Dr Karl Podcast: Recent Episodes
triple j
Join Dr Karl Kruszelnicki, Lucy Smith and their scientific guests, with a bunch of curious triple j listeners for a weekly injection of science, myth-bashing and answers!
Where are we at with time travel? How come male seahorses give birth? Is it quicker to go up the stairs two steps at a time?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Can you burn more calories if you sing while exercising? What happens when your ears pop? How beneficial is pre-workout?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Will another species evolve from humans? Is Jupiter a solid or a gas? If chickens eat redback spiders, do their eggs become poisonous?
Dr Karl answers these questions and more, with guest science writer Zoe Kean and guest host Ash McGregor!
Do we have a new planet in our solar system? How does asparagopsis decrease methane gas from live stock? Can plants hear certain frequencies?
Dr Karl, Tiahni Adamson and Peter Tuthill answers these questions and more, on triple j Mornings with host Lucy Smith.
Why are bubbles round? Is my vacuum cleaner haunted? Why do we facepalm?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How do you measure the size of a galaxy? Will AI answer all the paradoxes in the world? How many times could you wrap your intestines around the globe?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How are bulls so toned if they only eat grass? How do astronauts navigate in space? Can you fart and sneeze at the same time?
Dr Karl answers these questions and more, on triple j Mornings with guest host Ash McGregor.
How come reptiles can bask in the sun and not get sunburnt? Why does pasta taste better as leftovers? What's the best way to clean grease?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
What does a mirror see when it looks in a mirror? How old can Sharks be? Are Sea levels equal?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How does First Nations Astronomy differ? How do Wombats clean their pouch? How can we trick out memory?
Dr Karl, Corey Tutt and Krystal De Napoli answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do some people feel the cold more than others? What state is electricity? Where does all the sweat, bevvies and yucky stuff go after a music festival?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do the deceased still get goosebumps? Can you smell sickness? And you'll meet, the Rainbow Chasers.
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How much of the Ocean is undiscovered? Can our body become immune to Cold & Flu tablets? What on earth is Anti-matter?!
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How much of the Ocean is undiscovered? Can our body become immune to Cold & Flu tablets? What on earth is Anti-matter?!
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How do earthquakes work in Australia? How do testosterone levels affect our body? Why do we need to poo after coffee?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do we close our eyes when we kiss? Where’s the best heating position in the microwave? How does alcohol breath testing work?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do we crave something sweet after dinner? Can supplements really affect our metabolism speed? Does cooking food affect the use by date?Dr Karl and special guest, Clare Collins, answers these questions and more, on triple j Mornings with host Lucy Smith.
Can our hearts sync to the music we're listening to? What's the speed of our nervous system? Can helicopters fly in space?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Do all living things on earth sleep? Which alcohol is the worst for you? Does time ever skip a beat?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why does you voice get deeper when you're sick? Can a solar flare scorch the Earth? How did Axolotls evolve?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Do fly's experience time quicker? Why can some people nap and others can't? How do Antibiotics work?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How Does Grass Spread? Why Do We Get Snotty In Winter? Should We Worm Ourselves Often?Bianca Nogrady answers these questions and more, on triple j Mornings with host Lucy Smith.
What would Dinosaurs taste like? Do dogs recognise their own breed? Why do kids get more nosebleeds than adults?Science writer Zoe Kean & Naomi Koh Belic answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do trees have large dead branches? Do sharks have bones? When do single octopi die? Science writer Zoe Kean answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do Shells have tiny holes? How do Clown Fish avoid being stung? Is Algae the future?Bianca Nogrady and David Wachenfeld answers these questions and more, on triple j Mornings with host Lucy Smith.
Are wind powered cars possible? Can you get sick from rapid changes in temperature? Can Astronauts be tickled in space?Bianca Nogrady answers these questions and more, on triple j Mornings with host Lucy Smith.Producer: Lu Hill
How does our body use energy? Why does food change colour when cooked? Why deos Beer taste stronger when its warm?Dr Karl & Professor Alice Motion answers these questions and more, on triple j Mornings with host Lucy Smith.
Do we age the same in outer space? Can some animals have Gay sex? Is the fungus from 'The Last of Us' real?Dr Karl & Dr Naomi Koh Belic answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do Cicadas chirp? Were there in-between stages in human evolution from Ape to Human? Could we survive by eating our own skin?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why does Jupiter have so many moons? Why are there different layers of clouds? What is heat haze?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How do we measure time? What should come first, sunscreen or insect repellent? Where do Blue Bottles come from?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
How does Bluetooth work? Will human's evolve to lose all of our hair? Is the hole in the Ozone Layer repaired?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Can temperature affect food allergies? Could our shoes be harming the environment? What's the song that makes Dr Karl cry?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.Producer: Joe Khan
Can smells stick in your nose forever? Do clouds actually "burn away"? Do monkeys also have genetic disorders?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.Producer: Nick Gerber
How heavy are our farts? Who was the first Human alive? Are Florence + The Machine song's scientifically factual?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Can sound waves hurt you? Which generation will be the last one to die? Why is the reproductive window shorter for women then men?Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why do we call it the Milky Way? Does dark matter actually exist? What do astrophysicists think of astrology?
Dr Karl & astrophysicist Professor Geraint Lewis answer these questions and more, on triple j Mornings with host Lucy Smith.
What do fecal transplants do? How long should you use a nasal spray? Why isn't there a longer lasting sunscreen?
Dr Karl answers these questions and more, on triple j Mornings with Tanya Bunter.
