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Dr Karl Podcast
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!
5 days ago
Overnight shifts, spider clouds, spit
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.
Feb 24, 2021
Electric vehicles, body temperature, mowing
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.
Feb 17, 2021
Public toilets, naked flames, tattoo pain
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.
Feb 10, 2021
Birth control, sea urchins, auras
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.
Feb 3, 2021
Fog, weight training, artificial suns
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.
Jan 27, 2021
Rusty sunscreen, anti-depressant yawns, road bubbles
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.
Jan 20, 2021
Rainforests, grey hairs, tastebuds
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.
Dec 16, 2020
Penguins, orgasms, flat earth
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.
Dec 9, 2020
Space magnets, asteroids, coral sex
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.
Dec 2, 2020
Twins, tapeworms, water divining
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.
Nov 25, 2020
Male nipples, climaxing, wrinkly fingers
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.
Nov 18, 2020
Eye floaters, rescue bees, drinking blood
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.
Nov 11, 2020
Science with Dr Karl: 2020 NAIDOC week special
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.
Nov 4, 2020
Moles, superstitions, saliva
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.
Oct 28, 2020
Lactose, acid reflux, plunger coffee
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.
Oct 21, 2020
Vacuums, toothbrushes, funny bones
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.
Oct 14, 2020
Heartbeats, pheromones, brain orgasms
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.
Oct 7, 2020
Hydroxychloroquine, contact tracing, vaccines
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.
Sep 30, 2020
Phantom pain, octopuses, staring
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
Sep 23, 2020
Kookaburras, sign language, trypophobia
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.
Sep 17, 2020
Tenet, eyebrows, biotics
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.
Sep 9, 2020
Pet psychology, bruises, the sky
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.
Sep 2, 2020
Colliding black holes, burritos, birds
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.
Aug 26, 2020
Comets, coffee, covid
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.
Aug 19, 2020
Nosebleeds, yabbies, boiled eggs
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.
Aug 12, 2020
Sunsets, escalators, bees
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.
Aug 5, 2020
A legit astronaut joins Dr Karl to answer your questions!
Former NASA astronaut & deep sea explorer Kathryn Sullivan is our special guest today, answering all your space/ocean questions with Dr Karl.
Jul 29, 2020
Time, alchemy, running
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.
Jul 22, 2020
Spacesuits, dust, 5 second rule
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.
Jul 15, 2020
Cheese dreams, choccy milk, body odour
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.
Jul 8, 2020
Chewing, soy, protein
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
Jul 1, 2020
Period nosebleeds, brains, simulations
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.
Jun 24, 2020
Vaping, Sleep talking, CBD Oil
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.
Jun 17, 2020
Decapitation, shocks, micro-dosing
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.
Jun 10, 2020
Love at first sight, killer rabbits, pig orgasms
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.
Jun 3, 2020
Nail clippings, boobs, spicy food
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.
May 27, 2020
Sleep-talkers, exploded stars, resistance
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.
May 20, 2020
Crocodiles, beards, indoor plants
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.
May 13, 2020
Waterbeds, barking, sticky floors
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.
May 6, 2020
Meteors, sleep twitching, feeling vibes
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.
Apr 29, 2020
Festivals, curves, core-gasms
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,
Apr 22, 2020
Time travel, fart temperature, eating your own hair
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.
Apr 15, 2020
Hand washing, active cases, hot chooks
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.
Apr 8, 2020
Face masks, dreadlocks, thoughts
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.
Apr 1, 2020
Vaccines, receipts, 5G
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.
Mar 25, 2020
Surfing, disinfecting phones, petrol pumps
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.
Mar 18, 2020
Holding in farts, magnets, face masks
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
Mar 11, 2020
Life on Mars, space welds, menstrual moon cycles
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.
Mar 4, 2020
Panic-buying, human extinction, hand washing
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.
Feb 26, 2020
Moon landing, fat birds, brighter LEDs
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.
