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PODCAST

Ask The Naked Scientists SA

Naked Scientists

Why scratch your head if you don"t know the answer? What about the Earth made the dinosaurs so big? Why does the Universe spin? Is the Sun seem brighter in the morning than the evening? Are autistic people particularly at home with computers? Why do effervescent tablets fizz only in water? Why do Parkinson"s patients sleepwalk without difficulty? Plus, news of a decoy molecule that can treat dwarfism and what earwax has revealed about blue whales...

science

All Episodes

27:48

What is time?

Ask The Naked Scientists SA ·

2022/07/08

What's better to injest after antibiotics treatment, yoghurt or probiotics? What makes milk and snow so white? Why does being exposed to cold water make one breathe so heavily? Is time really a human construct? This and more are the subject of Lester and Chris' weekly science QnA session... Like this podcast? Please help us by supporting the Naked Scientists

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23:17

Do we sneeze in our sleep?

Ask The Naked Scientists SA ·

2022/07/01

Why chainsaw's blunt over time, planet rotation, Star Trek's on the money with scientific accuracy, mathematical conundrums, sneezing in your sleep, the kinetic energy of a sneeze and our perception of flavour. Lester and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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25:18

Counting all the stars in the known universe

Ask The Naked Scientists SA ·

2022/06/24

Consumption of energy in the brain; the role of my adam's apple; seed anatomy; why there are so many planets; body components that suck oxygen from the air; NASA predicts the number of stars in our universe; why do flowers bloom in spring; measuring the milky way; the chemical properties of bromine; pursuing the origns of life; if the moon isn't cheese, what is it made of? Dr Chris Smith joins 567 Cape Talk's Lester Kiewit to talk the answers through... Like this podcast? Please help us by

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24:40

Drinking alcohol as you soak?

Ask The Naked Scientists SA ·

2022/06/17

Soap on the bathroom mirror with a hot shower running; sedatives acting unusually; coffee reduces tiredness but also provides a lick of energy; does a glass of sherry warm you up on a cold night; how do you contract shingles; asian flush; water density experiment for you to try at home; is the conflict in Ukraine speeding up climate change. Dr Chris Smith joins 567 Cape Talk's Lester Kiewit to talk the answers through... Like this podcast? Please help us by supporting the Naked Scientists

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26:26

DNA fingerprints after an arm transplant!

Ask The Naked Scientists SA ·

2022/06/03

The Platinum Jubilee; aerodynamics and physics of tailgating vehicles; why planets and the moon are all in the same orbital plane; how ants lead their nest-mates to a food source; animal extinction; how light can reveal what something is made of; do transplant recipients inherit genetic diseases from their donors; and would someone with an arm transplant leave a different DNA fingerprint with their new hand? Dr Chris Smith joins 567 Cape Talk's Lester Kiewit to talk the answers through... Like this

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27:47

Why do boats have round portholes?

Ask The Naked Scientists SA ·

2022/05/20

Shortages of cooking oil, risks of being hit by lightning and can lightning travel through your plumbing; why boats have round portholes; what's the memory capacity of a human brain; can we measure happiness; do animals feel happy and sad like we do; what gives farts their unique characteristics, and why do stars twinkle? Lester and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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24:27

Why doesn't our own snoring wake us up?

Ask The Naked Scientists SA ·

2022/05/02

Why do some animals sleep standing up? And do fish sleep? Why are elderly voices higher pitched than younger voices? Why does the outside temperature drop just before the sunrise? Why do I feel pain in my ears during a plane takeoff, and why does chewing gum help? Do cats and dogs recognise their siblings? Why is yawning contagious? Do dogs get depressed? And why doesn't our own snoring wake us up? Dr Chris and Abongile Nzelenzele have the answers... Like this podcast? Please help us by supporting

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27:12

How are some children geniuses?

Ask The Naked Scientists SA ·

2022/04/08

Can trees produce more than 1 type of fruit? Why do some flowers only have a scent at night? What makes fruit taste sweet? How does the Google search engine work? How do motorcycle tyres grip the road? How are some children geniuses? What is myasthenia gravis? What's the difference between a sickness, a disease, an illness, an affliction, a malaise and a disorder? How does reverse swing work on a cricket ball? And how do tides work? Dr Chris Smith and Lester Kiewit have the answers... Like this

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20:33

Will a cold onion make me cry less?

Ask The Naked Scientists SA ·

2022/04/04

Why are humans still born with bits we don't need - will evolution do away with them? Did an onion make me cry less because it was cold from the fridge? Do animals get diabetes like humans do? What is the physics of a rainbow? Where does lightning come from? What did cloning Dolly the Sheep mean for me? And is Covid-19 nature redressing the balance? Dr Chris Smith and Relebogile Mabotja have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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25:34

Smoking causes cancer but cures salmon?!

