Ask the Naked Scientists

Can haemorrhoid cream treat under-eye bags, how much radiation was released from Fukushima, why is the moon larger on the horizon, what constitutes stamina, are mobile masts making me ill, why does logic vary between individuals and how does a drug know where to go in the body? Join Dr Chris for the answers and news of the E. coli outbreak in Europe and a new molecule to render mosquitoes anosmic! Like this podcast? Please help us by supporting the Naked Scientists

Can a tropical storm be steered? Why should a stone hitting the outside of a window produce a chip on the inside surface? Why do aircraft sound louder going away than when they approach? Dr Chris gets to grips with another crop of top questions as well as news of a new magnetic material activated by electrons, a dye to image the insides of arteries and how scientists have sized up the shape of the electron... Like this podcast? Please help us by supporting the Naked Scientists

Why can't a person see clearly underwater, what causes sensitive teeth, why do I wake up paralysed and can snail shells treat scars? Join Dr Chris for the answers to this week's crop of science questions as well as news of a breakthrough in immune suppression, a sugar-fuelled filter to remove chemicals from drinking water and why gossip affects the way you look at people... Like this podcast? Please help us by supporting the Naked Scientists

Why is sea level rising, are organ transplants between males and females feasible, what keeps a moving bike upright and what causes epilepsy? Join Dr Chris for the answers to this week's crop of top questions as well as how climate change is denting wheat and maize yields and how the box jellyfish can see where it's going... Like this podcast? Please help us by supporting the Naked Scientists

This week, modelling schizophrenia in a dish, why bats roost inverted, what remains in the ground after oil has been removed, why planets form on a horizontal plane, why we get goosepimples, near-death experiences, the cause of cold urticaria and why an ice-cube is white in the middle. Like this podcast? Please help us by supporting the Naked Scientists

Are there any impacts of ground fracturing to recover oil and gas, how do colour-changing creatures coordinate with their surroundings, why do ants invade peoples' houses, what is "yuppie flu" and are all snowflakes really different? Plus, news of how scientists are growing a replacement retina in a dish and why keeping the world tidy makes the population less prejudiced... Like this podcast? Please help us by supporting the Naked Scientists

The fate of soundwaves, can salamanders use silicon, why did the moon come closer to Earth, do you need to inhale to smell something, how do drugs know where it hurts and what preceded the Big Bang. Join Dr Chris for the answers to this week's crop of questions and news of how fish are helping scientists solve the problem of melanoma... Like this podcast? Please help us by supporting the Naked Scientists

Should you keep your banana in the fridge? Why are ice-cubes easier to eject from top-shelf freezer trays? Why not site nuclear reactors underwater in the ocean to help keep them cool? Why was the tsunami water that hit Japan so dirty? Why did the Fukushima reactors release hydrogen? Where did my some get his altered earlobes? Join Dr Chris for this week's crop of questions from 702, including a look at the nuclear threat from Japan as well as gene therapy for Parkinson's Disease and how sperm get turned on... Like this podcast? Please help us by supporting the Naked Scientists

What causes the rainbow of colours around an aircraft's shadow, why are moths and mosquitoes attracted to lights, plasma vs LCD TV - what's the difference, how does a mosquito know when it's full of blood, are you ever too old to learn, and how do scientists calculate the calories in foods? Join Dr Chris for this week's bumper crop of questions from TalkRadio 702... Like this podcast? Please help us by supporting the Naked Scientists

How do melons concentrate water in their flesh? Why do some hairs grow longer than others? What's the advantage of African curly hair? Does the DNA of a donated organ displace that of the recipient? What are sunspots? Join Dr Chris for another mind-stretching mental work out solving your scientific problems as well as news of how mamalian hearts can regenerate themselves, and a new lasrer technique to spot melanoma... Like this podcast? Please help us by supporting the Naked Scientists