Feb 19, 2020
Protein powder, brain-freeze, carnivore diets
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!
Feb 12, 2020
Boogers, corn, coffee aroma
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?
Feb 5, 2020
Watery eyes, snake venom, coronavirus
Do your eyes water when you're getting a wax?
Jan 29, 2020
Lunchbox discoveries, Coronavirus, tastebud balls
In this episode Dr Karl makes a brand new, ground breaking, mind blowing discovery that has changed his life.
Jan 22, 2020
Climate change, bushfires, phantom phone vibrations
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?
Jan 15, 2020
calories, catchy songs, sweat
Why do we feel like vomiting after rigorous exercise? Does distance or speed burn more calories? Plus, the movement of air pollution.
Jan 8, 2020
Bush life regeneration, fire prevention, benefits of smoke and soil
Does smoke benefit the soil? Plus, what can we expect to see in the future for fire prevention?
Dec 12, 2019
Decision making, Dogs howling to Rüfüs Du Sol, space explosions
Linda Marigliano and Dr Karl take your questions for one last time together.
Dec 4, 2019
Coconut oil, inhaling smoke, tiredness
Coconut oil, inhaling smoke and why you might feel tired when you're doing nothing?
Nov 27, 2019
Iced coffee, flies, static electricity
Chernobyl Exclusion Zone, what is dark matter and what would happen if flies don't exist?
Nov 21, 2019
Clitoris, mosquitos, genetics
How much information can your brain hold? How do genetics work and does the clitoris have multiple purposes?
Nov 13, 2019
Male mammal nipples, music genes, fruit flies
Why do male mammals have nipples? Do we have a music taste gene? Plus a fruit fly experiment.
Nov 6, 2019
Evil crows, bird funerals, swooping magpies
Ever wondered whether birds are evil? Plus do birds have funerals like humans do?
Oct 30, 2019
Exotic animals, unlocking the human brain and sleeping
Do you get squeamish at the sight of blood? Plus operating on fish and pollution in your lungs.
Oct 23, 2019
Floating tips, sound in space & aburpia
Why do we float horizontally in water? Why do some adults develop anaphylaxis? Is soda water good for you?
Oct 16, 2019
Itchy mouths, floating poo and stomach memory
Can you overcome gluten intolerance? Is toasted bread good for you? Should your poo sink or float?
Oct 9, 2019
Floating tanks, day light savings and holding in farts
What happens if you microwave a human? Is there anything wetter than water? What are the benefits of floating tanks?
Oct 3, 2019
Hungry galaxies, climate change and sleeping with eyes open
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.
Sep 26, 2019
Evolving dogs, coffee shakes and webbed toes
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?
Sep 19, 2019
Rising sea levels, brain's exploding and evolution
Is a Googleplex the biggest single number? Are rising sea levels only caused by ice melting? Why do we get blocked noses?
Sep 11, 2019
Bone density, inflammation and bionic eyes
Why do we have toe nails? Can we dry our clothes by freezing them? Why are sunrises and sunsets different colours?
Sep 5, 2019
Tongue flaps, pressure points and seal knees
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?
Aug 28, 2019
Snake bites, popcorn and nuclear devices
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?
Aug 22, 2019
5G, MSG and solar panels
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?
Aug 15, 2019
Decomposition, rigor mortis and coffins
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?
Aug 7, 2019
Bubbles, bushfires and back burning
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?
Aug 1, 2019
Life on another planet, dusk masks and solar sailing
How do we better our memories? What do people who were born blind dream about? How much material is used to make one screw?
Jul 25, 2019
Exploding stars, dark matter and meteor's
Can cats land on their feet in space? Why are planets round? What would happen to the earth if the sun moved closer?
Jul 17, 2019
Swallowing flem, blue light glasses and fruit flies
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?
Jul 11, 2019
Terraforming, moon wind and getting lost in space
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?
Jul 4, 2019
Dry hands, nervous weeing and resetting your sense of smell
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?
