—they use a high-tech 'melt-blown' material, developed from a technique first noticed in volcano eruptions. Host: Dr Karl Kruszelnicki Producer: Diane Dean

Nowadays we're pretty familiar with wearing a face mask to reduce infection rates, and that some masks are better than others.But understanding why the N95 mask is a really good mask one came as a surprise. Host: Dr Karl Kruszelnicki Producer: Diane Dean

Nowadays we're pretty familiar with wearing a face mask to reduce infection rates, and that some masks are better than others.But understanding why the N95 mask is a really good mask one came as a surprise. Host: Dr Karl Kruszelnicki Producer: Diane Dean

Nuclear weapons carry enormous destructive power in a very small package. A nuclear weapon weighing about a quarter of a ton can release as much energy as exploding 1.2 million tons of TNT – that’s a multiplication factor of about five million. During the Cold War the combined numbers of US and Soviet nuclear weapons reached about 70,000. There are not so many these days but there are still enough to end civilisation as we know it.

Nuclear weapons carry enormous destructive power in a very small package. A nuclear weapon weighing about a quarter of a ton can release as much energy as exploding 1.2 million tons of TNT – that’s a multiplication factor of about five million. During the Cold War the combined numbers of US and Soviet nuclear weapons reached about 70,000. There are not so many these days but there are still enough to end civilisation as we know it.

The further adventures of some of the most powerful events in our Universe: Gamma Ray Bursts. The biggest one recorded was in October 2022, in a galaxy far, far away. What would have happened if it had exploded inside our Milky Way galaxy?  

The further adventures of some of the most powerful events in our Universe: Gamma Ray Bursts. The biggest one recorded was in October 2022, in a galaxy far, far away. What would have happened if it had exploded inside our Milky Way galaxy?  

First on the list of Most Energetic Events Ever in our universe is The Big Bang. No mean contender for top ranking is the "Gamma Ray Burst" - aka the GRB. GRBs can put out more energy in a few seconds than our Sun produces in its 10-billion-year lifetime.

First on the list of Most Energetic Events Ever in our universe is The Big Bang. No mean contender for top ranking is the "Gamma Ray Burst" - aka the GRB. GRBs can put out more energy in a few seconds than our Sun produces in its 10-billion-year lifetime.

The invention of the elevator made city-living possible. It made possible a rapid mixing of cultures and concepts, efficient use of energy—and ultimately, increased economic output. And now there's a further improvement called 'destination despatching'.

The invention of the elevator made city-living possible. It made possible a rapid mixing of cultures and concepts, efficient use of energy—and ultimately, increased economic output. And now there's a further improvement called 'destination despatching'.

The first definite proof of a link between humans and dogs is a 15,000-year-old grave holding a dog, a man and a woman. Intensive breeding of dogs began about 200 years ago, which resulted in most of today's 450-or-so breeds. And there's a definite mutual appreciation society between people and canines

The first definite proof of a link between humans and dogs is a 15,000-year-old grave holding a dog, a man and a woman. Intensive breeding of dogs began about 200 years ago, which resulted in most of today's 450-or-so breeds. And there's a definite mutual appreciation society between people and canines

In 2013 the academic journal published an article called, “Taste perception: from the tongue to the testis”. It looked at some of the distinct taste sensations that we register in the Gustatory Cortex - the taste centre of our brain which are picked up by taste buds on the tongue. However, there's a difference between taste buds and taste receptors ... which is where the testis enters the story.

In 2013 the academic journal published an article called, “Taste perception: from the tongue to the testis”. It looked at some of the distinct taste sensations that we register in the Gustatory Cortex - the taste centre of our brain which are picked up by taste buds on the tongue. However, there's a difference between taste buds and taste receptors ... which is where the testis enters the story.

Earth's defence against the existential threat of extraterrestrial rocks has been bolstered.  But is it really all that important for humanity to have a plan of attack for an asteroid ambush?

Earth's defence against the existential threat of extraterrestrial rocks has been bolstered.  But is it really all that important for humanity to have a plan of attack for an asteroid ambush?

It wasn't the first, second or even third issue to come up in the wake of this year's huge undersea volcanic eruption in Tonga.  But the eruption, and the ensuing tsunamis, did have a far-reaching impact on the kingdom's neighbours and beyond — including on Australia's coastline. 

It wasn't the first, second or even third issue to come up in the wake of this year's huge undersea volcanic eruption in Tonga.  But the eruption, and the ensuing tsunamis, did have a far-reaching impact on the kingdom's neighbours and beyond — including on Australia's coastline. 

For a long time our home solar system was all we knew. But since we’ve gotten a better look at other systems near and far, it has become apparent... our solar system is weird.

For a long time our home solar system was all we knew. But since we’ve gotten a better look at other systems near and far, it has become apparent... our solar system is weird.

Dr Karl explains how artificial intelligence detects and distinguishes between look-alikes.

Dr Karl explains how artificial intelligence detects and distinguishes between look-alikes.

The term 'doppelgänger' goes back centuries, but in recent years the internet has made it much easier to find your look-alike

The term 'doppelgänger' goes back centuries, but in recent years the internet has made it much easier to find your look-alike

There's a precise science behind the impact of small, falling objects. Some can be deadly. Others don't pack much of a punch. 

There's a precise science behind the impact of small, falling objects. Some can be deadly. Others don't pack much of a punch. 

The final installment of why the Earth is suddenly speeding up—after more than a billion years of slowing down.  How do we measure the rate of the Earth’s revolution, and what happens when the time on our clocks doesn’t quite match up? 

The final installment of why the Earth is suddenly speeding up—after more than a billion years of slowing down.  How do we measure the rate of the Earth’s revolution, and what happens when the time on our clocks doesn’t quite match up? 

Part 2 of the explanation about the accelerating spin of the Earth - which is against the trend of the last one-and-a-half billion years.

Part 2 of the explanation about the accelerating spin of the Earth - which is against the trend of the last one-and-a-half billion years.

Part 1 about how the Earth is unexpectedly speeding up, and has recorded its shortest day ever – 1.59 milliseconds shorter than the standard 86,400 seconds

Part 1 about how the Earth is unexpectedly speeding up, and has recorded its shortest day ever – 1.59 milliseconds shorter than the standard 86,400 seconds

Electricity supply is shifting to renewables, so batteries are important. It might even be cheaper to power your house with the battery from your electric car, rather than batteries specifically designed for houses.

Electricity supply is shifting to renewables, so batteries are important. It might even be cheaper to power your house with the battery from your electric car, rather than batteries specifically designed for houses.

Nose-picking is something that people find disgusting—yet we still do it.  And how about the gunk that’s in your nose—is it ok to eat that?

Nose-picking is something that people find disgusting—yet we still do it.  And how about the gunk that’s in your nose—is it ok to eat that?