Does Ice melt quicker in fizzy drinks? What happens to the air inside us after surgery? Should we clean our teeth with warm water?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Does Ice melt quicker in fizzy drinks? What happens to the air inside us after surgery? Should we clean our teeth with warm water?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Are non-stick pans toxic? Will Nuclear powered cars be possible in future? Can tree's evolve?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Are non-stick pans toxic? Will Nuclear powered cars be possible in future? Can tree's evolve?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Is snoozing bad for you? How does heat act in other elements? When can we download our brains?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Is snoozing bad for you? How does heat act in other elements? When can we download our brains?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
How do foods affect out food? Do green supplements have the same effect as eating Veggies? How many times a day should we Poo?
Dietician, Clare Collins, and Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Producer: Lu Hill
How do foods affect out food? Do green supplements have the same effect as eating Veggies? How many times a day should we Poo?
Dietician, Clare Collins, and Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Producer: Lu Hill
Could we live on Mars in the next 100 years? Do Space Rovers enjoy music? How quickly do scientists receive data from Mars?
NASA Scientist, Adrian Brown, and Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Could we live on Mars in the next 100 years? Do Space Rovers enjoy music? How quickly do scientists receive data from Mars?
NASA Scientist, Adrian Brown, and Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Why does warm water sometime look opaque? How is the Earth so warm if Space is so cold? Why do some dog breeds have sinus issues?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Why does warm water sometime look opaque? How is the Earth so warm if Space is so cold? Why do some dog breeds have sinus issues?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
What is Coral Bleaching? How do Jellyfish move? Is La Nina affecting Coral Reefs?
Dr David Wachenfeld, Chief Scientist of the Great Barrier Reef Marine Park Authority, and Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
What is Coral Bleaching? How do Jellyfish move? Is La Nina affecting Coral Reefs?
Dr David Wachenfeld, Chief Scientist of the Great Barrier Reef Marine Park Authority, and Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Why does time travel faster when you sleep? Why do lights and colours look different under water? Why do we get Diarrhea?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Does vitamins dissolve slower in cold water? Why does the Sun burn if there is no oxygen in space? Why do some people get hiccups after running?
Dr Karl answers these questions and more, on triple j Mornings with Lachie Pringle.
Why don't bids get electrocuted? Can we nuke a comet? Why don't babies grow nose hair?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
What can we do to reduce Climate Change? Is solar panels adding to the heat of the earth? Why don't Rainbows have colours like black and brown?
How was the earth made? Does time pass differently on other planets? Why does smell just before rain starts?
How much pollution does an aeroplane make? Why is it so addictive to pick a scab? What would happen if the world lost oxygen for five minuets?
Is timber making the world heavier? How do you navigate in space? And, why does your wee smell after eating asparagus?
Can war and violence have a lasting impact on our DNA? Would we die if we got shrunk to the size of an ant? How does wind form so quickly?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why don't we get goosebumps on our face? If we stopped CO2 emissions right now, would we reverse climate change? Why do countries have different power sockets?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Why are females getting long COVID more than males? Why do we cry? How did humans become lactose intolerant?
Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith.
Can you drive through the end of a rainbow? Is it true that it only takes seven seconds to know you're attracted to someone? Why does clapping sound louder with wet hands?
Dr Karl answers these questions and more. Hosted by Lachie Pringle on triple j Mornings.
How do baby animals (and humans) instinctively know how to suckle when they're born? What purpose do mosquitos have in the ecosystem? How long does a species have to be isolated for it to be considered a 'new' species?
Dr Karl is joined by founder of Deadly Science and proud Gamilaaray man, Corey Tutt to answer these questions and more. Hosted by Lucy Smith on triple j Mornings.
Should you keep your tent flaps open? What happens to helium balloons when you let them go? Why does bottled water have a use by date?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Can our eyes change colour? What would happen if a planet disappeared from our solar system? Why don't we all have the same sense of taste?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
How do dogs experience time? Will the trip to Mars be dangerous? Does Dr Karl believe in Aliens?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Do ceiling fans work in winter mode? Are tastebuds on the wrong side of the tongue? Can we call blood a solid?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Would a body decompose in space? Do noise cancelling headphones protect our ears? When will we create a super human?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Why are thorns on roses less sharp when they are dead? Is it true that oil on Earth is being slowly, but infinitely being replenished? Do painkillers really know how to target pain?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Why do red heads get sunburnt so easily? What would happen if humans never developed muscle memory? Does cold weather make you pee more often?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
What makes red dirt red? Why do our sugar levels affect our moods? What's the difference between a conspiracy theorist and a science denialist?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Are there health benefits from eating raw meat? Is spontaneous human combustion a real thing? If a mosquito bites me while I'm drunk, does the mosquito get drunk too?
Dr Karl answers these questions and more, on triple j mornings with Lachie Pringle.
Can lightning make grass greener? What's the closest call we've ever had with a meteorite? Will Artificial Intelligence ever be sentient?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
How can you tell the difference between antibodies and a virus? Would a compass work on Mars? Why are some mosquitos silent and others loud?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
How can you tell the difference between antibodies and a virus? Would a compass work on Mars? Why are some mosquitos silent and others loud?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Why do we get bags under our eyes when we’re tired? Why do my fingernails grow faster when I’ve been drinking? Why do I always sneeze five times in a row – never four, never six?
Dr Karl answers these questions and more, on triple j mornings with Tyrone Pynor.
