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Ask the Naked Scientists

Ask the Naked Scientists

Author: Dr Chris Smith

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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!
492 Episodes
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This week we're exploring why swimming on a full stomach might cause a cramp, whether it's really true that joints ache more when the weather's cold, and why does tapping the top of a beer bottle make the drink explode? Plus, why do aeroplanes fly high if there's less oxygen for the engines and less air for lift? And why does a child's hair often darken as they age? Join Dr Chris and Kieno Kammies for this week's Ask the Naked Scientist, to find out! Like this podcast? Please help us by supporting the Naked Scientists
Are bananas sterile inside?

Are bananas sterile inside?

2019-11-0800:25:02

What are the medical risks and benefits of silver? Is what I call a smell the same experience for you? And why do some things smell appealing, but not others? Does engine oil have a best-before date? And why do metal insulin needles have a use-by date? What makes body odours attractive? Is the inside of a banana sterile? And how do scientists find the medical properties of plants? Like this podcast? Please help us by supporting the Naked Scientists
Does holding a car remote to your head really improve its range? What would happen to a bullet fired off the International Space Station? How did a marble make a hole smaller than itself in my window? Are mobile phone towers safe? Why does egg white go white when whipped? Why is colour blindness more common in men? And is toast bad for you? Join Dr Chris and Kieno Kammies for the answers to these and other cool science questions... Like this podcast? Please help us by supporting the Naked Scientists
Why is salt needed in an old-fashioned ice-cream maker? Are gravity and electromagnetism the same, and could we build a big enough electromagnet to repel the Moon? Are some stars no longer where we see them? Does salt make water boil hotter and hence will my pasta cook quicker? Why do distant lights twinkle? How does an air conditioner work? Why do my ear-buds make me cough when I insert them? What causes my microwave oven to interfere with my WiFi and Bluetooth? Is it possible to re-magnetise the magnet on the bathroom cabinet? Can we use light to propel a spacecraft? And why do we find our... Like this podcast? Please help us by supporting the Naked Scientists
Is it ethical to grow a brain organoid in a dish? What's a shooting star? Do food preservatives build up in the body? What is cancer and why is it so tricky to treat? Why doe staring at a mobile phone screen cause car sickness on a long journey? Join Dr Chris and 702's Azania Mosaka and Ask! The Naked Scientists to find out... Like this podcast? Please help us by supporting the Naked Scientists
Why does alcohol affect different people differently? What's the difference between white and brown sugar, and is the brown form healthier? Can you suffocate under a blanket? Why have only 28 days in February? Why do wind turbines have long thin blades but room fans use shorter wide blades? Does diluting alcoholic drinks affect how drunk you become? Why is some metal okay in the microwave but other metallic objects make sparks? Join Dr Chris and 567 Cape Talk's Kieno Kammies for this week's crop of questions. As they say - don't know the answer? Ask the Naked Scientists! Like this podcast? Please help us by supporting the Naked Scientists
How does the brain work?

How does the brain work?

2019-10-1000:18:39

What will phenomics do for medicine? Is the limbic system in conflict with the brain's pre-frontal cortex? How does the brain actually work? And what is consciousness? Join Dr Chris and Talk Radio 702's Azana Mosaka to "Ask! The Naked Scientists" and answer your science questions... Like this podcast? Please help us by supporting the Naked Scientists
What makes a brain creative? How do viruses, and the flu, evolve? When did ancient civilisations realise there were 365 days in a year? Has the LHC discovered new dimensions yet? Why does 2 degrees of global warming matter? Can memory be improved? Join Dr Chris and Cape Talk's Kieno Kammies as we Ask! The Naked Scientists! Like this podcast? Please help us by supporting the Naked Scientists
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 planes even though the Earth is spinning; how birds pattern their plumage; why your nose runs when you wake up; what causes morning breath, and why would a car use more fuel driving a journey on the outward leg compared with the return journey? Join Dr Chris and 567 Cape Talk's Kieno Kammies as we Ask! the Naked Scientists... Like this podcast? Please help us by supporting the Naked Scientists
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 speaking quickly actually communicate more information? Why am I addicted to eating toilet paper? Is the new 5G data network a health hazard? Join Dr Chris Smith and Talk Radio 702's Azania Mosaka as they strip down your science questions... Like this podcast? Please help us by supporting the Naked Scientists
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