The highest standard for measuring body temperature is via a heart sensor—after that, it's from inside a body cavity; and you can do it from inside the mouth or the ear, but that's not as accurate, and even less so when measured on the skin. Measuring brain temperature is different again—and be astonished that the temperature of the human brain differs from the rest of the body.

The highest standard for measuring body temperature is via a heart sensor—after that, it's from inside a body cavity; and you can do it from inside the mouth or the ear, but that's not as accurate, and even less so when measured on the skin. Measuring brain temperature is different again—and be astonished that the temperature of the human brain differs from the rest of the body.

Have you ever been winded? You suddenly lose the ability to do something you've done 15 times each minute of your life. It's one part anatomy, one part physiology, and one part don't panic.

Have you ever been winded? You suddenly lose the ability to do something you've done 15 times each minute of your life. It's one part anatomy, one part physiology, and one part don't panic.

Dogs tend to hang around humans but do they really love us—and what’s with the head tilt? Their affability might be due to two genes known to influence sociability in mammals. Gradually genetics turned dogs and humans into best friends.

Dogs tend to hang around humans but do they really love us—and what’s with the head tilt? Their affability might be due to two genes known to influence sociability in mammals. Gradually genetics turned dogs and humans into best friends.

Measles is a nasty infection that you don't want to get. It can cause death and, what's more, it can also erase your immune system's memory. Only relatively recently scientists have measured this directly - by concentrating on antibodies – which can be generated by natural infection, and by vaccines.

Measles is a nasty infection that you don't want to get. It can cause death and, what's more, it can also erase your immune system's memory. Only relatively recently scientists have measured this directly - by concentrating on antibodies – which can be generated by natural infection, and by vaccines.

Anticipation is a strange experience. It can take you all the way from hope and trust, to anxiety and fear. But there’s a happy balancing point where anticipation can enrich your life.

Anticipation is a strange experience. It can take you all the way from hope and trust, to anxiety and fear. But there’s a happy balancing point where anticipation can enrich your life.

Who’d’ve thought that one of the most sober animals is the humble hamster. They love alcohol but it doesn’t affect them. And who’d’ve thought that there’s a way to measure inebriation levels in animals - it’s called the Wobbling Scale – but hamsters NEVER wobble. 

Who’d’ve thought that one of the most sober animals is the humble hamster. They love alcohol but it doesn’t affect them. And who’d’ve thought that there’s a way to measure inebriation levels in animals - it’s called the Wobbling Scale – but hamsters NEVER wobble. 

The average recommendation is to wash your bed sheets at least every two weeks. This is because every day you shed a mix of dead skin cells, sweat, germs, and body oils.. Sometimes you can delay bed sheet washing, it all depends on what kind of things you get up to in bed.

The average recommendation is to wash your bed sheets at least every two weeks. This is because every day you shed a mix of dead skin cells, sweat, germs, and body oils.. Sometimes you can delay bed sheet washing, it all depends on what kind of things you get up to in bed.

Very long and very widebut only a few kilometres thick, atmospheric rivers carry water from the tropics towards the poles – and they shift huge amounts of heat as well. A few decades ago, atmospheric rivers hit West Antarctica and collapsed two massive ice shelves.

Very long and very widebut only a few kilometres thick, atmospheric rivers carry water from the tropics towards the poles – and they shift huge amounts of heat as well. A few decades ago, atmospheric rivers hit West Antarctica and collapsed two massive ice shelves.

A discovery in weather in the 1990s was the Atmospheric River. They've been around for pretty much ever though - one of them bankrupted California in 1862, and another dumped lots and lots of water onto Brisbane, in February 2022.

A discovery in weather in the 1990s was the Atmospheric River. They've been around for pretty much ever though - one of them bankrupted California in 1862, and another dumped lots and lots of water onto Brisbane, in February 2022.

Whales are the giants of the marine realm, and here's why they get that way. This episode was originally published in May 2018

Whales are the giants of the marine realm, and here's why they get that way. This episode was originally published in May 2018

The star Earendel came into existence a long time ago, and is now famous as the most distant single star that astronomers have been able to obtain an image of.

The star Earendel came into existence a long time ago, and is now famous as the most distant single star that astronomers have been able to obtain an image of.

The Koran, the Bible, the Sanskrit Mahabharata, and the Greek Illiad all mention plagues of locusts, and they're seen as carvings in ancient Egyptian tombs. Large numbers of locust could have come about because, in certain circumstances, grasshoppers metamorphose—into locusts.

The Koran, the Bible, the Sanskrit Mahabharata, and the Greek Illiad all mention plagues of locusts, and they're seen as carvings in ancient Egyptian tombs. Large numbers of locust could have come about because, in certain circumstances, grasshoppers metamorphose—into locusts.

The drug ivermectin is really good for treating worms; unfortunately it was falsely promoted as a COVID cure due to data errors, drug trial anomalies, or insufficient publication review.

The drug ivermectin is really good for treating worms; unfortunately it was falsely promoted as a COVID cure due to data errors, drug trial anomalies, or insufficient publication review.

There are many cases of drugs being repurposed once a new aspect of them is discovered—their new use is often very beneficial. One such drug is ivermectin. It works well against various parasitic infections. It does not work against COVID.

There are many cases of drugs being repurposed once a new aspect of them is discovered—their new use is often very beneficial. One such drug is ivermectin. It works well against various parasitic infections. It does not work against COVID.

Ball games were happening 3,500 years ago, and ever since then we’ve bounced and batted in all sorts of fun ways. We're especially interested in the mechanics of a ball curving as it travels through the air—which happens in swing bowling.

Ball games were happening 3,500 years ago, and ever since then we’ve bounced and batted in all sorts of fun ways. We're especially interested in the mechanics of a ball curving as it travels through the air—which happens in swing bowling.

At Australia's Antarctic base they do lots of cool science stuff, and aim to create as little waste as possible—including the toilets. There's actually a toilet known as the 'Fire Breathing Dragon'—so more exciting than its official name of Electric Incinerating Toilet.

At Australia's Antarctic base they do lots of cool science stuff, and aim to create as little waste as possible—including the toilets. There's actually a toilet known as the 'Fire Breathing Dragon'—so more exciting than its official name of Electric Incinerating Toilet.

Wood has a loads of potential—from it we can make semi-conductors, batteries, steel, concrete, even plastics. It does need a lot of processing but we already do that with materials like steel, glass and concrete.

Wood has a loads of potential—from it we can make semi-conductors, batteries, steel, concrete, even plastics. It does need a lot of processing but we already do that with materials like steel, glass and concrete.

We're now quite familiar with terms like 'herd immunity' and 'epidemic', and that when separate groups of people—with separate germs—meet for the very first time, things can turn out badly. If you have never been exposed to a specific germ you won't be primed for protection against it.

