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PODCAST

Question of the Week

Naked Scientists

Each week we set out to solve one of the world"s weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there"s a brand new question to think about for next time...

science

All Episodes

4:57

Can we harness nuclear energy without steam?

Question of the Week ·

2024/12/13

Dave writes in wanting to know whether there is any way to get nuclear energy onto the grid without heating up water to turn a steam turbine. A great question that sees James Tytko dip his toe into the uranium heated waters of nuclear engineering... Like this podcast? Please help us by supporting the Naked Scientists

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6:34

How long does it take to create a galaxy?

Question of the Week ·

2024/12/06

David wants to know, after looking at distant galaxies in the night sky, how long it took to create them. James Tytko took on the question with the help of the University of Cambridge's Public Astronomer, Matt Bothwell... Like this podcast? Please help us by supporting the Naked Scientists

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4:59

Why are plane and boat propellers in different places?

Question of the Week ·

2024/11/22

Thanks to Cambridge University's Andy Wheeler for the answer! Like this podcast? Please help us by supporting the Naked Scientists

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5:02

Are multi cancer screening tests worth the money?

Question of the Week ·

2024/11/08

Van writes in with, 'A friend is encouraging me to take a cancer screening test that screens for many different cancers. A review of one test says: "While overall it picks up 90% of stage 4 cancers, it only detects an average of 17% of stage 1 cancers. Yet it is being touted as a test that can detect cancer early." Are these tests worthwhile?' James Tytko took on the question with the help of Professor Rebecca Fitzgerald, Founding Director of the Early Detection Institute at the University of

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6:10

What is the spread of chemical isotopes on other...

Question of the Week ·

2024/10/25

Pamela wants to know whether the distribution of chemical isotopes is the same on other planets as it is on Earth. Take carbon, for example, 99% of which is carbon-12 on Earth while 1% is carbon-13? To find the answer, James Tytko asked Xander Byrne from the University of Cambridge's Institute of Astronomy... Like this podcast? Please help us by supporting the Naked Scientists

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4:37

When I scratch part of my body, why do I tingle...

Question of the Week ·

2024/10/11

Jim writes in to say, 'Sometimes when I pinch near my knee, I will feel a tingling or tickling sensation behind one of my shoulder blades. What's up with that?' James Tytko found him an answer, with help from neuroscientist Dr Mark Hoon from the NIH... Like this podcast? Please help us by supporting the Naked Scientists

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4:52

What is the shutter speed of our eyes?

Question of the Week ·

2024/09/06

When listener Suzy is taking pictures of the night sky, she makes use of longer shutter speeds to capture more light to get better images of stars. That got her thinking, do human eyes also have a shutter speed? James Tytko took up the question... Like this podcast? Please help us by supporting the Naked Scientists

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4:24

Do I need to keep taking probiotics continuously?

Question of the Week ·

2024/08/09

Christine emails in with this message: 'Does bacteria contained in probiotics become part of the microbiome; in other words can one stop taking probiotics after 30 days of taking probiotic-containing capsules?'James Tytko sought to find the answer with the help of Alex Almeida, microbiologist at the University of Cambridge. Like this podcast? Please help us by supporting the Naked Scientists

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4:28

If the Universe is expanding, what is it expanding into?

Question of the Week ·

2024/08/02

Anne writes in with this question, which James Tytko took on with the help of the University of Cambridge's Public Astronomer, Matt Bothwell... Like this podcast? Please help us by supporting the Naked Scientists

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4:27

What is the smell when it's raining?

Question of the Week ·

2024/07/26

Elizabeth with a transatlantic teaser for this question of the week: "I heard that people in the UK can't smell when it rains, but us Americans can. If I went to the United Kingdom, would I be able to smell the rain there? Would someone from the UK be able to smell rain here? What is going on?" James Tytko sought the answer with the help of Anne Jungblut from the Natural History Museum... Like this podcast? Please help us by supporting the Naked Scientists

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7:23

Are there stars outside of galaxies?

Question of the Week ·

2024/06/28

Brian has been in touch to ask whether stars can be independent of galaxies. James Tytko asked the University of Cambridge's public astronomer Matt Bothwell to help find the answer... Like this podcast? Please help us by supporting the Naked Scientists

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4:18

Why do we need to keep replacing our cells?

Question of the Week ·

2024/06/07

James Tytko answers listener John's question with the help of Professor of Cardiovascular Health, Nadia Rosenthal... Like this podcast? Please help us by supporting the Naked Scientists

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3:31

What is responsible for a coffee's foam?

Question of the Week ·

2024/05/24

Thanks to Steven Abbott for the answer! Like this podcast? Please help us by supporting the Naked Scientists

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6:09

Are the laws of physics consistent around the universe?

Question of the Week ·

2024/05/17

James Tytko asked Toby Wiseman, professor of theoretical physics at Imperial College London, to answer this question from listener Daniel... Like this podcast? Please help us by supporting the Naked Scientists

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7:18

Why does some plastic lose its flexibility over time?

Question of the Week ·

2024/05/10

Jimmie sends in this week's question, seeking an answer as to why plastic loses its flexibility. James Tytko took on the question with the help of Chemistry World's Phillip Broadwith... Like this podcast? Please help us by supporting the Naked Scientists

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3:50

How far can electrons get away from their atom?

Question of the Week ·

2024/04/12

Thanks to University of Cambridge's Ben Allanach for the answer! Like this podcast? Please help us by supporting the Naked Scientists

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3:30

Why do radiators have two sides?

Question of the Week ·

2024/03/15

Thanks to Dr John Bissell for the answer! Like this podcast? Please help us by supporting the Naked Scientists

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2:10

Do you ever run out of sperm?

Question of the Week ·

2024/03/08

Thanks to Rod Mitchell for the answer! Like this podcast? Please help us by supporting the Naked Scientists

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6:15

Why are black holes at the centre galaxies?

Question of the Week ·

2022/09/12

Listener David wrote this cosmic conumdrum into the Naked Scientists "How are black holes formed? And why are they often at the center of galaxies?" Otis Kingsman spoke to astrophysicist and author of the book "A Brief History of Black Holes", Dr Becky Smethurst... Like this podcast? Please help us by supporting the Naked Scientists

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5:00

Should I drink cola after swimming in river?

Question of the Week ·

2022/08/22

Listener Ed wrote to the Naked Scientists with this particular question. "Why is it recommended to drink cola after swimming in a river? And does it really reduce the risk of getting an upset stomach?" Otis Kingsman splashes around in the science of this river rumour with Dr John Tregoning from Imperial College London... Like this podcast? Please help us by supporting the Naked Scientists

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150 results

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