Why do we get bags under our eyes when we’re tired? Why do my fingernails grow faster when I’ve been drinking? Why do I always sneeze five times in a row – never four, never six?
Dr Karl answers these questions and more, on triple j mornings with Tyrone Pynor.
Where do double yolkers come from? Why is it so hard to shake the common cold? Why does tiredness effect our perception of time and speed?
Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.
Where do double yolkers come from? Why is it so hard to shake the common cold? Why does tiredness effect our perception of time and speed?
Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.
Why can't we just make ozone in a lab to replenish what has been lost due to climate change? Is it okay to microwave food twice? What's the best life advice Dr Karl has been given?
Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.
Today Dr Lucy and Dr Karl are joined by special guest astrophysicist Professor Geraint Lewis to answer all your questions from around the cosmos.
Can you get moonburnt? Could we ever move at the speed of light? How did the big bang happen? What's on the other side of the universe?
Dr Karl and Professor Geraint Lewis answer these questions and more on triple j Mornings with Lucy Smith.
It's the most triggering question for your local finance bro - why can't we just print more money? How does our brain know when to kick in and smell things? And why doesn't salt water freeze?
Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.
Are some mushrooms infinite? Why does chopping onions make us cry? What would happen if you ate a venomous spider?
Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.
Is there a difference between a raised heart rate from an energy drink compared to excercise? If we didn't have high tides or low tides, what effect would that have on Earth? Why can some people wiggle their ears without touching them?
Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.
Skim milk vs full cream? Is a Keto diet sustainable for your body? Can being pregnant eliminate a gluten intolerance?
Dr Karl & Lucy Smith are joined by Professor of nutrition and dietetics, Clare Collins to answers these questions and more, on triple j Mornings.
How does glue work? Does the ocean evaporate? Is there an everlasting supply of lava?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
How do clouds work? Will carrots turn you orange? Do our hair and nails keep growing after we die?
Dr Karl answers these questions and more, on triple j Mornings.
How do clouds work? Will carrots turn you orange? Do our hair and nails keep growing after we die?
Dr Karl answers these questions and more, on triple j Mornings.
Why do ice cubes taste different to water? Do men have worse smelling urine than women? Is showering too often bad for your skin?
Dr Karl answers these questions and more, on triple j Mornings.
What can you do to prevent sleep paralysis? When a sneeze disappears, where does it go? Why do carnivorous plants exist?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
When is the best time to freeze bread? How do we measure lightyears? Are sugar-free energy drinks worse for you than their sugary counterparts?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Why does the gym make me gassy? Do bugs have blood types? Does sound travel further at the beach?
Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Is it possible to be too healthy? What happens if we're busting to wee and hold it? Do men get sleepier than women after sex?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
How do they predict sunrise and sunset so accurately? Why do people often crave sweet things after dinner? Does hot water actually freeze quicker than cold?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Do people with bigger noses have a better sense of smell? Why do we like hot showers so much? Do you need to pay back a sleep debt if you stay up late and wake up early?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Why do we crave certain foods even if it's been years since we last ate them? Why do giraffe's have blue tongues? We know black holes exist, but do are there also white holes?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Why do rainbows form in perfect arcs across the sky? Why does drinking water after eating a mint make the water feel so much colder in your mouth? Is handwriting hereditary?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Why do we sometimes cry when we're happy? Can trees live forever? How do reflections actually work?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
How are seedless fruits grown? Why are peanuts the most common allergen? Can painkillers target specific parts of the body?
Dr Karl answers your science questions on triple j mornings with Lucy Smith.
How can you keep coffee hotter for longer? What's the purpose of fingernails? Can birds get struck by lighting?
Dr Karl answers your science questions on triple j mornings with Lucy Smith.
Is it better for the environment to burp or fart? Why am I hungrier when I eat more regularly? Can you overcome a food gag reflex?
Dr Karl & Professor Clare Collins answer your questions on nutrition, dietetics and science on triple j mornings with Lucy Smith.
Do magpies talk in their sleep? Can the moon get earthquakes? Is technology stunting our evolution?
Dr Karl answers your science questions on triple j mornings with Lucy Smith.
What do spiders think about when they're sitting in their web awaiting their prey? How can you help your dog if it has separation anxiety? You have a cat that won't stop biting you. Why? And what can you do to stop it?
This week we hone in on all your questions about pets and animals. Veterinary specialist and animal behaviour expert Dr Kersti Seksel joins Dr Karl on triple j mornings with Lucy Smith.
Why is wombat poo shaped like a cube? Does breakfast actually kickstart your metabolism? How much does your DNA determine your intelligence?
Dr Karl answers your science questions on triple j mornings with Lucy Smith.
Is there any proof that Ivermectin combats COVID-19? Will life ever be the way it was before the pandemic? If the whole world was sprayed with disinfectant, would that kill off COVID-19?
Host of Coronacast, Tegan Taylor joins Dr Karl to answer your COVID-19 questions on top of your regular science questions on triple j mornings with Lucy Smith.
Is vaping less damaging than cigarettes? When you hurt yourself, does 'rubbing it better' actually do anything to help? What's better for the environment? Being cremated or buried?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
What would happen if we woke up one morning and the earth was spinning the other way? Can human beings improve their sense of smell? Do ear candles actually work?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Can we train our brains to forget things? Why do some people float in water and others sink? Do you jump higher on a wet trampoline?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Why do we shudder after we yawn? Why do some humans feel compelled to eat their boogers? Why does hot water clean things better than cold water?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
Can you catch a yawn from a dog? Is Hydrogen charged water just a fad? Do animals get dad bods once they find a mate?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith.