We're now quite familiar with terms like 'herd immunity' and 'epidemic', and that when separate groups of people—with separate germs—meet for the very first time, things can turn out badly. If you have never been exposed to a specific germ you won't be primed for protection against it.

When digging the compost pile into the garden, Dr Karl noticed a ball of entangled shape-shifting worms. You might think 'yuck'—but there's a 'wow' factor because some animal groupings can generate intelligence, giving the group an advantage over solitary individuals.

When digging the compost pile into the garden, Dr Karl noticed a ball of entangled shape-shifting worms. You might think 'yuck'—but there's a 'wow' factor because some animal groupings can generate intelligence, giving the group an advantage over solitary individuals.

The final piece about why the 100 million or so black holes in our Milky Way galaxy are missing.

The final piece about why the 100 million or so black holes in our Milky Way galaxy are missing.

More on the almost-emptiness that is black holes. Because they're invisible, they're difficult to find—but sometimes get discovered because they give off X-rays.

More on the almost-emptiness that is black holes. Because they're invisible, they're difficult to find—but sometimes get discovered because they give off X-rays.

Even though it sounds totally crazy, astronomers are very confident that black holes exist. Our galazy is really old, it should carry at least 100 million black holes but we’ve found only a couple of dozen of them.

Even though it sounds totally crazy, astronomers are very confident that black holes exist. Our galazy is really old, it should carry at least 100 million black holes but we’ve found only a couple of dozen of them.

There's really no 'genteel' way to say it, this week we're... passing wind. But even though it's totally natural, it can be embarrassing.

There's really no 'genteel' way to say it, this week we're... passing wind. But even though it's totally natural, it can be embarrassing.

It used to be thought that a pathogen (or germ) and its host develop in a 'mutually benign relationship'—this was called the 'Law of Declining Virulence'. If the common cold killed us there would be less hosts and the virus would decrease. So the common cold virus mutated to become less lethal, and more common. The Law of Declining Virulence was debunked in the 1980s, and the pathogen/host relationship is actually pretty complicated.

It used to be thought that a pathogen (or germ) and its host develop in a 'mutually benign relationship'—this was called the 'Law of Declining Virulence'. If the common cold killed us there would be less hosts and the virus would decrease. So the common cold virus mutated to become less lethal, and more common. The Law of Declining Virulence was debunked in the 1980s, and the pathogen/host relationship is actually pretty complicated.

Power steering on a car involves various rods of steel moving relative to one another. How the rods connect is why mechanics are dealing with an unexpected problem.

Power steering on a car involves various rods of steel moving relative to one another. How the rods connect is why mechanics are dealing with an unexpected problem.

Thanks to some fuzzy-looking photos, bat echolocation just got more amazing. This program was originally published on 3 September 2019

Thanks to some fuzzy-looking photos, bat echolocation just got more amazing. This program was originally published on 3 September 2019

Why do some people get headaches from eating ice-cream or drinking something very cold. This program was originally published on 19 February 2019

Why do some people get headaches from eating ice-cream or drinking something very cold. This program was originally published on 19 February 2019

It's not just their ability to run 42 kilometres that separates marathon runners from the rest of us. They've got a secret energy source in their gut. This program was originally published on 5 November 2019

It's not just their ability to run 42 kilometres that separates marathon runners from the rest of us. They've got a secret energy source in their gut. This program was originally published on 5 November 2019

Combustion engines are marvels of engineering and power, but will they feature in the cars of the future? This program was originally published on 8 October 2019

Combustion engines are marvels of engineering and power, but will they feature in the cars of the future? This program was originally published on 8 October 2019

When a balloon pops, sometimes it leaves lots of small fragments of rubber, and sometimes it leaves just a couple of larger pieces. What's going on? This program was originally published on 14 May 2019

When a balloon pops, sometimes it leaves lots of small fragments of rubber, and sometimes it leaves just a couple of larger pieces. What's going on? This program was originally published on 14 May 2019

Some birds, especially parrots, songbirds and the entire crow family, are surprisingly intelligent - and not just compared with other birds.

Some birds, especially parrots, songbirds and the entire crow family, are surprisingly intelligent - and not just compared with other birds.

Bird poo is usually coloured white—because of the way birds excrete excess nitrogen. But the poo can sometimes be a different colour—because of their diet. Creatures have evolved three main ways of getting rid of excess nitrogen.

Bird poo is usually coloured white—because of the way birds excrete excess nitrogen. But the poo can sometimes be a different colour—because of their diet. Creatures have evolved three main ways of getting rid of excess nitrogen.

Australia is very sunny, and because of that it's a skin cancer hotspot. UV light triggers skin cancer but sunscreen blocks UV light—so is it better to apply more? Not really—and do not mix your sunscreens because there are two different types.

Australia is very sunny, and because of that it's a skin cancer hotspot. UV light triggers skin cancer but sunscreen blocks UV light—so is it better to apply more? Not really—and do not mix your sunscreens because there are two different types.

Even in this day and age there are people who think that the earth is flat. The educated people of ancient Greece - about two and a half thousand years ago - had already figured out that the Earth was round. They observed the data that was right in front of them.

Even in this day and age there are people who think that the earth is flat. The educated people of ancient Greece - about two and a half thousand years ago - had already figured out that the Earth was round. They observed the data that was right in front of them.

When diving to very great depths the body has mechanisms to cope - on the way down, and then back to the surface.

When diving to very great depths the body has mechanisms to cope - on the way down, and then back to the surface.

Free diving has a current world record of around 214 m straight down—that's greater than the height of 50-storey building. For thousands of years free divers would collect salvage from shipwrecks to build underwater barricades against invaders.

Free diving has a current world record of around 214 m straight down—that's greater than the height of 50-storey building. For thousands of years free divers would collect salvage from shipwrecks to build underwater barricades against invaders.

The benefits of natural foods have always been a big deal. And there really is a tiny nugget of truth in the proclamations—but it's been greatly hyped

The benefits of natural foods have always been a big deal. And there really is a tiny nugget of truth in the proclamations—but it's been greatly hyped

We’ve been flying planes with engines for over a century, so have a guess at the record for the longest duration of powered flight - more than two months! And it was set more than half a century ago.

We’ve been flying planes with engines for over a century, so have a guess at the record for the longest duration of powered flight - more than two months! And it was set more than half a century ago.

Further intel on a mistruth being spread by social media - that COVID-19 vaccines can cause both male and female infertility. With males, the COVID disease can cause infertility, the COVID vaccines do not. The false claim about female infertility was that the vaccine would make the woman’s own immune system attack her natural proteins. No studies have proved this claim.

