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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.

Urine, missiles and extinction

Thu, 19 Apr 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; what happens during metamorphosis? How high do you have to be to see the curve of the Earth? What's the point of shyness?

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Rainbows, sunburn and space junk

Thu, 12 Apr 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; can you prevent sleepwalking? Why do people sing without accents? What will happen if Ben and Liam eat that 11 year old cheeseburger?

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Leaves, lava and wasps

Thu, 05 Apr 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; when will we have wind turbines for our homes? Does the full moon make you crazy? And the ever-important question - what came first, the chicken or the egg?

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Piercings, soft drinks and homeostasis

Thu, 29 Mar 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; do solar panels work inside cars? Why do some people get bitten by mozzies more often? Do we all see the same colours?

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Vaccinations, yawns and regenerative limbs

Thu, 22 Mar 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; why does eye colour change? Is our perception of time Earth-centric? What's the best temperature to cook eggs?

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Food, farts and faeces

Thu, 15 Mar 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; what's the deal with fecal transplants? How do preservatives affect your body? Should a grown man eat his vegetables?

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Eggs, male PMS, and the dark side of the moon

Thu, 08 Mar 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; can you breastfeed after being bitten by a snake? How do you create artificial gravity? How many nutrients are lost in frozen foods?

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Allergies, time machines and the meaning of 0

Thu, 01 Mar 2018 09:00:00 +1000

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?

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Fasting, bluebottles and magnetic poles

Thu, 22 Feb 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; Is fasting good for you? How do bluebottles procreate? Are the magnetic poles changing places?

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Hiccups, flossing, sounds in space

Thu, 15 Feb 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; what's the point of hiccups? Should you floss after brushing? Does sound travel in space?

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Mammal yawns, body shocks, air pockets

Thu, 01 Feb 2018 09:00:00 +1000

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?

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Humid weather, sleep twitches, coffee shakes

Thu, 25 Jan 2018 09:00:00 +1000

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?

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Stress dreams, morning people, period syncing

Thu, 18 Jan 2018 09:00:00 +1000

Dr. Karl answers all your science questions, including; do stressful dreams affect sleep quality? Are there really morning and night people? Why do periods sync?

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Rollercoasters, white dog poo, wormholes

Fri, 12 Jan 2018 09:00:00 +1000

Why does dog poo turn white? What is plasma? Why are bugs attracted to light?

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Fossil fuels, cruise control, tears of joy vs sadness

Thu, 14 Dec 2017 09:00:00 +1000

Does Cruise Control use more petrol than regular driving? Do we have UV sensors in our skin? Is there any physical difference between tears of joy and tears of sadness?

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Tap vs Bottled water, voices, the golden ratio

Thu, 07 Dec 2017 09:00:00 +1000

Why does everyone have a different sounding voice? When are things wet? Why is milk white?

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Cold beer, hail storms, stuttering

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

Does a beer can get colder than when in a stubby bottle? Do ice cubes freeze faster when you use hot water? Why is rainfall measured in millimeters not milliliters?

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Before dinosaurs, sense of direction, migraines

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

Does baby oil amplify the sun's rays and give you worse sunburn? What's outside the circle of the universe? Does your internal sense of direction change between the southern and northern hemispheres?

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Animal camouflage, artificial organs, blocked noses

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

What happens to your brain when you're dizzy? Why do I get goosebumps when I need to poo? Why does it feel weird when you lay on the opposite side of the bed?

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Bitcoin mining, AI algorithms, data diamonds

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

Professor David Reilly joins Dr Karl to answer your questions about quantum computing, AI and nanoscience.

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Being ticklish, alcohol flushes, crossed eyes

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

Why am I so ticklish? Why is the human eye attracted to sparkly things? How come you can remember the start of a word but not the full one?

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Tip of your tongue, cry faces, shower wees

Wed, 25 Oct 2017 09:00:00 +1000

Why do you need to wee when you're in the shower? What happens when there's something on the 'tip of your tongue'?' Why do we pull faces when we cry?

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Random itches, snake venom, black clothes attracting heat

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

Can snakes poison themselves with their own venom? Why do tattoos change colour after getting out of the shower? Does wearing black clothing attract more heat?

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Professor Clare Collins joins Dr Karl and answers your food science questions

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

Dietitian Professor Clare Collins joins Dr Karl and Zan to answer all your food science related questions. Is naturally occurring sugar in fruit the same as processed sugar? Why do some people hate coriander? What are ketones and what role do they play in the diet?