How did scientists create COVID-19 vaccines so quickly? Why can't we control the beat of our hearts like we can control the breath in our lungs? How do the rings of a tree tell us its age?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith
Why do bones stop growing? Why does having to pee take over all your thoughts? What would happen if you microwaved a human being?
Dr Karl answers these questions and more, on triple j mornings with guest host Tyrone Pynor.
How realistic are alternate realities? Why does sleeping with a quilt on make us have bad dreams? Could we survive on a desert island with only corn to eat?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why hasn't any other being evolved to have human-level intelligence and consciousness? Why do your teeth move during pregnancy? Is climate change effecting the temperature of the core of earth?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Do birds recognise humans? What is brain freeze? How do we find dinosaur bones?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Dr Karl takes on your movie science questions on triple j mornings, with host Lucy Smith and science communicator Petr Lebedev.
Spoiler alert for the following films; Tenet, Interstellar, Inception, Pulp Fiction, Star Wars, Jurassic Park, Donnie Darko, The Wolverine, & the concept of zombies.
Do flavours "get to know each other" when cooking? Why do tattoos survive cell regeneration? What's the science behind grief?
Dr Karl answers these questions and more, on triple j mornings with host Joe Khan.
When do babies get nightmares? What would the world be like without The Industrial Revolution? Why is the last sip of coffee always cold?
Dr Karl answers these questions and more, on triple j mornings with host Joe Khan.
Why does hair retain the smell of smoke? How does intermittent fasting work? Why do we speed up when overtaking?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Do chickens have feelings? Can you make custard from platypus milk? Where did Indigenous people get their calcium before cows?
Dr Karl answers these questions and more, on triple j mornings with Corey Tutt from Deadly Science, Karlie Noon from Sydney Observatory and host Lucy Smith.
Are "dog years" a scientific fact? Is it more efficient to walk up stairs two at a time? Why do my hands tingle after using my sander?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why do hazel eyes change colour? Does hot water freeze faster than cold water? Why am I allergic to certain cats?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
What makes hair go curly? How can you stop wrinkles? Do shorter people use more energy then tall people?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why does coffee effect people differently? Can you train your pain thresholds? Why do my legs twitch when I sleep?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Is any multi-vitamin juice good for you? Does drinking milk gives you acne? Does eating cheese give some people nightmares?
Dr Karl answers these questions and more, on triple j mornings with Clare Collins, Laureate Professor in Nutrition & Dietetics at the University of Newcastle, and host Tyrone Pynor.
Are dogs mouths cleaner than ours? What are we looking at when we look at a planet? And what is actually going on at 'Magnetic Hill'?
Dr Karl answers these questions and more, on triple j mornings with host Abby Butler.
What is a stitch? Why do we grow random long hairs? Can we eat boogers?
Dr Karl answers these questions and more, on triple j mornings with host Abby Butler.
How long could we live without the sun? Why do my veins swell in the heat? When will Mars settlers be called Martians?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why don't plastic containers dry properly? Do ball sacks have tastebuds? Why did my glass door explode?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Will Australia be underwater in the future? Could you cook a chicken with body heat? Why are electric kettles so loud?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
How does the brain deal with anxiety? Do ducks like the rain? Could you scream in space?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Are there any new deserts? Why does being sick make me feel better? Does Autumn change the worlds oxygen levels?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Do crystals absorb energy? Why does some poop float? Can a broken heart hurt you physically?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why does anxiety make my hands tingle? Why doesn't corn digest properly? Could we ever shift the axis of the earth?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
What's the frame rate of our eyes? Does gut bacteria cause depression? What would happen if mosquitos became extinct?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Does a spoon keep champagne bubbly? Why do I cough when using an earbud? Why do animals sense disasters?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why don't humans hibernate? What's the best way to hang washing? Why am I attracted to dark haired people?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Could one side of my mouth be dominant? What makes chilis so hot? Why do little bubbles form on the road after rain?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Could nightmares be genetic? Why does the weather affect my asthma? Can I outrun a giraffe?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Is the Earth flat?
Why do penguins wobble when they have knees?
What is the biological function of the female orgasm?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Do magnets work in outer space?
What would happen if you opened a jar from space on Earth?
Do germs have the ability to move on their own?
Dr Karl is joined by Professor Geraint Lewis from The University of Sydney this week!
answering all these questions and more, on triple j mornings with Lucy Smith.
How much force does it take to bite off a finger?
Why is salt water so buoyant?
Why do I get pleasure from cracking knuckles?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Do dogs have personalities?
Can you compost vegan poop?
Why do lizard tails wiggle after falling off?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why do I always hiccup and burp at the same time?
Do birds recognise their own reflection?
Why does my dog steal my socks?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
What is Mars's role in Indigenous astronomy? Why are snail trails shiny? How do extinct animals come back?
Dr Karl answers these questions and more, on triple j mornings with Corey Tutt from Deadly Science, Karlie Noon from Sydney Observatory and host Lucy Smith.
Why can I predict the rain? When's everything going back to normal? How did we draw maps before satellites?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Can i change my tastebuds? Can i overcome my food intolerance? Does eating affect my mood?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Professor Clare Collins from the University of Newcastle.
How does weather affect our mood?
Can a chicken produce a fertile egg without a rooster?
How do some people grow out of their allergies?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
Why does seeing babies make me want to have babies?
Do you start looking like your partner?
