How many organs could you donate and remain alive? How many planet Earths could fit inside the Sun? How high is a giraffe's blood pressure? Why is the sea blue? To find out, Ask The Naked Scientists!
Latest episodes
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20 min ↗
Why won't vaseline melt in the microwave?
This week: plummeting bird populations; the global climate strike; whether blood-letting benefits high blood pressure; why vaseline won't melt in the microwave; how pilots land pla…
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21 min ↗
Why am I addicted to eating toilet paper?
Is flying a threat to glaucoma? Do blood groups affect diet? Is 5G harmful to my health? Why do cats have vertical pupils? What is candida infection and how can I treat it? Does sp…
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19 min ↗
Do wild animals snore?
Chris Smith from the Naked Scientists takes on YOUR questions. What's the link between humidity and temperature? Is cooked meat or food healthier than the raw version? Why does the…
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22 min ↗
How does a body decompose?
Chris Smith from The Naked Scientists takes on YOUR questions with Azania Mosaka from Talk Radio 702. How does a body decompose? Why doesn't the body digest spinach? How can you fi…
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21 min ↗
What is the Earth's murmur?
Chris Smith from the Naked Scientists takes on YOUR questions. Why do you sometimes see a half moon at sunrise? Why do some body hairs never go grey? Could a coin falling from the…
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20 min ↗
Are magnets a good source of electricity?
Chris Smith from the Naked Scientists takes on YOUR questions. Can you use magnets as a source of electricity? Does chemotherapy make you lose hair from other parts of your body al…
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17 min ↗
Why do birds swoop in front of cars?
Chris Smith from the Naked Scientists takes on YOUR questions. Why do men go bald on the tops of their heads first? Do we really share 50% of our DNA with bananas? Why do birds swo…
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21 min ↗
Why do some dogs recognise their reflections?
Chris Smith from the Naked Scientists takes on YOUR questions. Why do some dogs recognise themselves in the mirror, or recognise other dogs on TV, while others don't? Why is the sk…
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26 min ↗
Is the Moon a piece of planet Earth?
This week, on its 50th Anniversary, Dr Chris reflects on the Apollo 11 Moon landings, explores the basis of Bell's Palsy, explains the origins of an itch, and asks if wheat is bad…
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20 min ↗
Are we really related to Neanderthals?
Chris Smith from the Naked Scientists takes on YOUR questions. Why might someone with diabetes lose a limb? How can you predict a dangerous solar flare? Are humans really related t…
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24 min ↗
Can local honey cure hay fever?
Chris Smith from The Naked Scientists takes on YOUR questions on Cape Talk. Do we need an appendix? How does the Sun burn when there's no oxygen in space? How much water is lost in…
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19 min ↗
Why do humans have cannabis receptors?
Why do flies exist? Could sound propel a spaceship? Why do humans have receptors for tetrahydrocannabinol in their brains? How do cars calculate their fuel consumption? And is all…
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23 min ↗
Do microwaves damage food?
Why do Achilles tendons snap, and can they be strengthened? Are gingers disappearing? Why does crying make your voice shake? Why can't we accurately predict the weather? Do microwa…
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22 min ↗
Why does alcohol make me dizzy?
This week we discuss the Naked Scientists experiment to test a scream in space, explain why some people sneeze so loudly, ask where standard weights and measures came from, hear wh…
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25 min ↗
Why do we hum?
Chris Smith from The Naked Scientists takes on YOUR questions. Can contact eyes make your eyes better than perfect vision? How intense can deja-vu be? Why do we hum? Why are there…
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20 min ↗
Why does water bubble when it boils?
Join Africa Melane and Dr Chris for this week's round-up of science questions from the South African Cape, including why we can open the doors of a helicopter but not a passenger p…
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21 min ↗
Why do bright lights trigger sneezes?
Chris Smith from The Naked Scientists takes on YOUR questions with Eusebius McKasier from talk radio 702. Could gravity from my first-floor apartment impact my sleep patterm? Why d…
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19 min ↗
Do anti-ageing creams really work?
For CapeTalk this week, Dr Chris explains what causes stomach butterflies, whether honey is healthier than sugar, why fog lifts, how to keep your memory in tip top condition, how m…
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20 min ↗
Why do we blush?
Chris Smith from The Naked Scientists takes on YOUR questions with Eusebius McKasier from Talk Radio 702. Would a brain transplant keep someone's memories? Why do we blush? Is it b…
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21 min ↗
Were early humans vegetarians?
Chris Smith answers YOUR questions with Pippa Hudson.... Why does temperature change food flavour? Does the full moon impact the human body? Why do car wheels move in reverse in fi…