Jun 26, 2019
Jealously, falling off escalators and wobbly pens
Does fruit taste sweeter in the fridge? Are seagulls telepathic? Can indoor plants help with our air quality?
Jun 19, 2019
Hungry sneezing, remarkable redheads and the Tay Tay debate
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?
Jun 13, 2019
Period syncing, lip fillers and magic mushrooms
Why does coffee change taste as it cools down? Why do we get goosebumps? Do women's periods really sync up?
Jun 5, 2019
Car napping, stinging pineapple and your IQ
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?
May 30, 2019
Generic faces, slushie beers and 5G
Does spraying deodorant in your pits effect your health? Why don't I dream? How can I tell if I'm a loud chewer?
May 23, 2019
Sympathy spews, chubby rain and full-moon craziness
Could you make off milk drinkable by boiling it? Are you heavier after taking a shower? Can computer viruses become real life viruses?
May 16, 2019
Beard hairballs, purring pussies and green boogers
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?
May 8, 2019
Muscle memory, buttery sweat and our robot overlords
Where does the wind come from? Can we affect other peoples dreams? Why do some people smell like butter when they sweat?
May 1, 2019
Asapargus wee, sweating underwater and an infinite cycle of yawning
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?
Apr 17, 2019
Hot and cold breath, tilting dog heads and an infuriating itch
Why shouldn't we eat our own poo? Why do bruises change colour? And the lady who literally picked her brain
Apr 10, 2019
A whole lotta black holes, rubbish eating volcanoes and weeing in the ocean
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?
Apr 3, 2019
Headphone earwax, poisonous spiders and sticky things
Can different bird species communicate with each other? Why am I so sweaty? Why do animals have an even number of limbs?
Mar 27, 2019
Hacking driverless cars, killer blackheads and the earth's heartbeat
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?
Mar 20, 2019
Submarines in space, lupis and nostril hairs
Can animals be allergic to humans? Why do people always go on holidays near water? Why do I sleep talk?
Mar 13, 2019
Static shocks, amputees and glow-in-the-dark chicken.
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.
Mar 6, 2019
Red beard hairs, living underwater and movies on airplanes
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.
Feb 27, 2019
Cheek fillers, disappearing allergies and shower stinkies
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.
Feb 20, 2019
Chemical happiness, attractive bees and hot feet
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.
Feb 13, 2019
Live from Antarctica!
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.
Feb 6, 2019
Brown vs white rice, dairy acne and smelly food farts
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.
Jan 30, 2019
Cement nails, beached whales and red hair changing colour
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.
Jan 23, 2019
Cement nails, beached whales and red hair changing colour
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.
Jan 16, 2019
Travelers constipation, freckles and dark energy
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.
Jan 9, 2019
Eating after 6pm, sleep cycles, bird farts
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.
Dec 12, 2018
Deja Vu, sleep sneezes and eating vegan
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.
Dec 5, 2018
The perfect hot chocolate, body hair length, snorting
How do you make the perfect hot chocolate? Does snorting things destroy your sense of smell? What are the particles of atoms made of?
Nov 28, 2018
Sleep paralysis, hallucinations and meeting aliens
Do you get sicker if you pick your nose? How do you know to breathe? Why doesn't plastic cheese burn?
Nov 21, 2018
Brown rain, Chinese fusion and wax wraps
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.
Nov 14, 2018
Flies in winter, seeing underwater and concussions from gigs
Why do drug addicts like chocolate milk? Does donating blood burn calories? Where did the English language come from?
Nov 7, 2018
Musical Stockholm Syndrome, chip sweats, asthma itches
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?
Nov 1, 2018
Apple burps, dogs on the phone, the munchies
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.
Oct 24, 2018
Chewing gum, tank water tea and plastic in fish
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?
Oct 17, 2018
Old people smell, farts in water, teeth whitening
Special guests Science Journalist Binaca Nogrady and Dr Alice Williamson join Linda Marigliano to answer your science questions.
