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Preview: Science on Mornings, on triple j

Dr Karl on triplej

Join Dr Karl Kruszelnicki, Zan Rowe and their scientific guests, with a bunch of curious triplej listeners for a weekly injection of science, myth-bashing and answers! Thursdays from 11am EST.

Published: Thu, 29 Mar 2012 13:58:00 +1000

Copyright: Copyright Australian Broadcasting Corporation.

Hot batteries, space corpses, helium voices

Thu, 20 Apr 2017 09:00:00 +1000

Is there a link between migraines and De Ja Vu? Why does lightning strike before thunder? Would a full hard drive weigh more than an empty hard drive?

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Rollercoasters, space water, the Southern Cross

Thu, 13 Apr 2017 09:00:00 +1000

Why do I sweat more than my friend? How many names and faces is it possible for a person to remember? Why do people with Tourette syndrome swear in their outbursts?

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Human superpowers, remembering dreams, asteroids

Thu, 06 Apr 2017 09:00:00 +1000

Is it possible for humans to have superpowers? Should we just let asteroids hit the earth so we can make use of the precious elements they contain? Why do I always wake up before reaching my destination?

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Multiverses, string theory, global consciousness

Thu, 30 Mar 2017 09:00:00 +1000

Professor Brian Greene, Theoretical Physicist and String Theorist from Columbia University joins Dr Karl and Zan to answer all your multiverse and string theory questions.

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Seeing the same colours, downward bubbles, space elevators

Thu, 23 Mar 2017 09:00:00 +1000

Dr Karl and Zan are joined by Bubble Physicist Dr Helen Czersky to answer your questions like: why stout bubbles go down, whether or not we'll ever see space elevators and whether we all see the same colours.

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Spaghettification, multiverses, the end of space

Thu, 16 Mar 2017 09:00:00 +1000

Dr Karl and Zan are joined by Astrophysicist Professor Lisa Harvey-Smith to answer your star based questions like: Where does space end? Is it possible there are multiple universes? What is Spaghettification?

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Double rainbows, tidal waves and lightning strikes

Thu, 09 Mar 2017 09:00:00 +1000

Dr Karl and Zan are joined by Meteorologist Nate Byrne to answer your weather based questions like why injuries flare up when it rains, what keeps clouds in the sky and whether you could survive a tidal wave.

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Soul weight, head eggs, e-cigarettes

Thu, 02 Mar 2017 09:00:00 +1000

Why do you get an egg on your head when it gets hit? How much does a soul weigh? Why do you wake up with a song stuck in your head?

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Space babies, empathetic pain, clean coal

Thu, 23 Feb 2017 09:00:00 +1000

Can you conceive a child in space? How far away are we from teleportation? Is there such a thing as clean coal?

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Feeling tingly, tree lifespan, migraine

Thu, 16 Feb 2017 09:00:00 +1000

Can you talk yourself out of a migraine? Why do we cry? Can a tree live forever? What causes the tingly feeling you get when you get excited, or inspired?

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Nutrition Professor Clare Collins

Thu, 09 Feb 2017 09:00:00 +1000

Professor Claire Collins answers: What happens if you cut out all sugar? Would diabetics benefit from a vegan diet? Why does fruit give you the runs?

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The sneeze smell, hologram universe, pack animal behaviour

Thu, 02 Feb 2017 09:00:00 +1000

Is the universe a hologram? Why do adolescent men act more like pack animals? Why does a bee come in and out of my house and land in the exact spot each time?

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Un-poppable popcorn, the colour of lightning, tickling

Thu, 19 Jan 2017 09:00:00 +1000

Why are we ticklish? Why do some pop-corns never pop in a saucepan, or microwave? If you're drunk and you have a blood transfusion, would you become sober?

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Itchy skin, moths and lights, touch screen and cold fingers

Thu, 12 Jan 2017 09:00:00 +1000

Why are moths attracted to lights? What exactly is happening on my skin when I feel itchy? Why does my cold finger not work as well on a phone touch-screen?

