In this week's Ask the Naked Scientists Dave sates your thirst for knowledge with a look at whether frozen water is safe to drink, divides fog from mist, shakes up the world of seismology with a look at how earthquakes occur in countries like the UK, works out why some roofs remain resolutely frost-free in winter and explains how rocks from Mars turn up on Earth. Like this podcast? Please help us by supporting the Naked Scientists Like this podcast? Please help us by supporting the Naked Scientists

This week on Ask the Naked Scientists we find out how to break your bones for your own good, the truth behind the placebo effect and how your body knows when to be sensitive. Also, why some people gain weight when they have arthritis, restless legs and the importance of prostate check-ups. All that and more on this weeks 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

This week on Ask the Naked Scientists we find out why a slipped disc can't slip out, why you forget your dreams and why digital radio is behind the times - by about 4 seconds! Also, why present day physics forbids travel to the past, and how you can carry someone elses DNA without being pregnant. We tackle these questions and more on this weeks podcast. Like this podcast? Please help us by supporting the Naked Scientists Like this podcast? Please help us by supporting the Naked Scientists

This week on Ask the Naked Scientists we find out our years of sending things out into space will come back to haunt us, how some hearts produce a squeaking sound, and why when you look into the night sky you could see bright coloured stars shining down on you. We'll also be finding out just how many starts there are in our universe, why some of us get heart murmurs, how far our universe goes and whether the way we eat today is reducing our immunity. All that and more of your questions answered on this weeks Ask the Naked Scientists. Like this podcast? Please help us by supporting the Naked Scientists

This week on Ask the Naked Scientists we find out if it's possible to cry underwater, why ferocious winds can bring us to tears, how its possible to make the sea light up and why it's so difficult to get annoying songs out of your head! We also find out about the creation and effects of gravity, why some of us get constant ringing in our ears, and if there are plants living deep inside the earth. All that and more on this weeks podcast. Like this podcast? Please help us by supporting the Naked Scientists Like this podcast? Please help us by supporting the Naked Scientists

This week on Ask the Naked Scientists we find out why a beating turns us blue, what would happen in a fight between bullets and how hanging from the air is considered safe in the form of a suspension bridge. We also find out about an environmentally-friendly method of cremation, whether it's possible for humans to survive on mars and what the term horse-power actually means. All that and even more of your questions answered on this weeks podcast Like this podcast? Please help us by supporting the Naked Scientists Like this podcast? Please help us by supporting the Naked Scientists

On this weeks Ask the Naked Scientists we discuss why stinging nettles cause so much pain, why you should keep your bananas apart, and tell you about the effects and symptoms of asbestosis. We also find out which of our favourite foods were discovered in the Americas, if lightning occurs on other planets, why the new digital radios use up more electricity, and how a greenhouse works. All that and more of your questions answered on this weeks podcast. Like this podcast? Please help us by supporting the Naked Scientists Like this podcast? Please help us by supporting the Naked Scientists

This week on Ask the Naked Scientists we answer your questions on population, sonic booms and fuel. We'll be looking into the genes behind your eye colour, why planes are so noise when they go supersonic and how exactly we get our beloved petrol and diesel from its original source-crude oil. We'll also be investigating the best time to walk your dog, why the South Pole is colder than the North Pole and how a collision with our earth created our moon. All that and more of your questions answered on this week's podcast. Like this podcast? Please help us by supporting the Naked Scientists

This week on Ask the Naked Scientists we answer your questions on diet, the brain and meteors. We'll be looking into what foods can help reduce your cholesterol, if it's possible for our brains to shrink and how meteor showers work. We'll also be talking about dementia, smoking oils, how mountains are like sponges and how to recover if the fast-spreading norovirus gets into your system. All that and more of your questions answered on this special podcast from the Naked Scientists. Like this podcast? Please help us by supporting the Naked... Like this podcast? Please help us by supporting the Naked Scientists

Chris, Dave and Sue Marchant tackle your questions on the speed of light, head on collisions, heartburn and much more... Like this podcast? Please help us by supporting the Naked Scientists Like this podcast? Please help us by supporting the Naked Scientists