Further intel on a mistruth being spread by social media - that COVID-19 vaccines can cause both male and female infertility. With males, the COVID disease can cause infertility, the COVID vaccines do not. The false claim about female infertility was that the vaccine would make the woman’s own immune system attack her natural proteins. No studies have proved this claim.

We have several pretty good COVID-19 vaccines. They have enormously reduced the risks against getting sick, or dying from COVID. So why are people saying “no” to COVID vaccines? It seems the main reason for avoiding the very protective vaccines is wave after wave of misinformation and dis-information in social media. Let's make some aspects easier to understand.

We have several pretty good COVID-19 vaccines. They have enormously reduced the risks against getting sick, or dying from COVID. So why are people saying “no” to COVID vaccines? It seems the main reason for avoiding the very protective vaccines is wave after wave of misinformation and dis-information in social media. Let's make some aspects easier to understand.

Science is meant to be about data and logic, and yet that doesn't always stop it from being discriminatory. Women in science don't always get the recognition they deserve, but they have made extraordinary contributions.

Science is meant to be about data and logic, and yet that doesn't always stop it from being discriminatory. Women in science don't always get the recognition they deserve, but they have made extraordinary contributions.

If an equinox is truly equal, it should fall on a day when there's just as much darkness as there is daylight. But that's not always exactly the case, so what's going on?

If an equinox is truly equal, it should fall on a day when there's just as much darkness as there is daylight. But that's not always exactly the case, so what's going on?

What happens when two stars eat each other to death? And does one get the last laugh in this tale of cosmic cannibalism?

What happens when two stars eat each other to death? And does one get the last laugh in this tale of cosmic cannibalism?

Ever wondered how in Western gunfights, the person who is first to draw their gun is the first to get shot? It turns out that under threat, our muscles work faster than normal.

Ever wondered how in Western gunfights, the person who is first to draw their gun is the first to get shot? It turns out that under threat, our muscles work faster than normal.

Our long-held beliefs about metabolism - you know that thing supposedly responsible for making you put on weight with age - might be wrong.

Our long-held beliefs about metabolism - you know that thing supposedly responsible for making you put on weight with age - might be wrong.

For most of us, travelling by plane means boarding and buckling in. But Wing Walkers don't stop there - they venture outside of the plane too.

For most of us, travelling by plane means boarding and buckling in. But Wing Walkers don't stop there - they venture outside of the plane too.

Can you tell someone is sick just by looking at them? It turns out many of us can.

Can you tell someone is sick just by looking at them? It turns out many of us can.

There are mysteries all around us, but here's one that might just be the next Big Breakthrough of Physics! The Muon Magnetic Anomaly.

There are mysteries all around us, but here's one that might just be the next Big Breakthrough of Physics! The Muon Magnetic Anomaly.

There are mysteries all around us, but here's one that might just be the next Big Breakthrough of Physics! The Muon Magnetic Anomaly.

There are mysteries all around us, but here's one that might just be the next Big Breakthrough of Physics! The Muon Magnetic Anomaly.

There are mysteries all around us, but here's one that might just be the next Big Breakthrough of Physics! The Muon Magnetic Anomaly.

There are mysteries all around us, but here's one that might just be the next Big Breakthrough of Physics! The Muon Magnetic Anomaly.

Is it true that Big Agriculture has totally ruined our soil, and used up practically all of its goodness, so there’s barely any nutrition left in our food? Well, no - but like all good myths, there is a small grain of truth.

Is it true that Big Agriculture has totally ruined our soil, and used up practically all of its goodness, so there’s barely any nutrition left in our food? Well, no - but like all good myths, there is a small grain of truth.

There's a lot of claims out there about the benefits of taking collagen supplements. Last week we spoke about the structure of collagen and what it does in the body. So what happens when you eat or drink it as a supplement?

There's a lot of claims out there about the benefits of taking collagen supplements. Last week we spoke about the structure of collagen and what it does in the body. So what happens when you eat or drink it as a supplement?

One thing that we are quite confident about is that collagen is part-and-parcel of having healthy and glowing skin. But what about the claim that if you eat or drink it, the molecules will magically make their way to exactly where they are needed to smooth out that wrinkle on your face?

One thing that we are quite confident about is that collagen is part-and-parcel of having healthy and glowing skin. But what about the claim that if you eat or drink it, the molecules will magically make their way to exactly where they are needed to smooth out that wrinkle on your face?

Astronomers have measured something amazing – a black hole eating a neutron star. In fact, they found this happening twice in just 10 days. We have found dozens of black holes smashing into each other, and we’ve found a handful neutron stars smashing into each other, but a black hole eating a neutron star – well that’s new!

Astronomers have measured something amazing – a black hole eating a neutron star. In fact, they found this happening twice in just 10 days. We have found dozens of black holes smashing into each other, and we’ve found a handful neutron stars smashing into each other, but a black hole eating a neutron star – well that’s new!

What creature has survived five mass extinctions, can do just as well in space as on earth, withstand temperatures as hot and cold as you can imagine and perform show-stopping feats of survival? The mighty water bear!

What creature has survived five mass extinctions, can do just as well in space as on earth, withstand temperatures as hot and cold as you can imagine and perform show-stopping feats of survival? The mighty water bear!

What can chickens teach us about the way out of a pandemic?

What can chickens teach us about the way out of a pandemic?

Chlorophyll water has re-emerged as a darling of the wellness world - but does it stand up to the hype?

Chlorophyll water has re-emerged as a darling of the wellness world - but does it stand up to the hype?

Chlorophyll water has re-emerged as a darling of the wellness world - but does it stand up to the hype?

Chlorophyll water has re-emerged as a darling of the wellness world - but does it stand up to the hype?

It's not a good plan to skimp on sleep. A regular seven to nine hours a night puts you in a better position to live longer, and better.

It's not a good plan to skimp on sleep. A regular seven to nine hours a night puts you in a better position to live longer, and better.

Vaccines are not a new invention. One of the very first effective vaccinations against disease came from China about 1,500 years ago - and was widely used there to combat Smallpox.

Vaccines are not a new invention. One of the very first effective vaccinations against disease came from China about 1,500 years ago - and was widely used there to combat Smallpox.

Today’s technology has given us an avalanche of information about how, and where, animals travel. We have radar, motion-activated cameras, drones, DNA sequencing, as well as battery-powered geo-location devices that are light enough to be carried by butterfly, but powerful enough to send their data to orbiting satellites.

Today’s technology has given us an avalanche of information about how, and where, animals travel. We have radar, motion-activated cameras, drones, DNA sequencing, as well as battery-powered geo-location devices that are light enough to be carried by butterfly, but powerful enough to send their data to orbiting satellites.

Our modern periodic table has 118 known chemical elements. About 94 of them occur naturally and the rest were manufactured by us. An element is a pure substance made of atoms that have the same numbers of protons in their central nucleus. What does an atom look like, and where are these protons?

