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PODCAST

Ask the Naked Scientists

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!

science life sciences

All Episodes

00:22:00

Do dogs dream?

Ask the Naked Scientists ·

2026/04/17

Do dogs dream? Can someone who was born blind dream? Do animals have souls? Do certain eye colours have more advantages than others in terms of sight? What is blind sight? What are growing pains? Is it unhealthy to sleep with closed windows? And what is some advice for sleepwalkers? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:22:57

What caused the craters on the Moon?

Ask the Naked Scientists ·

2026/04/10

How does the heat shield protect the Artemis II astronauts on their return to Earth? What caused the craters on the Moon? Can the materials in cooking pots cause poisoning? What is seasickness? Can space missions take place during periods of high solar activity? And what propels spacecraft? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:21:16

What colour is a mirror?

Ask the Naked Scientists ·

2026/03/28

Why some people can't say their Rs; why is perception of time so context dependent; what's the nutritional value of long life milk; what determines how tall we are; why do some mirrors make you look a strange shape; why to take care with magnesium supplements to avoid explosive diarrhoea; how can fish swap between fresh and salt water environments; and why doesn't the stomach digest itself? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked

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00:23:47

Do we all see colours the same way?

Ask the Naked Scientists ·

2026/03/13

On this week's show, why dogs don't live as long as humans. Also, why do we feel cold when our skin is warm to the touch? Do we all see colours the same way? Do animals experience embarrassment? If photons head towards two small slits, do they only pass through one slit or both? Why does the Middle East have an abundance of oil? And why are our taste buds affected when we have a fever? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked

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00:22:03

Can white skin transplanted to a black person change...

Ask the Naked Scientists ·

2026/03/06

This week Clarence Ford and Dr Chris discuss NASA's DART mission to defect an asteroid, why we can't tickle ourselves, whether lung capacity affects the heart, if white skin transplanted to a black person changes colour, why some people are more ticklish than others, how scientists are able to read ancient DNA codes, why the sea is salty, and what triggers seizures? Like this podcast? Please help us by supporting the Naked Scientists

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00:19:52

Why do we get a falling sensation as we drift off to...

Ask the Naked Scientists ·

2026/02/27

This week, Dr Chris Smith and Sara Jayne Makwala King get to the bottom of IBS, why women living together often synchronise menstrual cycles, why we get a sudden falling sensation when dropping off to sleep sometimes, and if Earth suddenly stopped spinning, what would happen first? Also, are the faces that crop up in our dreams real people we've seen before, or has our brain created people that don't actually exist? Like this podcast? Please help us by supporting the Naked Scientists

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00:19:42

Is there an evolutionary advantage of golf?

Ask the Naked Scientists ·

2026/02/20

In this week's show, how scientists discover Russia's use of frog neurotoxin epibatidine to kill political opponent Alexei Navalny, why some people are more vulnerable to dental problems, why does a full bladder make me feel sick, how is gum disease linked to heart disease, where do the clouds surrounding Table Mountain go, and what is the evolutionary advantage of golf? Plus, can science and religion co-exist? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by

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00:24:16

What is foot-and-mouth disease?

Ask the Naked Scientists ·

2026/02/13

How did life on Earth begin? Why is glass clear when sand is opaque? What is foot-and-mouth disease? Why do some people's accents change when they emigrate? What is trigeminal neuralgia? What is decided before drug trials take place? What's the difference between colloidal silver and quantum silver? Is Lyme disease contagious? And are we gaining or losing mass on planet Earth? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked

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00:22:31

Can the brain recover from alcohol misuse?

Ask the Naked Scientists ·

2026/02/06

Do animals enjoy views like we do? Why are some elephants born without tusks? Why do some people pass out on roller coasters? Is there a cure for dizziness? Can the brain recover if you stop drinking alcohol? Why is there a difference between the way that dogs and humans metabolise food? Did hallucinogens play a role in human evolution? Is a heart murmur a side effect of an overactive thyroid? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the

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00:21:45

What is an induced coma?

Ask the Naked Scientists ·

2026/01/30

What is consciousness? What is the Nipah virus? What is an induced coma? Is there an official scale for pain? Can you think yourself better? How can you make plasma? And how do you prevent a dog's pee from turning your lawn brown? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:21:24

Which part of the brain is responsible for decisions?