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Wanting to hurt cute things, stomach grumbles, lost voices

Thu, 15 Dec 2016 09:00:00 +1000

Why do I want to hurt cute things? Why does a stomach grumble when it's hungry? What physically happens when you lose your voice?

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Underwater farts, cosmic strings, snake knots

Fri, 09 Dec 2016 09:00:00 +1000

Does a fart smell worse if it happens underwater? Would a snake be able to untie itself from a knot? What are cosmic strings?

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'Skinny fat', fasting for weight loss, feeling full

Thu, 01 Dec 2016 09:00:00 +1000

With special guest Ruben Meerman the Surfing Scientist!Why do people use the ketogenic diet for weight loss? Is intermittent fasting good for weight loss? What happens if you don't eat ANY fruit and veg?

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Foggy glasses, pins and needles, the colour of clouds

Thu, 24 Nov 2016 09:00:00 +1000

What gives clouds their colours? Why does only one side of my glasses fog up when I put them on? What causes pins and needles?

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Pulling sour faces, animal accents, body water and the moon

Thu, 17 Nov 2016 09:00:00 +1000

Does the moon affect the water in our bodies? Do animals have accents? Why does your face screw up when you eat sour things?

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Traffic forming, spiders' webs, the purpose of tears

Thu, 10 Nov 2016 09:00:00 +1000

What are the purpose of tears? Can spiders get caught in other spiders webs? How does traffic form on the freeway?

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Parallel universes, death rays, time travel

Thu, 03 Nov 2016 09:00:00 +1000

Is it possible to travel back in time to visit yourself? If the human species was shrunk, would we be a more sustainable species? Do parallel universes exist?

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The Big Bang, blocked nostrils, closing eyes

Thu, 27 Oct 2016 09:00:00 +1000

What caused the big bang? Why is it that when you say a word multiple times you forget its meaning? When you have a cold, why can only one nostril get blocked?

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Drinking rusty water, re-animation, dying from heart break

Thu, 20 Oct 2016 09:00:00 +1000

How many sports drinks is too many? Can you die of heart break? Is it possible to re-animate a dead body?

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Chemotherapy and hair, sharks and magnets!

Thu, 13 Oct 2016 09:00:00 +1000

Why does hand colour/ type change after chemo? How long does it take your body to adjust to a new time zone? What do sharks think about magnets?

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Alcohol and energy, prune skin, tickle tickle!

Thu, 06 Oct 2016 09:00:00 +1000

What happens to your body when you mix alcohol with energy drinks? Why does wet skin shrivel? And why is it that your're more susceptible to other people's tickling than your own?

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Magnet brain, time travel, that disgusting water dogs drink

Thu, 29 Sep 2016 09:00:00 +1000

If you put two magnets on either side of your head, what happens to your brain? Will time travel be possible in my lifetime? Why can dogs drink disgusting looking water?

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Contagious laughter, spoon reflections, neanderthal hair

Thu, 22 Sep 2016 09:00:00 +1000

Is laughter contagious? When I look into a spoon, why is my reflection upside down? Why does your voice sound different when recorded?

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Peeing on your feet, Pluto's planet status, contagious hiccups

Thu, 15 Sep 2016 09:00:00 +1000

Is Pluto a planet? Does peeing on your feet cure fungal infections? Are humans more intelligent now than in the past?

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Jet fuel vs. steel beams, supernovas, bone cracking

Thu, 08 Sep 2016 09:00:00 +1000

Can jet fuel melt steel beams? If the sun went supernova, what would we see? Why can we crack bones in our body?

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Double dipping, zombie apocalypse, developing sonar

Thu, 01 Sep 2016 09:00:00 +1000

Is double dipping harmful? What are the chances of a zombie apocalypse happening? Are people attracted to similar looking partners?

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Colourblindness, lucid dreaming, fart training

Thu, 25 Aug 2016 09:00:00 +1000

Why do some people fart more than others? Is your consciousness in control of lucid dreaming? Will there ever be a cure for colorblindness?