Our modern periodic table has 118 known chemical elements. About 94 of them occur naturally and the rest were manufactured by us. An element is a pure substance made of atoms that have the same numbers of protons in their central nucleus. What does an atom look like, and where are these protons?

Dr Karl still has more to tell us about the first known computer - this week it's Part 3. After its discovery it took a little while to clean up - and for the conservators to see what was on the inside. They still didn't know what it was meant to do.

Dr Karl still has more to tell us about the first known computer - this week it's Part 3. After its discovery it took a little while to clean up - and for the conservators to see what was on the inside. They still didn't know what it was meant to do.

Going deeper into the Antikythera Mechanism - a box with 30 bronze gears inside connected to three dials outside. It predicted the movements of a bunch of astronomical data. But let's start with eclipses of the Sun.

Going deeper into the Antikythera Mechanism - a box with 30 bronze gears inside connected to three dials outside. It predicted the movements of a bunch of astronomical data. But let's start with eclipses of the Sun.

We tend to think of computers as being a fairly recent invention. But the world’s oldest known computer is actually a few thousand years old. It’s called the Antikythera Mechanism

We tend to think of computers as being a fairly recent invention. But the world’s oldest known computer is actually a few thousand years old. It’s called the Antikythera Mechanism

Gazing off into empty space or being the target of a ‘stare bear’, it can happen to us all. Staring into the middle distance can be relaxing and head-clearing, but fixing our eyes on nothing at all for a very long time can be just plain dangerous.

Gazing off into empty space or being the target of a ‘stare bear’, it can happen to us all. Staring into the middle distance can be relaxing and head-clearing, but fixing our eyes on nothing at all for a very long time can be just plain dangerous.

The last few episodes have considered the difference between a virus and a bacterium; wondered whether a virus is alive or not; and looked at our discovery of these incredibly tiny critters. While mysteries surrounding viruses are intriguing, without them we couldn’t have babies or even think.

The last few episodes have considered the difference between a virus and a bacterium; wondered whether a virus is alive or not; and looked at our discovery of these incredibly tiny critters. While mysteries surrounding viruses are intriguing, without them we couldn’t have babies or even think.

This COVID-19 pandemic is the first one for 102 years. In 1918-1920 we had an influenza pandemic, which we now refer to as the Spanish Flu. Back then we didn’t know about a thing called a ‘virus’, so in 1918 no-one knew what was killing people. But we did know about germs.

This COVID-19 pandemic is the first one for 102 years. In 1918-1920 we had an influenza pandemic, which we now refer to as the Spanish Flu. Back then we didn’t know about a thing called a ‘virus’, so in 1918 no-one knew what was killing people. But we did know about germs.

Bacteria and viruses both have the genetic code needed to make babies but only a bacterium has all the biological machinery to make another bacterium. A virus has to get into a cell and make it start manufacturing copies of the virus. So, is a virus 'alive' – well, depends on the definition.

Bacteria and viruses both have the genetic code needed to make babies but only a bacterium has all the biological machinery to make another bacterium. A virus has to get into a cell and make it start manufacturing copies of the virus. So, is a virus 'alive' – well, depends on the definition.

2020 will be remembered as the Year of the Virus – the first year of the COVID-19 pandemic. By early 2021 the COVID virus had truly left its mark on our population, lifestyle, and biosphere. But the universe is complicated, and viruses can be good guys too.

2020 will be remembered as the Year of the Virus – the first year of the COVID-19 pandemic. By early 2021 the COVID virus had truly left its mark on our population, lifestyle, and biosphere. But the universe is complicated, and viruses can be good guys too.

Trying to talk about the dollar value of a human life really sounds like cold hard economics. Knowing how the calculations are done is chilling. But human life does have a value. Bizarrely, trying to work that out began with trying to work out the "value of death".

Trying to talk about the dollar value of a human life really sounds like cold hard economics. Knowing how the calculations are done is chilling. But human life does have a value. Bizarrely, trying to work that out began with trying to work out the "value of death".

Fake News has been around for thousands of years. You’ve probably heard of Nero, who was accused of playing the fiddle while Rome burned. But nowadays, the word gets around a lot faster. Thanks to the Internet and Social Media, a lie can travel around the world before the truth has even got out of bed. So fake news spreads quickly, and it takes more time to set straight than it took to tell the original lie.

Fake News has been around for thousands of years. You’ve probably heard of Nero, who was accused of playing the fiddle while Rome burned. But nowadays, the word gets around a lot faster. Thanks to the Internet and Social Media, a lie can travel around the world before the truth has even got out of bed. So fake news spreads quickly, and it takes more time to set straight than it took to tell the original lie.

More on how under-rated our sense of smell is – and how loss of smell can be an early indicator of COVID-19. In your DNA many of the genes associated with smell are located right next to a big bunch of genes that form your immune system. As a baseline, pre-COVID-19, about 1-5% of the general population had no sense of smell, and another 5-13% had a lessened sense of smell. But COVID-19 has bumped these percentages way up.

More on how under-rated our sense of smell is – and how loss of smell can be an early indicator of COVID-19. In your DNA many of the genes associated with smell are located right next to a big bunch of genes that form your immune system. As a baseline, pre-COVID-19, about 1-5% of the general population had no sense of smell, and another 5-13% had a lessened sense of smell. But COVID-19 has bumped these percentages way up.

We see our human sense of smell as woefully inadequate compared to other animals – but awareness of our sense of smell has become more of a hot topic recently with the COVID-19 pandemic. A significant number of people who get the virus lose their sense of smell early on. It seems that a loss of smell can be a very good early sign of COVID-19 infection. 

We see our human sense of smell as woefully inadequate compared to other animals – but awareness of our sense of smell has become more of a hot topic recently with the COVID-19 pandemic. A significant number of people who get the virus lose their sense of smell early on. It seems that a loss of smell can be a very good early sign of COVID-19 infection. 

In a classic scientific 'urban myth' a physics student is asked to measure the height of a building using a barometer. In 2020 French and Italian physicists wrote a paper called 61 Ways To Measure The Height Of A Building With A Smart Phone. This opened up a bunch of extra-modern measuring methods because of the smartphone's array of internal sensory gadgets.

In a classic scientific 'urban myth' a physics student is asked to measure the height of a building using a barometer. In 2020 French and Italian physicists wrote a paper called 61 Ways To Measure The Height Of A Building With A Smart Phone. This opened up a bunch of extra-modern measuring methods because of the smartphone's array of internal sensory gadgets.

Modern, pre-COVID, travel means it’s possible to trip around the world quite quickly. What if we had a super-advanced future rocket technology that could keep us accelerating at 1G. You could travel billions of light years - in less than a human lifetime!

