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PODCAST

Naked Scientists Special Editions, iTunesU

Special feature podcasts produced by the Naked Scientists team, iTunesU

science & medicine natural sciences

All Episodes

05:06

19.09.05 - Are phone masts going to get larger?

Naked Scientists Special Editions, iTunesU ·

2019/09/04

Mobile phone companies could be set to erect bigger and taller phone masts as part of government plans to roll out 5G networks and improve coverage in rural areas. How might taller masts help with connectivity - and what is 5G anyway? Tech-xpert and Angel Investor Peter Cowley explains to Chris Smith and Katie Haylor...

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03:22

19.08.21 - Antimicrobial resistance and future plastics

Naked Scientists Special Editions, iTunesU ·

2019/08/20

Bacteria are becoming increasingly resistant to many of the agents we use to deal with them, including antiseptics. The bacterium Acinetobacter baumannii is one example and causes hard to treat skin, chest, and urine infections in hospitals. Now, a team at the University of Newcastle, Australia have discovered a gene that renders Acinetobacter resistant to the chemical chlorhexidine that's used in hand disinfectants. But the gene evolved long before the antiseptic was invented, so what was it doing

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05:41

19.08.02 - Stronger earthquakes from oilfield wastewater

Naked Scientists Special Editions, iTunesU ·

2019/08/01

A research team from Virginia Tech, led by Ryan Pollyea, has found that earthquakes 8 kilometres below the earth's surface are increasing in intensity. Published in the journal Nature Communications, the team's work has found that a super-dense liquid called oilfield wastewater is seeping deep into the sheets of the earth, causing massive pressure changes that could be increasing earthquake intensity. Matthew Hall got into contact with Ryan Pollyea and Martin Chapman from Virginia Tech to see what

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03:59

19.07.29 - The science behind heatwaves

Naked Scientists Special Editions, iTunesU ·

2019/07/28

A heatwave has been sweeping across Europe recently, causing record temperatures across the continent and creating a lot of consternation in the Naked Scientist office. But where do heatwaves come from. And what's going to happen in the future. Adam Murphy spoke to Manoj Joshi, professor of climate dynamics from the University of East Anglia, starting with what a heatwave even is...

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04:43

19.07.26 - Decoding the Minimal Genome

Naked Scientists Special Editions, iTunesU ·

2019/07/25

Your genome contains all of your genetic information, and it's pretty long - the Human Genome Project estimated that humans have between 20,000 and 25,000 genes. But according to synthetic biology, you can survive on only 473! At least a very simple bacterium can. Of this "minimal genome", scientists previously didn't know what nearly a third actually did. But now Mark Wass has been telling Heather Jameson how his team at the University of Kent may have cracked 66 of the mystery genes...

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03:27

19.07.24 - The Largest Seaweed Bloom on Earth

Naked Scientists Special Editions, iTunesU ·

2019/07/23

The world's largest patch of seaweed appears every summer in the mid-Atlantic. Since 2011, the Great Atlantic Sargassum Belt has been growing to monstrous sizes - thousands of kilometres long - and it's been clogging up beaches along the Americas with metres of stinking brown sludge. Now, scientists in Florida and George have used satellite tracking to figure out what's going on - as Phil Sansom explains...

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04:27

19.07.23 - The nervous system of worms

Naked Scientists Special Editions, iTunesU ·

2019/07/22

The nervous system is a complicated network of specialized cells, called neurons, that allow the transfer of information from one part of our body to another. To help our understanding of the nervous system in humans, scientists have been mapping the connections between neurons in a type of round worm, called C Elegans. C Elegans are so small that they are barely visible by the naked eye. So to obtain images of the worm, a special microscope, called an electron microscope is used. They take images

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06:09

19.07.19 - Oumuamua is alien technology no mua-more

Naked Scientists Special Editions, iTunesU ·

2019/07/18

You might remember from a year or so ago stories of an alien fly-by. The unidentified object was famously referred to as Oumuamua, which means "scout" in Hawaiian. Now a paper just out in the journal Nature Astronomy has revisited the story to probe whether Oumuamua really is alien technology, or just a cigar-shaped hunk of rock hurtling through the solar system. Matthew Hall got in touch with co-author Dr. Alan Fitzsimmons from Queens University Belfast...

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06:22

19.07.03 - Extremely Fast: The Future of Electric Racing

Naked Scientists Special Editions, iTunesU ·

2019/07/02

In June, Izzie Clarke explored the extremely fast science of speed and headed to the race tracks with McLaren in their 600LT Spider supercar. But whilst Formula 1 and petrol racing have a huge fan base, we're also seeing the rise of electric racing, Formula E. In this bonus interview, Izzie spoke with Rodi Basso, Motorsport Director of Mclaren Applied Technologies, about the future of the sport.

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04:30

19.06.28 - Making crops more light sensitive

Naked Scientists Special Editions, iTunesU ·

2019/06/27

With a rising global population, and the impending impacts of climate change, we need more food, and reliable food sources safeguarded for the future. But varying light levels mean that plant growing conditions aren't always consistent, as Katie Haylor has been finding out...