Oct 10, 2018
Corn in poo, Keto diets and cancer causing meats
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.
Oct 3, 2018
Inner monologues, curly hair and exploding in space
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.
Sep 26, 2018
Heart beats, sex withdrawals and itchy thighs
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?
Sep 19, 2018
Puppies, Arnold Schwarzenegger and memory
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?
Sep 12, 2018
Essential oils, exploding eggs and upside down lightning
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?
Sep 5, 2018
Black holes, quantum computing and oncoming doom
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.
Aug 29, 2018
Talking dogs, DNA breakthroughs and mozzie bites
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.
Aug 22, 2018
Creating gold, clicking and skin flaps
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.
Aug 15, 2018
Remembering dreams, Bermuda triangle, immortal jellyfish
Do cucumbers feel pain? Do mozzies have a purpose in the world? How do you measure a black hole?
Aug 8, 2018
Eating boogers, wasp stings, noise cancelling headphones
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?
Aug 2, 2018
Dying suns, falling in love and earwax
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!
Jul 18, 2018
Poo shapes, floating poop, the three second rule.
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.
Jul 11, 2018
Observable universe, new elements and black holes
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.
Jul 4, 2018
Cockroaches, bellybuttons and breastfeeding
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?
Jun 27, 2018
Visual snow, dripping taps, waking up grumpy
What's 'visual snow'? Why will a dripping tap wake you up but torrential rain won't? Why do some people wake up grumpy?
Jun 20, 2018
Animal echolocation, salt and vinegar sweats, peeing when you get home.
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?
Jun 13, 2018
Free electricity, sweaty palms and lion allergies
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?
Jun 6, 2018
Exploding beer, bath wrinkles, dog poop
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?
May 30, 2018
Cheese dreams, poo fungus, seeing stars
Why does cheese make you dream funny? Why is my dog's poo growing fungus? Why do I see stars when I sneeze?
May 23, 2018
Sneezing fits, pineapple juice and emotional smells
What causes a sneezing fit? Would your body dissolve in pineapple juice? Is your sense of smell related to your emotions?
May 16, 2018
Can maths predict the future?
Can maths predict the future? What about lotto numbers? Plus, the question that stumped the nation!
May 9, 2018
Hemp, nicotine and underwater spiders
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?
Feb 28, 2018
Allergies, time machines, and the meaning of 0
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?
Feb 21, 2018
Fasting, bluebottles and magnetic poles
Dr. Karl answers all your science questions, including; Is fasting good for you? How do bluebottles procreate? Are the magnetic poles changing places?
Feb 14, 2018
Itching, morning sickness & tazers
Dr. Karl answers all your science questions, including; what's the point of hiccups? Should you floss after brushing? Does sound travel in space?
Jan 31, 2018
Smells, The Pill & eclipses
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?
Jan 24, 2018
Tides, psychopaths & sweat
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?
Jan 17, 2018
Sand, facial hair & neuroplasticity
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?
Jan 10, 2018
Rollercoasters, plasma & wormholes
Dr. Karl answers all your science questions, including; what do flies want? How do bullets kill people? Why does dog poo turn white?
Nov 22, 2017
Left-handed kids, body bacteria & liquid nicotine
Why is the sky blue during sunsets? What's outside the universe? What came before the dinosaurs?
Nov 8, 2017
Quantum computing, future of cryptocurrency, emails to the past
Where does the past go? How do we keep human biases out of Artificial Intelligence? Can quantum computing help us solve p=np?
Aug 30, 2017
Electric shocks, bloody noses, sleep sneezing
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?
Aug 23, 2017
Frozen heads, period poos, looking at an eclipse
Could you keep moving your head to new bodies and live forever? How are birthmarks formed? Is it possible to bite or eat yourself?
Aug 16, 2017
Wombat poos, Beyonce flies & slow slugs
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!
