Your Questions and the BA Science Festival
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There's a bulging mailbag of science questions for the Naked Scientists this week, as we find out why we stop smelling smells, whether we can use viruses to kill cancer and why crisp and sweet packets make so much noise? Also, how unmanned spy-planes can speed up medical diagnoses in rural countries, how Internet anti-spam technology is helping to interpret ancient manuscripts, and the first water bears in orbit - how tardigrades survived a trip into space, without a suit! Plus, in Kitchen Science, Dave shows you how to impale a potato using only a drinking straw!
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In some cases, the human heart can be 'pre-conditioned', and as such can withstand the damage of a heart attack. Now, researchers have found a way to re-create pre-conditioning, and possibly save lives...
If you have ever wondered how to impale a potato with a straw? Then this experiment is for you...
Why is it that some smells disappear with continued smelling?
How does a Newton’s Cradle work? In school I was taught that the mass X velocity = mass X velocity. In other words, one ball in means one ball out. The teacher pulled back two balls and let go. The two balls at the other end of the contraption went up about the same distance as t...
The molecules in a single drop of water diluted evenly in the Earth’s oceans would result in the density of one molecule per litre of sea water. In other words, if you made one little drop of water go into the sea somewhere, given enough time, there’s enough molecules in one drop...
You have to spend 10-20 minutes in the sun to make vitamin D. Since I moved to Australia I’ve also been told how important it is to wear sun block. My question is, does wearing sun block affect the rate that vitamin D gets formed at? Is there no difference?
This year's BA festival was held in Liverpool - the European City of Culture. Lord Robert Winston explains why a culture of science
I had an L-shaped stone, threw it in the water and but all the ripples were circular. Why is that?
You discussed pressurising air in the aeroplane. Listeners were saying they’d been on planes and their ears had popped. Why do they pressurise the plane to only 8000 feet? Why don’t they pressurise it to atmospheric pressure?
How do you age a palm tree because they don’t have rings?
Why do crisp packets and sweet wrappers make so much noise?
Is it true that you can re-grow the liver after chopping a bit off? Could that be the answer for the thousands of people that are waiting? We could turn the population into liver donors.
Could viruses be engineered to attack cancer cells selectively?
I was just wondering, is there any radiation that would come from a glow-in-the-dark watch that would be harmful to the wearer?
If you happen to have your jugular artery or femoral artery cut how long would it take for you to bleed out? I was having a heated discussion with someone about it. He says 36 hours. I say he’s nuts, it would just be a few minutes. Who’s right?
If light has no mass, how can a black hole capture it?
What makes our hair turn grey? Is it true that things like fright and stress can make that happen?
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