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Spider bites, daddy long-legs poison, acronophobia

Thu, 18 Aug 2016 09:00:00 +1000

Biochemist, science communicator and spider fan Dr Maggie Hardy joins Dr Karl to answer your questions about spiders!

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Going commando, hybrid vegetables, world records

Thu, 11 Aug 2016 09:00:00 +1000

How are hybrid vegetables created? Is going commando bad for testicular cancer? Why does phone reception improve at night?

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Starkiller Base, time travelers, the opposite of gravity

Thu, 04 Aug 2016 09:00:00 +1000

Physicist Brian Cox joins Dr Karl to help answer all your questions about space and astrophysics.

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Same food different farts, is Paleo valid, should I go Vegan

Thu, 28 Jul 2016 09:00:00 +1000

Why can the same meal cause different levels of flatulence? Is it better to go vegan or eat meat? What's the validity of the Paleolithic diet?

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Killer sounds, holding in pee, space growth

Thu, 21 Jul 2016 09:00:00 +1000

Can you stretch your bladder by holding pee in? Is there a sound that can kill you? What would happen if the moon was destroyed?

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Shrinkage, muscle memory, nanotechnology

Thu, 14 Jul 2016 09:00:00 +1000

What causes shrinkage? How does a dowsing stick find water? How does muscle memory work?

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Horny food, body hair, itching

Fri, 08 Jul 2016 09:00:00 +1000

Why do women have less body hair than men? Are foods like oyster really an aphrodisiac? What causes an itch?

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Terraforming a planet, spicy food, reanimation

Thu, 30 Jun 2016 09:00:00 +1000

Is it possible to terraform a planet? Why does spicy food burn on they way out? Could you freeze someone, then re-animate then?

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Nuclear cockroaches, dynamic gravity, dish washing

Thu, 23 Jun 2016 09:00:00 +1000

Can cockroaches survive a nuclear blast? Why do kids sometimes write letters backwards? Is it better to wash dishes with hot water?

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Animal laughs, fussy eaters, living in a simulation

Thu, 16 Jun 2016 09:00:00 +1000

Do animals laugh? Why are some people fussy eaters? Are we living in a simulation?

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Space babies, the Northern Lights, flickering stars

Thu, 09 Jun 2016 09:00:00 +1000

Zan and Dr Karl are joined by Cosmologist Geraint F. Lewis to answer all your questions about SPACE!

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Breaking the seal, the colour of snot, sleepy coffee

Thu, 02 Jun 2016 09:00:00 +1000

Why is snot green? Where is the Internet? Why are bubbles round? Can you vomit poop?

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Sleep peeing, white bubbles, moon rings

Thu, 26 May 2016 09:00:00 +1000

Why do cats gravitate to sleeping on top of your face? Does the shipping industry contribute to rising sea levels? Is ADD a modern diagnosis or an evolutionary trait?

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Salami rocket fuel, spoon reflections, self-cleaning planets

Thu, 19 May 2016 09:00:00 +1000

Are we still taking plants to outer space? Would the earth clean itself, if humanity left the planet? Can you cultivate a pimple in a particular spot?

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Artificial gravity, Goldilocks planets, gravitational waves

Thu, 12 May 2016 09:00:00 +1000

Special guest Warwick Holmes (formerly with the European Space Agency) helps Dr Karl answer your science questions!

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Event horizons, tap water taste, shooting stars

Thu, 05 May 2016 09:00:00 +1000

Why do birds always fly in front of cars at the last second? If the polar caps melt will the Earth move off its axis? Do artificial lights mess up our diets?

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Sleep talking, the edge of space, sonic booms

Thu, 28 Apr 2016 09:00:00 +1000

What's on the edge of space? Is sleep talking hereditary? Is there any difference to your body weight after you fart?

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Deep sea climate change, enviro bags, over-fishing

Thu, 20 Aug 2015 09:00:00 +1000

It's a Marine Science Special! Professor Emma Johnson joins Dr Karl and Zan Rowe to help answer your ocean-based science questions.

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3D printed organs, muscle memory, that op shop smell

Thu, 13 Aug 2015 09:00:00 +1000

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?

