Ask The Naked Scientists

How do lasers work? And why is a hydrogen atom bigger than a helium one? Why is there no oxygen on other planets?

Why does time seem to go by faster as we get older? What do IQ tests really measure? How do probiotic yoghurts work? We...

Why does sugar look so different when you heat it up? How much CO2 is there in all the world's bottles of Cola?...

Do we really need 8 glasses of water a day? How does a jet engine work? Where does earwax come from? Why are some apes...

Why are moths attracted to light? How do red-leaved plants photosynthesise? Why don't hayfever sufferers become...

How does vinegar 'cook' an egg? How does Google work? Are the colours we see really real? We'll get the...

How are crisp flavours created? What makes flies so resilient? Why do some women get facial hair with age? We take on...

Is microwaved water safe? Why does a mirage form? What causes that shimmer on a hot road? We tackle all of these...

How did HIV originate? Why does anaemia occur more often in Africa? Do growing pains exist? We take on these infectious...

How do Tornadoes form? What's a daisy cutter bomb? why do we get electric shocks when leaving our cars? We take on...

Does our sense of taste change with age? How are horrid and pleasant smells decided by our brains? Is it harder to...

Why can't we tickle ourselves? Is deafness down to our genes? Can diabetes cause Eczema? How does deodorant...

Ask the Naked Scientists, South Africa! This week we're adding a new member to the Ask! family with a new show on...

What effects can underground nuclear explosions have on our land? How do antibacterial cleaners work? Could bacteria be...

Do earthquakes shift the earths axis? If the population of China jumped at once would it cause an earthquake? How much...

Could a comet shield the earth from the sun? How do planets form around stars? Why are planets spherical? What's...

Why are some Volcanic Eruptions stronger than others? Why can't aeroplanes fly around the ash in the sky? Is our...

Why does it feel hotter when the sun is out? Why can we see clouds at night? Is the sky always grey when it rains? We...

Do cats have a sixth sense? How do dogs moult? Why are some hairs longer than others? Why do women get hot flushes? We...

Why do boomerangs return? How do painkillers know where to go? Are some painkillers faster than others? Why do men have...

How does lightning strike? Should we worry about radiation from mobile phone masts?

Could the Earth cope without the Moon, how do safety matches work, what causes hiccups, why don't frosts form...

How does fuel burn in spaceships without oxygen? Why do we see sun rays from behind clouds? Why is there often a red...

Why is Jupiter round and how does it hold onto its gas, and what makes bottoms attractive?