Can I fall in love via smell?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith.
A special COVID edition of Science with Dr Karl this week.
We answer all your questions with the host of the ABC's Coronacast Tegan Taylor & Professor Marc Pellegrini - joint head of infectious diseases and immune defence at the Walter and Eliza Hall Institute in Melbourne.
Why do we want to squeeze cute things?
Do birds feel G-Force when changing direction?
Will my semen trigger my partners allergies?
Dr Karl answers these questions and more, on triple j mornings with host Lucy Smith
Should you soap your genitals?
Do ducklings ever change their order?
Can muscle memory be hereditary?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Which came first; the chicken or the egg?
Why does cutting onions make me cry?
Does my pee always come out in the same direction?
Dr Karl answers these questions and more on triple j Mornings, with host Bryce Mills.
Why is the sky Blue?
Why do boiled eggs explode in the microwave?
Why are some planets called 'Gas Giants'?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
How do we create blood?
Do animals have a sense of humour?
Do birds like flying?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Can you catch a ride on a comet?
Why does coffee work some mornings and not others?
How do trees produce Oxygen?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
What's the difference between a virus and bacteria?
Do ants feel hot water?
What would happen if everyone started eating a plant based diet?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
When you lose weight, where does it go?
Why does the shower steam when the water isn't boiling?
Are bees loyal to one hive?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Former NASA astronaut & deep sea explorer Kathryn Sullivan is our special guest today, answering all your space/ocean questions with Dr Karl.
Has the ocean always been salty?
Can we turn lead to gold?
Is there any science behind star signs?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Where does dust come from ?
Have we measured the speed of thought?
Is there science behind the 5 second rule ?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Is choccy milk the best post-workout beverage?
Why aren't we disgusted by our own body odour?
If someone is blind from birth, can they dream?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Could you last on a deserted island, Tom Hanks style?
Are bananas actually healthy?
Is my vegetarian diet affecting my PCOS?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Professor Clare Collins from the University of Newcastle
What happens if I fall into the deepest hole on earth? Could my dog get COVID-19? How does Dr Karl's brain work?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Would Superman outrun COVID-19? Why do I pee more when I'm camping? Do oranges actually help at half-time?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
What happens when we run out of oil? How long does the human brain last? How do anaesthetics knock us out?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Why do dead people still get goosebumps? What happens if two black holes collide? Why do you feel worse after a long nap?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Do you hear the voice in your head or do you think you think it? why does eating chilli make you feel good? does the sun rotate?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Has the weather been impacted by the Coronavirus? Can you smell when someone is on their period? Was COVID-19 created in a lab?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Science reporter Olivia Willis from ABC News.
Can dogs be left or right handed? Where does the wax go when you burn a candle? How many coffees are too many coffees? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Has evolution made our farts louder? Do rabbits see colour? How do I survive a plane crash? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.
Can Wearing a hat make you go bald? Can you physically feel a vibe or someone’s energy? Is it possible to crush someone’s head Game of Thrones-style?
Dr Karl answers these questions and more on triple j Mornings, with host Karla Ranby, filling in for Lucy Smith.
When can we go to music festivals again? Can you store a fart in a jar? Can exercising make you orgasm?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Dr Norman Swan from the ABC's Coronacast podcast,
Will the bushfires around Chernobyl release nuclear smoke into the air? What is Coronavirus doing for climate change? Why are my farts warm?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Science reporter Olivia Willis from ABC News.
How long does an asymptomatic person stay asymptomatic? Should we be worried about the fumes from hand sanitizer? How long can I eat my hot chicken leftovers for? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Science reporter Olivia Willis from ABC News.
Can you get COVID-19 from patting dogs? When should we be using face masks in public? Can Coronavirus be transmitted through animal meat?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Olivia Willis from ABC News.
Can you be immune to COVID-19? Can it live on receipt paper? How do you test a vaccine?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Olivia Willis from ABC News.
Can you catch the Corona virus from a fart? What about a petrol pump? What about from surfing?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Tegan Taylor from the ABC's Coronacast.
Why does drinking red cordial cure my hiccups? Why do I eat more in the winter? Can I touch my face with gloves on?
Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith
Are we still seeing light from The Big Bang? Does space end? Is a earthquake on Mars called a Mars-quake?
Dr Karl answers this question and more on triple j Mornings, with Professor Don Kurtz and host Lucy Smith.
What's the science behind all this toilet paper buying bullshit? Dr Karl answers this question and more on triple j Mornings, with host Lucy Smith.
Why don't birds have fat legs? Why are LED lights brighter then ever? Was the moon landing real? Dr Karl answers these questions and more on triple j Mornings with host Lucy Smith.
Is protein powder a waste of money? Do men poo more then women? Why does my fried keep getting brain-freeze? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith & special guest dietician Professor Clare Collins!
How does a dog recognise the opposite sex if they can't smell their butt? Is it healthy to eat your own boogers? Plus, is it possible to inter-breed species?
In this episode Dr Karl makes a brand new, ground breaking, mind blowing discovery that has changed his life.
How scientists know what the temperature was in the years before records began? What role does cattle have on the impact of climate change? And how have the current bushfires affected carbon levels?
Why do we feel like vomiting after rigorous exercise? Does distance or speed burn more calories? Plus, the movement of air pollution.
Does smoke benefit the soil? Plus, what can we expect to see in the future for fire prevention?
Chernobyl Exclusion Zone, what is dark matter and what would happen if flies don't exist?
