Ask The Naked Scientists

Chris Smith joins Eusebius McKaiser to answer your science questions...

Why doesn't my own snoring wake me up? Why is there always room for dessert?

Why are rainbows perfect arches? Why have spiders never evolved wings?

Do food additives cause cancer? How do we get different eye and hair colours?

Did dinosaur blood survive for 65 million years? Is astrology scientific?

Why don't I sneeze during the night? What causes me to cry all the time? How do shark repellents work?

How can you reduce pain after surgery? Why do thick fluids wobble when poured?

Are there any organs that can't get cancer? Why don't birds fall from the sky?

Can an HIV-negative person transmit HIV? Should I complete a course of antibiotics?

Can I donate an organ if it was already donated to me? Why do I sweat asymmetrically?

Can we treat eczema? What is the difference between consciousness and intelligence?

How do our bodies digest all the different things inside us? What is a phantom pregnancy?

Why are yawns contagious? How did butter come about? What’s the limit of our brain capacity?

Why don't teeth grow back? Why are feathers more colourful than fur? and how do racing pigeons navigate home?

How does GPS work? What causes nosebleeds?

How can I remove salt from seawater? Why do I jolt awake sometimes when I sleep?

How does a tortoise control its temperature? Why do we find puppies cute?

Can people who are born blind dream? How do I explain infinity?

Where has the rubber from your worn out tyres gone? And can science save us from tornadoes?

What would happen to someone born on Mars?

And why is farting so funny?

How does aspirin help with a headache? Does microwaving your food affect its nutritional content? What happens to eye...

Will bottled water grow algae? If you toast bread will it keep its nutritional value?

Why don't I have fingerprints? How do energy drinks affect your body? What makes a person left handed?