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Ask the Naked Scientists

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Ask the Naked Scientists · 788 episoder · Side 3 af 27

Can one black hole swallow another?
7. mar. 2025 18m

Is everywhere at the centre of the universe? How long do sweeteners stay in the digestive system, and what are the best alternatives? Can one black ho...

Why is a dog's nose always wet?
3. mar. 2025 15m

Dr Chris answers science questions from listeners to TalkRadio 702, including; How does one improve short term memory, especially following a brain in...

Is AI polluting medical literature?
21. feb. 2025 21m

Dr Chris answers the usual spectrum of science questions from listeners to CapeTalk, including; are sweeteners bad for our cardiovascular health? If a...

Could a falling bullet injure you?
14. feb. 2025 17m

Do atoms carry memory of information? What happens when dopamine circuits are interrupted? Why might you hiccup when you shave? Why do both kidneys fa...

Why do dogs age faster than humans?
7. feb. 2025 22m

In this episode of Ask! Dr Chris tells us what causes humiditiy in the air. Why are carbonated drinks bad for your teeth? Does the Naked Scientist kno...

Why are humans the only species with advanced intelligence?
31. jan. 2025 23m

Dr Chris answers more listener questions, including: How do sunflowers follow the sun? How does the body determine when you're passing wind or somethi...

How do plants know which way is up?
24. jan. 2025 18m

How can you use sticks to calculate the circumference of the Earth? Can exfoliators remove your fingerprints? How do plants know which way is up? What...

What causes ulcers?
17. jan. 2025 17m

Why do ants drown themselves? Could we power cars with electrolytes? What causes ulcers? Do metal wrist rings actually reduce pain? Should you take pr...

How do you find black holes?
10. jan. 2025 22m

Should you try to break bad habits? How do you stop a 'wandering' itch? Does climate change affect rainfall? Will you be tired if you dream of being a...

Why should you cook at different temperatures in fan ovens?
20. dec. 2024 23m

Dr Chris takes on the final batch of questions of 2024 on CapeTalk. Why does sound cause me pain? What's the difference between white and brown vinega...

What colour should I paint my garage roof?
6. dec. 2024 18m

Chris Smith answers CapeTalk listeners' questions. Including, do wind turbines affect the temperature of the ground? What is the cause of protein buil...

Why does toothpaste contain fluoride?
29. nov. 2024 21m

Dr Chris Smith takes on listener questions on South Africa's CapeTalk. Why is there a delay between live TV and radio? Do wind turbines warm the air a...

Why is sunlight so important for the body?
22. nov. 2024 18m

Why are we called The Naked Scientists? Why should you get sunlight in the morning? Why does bright light make you sneeze? Does luck have a pattern? I...

Has it been a strange year for weather?
15. nov. 2024 18m

Dr Chris Smith answers questions from the listeners of CapeTalk. Including, why are pregnant women told to take folic acid? What causes ears to itch? ...

Why do athletes spit on the ground?
8. nov. 2024 22m

Dr Chris and Clarence take on another selection of topics from across the scientific spectrum: Who were the victims of the Mount Vesuvius eruption? Ho...

What should you do if a lift cable snaps?
1. nov. 2024 21m

Do animals lower their mating standards when drunk? Why do different farts make different noises? What should you do if your lift cable snaps? Were th...

Do other animals see colour?
25. okt. 2024 19m

In this episode of Ask! The Naked Scientist, Dr Chris explains how our eyesight changes as we age, what the difference is between a brown and white eg...

Are ambidextrous people more intelligent?
18. okt. 2024 17m

Listener science questions from South Africa answered by Dr Chris this time include: Do you urinate more liquid than the alcohol you consume? Why do d...

Why do we have car headlights on during the day?
11. okt. 2024 18m

Dr Chris answers listener questions. Including, is air made up of the same proportion of stuff everywhere on Earth? What is earwax? Where is it produc...

What is the best way to get rid of hiccups?
4. okt. 2024 19m

Can you bring someone back from the dead? Can a special diet help flexibility in older people? What is the best way to get rid of hiccups? Are hovercr...

Why do fairground rides get worse as we age?
27. sep. 2024 29m

In a break from the usual format, the producers of The Naked Scientists take over from Clarence Ford to ask Dr Chris Smith some of your burning scient...

Should you wash every day?
20. sep. 2024 15m

Should you wash every day? Does washing your clothes damage them? Should you have a washcloth just for your face? Why does moving air make the tempera...

Are more male babies born after a war?
13. sep. 2024 17m

Why do some people struggle to read? Are more male babies born after a war? Are some people allergic to hot skin? Why do some men's breasts swell up? ...

Can someone's heart keep beating after death?
6. sep. 2024 14m

Why do some people grind their teeth? Can someone's heart keeping beating when they're dead? How does the brain interpret words? How do we know how lo...

How do bones heal themselves?
30. aug. 2024 18m

How much do wildfires contribute to carbon release? How do bones heal themselves? Why do weeds seem to grow faster than other plants? Why do some anim...

What should we know about monkeypox?
23. aug. 2024 22m

What is monkeypox, and how can we tackle it? Why can't you walk through walls if atoms are mostly empty space? If X-Rays are harmful, why are microwav...

Will we ever run out of helium?
16. aug. 2024 17m

Will we ever run out of helium? Will any planets in the solar system get knocked out of orbit? What causes ovulation pain? Is it wise to pop a zit? Wh...

How many cigarettes does it take to get hooked?
12. aug. 2024 16m

This week, Dr Chris and Relebongile find out how dietary salt affects the body, how loneliness and loss of a loved one can cause ill-health, what a bl...

Why do athletes perform better on the day?
2. aug. 2024 14m

Questions for Dr Chris Smith on this week's Ask! include: What are the health benefits of exercise? How do you explain deja vu? Can you be in two plac...

Do teabags carry microplastics?
26. jul. 2024 20m

Dr Chris answers a wide range of listener science questions. What is entropy and how does it reconcile with equilibrium? What happens when they put do...