How much information can your brain hold? How do genetics work and does the clitoris have multiple purposes?
Why do male mammals have nipples? Do we have a music taste gene? Plus a fruit fly experiment.
Do you get squeamish at the sight of blood? Plus operating on fish and pollution in your lungs.
Why do we float horizontally in water? Why do some adults develop anaphylaxis? Is soda water good for you?
Can you overcome gluten intolerance? Is toasted bread good for you? Should your poo sink or float?
What happens if you microwave a human? Is there anything wetter than water? What are the benefits of floating tanks?
How will the galaxy Andromeda be feeding on our galaxy The Milky Way? Plus climate change, a positive future and sleeping with your eyes open.
Have the planets ever lined up in the solar system? Why can some people whistle in tune, but not sing in tune? Can you water plants using hot water?
Is a Googleplex the biggest single number? Are rising sea levels only caused by ice melting? Why do we get blocked noses?
Why do we have toe nails? Can we dry our clothes by freezing them? Why are sunrises and sunsets different colours?
Why do we need to pee when we get into water? How long would humans last on earth if the sun disappeared? Where do false memories come from?
Why do we get dizzy when we get up really quickly? Why does hot water sound different to cold water when it comes out of the tap? Why do cold and flu symptoms always feel worse in the morning and at night?
Why are storm clouds black? How does the burning of the Amazon effect the world? Why are some people more likely to get static shocks than others?
Why do some people get hungry when around a dead body? Is your brain still active after you die? How long does it take for a body to decompose in a coffin?
Why do fires burn faster uphill rather than down? Can you cook a chicken by slapping it? What are the affects of bushfires on trees?
How do we better our memories? What do people who were born blind dream about? How much material is used to make one screw?
Can cats land on their feet in space? Why are planets round? What would happen to the earth if the sun moved closer?
Why does your dog rub itself in dirt right after you bath it? Do reverse cycle air conditioners have an impact on global warming? Why do you need to pee when it gets cold?
Are we terraforming the earth? Why was the American Flag flapping in Apollo 11 footage and what would happen if you were lost in space?
Do you have a fear of belly buttons? Why does your tummy grumble when you're hungry? If human's didn't interact with each other, would we walk like monkeys?
Does fruit taste sweeter in the fridge? Are seagulls telepathic? Can indoor plants help with our air quality?
What would happen if the whole world farted at once? Why do we hear our own voice differently to how others hear us? Can you scare someone better?
Why does coffee change taste as it cools down? Why do we get goosebumps? Do women's periods really sync up?
Can you change your own genetics? Does cold weather cause you to catch a cold? Why does my head throb when jumping on a trampoline?
Does spraying deodorant in your pits effect your health? Why don't I dream? How can I tell if I'm a loud chewer?
Could you make off milk drinkable by boiling it? Are you heavier after taking a shower? Can computer viruses become real life viruses?
Do bees know they'll die if they sting someone? Why do I feel hungry after eating fruit? What material makes the best reusable coffee cup?
Where does the wind come from? Can we affect other peoples dreams? Why do some people smell like butter when they sweat?
Can we outgrow our allergies? Is it possible to tell if we're sweating underwater? Why does our stomach look much smaller when we wake up in the morning?
Why shouldn't we eat our own poo? Why do bruises change colour? And the lady who literally picked her brain
It's a big black hole celebration! Could one create a new universe? How can we take a photo of one? What would happen to your body if you entered one?
Can different bird species communicate with each other? Why am I so sweaty? Why do animals have an even number of limbs?
Do dogs have their own personalities? Can I reset myself to become a morning person? Can we use volcanoes to get rid of the worlds rubbish?
Can animals be allergic to humans? Why do people always go on holidays near water? Why do I sleep talk?
Why do people have different eye colours? Why don't plastic containers dry properly in the dishwasher? What is glow-in-the dark chicken? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Why do I sweat more on one side? Can smart watches cause cancer? Why is it easier to see when squinting? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Why do certain sounds give you goosebumps? Can drinking cows milk cause lots of health problems? Why does your body twitch as you're falling asleep? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
How do you test sewerage for drugs? Did a hash brownie bring back my sense of smell? Why can't I burp? These science questions get answered this week, by science journo Bianca Nogrady and Uni of Sydney researcher Dr Alice Motion.
Your favourite scientist answers your icy cold questions, live from Casey Research station. With special guests Dr Ben Galton-Fenzi and Casey research station leader Chris MacMillian.
Is brown rice actually better for you than white rice? When you eat ice cream does it leave your body as poo or wee? And how do different foods affect the smelliness of your farts? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Does cement make your nails grow? Are the hiccups hereditary? Why is the sound of a plane flying so loud when you're outside it, but quiet when you're inside it? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Does cement make your nails grow? Are the hiccups hereditary? Why is the sound of a plane flying so loud when you're outside it, but quiet when you're inside it? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
What is traveler's constipation? Why do I have freckles? How do black holes effect dark energy? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Why do I get stitches when I drive a Bobcat? Why do we stick our tongues out when concentrating? Why does black absorb more heat than white. Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Why is the sky blue? Do people age slower in cold climates? Is my water bottle infecting me? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
How do you make the perfect hot chocolate? Does snorting things destroy your sense of smell? What are the particles of atoms made of?
Do you get sicker if you pick your nose? How do you know to breathe? Why doesn't plastic cheese burn?
What causes bags under your eyes? Why does the sound of metal change when it's wet? Does classical music calm children? Dr Karl answers these questions and more, with guest host Karla Ranby on triple j Mornings.