Ask the Naked Scientists ·

2026/01/23

Why does a glass of water help settle a sore throat? What are the best ways to help heal a slipped disc? Which part of the brain helps us make decisions? What causes stuttering in speech? If a fly is travelling in a fast car, is it travelling at the same speed as the car? And at what age is our brain fully developed? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:21:24

Which part of the brain is responsible for decisions?

Ask the Naked Scientists ·

2026/01/23

Why does a glass of water help settle a sore throat? What are the best ways to help heal a slipped disk? Which part of the brain helps us make decisions? What causes stuttering in speech? If a fly is travelling in a fast car, is it travelling at the same speed as the car? And at what age is our brain fully developed? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:21:24

Which part of the brain is responsible for decisions?

Ask the Naked Scientists ·

2026/01/23

Why does a glass of water help settle a sore throat? What are the best ways to help heal a slipped disk? Which part of the brain helps us make decisions? What causes stuttering in speech? If a fly is travelling in a fast car, is it travelling at the same speed as the car? And at what age is our brain fully developed? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:20:14

How do cell phones see the Northern Lights when we...

Ask the Naked Scientists ·

2026/01/18

Why does knocking your elbow unleash a distinctive "funny bone" jolt? Are we born with a sense of thirst? What are we seeing when we see things glow under ultraviolet? Why do our minds cling tightly to bad experiences? How do phones see the Northern Lights, even when we cannot? And do the planets in our solar system all move in the same direction? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:23:59

Do flames have a shadow?

Ask the Naked Scientists ·

2026/01/09

Should we pull the plug on AI? Is talent inherited? Do other mammals have prostate glands? How closely have we studied the bones of fish? If nothing sticks to Teflon, then how does it stick to the pan? Do flames cast a shadow? Can some animals see colours better than humans do? Why are our brains more efficient than AI? And why do mosquitoes buzz on arrival if they don't want to be heard? Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked

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00:20:27

How HPV vaccine and circumcision can stop cervical...

Ask the Naked Scientists ·

2025/12/19

Does a USB stick, or a mobile phone, weigh more once it's filled with data? What's the placebo effect, and how does it work? How does the human papilloma virus (HPV) cause disease, and how can the HPV vaccine and male circumcision protect you from cervical cancer and HIV? Does Cape Town face two oceans? Can Brazil nut proteins be present in semen and trigger subsequent anaphylaxis in a sexual partner? And what can we do about post-herpetic neuralgia causes by shingles (VZV)? Like this podcast

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00:15:49

Fizzy drinks after a long run?

Ask the Naked Scientists ·

2025/12/12

Today, Chris Smith tackles a whole host of health-related questions. We explore the impact of a meat-based diet, whether it's a good idea to drink fizzy pop after vigorous exercise, why we weigh less in the morning, if it's ever advisable to spend too much time talking to chatbots, and whether working from home weakens our immune systems... Like this podcast? Please help us by supporting the Naked Scientists

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00:21:20

Can our eyes pop out when we sneeze?

Ask the Naked Scientists ·

2025/12/05

This week, Chris Smith and Clarence Ford tackle the big science questions of the week, including how to perform a circumcision safely; can our eyes pop out when we sneeze; how do general anaesthetics work and do we understand consciousness; is violence inherent to society; do antibiotics kill probiotics; and what would happen to us if the world suddenly stopped spinning?! Like this podcast? Please help us by supporting the Naked Scientists

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00:17:24

Why do dogs make a beeline for underwear and smelly...

Ask the Naked Scientists ·

2025/11/28

Why do dogs make a beeline for underwear and smelly socks? Also, do we really get taller at night, why do some colours reflect and others absorb light, does our skin get thinner as we age, and what's the basis of lisps and accents? Dr Chris Smith and Amy Maciver have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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00:17:02

Are zebras black with white stripes?

Ask the Naked Scientists ·

2025/11/21

Are any people particularly susceptible to alopecia-linked hair loss? Also, what causes eczema and why does it keep recurring, why are the progeny of different species infertile, why does hair go grey but not always symmetrically, and Is asthma a risk factor for bronchitis? Plus, are zebras actually black with white stripes, or white with black stripes?! Join Dr Chris Smith and Clarence Ford to Ask the Naked Scientist... Like this podcast? Please help us by supporting the Naked Scientists

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