Ask The Naked Scientists SA ·

2022/03/18

Nominative determinism; can cold showers ward off coughs and flu; what's von Willebrand's Disease; if smoking causes cancer how does it cure salmon; why can some people roll their tongues; what's "Agent Orange"; in television, how does a green screen work; do crocodiles age more slowly than we do; what is Helicobacter pylori? Chris and Lester have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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29:56

Blessed Algorithms

Ask The Naked Scientists SA ·

2022/03/14

We have Alexa, we have drones in the sky, killer robots on the battlefield and creepy algorithms designed to anticipate our every need. But do we lose sight of the potential benefits of A.I? Beth Singler and Hope McGovern throw some light on a much discussed subject... Like this podcast? Please help us by supporting the Naked Scientists

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19:54

Full tank or better to drive about half full?

Ask The Naked Scientists SA ·

2022/03/11

Is it better to keep the tank topped up to full, or should I drive around on half empty: what's better for my car and fuel consumption? Why might althletes take an ice bath after exercise? If I go out with wet hair, will I really catch a cold, or is that a myth? Do babies sleep better in a cooler room? What's the difference between an electrical blackout and a brownout? Is the expensive face cream better than the cheaper one? Lester Kiewit and Dr Chris have the answers... Like this podcast? Please

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18:57

If identical twins marry identical twins...

Ask The Naked Scientists SA ·

2022/03/01

What happens, genetically, when a black and a white human partner have children? And if a pair of genetically identical twins marries another pair of identical twins, are their kids genetically brothers and sisters? Do birds have ears? And if you lose one of your special senses, do other senses strengthen to compensate? What's the reason for human handedness? And does a blood transfusion recipient carry the genes of the blood donor? Dr Chris has the answers... Like this podcast? Please help us by

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17:08

Are my feet ageing faster than my face?

Ask The Naked Scientists SA ·

2022/02/20

Why does my kiddie object to wearing shoes? What is spacetime and how does time dilation work? What is entanglement, otherwise known as spooky action at a distance? Are my feet ageing faster than my head? When a person dies, does their energy pass into their offspring? How does hyperloop technology work? Relebogile Mabotja and Dr Chris Smith have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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15:04

Dark side of the moon for the James Webb?

Ask The Naked Scientists SA ·

2022/02/07

How does the James Webb Space Telescope work, and what will it reveal to us? How do spring and neap tides work, and what determines the times of tides? What causes hot flushes and night sweats? And why park the James Webb Space Telescope out in space - why not on the dark side of the moon? Lester Kiewit and Dr Chris Smith are back in action! Like this podcast? Please help us by supporting the Naked Scientists

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23:31

What's the best shaped ice cube?

Ask The Naked Scientists SA ·

2022/01/14

What's the best shaped ice cube, the study suggesting a pan-coronavirus vaccine might be on the cards, why a temperature of 30 degrees C feels hot despite being below human body temperature, what effect have wars had on human population, where has the flu gone to in recent wnters? Join Dr Chris to find out! Like this podcast? Please help us by supporting the Naked Scientists

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26:53

Why do I think I look different in photos?

Ask The Naked Scientists SA ·

2021/12/24

Why cockroaches invariably are found dead on their backs; what happens to old and previous Covid-19 variants; why do I see myself differently in photographs compared with when I look in the mirror; how do chickens produce eggs; what powers deep space probes; why do some people snore, especially after a few drinks; and why is yawning contagious? Dr Chris Smith and Lester Kiewit have the solutions! Like this podcast? Please help us by supporting the Naked Scientists

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27:16

Why does everything taste rotten after Covid?

Ask The Naked Scientists SA ·

2021/12/17

Why, after a dose of Covid-19, am I left with a new taste sensation resembling rotten onions? Why does bleached hair look blond, not white, and does salt water decolour the hair of surfers? How do I get rid of unwanted facial hair? Why is the hole my dog digs bigger than the dirt or sand that came out of it!? Why do mosquitoes prefer me to my wife? Does lighting a match do away with the smell of poo? Dr Chris and Lester Kiewit have the answers... Like this podcast? Please help us by supporting the

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27:01

Can memories be artificially implanted?

Ask The Naked Scientists SA ·

2021/12/04

What boils fastest, a glass or plastic kettle? Do animals adapt to their surroundings? Why do I feel sleepy when I take a trip to the coast? What's an itch? Why can I hear my husband snoring, but not me doing it myself? Can we artificially insert memories into the brain? Why do the colour of the sea vary in different locations? Why is entropy not a force? What is in it for a virus? Like this podcast? Please help us by supporting the Naked Scientists

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29:03

Is Google Maps harming my sense of direction?

Ask The Naked Scientists SA ·

2021/11/20

This week, what's the bottom line on sanitising surfaces against Covid-19? Why, wonders Lester, am I so sluggish for the first few hours of the day? And can you train your chronotype to be a better morning person? Does it make a difference if you sleep on your left or your right? Why is gambling addictive and is addiction a genetic trait? Can pornography be addictive? And will resorting to apps like Google Maps impact my sense of direction? Join Dr Chris Smith and Lester Kiewit for the answers..

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161 results

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