Ask the Naked Scientists

This Week, Chris Smith and Ben Valsler join Redi in the studio for an extended Ask the Naked Scientists! We find out why the sky appears blue and if electric blankets are bad for your health. Plus, how hot is empty space, how do dogs see the world and many more science questions. Like this podcast? Please help us by supporting the Naked Scientists

How do doctors name phobias? Is the ice on the freezer sides safe to eat? What is the low-frequency hum I can hear? Is pipe tobacco tar good for cuts and sores? Why do birthmarks persist? What keeps the head so hot? Why are animals alarmed by loud noises? A bumper crop of science questions awaits Dr Chris in this week's Ask the Naked Scientists... Like this podcast? Please help us by supporting the Naked Scientists Like this podcast? Please help us by supporting 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