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Bill Nye joins Dr Karl to answer your science questions

Thu, 05 Oct 2017 09:00:00 +1000

Bill Nye joins Dr Karl and Zan to answer your burning science questions like: what would happen to the Earth if it stopped spinning? How does the vacuum of space exist? Why is beach sand hard or soft?

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Earwax taste, losing sneezes, bloody noses

Thu, 31 Aug 2017 09:00:00 +1000

Why does earwax taste so bitter? Why does food in our mouth always go to our most dominant side? What are memories physically made from?

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Solar eclipse staring, money germs, birthmarks

Thu, 24 Aug 2017 09:00:00 +1000

Is staring at a solar eclipse damaging? How does one dog year equate to 7 dog years? Why does it physically feel so good to turn your alarm off and go back to sleep?

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Wombat poo, maggot wound cleaning, apocalyptic cockroaches

Thu, 17 Aug 2017 09:00:00 +1000

Special guests Dr Bryan Lessard from the CSIRO and Dr Rebecca Johnson from the Australian Museum join Dr Karl and Zan to answer your science questions.

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Synasethesia, multiple moons, safe AI

Thu, 10 Aug 2017 09:00:00 +1000

What is happening in the brain when someone experiences synasethesia? What would happen if we had more than one moon? How fast would you need to travel to keep up with the sun?

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Death by farts, alien messages, tongue ulcers

Thu, 03 Aug 2017 09:00:00 +1000

How many farts would it take to kill someone in an enclosed space? Have we ever got any replies from out messages to space? Why do people rock when they're anxious?

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Morning breath, scent memory, baby hiccups

Thu, 27 Jul 2017 09:00:00 +1000

What's the deal with morning breath? Why do babies get hiccups when they laugh? How is scent linked to memory?

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Sun mirror, essentials oils, vinyl records

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

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?

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Underwater volcanoes, dog yawns, immortality

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

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?

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Quantum mechanics, interstellar travel, suspending light

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

Professor Stephen Bartlett joins Dr Karl and Zan to answer all of your Quantum mechanics questions.

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Penguin knees, ear pimples, magnetic fields

Thu, 29 Jun 2017 09:00:00 +1000

What would happen if the earth stopped rotating? Can you stick coins to your forehead, through your own magnetic field? Do penguins have knees?

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Itching, faraday cages, mermaids

Thu, 22 Jun 2017 09:00:00 +1000

Is there a way i can prove the earth is spinning? Where would a helium balloon go in space? Can you eat spider venom?

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Stomach butterflies, baby hair, making gold

Thu, 15 Jun 2017 09:00:00 +1000

Why does my dog like to eat its own hair? What's actually happening when we get butterflies in our stomach? Are there any parts of the human body that are inedible?

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Faster than light speed, screaming in pain, Earth mass

Thu, 08 Jun 2017 09:00:00 +1000

Where does all the poo in the world go? Why do we scream when we're in pain? What would happen if something went faster than light speed?

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3D movie sickness, natural crystals, melting wood

Thu, 01 Jun 2017 09:00:00 +1000

Why can birds stand of electrical wires, without getting shocked? Why do I get sick from video games and 3D movies? Can you melt wood?

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Armpit smells, blurry headstands, homing pigeons

Thu, 25 May 2017 09:00:00 +1000

Does shaving your armpits make them less smelly? Why can we eat mouldy cheese, but not mouldy bread? How do homing pigeons know where to fly home to?

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Doggie memories, laughing fits, fish energy

Thu, 18 May 2017 09:00:00 +1000

How do dogs remember, or learn, that they've misbehaved? Why doesn't rainwater collected from a roof go bad? When sucking air out of a bottle, why does it form a vaccum?

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Why we fear, the speed of smell, moon crash

Thu, 11 May 2017 09:00:00 +1000

What is the evolutionary purpose of having a facial reaction when seeing others in pain? Why doesn't the moon crash into the Earth? Can you measure the speed of smell?

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Morning pee, twinkling stars, sunset colours

Thu, 04 May 2017 09:00:00 +1000

Why do you have to pee every morning when you wake up? Why are sunsets different colours on different days? Can personality traits be genetic?

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Period syncing, bum wiping, photographic memories

Thu, 27 Apr 2017 09:00:00 +1000

Do women's periods sync up when they live together? Is there any evidence for someone having a truly photographic memory? Why does your face go red when you drink alcohol?

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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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