Aug 14, 2017
Dr Karl reviews Unearthed tunes!
To celebrate Science Week, we recruited total ledge & Aus music lover Dr Karl to give us his hot takes on Unearthed.
Aug 9, 2017
Synaesthesia, multiple moons, safe AI
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?
Aug 3, 2017
Farting, space messages and disappearing tastebuds
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?
Jul 26, 2017
Morning breath, scent memory, baby hiccups
What's the deal with morning breath? Why do babies get hiccups when they laugh? How is scent linked to memory?
Jul 19, 2017
Sun mirror, essentials oils, vinyl records
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?
Jul 12, 2017
Underwater volcanoes, dog yawns, immortality
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?
Aug 19, 2015
Deep sea climate change, enviro bags, over-fishing
It's a Marine Science Special! Professor Emma Johnson joins Dr Karl and Zan Rowe to help answer your ocean-based science questions.
Aug 12, 2015
3D printed organs, muscle memory, that op shop smell
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?
Aug 5, 2015
Emotional chords, hungover libido, forced smiles
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?
Jul 29, 2015
Big dinosaurs, sun flames, four seasons in one day
How does addiction work? Why were dinosaurs so big? Does stress shorten your life?
Jul 22, 2015
Runny noses after eating? Why is urine yellow? Could space be a sphere?
Why does my partner get a runny nose, after eating a hot dinner? Why is urine actually yellow? Could space possibly be a sphere?
Mar 28, 2012
The science of driving
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?
Mar 21, 2012
Rocking during sleep, morning sickness and coloured cat fur
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?
Mar 7, 2012
Peeing on lemon trees, hereditary birth marks and yellow sunglasses
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?
Feb 29, 2012
Swallowing chewing gum, taste buds and drinking milk
What happens if you swallow chewing gum? Plus: can a woman's tastebuds change during and after pregnancy?; and can drinking milk cause osteoporosis?
Feb 22, 2012
Exploding crockery, furry male allergies and female ejaculation test results
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.
Feb 15, 2012
Sex, multiple orgasms and curing a morning glory
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.
Dec 7, 2011
Earbud headphones, jet-lag and funny trivial things
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?
Nov 30, 2011
Head spins, granite cookware and bullets fired in the air
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?
Nov 23, 2011
Celebrating 30 years of science talkback with Dr Karl
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.
Nov 16, 2011
Cannabis use and psychosis, with Dr Matthew Large
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.
Nov 9, 2011
Bad apples and the strange sounds our body can make
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?
Nov 2, 2011
Do snipers consider the Coriolis effect?
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?
Oct 26, 2011
Poltergeist phones and period cravings
Why do some mobile phones ring when they are switched off? And why do many women crave chocolate just before their periods?
Oct 19, 2011
Frozen wasps, projecting black and foggy windscreens
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?
Oct 12, 2011
Blocking phone signals, vinegar-soothed sunburn and popping a yawn
Do microwave ovens block mobile phone reception? Will vinegar sooth sunburn? How can you 'pop' a yawn?
Sep 21, 2011
Soft copper, blue tyres and compression pants
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?
Sep 14, 2011
Farmer's tales, shaved-head hair, and quantum physics and God
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?
Aug 31, 2011
Clean scars, ear plugs and sobering exercise
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?
Aug 24, 2011
Green tomatoes, vegans and static shock
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?
Aug 17, 2011
Itchy ankles, swelling cheeks and bellybutton fluff
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?
Aug 10, 2011
Seeing spots, white rainbows and ghosts
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?
Aug 3, 2011
Space special with NASA astronaut Dr Gregory Chamitoff
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.
Jul 27, 2011
Workout music and rumbling stomachs
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?
Jul 20, 2011
Upset apples, brain capacity and caffeine sickness
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?
Jul 13, 2011
Sunburnt nipples and global warming
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?
Jul 6, 2011
Unmoving escalators, circumnavigating ash clouds and orange oranges
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?