Modern, pre-COVID, travel means it’s possible to trip around the world quite quickly. What if we had a super-advanced future rocket technology that could keep us accelerating at 1G. You could travel billions of light years - in less than a human lifetime!

During World War II a curious aircraft was built by the German air force. Its purpose was to combat Allied bombers, but not everything went to plan. What sounded like a ‘good idea at the time’ became, probably, the Worst Plane of World War II.

During World War II a curious aircraft was built by the German air force. Its purpose was to combat Allied bombers, but not everything went to plan. What sounded like a ‘good idea at the time’ became, probably, the Worst Plane of World War II.

Why would the fossil fuel company BP promote the idea of reducing our individual 'carbon footprint'?

Why would the fossil fuel company BP promote the idea of reducing our individual 'carbon footprint'?

Climate change has begun displacing species, but just how many are on the move?

Climate change has begun displacing species, but just how many are on the move?

What was the mysterious Carrington Event of 1859? And why did it affect telegraph systems?

What was the mysterious Carrington Event of 1859? And why did it affect telegraph systems?

Is it true that our bodies would prefer the 'Paleo diet'?

Is it true that our bodies would prefer the 'Paleo diet'?

What twisted trickery causes ribbons to curl?

What twisted trickery causes ribbons to curl?

What's the maximum number of hot dogs someone could eat in 10 minutes?

What's the maximum number of hot dogs someone could eat in 10 minutes?

Where does the world's dust come from? And how does it constantly fill up our homes!?

Where does the world's dust come from? And how does it constantly fill up our homes!?

Are discussions about your individual 'carbon footprint' really a distraction, shifting blame onto everyday citizens?

Are discussions about your individual 'carbon footprint' really a distraction, shifting blame onto everyday citizens?

Would you eat a hamburger patty that was grown in a lab? What about fake meat that looks and tastes just like the real thing?

Would you eat a hamburger patty that was grown in a lab? What about fake meat that looks and tastes just like the real thing?

A cuppa tea can be a life-saver - sometimes, literally!

A cuppa tea can be a life-saver - sometimes, literally!

Understanding thyself, and taking the middle path, can lead to a much faster and calmer parking experience

Understanding thyself, and taking the middle path, can lead to a much faster and calmer parking experience

Could we really rid the world of Hepatitis C?

Could we really rid the world of Hepatitis C?

Hepatitis C is one sneaky little disease, caused by an equally sneaky virus.

Hepatitis C is one sneaky little disease, caused by an equally sneaky virus.

What is it with red food and stains? So many things!

What is it with red food and stains? So many things!

Regrowing your tail is one thing - but what if you lose more than your tail in the first place?

Regrowing your tail is one thing - but what if you lose more than your tail in the first place?

Copper is like kryptonite to COVID-19.

Copper is like kryptonite to COVID-19.

They can be superemassive, but black holes still have no size.

They can be superemassive, but black holes still have no size.

Why you should always read back copies of the Journal of Fluid Mechanics.

Why you should always read back copies of the Journal of Fluid Mechanics.

That's not a dinosaur - it's a flying catapult!

That's not a dinosaur - it's a flying catapult!

Why are scientists exercising fish ... with a coffee plunger?

Why are scientists exercising fish ... with a coffee plunger?

This creature has the only known case of an 'on-demand anus'

This creature has the only known case of an 'on-demand anus'

The anus is highlight of animal evolution - but it's still full of surprises.

The anus is highlight of animal evolution - but it's still full of surprises.

They've got brains smaller than a pinhead, but spiders can count!

They've got brains smaller than a pinhead, but spiders can count!

Arachnophobes beware - flying B-grade horror spiders ahoy!

Arachnophobes beware - flying B-grade horror spiders ahoy!

The short story: he passed the test. Again.

The short story: he passed the test. Again.

There are very few places weird enough to test out Einstein's General Theory of Relativity.

There are very few places weird enough to test out Einstein's General Theory of Relativity.

At last - the real secret to the perfect espresso!

At last - the real secret to the perfect espresso!

A lot of players had a role in our horrific 2019/2020 bushfire season. Luckily, El Nino was not one of them.

A lot of players had a role in our horrific 2019/2020 bushfire season. Luckily, El Nino was not one of them.

Are these bushfires really unprecedented and related to global warming?

Are these bushfires really unprecedented and related to global warming?

The science behind our cataclysmic bushfire season

The science behind our cataclysmic bushfire season

The truth behind NASA's 'billion dollar' space pen.

The truth behind NASA's 'billion dollar' space pen.

Medieval people thought the world was flat right? Wrong.

Medieval people thought the world was flat right? Wrong.

Spiderman has got nothing on geckos when it comes to sticking to walls.

Spiderman has got nothing on geckos when it comes to sticking to walls.

What our brains do when we clock off for the night...

What our brains do when we clock off for the night...

If mobile phones don't cause cancer, why did two US studies show they do?

If mobile phones don't cause cancer, why did two US studies show they do?

5G promises incredibly fast download speeds - but what about those cancer rumours?

5G promises incredibly fast download speeds - but what about those cancer rumours?

Coffee or a nap? Actually, both.

Coffee or a nap? Actually, both.

If you're pregnant, a bloke or a beer drinker, you're a prime target for mosquitos.

If you're pregnant, a bloke or a beer drinker, you're a prime target for mosquitos.

If you're bursting to shout "Bernoulli!", think again ... Also, CONGRATULATIONS to Dr Karl from all of us at ABC Science! http://ab.co/2raH8Wj

If you're bursting to shout "Bernoulli!", think again ... Also, CONGRATULATIONS to Dr Karl from all of us at ABC Science! http://ab.co/2raH8Wj

Obesity has been on the rise since the mid-seventies. As have ultraprocessed foods. Co-inky-dink?

Obesity has been on the rise since the mid-seventies. As have ultraprocessed foods. Co-inky-dink?

Can you be truly healthy on a diet that excludes both meat and dairy?

Can you be truly healthy on a diet that excludes both meat and dairy?

It's not just their ability to run 42 kilometres that separates marathon runners from the rest of us. They've got a secret energy source in their gut.

It's not just their ability to run 42 kilometres that separates marathon runners from the rest of us. They've got a secret energy source in their gut.

Have you ever been winded? You suddenly lose the ability to do something you've done 15 times each minute of your life. But why?

Have you ever been winded? You suddenly lose the ability to do something you've done 15 times each minute of your life. But why?

At last - the answer to the burning question in kitchens the world over: does the dishwasher blunt your sharp knife?

At last - the answer to the burning question in kitchens the world over: does the dishwasher blunt your sharp knife?

Have you heard that you shouldn't put your sharp stainless steel kitchen knives in the dishwasher because they might go blunt?

Have you heard that you shouldn't put your sharp stainless steel kitchen knives in the dishwasher because they might go blunt?