Why do drug addicts like chocolate milk? Does donating blood burn calories? Where did the English language come from?
Comedian, actor and science enthusiast Bill Bailey helps Dr Karl answer these questions and more on triple j Mornings! Why do I get an itchy chin when I have asthma? Should we drive faster or slower when hitting a pothole? Can you develop Stockholm Syndrome for music genres?
Why do you get hungry when you smoke marijuana? Why cant my dog hear my voice over the phone? Why do I burp after I eat an apple.
Have any frozen people been brought back to life? If we eat fish that has eaten plastic, how will that effect us? Why do my eyes keep changing colours?
Special guests Science Journalist Binaca Nogrady and Dr Alice Williamson join Linda Marigliano to answer your science questions.
Why do some farts smell and some don't? What are so many people developing gluten intolerance? Can you ever be 100% healthy with food? In this food and nutrition special, Dr Karl answers these questions and more with special guests dietitian Dr Kyra Sim and USA nutrition expert Yvette d'Entremont.
Do bees know they'll die if they sting you? Why is fire red? Why doesn't our moon rotate? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Is there a set amount of water on planet earth? Why do I get itchy thighs when I exercise? What goes on inside your body when your heart 'beats out of your chest'? Can a loud noise impact the hearing of an unborn child? How long can you go without sex?
Why is the world's population 50% male and 50% female? Is it softer to run on the road or the footpath? How does skin know to grow back?
Is it better to pick up dog poo or let it fertilize? Do we lose our sense of taste as we get older? Why do I get itchy when I sneeze?
Could our universe be a hologram? Can colliding black holes create musical notes? Will our universe collapse in on itself? Dr Karl and Professor Patrick Hayden from Stanford University answers these questions and more.
Can you teach your eyes to roll away from each other? Is it bad to cough on command? How do relaxation pods work? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Are there different species of humans? Is the earth getting heavier? Why can i put my dreams on hold? Dr Karl answers these questions and more, with guest host Karla Ranby on triple j Mornings.
Do cucumbers feel pain? Do mozzies have a purpose in the world? How do you measure a black hole?
Dr Karl is back at it, answering all your science questions on triple j Mornings. Why do noise cancelling headphones cut out on the train? Why don't spiders get stung by wasps? Is eating boogers healthy?
What makes a planet a planet? Why haven't we gone back to the moon? What'll happen to the International space station when we're done with it? Dr Karl is away for the month, so science journalist Bianca Nogrady is stepping in to be your science sherpa on triple j. Joining her today was Professor Lisa Harvey-Smith, astrophysicist with the CSIRO!
Dr Karl is away for the month, so science journalist Bianca Nogrady is stepping in to be your science sherpa on triple j. And joining her today was Professor Clare Collins, Nutritionist at the University of Newcastle.
Dr Karl is away for the month, so science journalist Bianca Nogrady is stepping in to be your science sherpa on triple j. And joining her today was Dr Jess Bloom, astrophysicist from the University of Sydney.
Why do you always see dead cockroaches on their backs? Why is bellybutton fluff always dark blue? And could you get drunk from breast milk if the mother has been drinking?
What's 'visual snow'? Why will a dripping tap wake you up but torrential rain won't? Why do some people wake up grumpy?
How do animals that use echolocation travel in packs without it getting confusing? What's salt and vinegar chip-induced eyelid sweat about? Why do you need to go to the toilet when you get home, but not before?
If you wrapped a wire around the world would you generate electricity? How does my partner make her hands sweat on cue? And if I'm allergic to housecats, would I be allergic to a lion?
Why did salt make my beer explode? Why doesn't your entire body wrinkle when you're in the bath? Why dont dogs poo and pee at the same time?
Why does cheese make you dream funny? Why is my dog's poo growing fungus? Why do I see stars when I sneeze?
What causes a sneezing fit? Would your body dissolve in pineapple juice? Is your sense of smell related to your emotions?
Can maths predict the future? What about lotto numbers? Plus, the question that stumped the nation!
Dr. Karl answers all your science questions, including; is coffee linked to cancer? Is there scientific proof of an afterlife? Why can't we control what we remember?
Dr. Karl answers all your science questions, including; is gravity stronger underground? Is raspberry cordial good for your gut? Which way do toilets flush on the equator?
Dr. Karl answers all your science questions, including; Is fasting good for you? How do bluebottles procreate? Are the magnetic poles changing places?
Dr. Karl answers all your science questions, including; what's the point of hiccups? Should you floss after brushing? Does sound travel in space?
Dr. Karl answers all your science questions, including; can you incubate eggs under your arm? Do all mammals yawn? How does music affect the brain?
Dr. Karl answers all your science questions, including; why is it hard to breathe in humid weather? Why do we twitch while falling asleep? Can caffeine shakes be permanent?
Dr. Karl answers all your science questions, including; do stressful dreams affect sleep quality? Are there really morning and night people? Why do periods synch?
Dr. Karl answers all your science questions, including; what do flies want? How do bullets kill people? Why does dog poo turn white?
Why is the sky blue during sunsets? What's outside the universe? What came before the dinosaurs?
Where does the past go? How do we keep human biases out of Artificial Intelligence? Can quantum computing help us solve p=np?
Why does earwax taste bitter but snot doesn't? Can Wi-Fi be harmful? If we were to replicate the big bang, how would we contain it?
Could you keep moving your head to new bodies and live forever? How are birthmarks formed? Is it possible to bite or eat yourself?
