How do planes fly upside down? Why do sheep eat so much grass? What is outside of the universe? How does hypnotism work? What does anaesthetic do? Why don't the colour stripes in toothpaste mix? Why don't we keep primates as pets? What is the cold shiver? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Why are bad habits so hard to drop? Are we in a new industrial revolution? Why don't islands have snakes? How do drugs know where to go? Would fireworks work on Mars? Which foods cause inflammation? Why can't we harness power from. The Earth's magnetic field? How does sepsis get into the body? Should you avoid steroids? Do masks affect learning development in children? Dr Chris and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Why is Pluto not considered a planet anymore? What is the possibility of there being more than one universe? Why do birds not get electrocuted when they stand on electrical wires? Is the universe finite or infinite? If it is finite, what is it expanding into? What is the actual measurement of a lightyear? How do meteors form? Why do birds fly in formation? Like this podcast? Please help us by supporting the Naked Scientists

What's the difference between mist and fog? Would 1 kilometre on our orbit make the difference between life and death on Earth? How do washing powders get clothes clean? How does sunlight and seawater lighten hair? How deafening was the Big Bang? Will rainwater wash clothes better than tapwater? Why does water issuing from a tap when you first turn it on, look white with tiny bubbles? Why doesn't Super Glue go hard in the tube? Are gravitational waves audible? Like this podcast? Please help us by supporting the Naked Scientists

What is the difference between 93 and 95 octane petrol? Why is the sea salty? What is at the end of the universe? How can we cure epilepsy? Like this podcast? Please help us by supporting the Naked Scientists

Could we slow down light to see backwards in time? Why does the moon appear not to rotate? Why don't some melting icebergs lead to sea level rise? What are the problems with Newtonian physics? Do acupuncture and fish therapy work? Are supplements a scam? How did our solar system form? Does light therapy work? Lester Kiewit and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Did the Earth just have its shortest day ever? Should we ever stop feeling pain? Why are different areas of hair on our body different colours? Is your car's speedometer correct? Are orcas evil? Why don't woodpeckers get brain damage? How do pigeons navigate? Lester Kiewit and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists

How do we know that white light contains every colour? Why does time only move forward? Why aren't birds electrocuted by power lines? How do aeroplanes manage to stay airbourne? Why can't different species reproduce? How do X-Rays work? Why do antibiotics work against bacteria, but not viruses? Lester Kiewit and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Can the James Webb telescope see the origins of the universe? Does freezing your jeans remove stains and preserve the colour? Why is AM frequency affected by power lines? This and more are the subject of Lester and Chris' weekly science QnA session... Like this podcast? Please help us by supporting the Naked Scientists

What's better to injest after antibiotics treatment, yoghurt or probiotics? What makes milk and snow so white? Why does being exposed to cold water make one breathe so heavily? Is time really a human construct? This and more are the subject of Lester and Chris' weekly science QnA session... Like this podcast? Please help us by supporting the Naked Scientists