Ask the Naked Scientists

Do energy saving lightbulbs give you headaches? How do LED lights work? How do CD's show us the spectrum of light? Can we see magenta in the spectrum? We tackle these question on this week's show. We also find out how trrains stay on their tracks and whether it's possible to communicate when tarvelling faster than the speed of sound! Like this podcast? Please help us by supporting the Naked Scientists

Why do we see stars in the sky? Why do stars twinkle? Why can't we tickle ourselves? And how do stinging nettles sting? We tackle these question in this weeks show. We also find out whether eyesight can improve with age, how fibre optics work, why water doesn't burn and we reveal what hypermiling is! Like this podcast? Please help us by supporting the Naked Scientists

How does Solar heating work? What is Sciatica? What's the point of space exploration? We tackle these challenges in this week's show. We'll also be finding out why we get headaches, whether we can duplicate stem cells using their DNA and explain why it's possible for humans to land on the Moon, but not Mars. Like this podcast? Please help us by supporting the Naked Scientists

Would a matchbox spark in space? How do re-igniting candles work? How does an energy-saving lightbulb work? Does the sun rotate like the earth? We answer these questions this week, as well as reveal how mobile phone charms work, investigate why New Zealand has mainly non-deciduous trees and find otu if rainwater is safe to drink. Like this podcast? Please help us by supporting the Naked Scientists

Why do we have Adam's Apples? Do other primates have them? When we find new species are they due to evolution? Why do we get sleep in our eyes? We tackle these questions on this week's show. We also reveal the healthiest type of olive oil, investigate spinal surgeries and look into the rare condition of Morgellons Disease. Like this podcast? Please help us by supporting the Naked Scientists

Will gravity ever pull our moon into a collision with earth? Why are planets round? How big is the black hole at the centre of our galaxy? We solve these mysteries this week on Ask the Naked Scientists. We also find out how superglue works, investigate how it is possible to have volcanoes under the sea and reveal how our years are getting longer! Like this podcast? Please help us by supporting the Naked Scientists

How do spy satellites work? Is it true the US Military can control our GPS? How do we know the centre of the earth is so hot? How can we identify counterfeit money? We answer these questions on this week's Ask the Naked Scientists. We also investigate why venus doesn't rotate like the planets in the rest of our solar system, reveal why some technology is so reliant on remote control and we also reveal if a domino chain has the potential to go on forever! Like this podcast? Please help us by supporting the Naked Scientists

What would happen if we didn't have tides? If our moon continues moving away from us, will it affect our tides? Why doesn't tea flow out of the bag if the bag is lifted out quickly? We tackle these questions on this week's Ask the Naked Scientists, as well as find out about giant geysers on a moon of Saturn.We also investugate if chillis can be used to cure a cold, find out how people speed read and analyse the psychology behind our signatures. Like this podcast? Please help us by supporting the Naked Scientists

Can time ever stand still? could we look back in time with a telescope? Could we see and stop a meteor in space? We tackle these questions on this week's Ask the Naked Scientists. We'll also be finding ou how decaffeinated coffee is made, if guns need oxygen to fire, and why oil makes paper translucent. Plus we'll reveal how to drop bread without it landing butte-side down and how to get an egg into a bottle without breaking it! Like this podcast? Please help us by supporting the Naked Scientists

Why do sea levels vary around the world? Why are there 2 tides? What is Autism? How were the colleges of Cambridge built along the river? We answer these questions on this week's Ask the Naked Scientists. We'll also reveal how people are brainwashed,explain howdigital radios work and look into why loud music can make some people become aggressive. Like this podcast? Please help us by supporting the Naked Scientists