Combustion engines are marvels of engineering and power, but will they feature in the cars of the future?

Combustion engines are marvels of engineering and power, but will they feature in the cars of the future?

We all go through slow patches - but the Earth went through a famous boring phase that lasted one billion years. Or did it ...

We all go through slow patches - but the Earth went through a famous boring phase that lasted one billion years. Or did it ...

A new year, and a new crop of research to make us laugh and then make us think.

A new year, and a new crop of research to make us laugh and then make us think.

Could a glowing red sunset really foretell the next morning's weather?

Could a glowing red sunset really foretell the next morning's weather?

Jargon has way more uses than just playing Buzzword Bingo. It's a popular item in the propaganda and social toolkits.

Jargon has way more uses than just playing Buzzword Bingo. It's a popular item in the propaganda and social toolkits.

Thanks to some fuzzy-looking photos, bat echolocation just got more amazing.

Thanks to some fuzzy-looking photos, bat echolocation just got more amazing.

Joy Milne has a superpower. She can smell Parkinson's disease - years before it's diagnosed.

Joy Milne has a superpower. She can smell Parkinson's disease - years before it's diagnosed.

Tabloids love using 'Frankenstein' in headlines about science research. But this time, they weren't completely wrong.

Tabloids love using 'Frankenstein' in headlines about science research. But this time, they weren't completely wrong.

A nine second difference between physics experiments could have big implications. A whole universe worth of them!

A nine second difference between physics experiments could have big implications. A whole universe worth of them!

As if our regular universe isn't crazy enough - there might be a completely different 'mirror' universe lurking amongst us!

As if our regular universe isn't crazy enough - there might be a completely different 'mirror' universe lurking amongst us!

The future of sand is ... recycled plastic?

The future of sand is ... recycled plastic?

How could something as common as sand possibly be running low?

How could something as common as sand possibly be running low?

There's plenty of evidence that Marco Polo didn't introduce pasta from China. So where did that myth start?

There's plenty of evidence that Marco Polo didn't introduce pasta from China. So where did that myth start?

We all know that Marco Polo brought spaghetti to the western world from his travels in China. Or did he?

We all know that Marco Polo brought spaghetti to the western world from his travels in China. Or did he?

A meeting in 1953 created the formula for a smokescreen that's still playing out today. And it's gone way beyond tobacco.

A meeting in 1953 created the formula for a smokescreen that's still playing out today. And it's gone way beyond tobacco.

When the science is certain, how do you push a product that kills? Ask Big PR.

When the science is certain, how do you push a product that kills? Ask Big PR.

With our planets spread far and wide - and no super-sized Earths - we're nothing like the other solar systems we've found.

With our planets spread far and wide - and no super-sized Earths - we're nothing like the other solar systems we've found.

If mobile phones don't cause cancer, why did two US studies show they do?

If mobile phones don't cause cancer, why did two US studies show they do?

5G promises incredibly fast download speeds - but what about those cancer rumours?

5G promises incredibly fast download speeds - but what about those cancer rumours?

When it comes to making gold, alchemists never stood a chance. For that magic you need cataclysmic collisions, dying megastars and black holes.

When it comes to making gold, alchemists never stood a chance. For that magic you need cataclysmic collisions, dying megastars and black holes.

Gold can come from jewellery shops, bank heists, Mints and mines. But where is gold made?

Gold can come from jewellery shops, bank heists, Mints and mines. But where is gold made?

When a balloon pops, sometimes it leaves lots of small fragments of rubber, and sometimes it leaves just a couple of larger pieces. What's going on?

When a balloon pops, sometimes it leaves lots of small fragments of rubber, and sometimes it leaves just a couple of larger pieces. What's going on?

Hard, soft, smelly or blue - there's a cheese for every occasion. But is it time to rethink our relationship with this delicious dairy product?

Hard, soft, smelly or blue - there's a cheese for every occasion. But is it time to rethink our relationship with this delicious dairy product?

Easter Sunday can fall in March or April, but the date is definitely not random.

Easter Sunday can fall in March or April, but the date is definitely not random.

Clothing is made of threads, which are made of smaller-still fibres. And that's where the dirt hides.

Clothing is made of threads, which are made of smaller-still fibres. And that's where the dirt hides.

Until recently, scientists couldn't work out how a washing machine actually lifted the dirt out of clothes.

Until recently, scientists couldn't work out how a washing machine actually lifted the dirt out of clothes.

Tobacco has done bad things for public health — but what about e-cigarettes?

Tobacco has done bad things for public health — but what about e-cigarettes?

Planets going rogue and abandoning their star to wander the galactic hood could actually be pretty common.

Planets going rogue and abandoning their star to wander the galactic hood could actually be pretty common.

Rogue planets drift freely through our galaxy, rather than orbiting around a star — and researchers estimate there could be billions in the Milky Way alone.

Rogue planets drift freely through our galaxy, rather than orbiting around a star — and researchers estimate there could be billions in the Milky Way alone.

Barcodes look deceptively simple, but it took 25 years - and two episodes of Great Moments in Science! - to get from that lightbulb moment on a beach to the first barcode and scanner at a checkout.

Barcodes look deceptively simple, but it took 25 years - and two episodes of Great Moments in Science! - to get from that lightbulb moment on a beach to the first barcode and scanner at a checkout.

The story of the barcode has everything - from gangsters to newborns and a whole lot of sand.

The story of the barcode has everything - from gangsters to newborns and a whole lot of sand.

If that image is creeping you out, you could have trypophobia.

If that image is creeping you out, you could have trypophobia.

When you pick up a seashell and hold it to your ear, why can you hear the sound of the ocean?

When you pick up a seashell and hold it to your ear, why can you hear the sound of the ocean?

Why do some people get headaches from eating ice-cream or drinking something very cold

Why do some people get headaches from eating ice-cream or drinking something very cold

We're all just one small rock away from extinction.

We're all just one small rock away from extinction.

Everybody needs good planetary neighbours. But who is our closest?

Everybody needs good planetary neighbours. But who is our closest?

Want to look good? Put your left face forward.

Want to look good? Put your left face forward.

Is a mobile phone getting in the way of your relationship?

Is a mobile phone getting in the way of your relationship?

Are you aware of all the crafty tricks fast food retailers use to keep you coming back for more?

Are you aware of all the crafty tricks fast food retailers use to keep you coming back for more?

Would using a larger fork lead to you eating more food, less food, or just the same amount?

Would using a larger fork lead to you eating more food, less food, or just the same amount?

A hiccup cure that really works — if you're brave enough.

A hiccup cure that really works — if you're brave enough.

Why exactly do we hiccup? Is there a cure!?

Why exactly do we hiccup? Is there a cure!?

How can relativity and quantum mechanics create mass in a tiny particle?

