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Can a Mobile Phone Compromise your Sperm Count?
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 What's the point of earwax? Does WiFi damage the brain? Can a mobile phone in a trouser pocket dent a man's fertility? In this week's science Q and A show we also brush up on how they get the stripes in toothpaste, discover whether dropped food follows the 5 second rule and shed light on why some forms of EM radiation more damaging than others. Plus, news of a new microscopic MRI machine for molecules, how computer games can alleviate the symptoms of schizophrenia and why what a woman eats, even before becoming pregnant, can have a lifelong genetic legacy for her offspring...
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If you ask me what the primary colours are, I'd say Red, Green, Blue. They are often shown on TVs and Computer Screens.
Ask any artist, I've just had a conversation with one, and they will insist they are Red, Yellow, Blue - after all, you have to mix blue and yellow to get gr...
Hi Chris
I was on a video call today. That was bad enough. What was worse, however, is that when speaking to the people at the far end, I could continually hear my own voice echoed at their end, This meant I would start speaking, hear myself, and then not be able to easily con...
Hello gang,
Recently read an article on effects of wifi on the brain, especially small children and while there seems to be a strong debate over the findings, I've become a bit concerned. Our 3 yr. old son Gus attends preschool where the admin. use wifi, so I have curtailed us...
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Hi Chris
My ten year old son Joshua Woolf asked me why the air that you breathe out when you blow out candles is cold as opposed to the arm air that you breathe out when you want to mist a window. I explained that the warm air comes from inside your body and the colder air i...
Why do scientists use calcium as an indicator of the overall health of a nerve cell?
Hello Naked Scientists!
I listen to your podcast here in Austin, Texas, USA.
Around here parents have a "two second rule" for food that has fallen on the ground. The idea is that if the food item has been on the ground for less than 2 seconds it has not had enough time to ...
A classic experiment showing what happens to air from a candle when it is enclosed.
Certain computer games have been shown to improve the symptoms of schizophrenia and produce long-lasting benefits for patients...
Why when you squeeze a tube of toothpaste with the lines of seperate colours do the colours not smudge into each other? They always come out in perfect lines.
It’s well known that what you eat, drink or smoke during pregnancy can have long term consequences on the developing foetus. But now, researchers at Cambridge University have identified how a mother’s diet before she becomes pregnant can lead to genetic changes that last well b...
Hear how meat is being made in the lab using stem cells, the flaws identified which could mean those neutrinos weren't moving so fast, track botulinum toxins as they move through the guy and discover the sweet smell of fear...in fish.
Building an instrument to fly on board a satellite is a feat of precision engineering. It’s got to be robust enough to withstand the launch, sophisticated enough to produce new science and – since you can’t easily call out a repairman – very reliable. We find out how they're t...
Dear Naked Scientists,
I'm in the U.S. and I LOVE LOVE your podcast. I listen to it while I work -- I'm a graphic designer, so when your program is on I've got sort of a left-brain/right-brain thing going on.
Anyway, I was wondering why we have earwax. What's it for and how...
Hello Dr Chris,
Do you get less exposure from the microwaves emitted by a mobile
phone if you use a wired handsfree? I read or heard somewhere that
the aerial for phones has to be a certain size; a lot shorter than the
length of copper in a wired handsfree, meaning it won'...
How does EM radiation damage change with frequency?
How does the Earth's crust protect us from the heat of the mantle below? And how thick would a crust need to be in order to walk on the surface of the Sun?
What can accelerate the speed of your body’s metabolism?
Why do some people get so much build-up of ear wax that they can't actually hear?
Will having my mobile phone in my trouser pocket affect my sperm count?”
As the joke goes...if you cross a kangaroo with a sheep you get a wooly jumper. Is it now possible with modern techniques to cross different animals to make one completely new species?
PS The show is awesome, keep up the good work.
Vinny
Rochdale, Greater Manchester.
A plant frozen in Siberia for over 30,000 years has been brought back to life by scientists in Russia.
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