Why are snails and slugs so slow? Why do wombats do square poos? If i drive a Melbourne fly to Brisbane, have i ruined its life?
An insect edition with special guests Dr Bryan Lessard from the CSIRO and Dr Rebecca Johnson from the Australian Museum!
To celebrate Science Week, we recruited total ledge & Aus music lover Dr Karl to give us his hot takes on Unearthed.
What is happening in the brain when someone experiences synaesthesia? What would happen if we had more than one moon? How fast would you need to travel to keep up with the sun?
How much farting would kill someone? Has anyone replied to our space messages? Will my tastebuds disappear if i keep cutting off my tongue ulcers?
What's the deal with morning breath? Why do babies get hiccups when they laugh? How is scent linked to memory?
How do you get music out of a vinyl record? What would happen if you reflected the sun's light back at it? Would ants survive without their colony?
Why don't your teeth grow, like nails or hair? What is the smallest particle and what is it made up of? How does natural instinct work?
It's a Marine Science Special! Professor Emma Johnson joins Dr Karl and Zan Rowe to help answer your ocean-based science questions.
Why do op shops all smell the same? Why can't we use 3D printers to print organs? Is there any benefit to avoiding gluten?
Does forcing a smile really make you happier? Why do certain notes or chords have emotional responses? Is urine good for helping lemon trees grow?
Why does my partner get a runny nose, after eating a hot dinner? Why is urine actually yellow? Could space possibly be a sphere?
Why do people get tired when driving? Is it possible to drive a fast car upside-down in a long, circular tunnel? Are your chances of surviving a car accident better if you are asleep and you're body is limp?
Why do people rock from side-to-side when they sleep? Plus: are humans the only mammal that suffers morning sickness during pregnancy?; and why can cat fur have different colours along the length of each strand of hair?
Why is it considered a good thing to urinate on lemon trees? Plus: can birth marks be hereditary?; and why do yellow sunglasses make daylight appear brighter?
What happens if you swallow chewing gum? Plus: can a woman's tastebuds change during and after pregnancy?; and can drinking milk cause osteoporosis?
Why does crockery seem to randomly explode? Plus: Is it possible to be allergic to only male furry animals?; and a caller reports the results of his and his partner's female ejaculation tests.
As part of triplej's 'sex week', Dr Karl and Zan Rowe take talkback questions ranging from female 'squirting' to male morning glories and having sex during pregnancy.
When using earbud-style headphones, why does the music's pitch seem lower when they're removed? Is there a way to reduce the effects of jet-lag?Why is it when you are extremely tired that trivial things seem very funny?
Why does your head seem to spin when you lie down if drunk? What are the differences between various cookwares and are any types dangerous? What happens to bullets that are fired into the air?
Previous 'Mornings' presenters drop by to share their favourite Dr Karl moments from the last 30 years on triplej. Plus: Karl's favourite organ; his first comments on radio re-enacted; and the five most-common science questions asked by listeners.
In a special triplej listener talkback, Zan Rowe and Dr Karl discuss the link between mental illness and marijuana use with psychiatrist Dr Matthew Large, from the University of New South Wales.
Does cold storage affect how food metabolises and germinates? Plus: why do some people's eyes squeak when they rub them?; and why can some people make their ears 'crack' when they press them?
Do snipers need to take in to account the Coriolis effect when taking a shot? Plus: what happens if you pee on an electric fence?; and can babies breathe underwater?
Why do some mobile phones ring when they are switched off? And why do many women crave chocolate just before their periods?
Why do wasps survive being frozen? If black is a shade of light, then how does a projector recreate it? Why does cold air clear a foggy windscreen better than warm air?
Do microwave ovens block mobile phone reception? Will vinegar sooth sunburn? How can you 'pop' a yawn?
Can copper pipes be made hard again after they have been overheated then cooled? Why do new tyres sometimes leave a blue mark on the ground? Do sports compression shorts work?
What happens when fruit and vegetables cross-pollinate? Why does my hair appear to grow quicker now I shave my head? Does quantum physics imply the existence of a God?
Why don't scars get dirty the same way as the rest of your skin? Do noise-reducing ear plugs damage your ears if you wear them for too long? Can exercising after drinking alcohol help you sober up more quickly?
How do you get green tomatoes to ripen quickly? Can people on a vegan diet receive the same amount of nutrients as meat-eaters? Can static shocks through headphones be dangerous?
Why do some people get itchy legs when they exercise? Plus: what causes some people's cheeks to swell and tingle while eating cheese? And why is bellybutton fluff always blue?
Why do some people see thousands of tiny spots when they look up at the sky or a bright light? What causes a white rainbow? And is there any science to explain ghosts?
What's it like to live in space for 183 days? NASA astronaut Dr Gregory Chamitoff joins Dr Karl to answer all your space questions.
Why do some people work harder at the gym when they listen to a favourite tune? Plus: why does your stomach rumble when you are hungry? And why do your hands tingle after an orgasm?
Why does a bruised apple taste differently to an unbruised one? Plus: is it possible to evaluate the capacity of the brain in gigabytes? And why does caffeine make you feel sick in the stomach?
Why doesn't the skin around nipples get sunburnt? Would global warming interrupt the Atlantic conveyer current and cause an ice age in the northern hemisphere?
Why does it feel unusual when walking on a stationary escalator? Plus: why did the recent Chilean volcano ash cloud travel in the opposite direction to the prevailing winds? And why are oranges orange?