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04:48

19.06.27 - Boaty McBoatface and the Antarctic mystery

Naked Scientists Special Editions, iTunesU ·

2019/06/26

In March 2016 the public voted to name a new polar research vessel "Boaty McBoatface", ultimately though, it was decided that "RRS Sir David Attenborough" was a more fitting choice. But the name "Boaty McBoatface" lived on and was instead given to one of the ship's autonomous submarine vehicles. Now, data from Boaty's first research mission in Antarctica has revealed a worrying new mechanism related to rising sea levels. Boaty has discovered that winds above the southern ocean, which have been

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04:54

19.06.26 - Smarter, safer robots

Naked Scientists Special Editions, iTunesU ·

2019/06/25

Robots are increasingly used to take over repetitive tasks in industry and agriculture, but they are still limited in what they can do. This also means that humans still need to work alongside them and often things can go badly wrong. 13000 injuries and 60 deaths were caused by accidents due to contact with machinery between 2014-18 in the UK alone. Engineers are working on ways to make robots safer, cheaper and more efficient. Ankita Anirban speaks to Matthias Althoff from the Technische Universitt

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05:48

19.06.25 - Fish: a small world after all

Naked Scientists Special Editions, iTunesU ·

2019/06/24

The world is facing a global fish issue - a fissue, if you will. One third of all fish stocks are being overfished, and most of the efforts to prevent this involve exclusive zones in the ocean managed by individual countries. But a study released this week shows how the world's fisheries are all closely connected in a "small-world" network, and how overfishing in one zone can affect all of its neighbours. Izzie Clarke spoke with James Rising from the London School of Economics to find out how.

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05:06

19.06.24 - Asthma: mapping the human lung

Naked Scientists Special Editions, iTunesU ·

2019/06/23

The chest disease asthma is becoming more common. It can lead to life-threatening breathing difficulties when the airways constrict and the lung tissue overproduces mucus; this is usually an allergic reaction that can be worsened by air pollution. But our understanding of what's going on in an asthmatic lung is still quite limited. But now for the first time, scientists at the Sanger Institute near Cambridge have used a new technique to document and examine every cell in lung samples from both

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05:16

19.06.21 - Cracking the secret of Antarctic ice holes

Naked Scientists Special Editions, iTunesU ·

2019/06/21

Holes in the Antarctic sea ice have been forming for decades, and are a mystery to science

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04:49

19.06.21 - Pitch perception - a special skill?

Naked Scientists Special Editions, iTunesU ·

2019/06/20

When it comes to understanding how the brain functions, scientists have done a great deal of work on studying macaque monkeys, our evolutionary relative. We share 93% of our DNA and in a lot of ways, our brains are very similar. Even for high level operations such as learning, memory and decision-making, our brains work in comparable ways.. However, when it comes to sound, scientists have discovered that humans seem to have a unique edge in how we perceive pitch. Ankita Anirban spoke to Bevil

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04:28

19.06.20 - Recyclable crisp packets using nanotechnology

Naked Scientists Special Editions, iTunesU ·

2019/06/19

At the end of 2018, Walkers launched their own recycling scheme for crisp packets after more than 300,000 people signed an online petition demanding that they change to a fully recyclable material for their packaging. Crisp packets are made from plastic and coated with a thin layer of metal. The metal layer is essential to prolong the shelf life of the food by providing a barrier to oxygen and water, but it makes the packets very difficult to recycle. Aiming to tackle this problem is Dermot O'Hare

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04:29

19.06.12 - Higher fatal flu risk for CRISPR twins

Naked Scientists Special Editions, iTunesU ·

2019/06/11

CRISPR stands for clustered regularly interspaced short palindromic repeats. Long name, but easy to picture: the sequence is synonymous to a word processor for a book, the book being DNA, which allows scientists to not only read the book, but to also edit a specific 'passage' of the book. Using CRISPR technology, DNA edits were performed on female twin embryos by Chinese scientist Jiankui He, who has since lost his standing in the scientific community. Xinzhu Wei Rasmus Nielsen, from the University

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05:14

19.06.11 - How to mend a broken heart

Naked Scientists Special Editions, iTunesU ·

2019/06/10

Around 1.4 million people alive in the UK today have survived a heart attack, but survivors can suffer from debilitating heart failure, because the heart is damaged during the attack. Ten years ago The Naked Scientists spoke to Sian Harding from Imperial College London about some promising new "heart patches" that could be grown in the lab. Ten years on, production is more reliable and plentiful, and it's hoped that safety trials on humans could begin within the next couple of years. Heather Jameson

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04:36

19.06.10 - An antibiotic made from metal

Naked Scientists Special Editions, iTunesU ·

2019/06/09

Antibiotic resistance occurs when bacteria evolve to sidestep the drugs we use to kill them. With resistance rising, we could be facing an "antibiotic apocalypse", where even trivial infections become untreatable. What's worse, almost no new antibiotics are being developed by the major pharmaceutical companies. Now, though, Kirsty Smitten has uncovered a new option based on the heavy metal ruthenium. It can destroy antibiotic resistant bacteria, including those known as gram negatives, traditionally

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120 results

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