How can relativity and quantum mechanics create mass in a tiny particle?

The Universe is made of atoms — but what are atoms made of?

The Universe is made of atoms — but what are atoms made of?

Have we finally figured out how wombats make cube-shaped poo!?

Have we finally figured out how wombats make cube-shaped poo!?

The answer to this question is a little surprising, not least because it involves wee.

The answer to this question is a little surprising, not least because it involves wee.

Astronomers have seen stars and superhot gas flying in orbits that bring them very close to the supermassive black hole in the middle of our galaxy — and this has taught us a huge amount about the nature of black holes.

Astronomers have seen stars and superhot gas flying in orbits that bring them very close to the supermassive black hole in the middle of our galaxy — and this has taught us a huge amount about the nature of black holes.

Black holes have no size, but have a huge mass — and there's an enormous one right in the middle of our galaxy.

Black holes have no size, but have a huge mass — and there's an enormous one right in the middle of our galaxy.

Are you accidentally sharing your precise location, whenever you upload a photo?

Are you accidentally sharing your precise location, whenever you upload a photo?

Reckon you could measure the circumference of the Earth using just a stick and some basic geometry?

Reckon you could measure the circumference of the Earth using just a stick and some basic geometry?

You've probably heard cigarettes are bad for you — but did you know tobacco contains radioactive material?

You've probably heard cigarettes are bad for you — but did you know tobacco contains radioactive material?

It's said that the 'alkaline diet' can help you lose weight, and fight off cancer — but it looks like these claims don't stand up.

It's said that the 'alkaline diet' can help you lose weight, and fight off cancer — but it looks like these claims don't stand up.

After hearing about the Parker Solar Probe's mission to the Sun, now Dr Karl is taking a closer look at how it'll survive this fiery journey.

After hearing about the Parker Solar Probe's mission to the Sun, now Dr Karl is taking a closer look at how it'll survive this fiery journey.

There's still a lot we don't know about the burning ball of gas that sustains life on Earth — but the Parker Solar Probe could help.

There's still a lot we don't know about the burning ball of gas that sustains life on Earth — but the Parker Solar Probe could help.

For some snapping spaghetti is sacrilege — but for others it’s science.

For some snapping spaghetti is sacrilege — but for others it’s science.

From spaghetti strands to trees to nanotubes — we need to know about the physics of rod-like structures.

From spaghetti strands to trees to nanotubes — we need to know about the physics of rod-like structures.

Many of us have microphones in our homes, attached to smart phones and personal assistant devices.

Many of us have microphones in our homes, attached to smart phones and personal assistant devices.

Our bodies are a marvel of sophisticated engineering — almost without exception.

Our bodies are a marvel of sophisticated engineering — almost without exception.

DNA can help us work out family trees, catch bad guys ... and now as a tool in emergency medicine.

DNA can help us work out family trees, catch bad guys ... and now as a tool in emergency medicine.

Hint: the loneliest ATM is in a very, very cold place.

Hint: the loneliest ATM is in a very, very cold place.

Plunking yourself into a bath fairly full with water makes the water level rise — and overflow. What about ships and the ocean?

Plunking yourself into a bath fairly full with water makes the water level rise — and overflow. What about ships and the ocean?

The poor old goldfish has be slandered for far too long.

The poor old goldfish has be slandered for far too long.

Having more vitamins will make you healthier... right?

Having more vitamins will make you healthier... right?

Humans waste a huge amount of food every year.

Humans waste a huge amount of food every year.

Fact or fiction: Daddy-long-legs are the most poisonous spiders in the world?

Fact or fiction: Daddy-long-legs are the most poisonous spiders in the world?

Could a villain or hero knock out a room full of enemies with a so-called 'anaesthetic bomb'?

Could a villain or hero knock out a room full of enemies with a so-called 'anaesthetic bomb'?

Which would win*: humans or volcanoes? (*In a fight over carbon emissions)

Which would win*: humans or volcanoes? (*In a fight over carbon emissions)

Yup, there are dunes on Pluto — and in other parts of our Solar System.

Yup, there are dunes on Pluto — and in other parts of our Solar System.

Is it worth paying more for A2 milk? What's the evidence that it might be better for you?

Is it worth paying more for A2 milk? What's the evidence that it might be better for you?

Is "cockroach milk" the next "superfood"? Do cockroaches even make milk!?

Is "cockroach milk" the next "superfood"? Do cockroaches even make milk!?

Can an astronaut really see the Great Wall of China from space?

Can an astronaut really see the Great Wall of China from space?

130 years ago one woman went on the first road trip and made history. Is it time for another change in transportation?

130 years ago one woman went on the first road trip and made history. Is it time for another change in transportation?

Which do you think packs more punch — gunpowder or a sandwich?

Which do you think packs more punch — gunpowder or a sandwich?

Whales are the giants of the marine realm, and we've only recently discovered why they're so huge.

Whales are the giants of the marine realm, and we've only recently discovered why they're so huge.

How do trees face an incoming threat if they can't move, see, or hear?

How do trees face an incoming threat if they can't move, see, or hear?

They may not be able to walk, but trees do talk — at least to each other.

They may not be able to walk, but trees do talk — at least to each other.

Trees are solid and dense. However, they're made from air. Wait, what?

Trees are solid and dense. However, they're made from air. Wait, what?

Sulphur dioxide pollution from coal-fired power stations can have bad health effects — but who picks up the bill, and could power stations be doing more?

Sulphur dioxide pollution from coal-fired power stations can have bad health effects — but who picks up the bill, and could power stations be doing more?

Imagine waking up one day and speaking with a different accent — with no control over it! Thanks to a very rare syndrome, this can actually happen.

Imagine waking up one day and speaking with a different accent — with no control over it! Thanks to a very rare syndrome, this can actually happen.

Hummingbirds have a suite of incredible and unique features. However, one of their most important traits can lead to an early death.

Hummingbirds have a suite of incredible and unique features. However, one of their most important traits can lead to an early death.

For thousands of years, Australian Aboriginal people have accurately passed down information from one generation to the next using oral traditions.

For thousands of years, Australian Aboriginal people have accurately passed down information from one generation to the next using oral traditions.

Are you doing everything you can to stop thieves from stealing your identity and 'porting' your phone number?

Are you doing everything you can to stop thieves from stealing your identity and 'porting' your phone number?

There's currently a battle against the bulge — but is fighting fat really the healthiest path?

You may have heard of the Doomsday Vault — but scientists have gone even further to save the world's most important seed stocks.

Birds have been known to use all sorts of tools — but surely they wouldn't be using fire?

About 95% of the mass in the universe seems to be missing — what's going on!?

If you want to transport data quickly, could a truck be the best option?

Is there any evidence that grunting in a tennis match will improve your game?

Is it possible for a planet to be hotter than a star?