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Emotional chords, hungover libido, forced smiles

Thu, 06 Aug 2015 09:00:00 +1000

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?

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Big dinosaurs, sun flames, four seasons in one day

Thu, 30 Jul 2015 09:00:00 +1000

How does addiction work? Why were dinosaurs so big? Does stress shorten your life?

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Runny noses after eating? Why is urine yellow? Could space be a sphere?

Thu, 23 Jul 2015 09:00:00 +1000

Why does my partner get a runny nose, after eating a hot dinner? Why is urine actually yellow? Could space possibly be a sphere?

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The science of driving

Thu, 29 Mar 2012 13:24:00 +1000

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?

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Rocking during sleep, morning sickness and coloured cat fur

Thu, 22 Mar 2012 13:09:00 +1000

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?

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Peeing on lemon trees, hereditary birth marks and yellow sunglasses

Thu, 08 Mar 2012 13:46:00 +1000

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?

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Swallowing chewing gum, taste buds and drinking milk

Thu, 01 Mar 2012 13:12:00 +1000

What happens if you swallow chewing gum? Plus: can a woman's tastebuds change during and after pregnancy?; and can drinking milk cause osteoporosis?

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Exploding crockery, furry male allergies and female ejaculation test results

Thu, 23 Feb 2012 12:48:00 +1000

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.

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Sex, multiple orgasms and curing a morning glory

Thu, 16 Feb 2012 12:34:00 +1000

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.

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Earbud headphones, jet-lag and funny trivial things

Thu, 08 Dec 2011 13:06:00 +1000

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?

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Head spins, granite cookware and bullets fired in the air

Thu, 01 Dec 2011 13:16:00 +1000

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?

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Celebrating 30 years of science talkback with Dr Karl

Thu, 24 Nov 2011 13:20:00 +1000

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.

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Cannabis use and psychosis, with Dr Matthew Large

Thu, 17 Nov 2011 13:20:00 +1000

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.

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Bad apples and the strange sounds our body can make

Thu, 10 Nov 2011 13:01:00 +1000

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?

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Do snipers consider the Coriolis effect?

Thu, 03 Nov 2011 12:48:00 +1000

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?

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Poltergeist phones and period cravings

Thu, 27 Oct 2011 13:51:00 +1000

Why do some mobile phones ring when they are switched off? And why do many women crave chocolate just before their periods?

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Frozen wasps, projecting black and foggy windscreens

Thu, 20 Oct 2011 12:37:00 +1000

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?

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Blocking phone signals, vinegar-soothed sunburn and popping a yawn

Thu, 13 Oct 2011 12:53:00 +1000

Do microwave ovens block mobile phone reception? Will vinegar sooth sunburn? How can you 'pop' a yawn?

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Soft copper, blue tyres and compression pants

Thu, 22 Sep 2011 12:53:00 +1000

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?

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Farmer's tales, shaved-head hair, and quantum physics and God

Thu, 15 Sep 2011 13:44:00 +1000

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?

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Clean scars, ear plugs and sobering exercise

Thu, 01 Sep 2011 12:39:00 +1000

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?

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Green tomatoes, vegans and static shock

Thu, 25 Aug 2011 12:59:00 +1000

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?

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Itchy ankles, swelling cheeks and bellybutton fluff

Thu, 18 Aug 2011 12:20:00 +1000

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?

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Seeing spots, white rainbows and ghosts

Thu, 11 Aug 2011 12:30:00 +1000

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?

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Space special with NASA astronaut Dr Gregory Chamitoff

Thu, 04 Aug 2011 12:40:00 +1000

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.

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Workout music and rumbling stomachs

Thu, 28 Jul 2011 13:06:00 +1000

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?

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Upset apples, brain capacity and caffeine sickness

Thu, 21 Jul 2011 13:05:00 +1000

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?

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Sunburnt nipples and global warming

Thu, 14 Jul 2011 12:17:00 +1000

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?

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Unmoving escalators, circumnavigating ash clouds and orange oranges

Thu, 07 Jul 2011 13:30:00 +1000

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?

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