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Descubre un mundo infinito de historias

Escucha y lee

BBC World Service


The news you know, the science you don’t. Unexpected Elements looks beyond everyday narratives to discover a goldmine of scientific stories and connections from around the globe. From Afronauts, to why we argue, to a deep dive on animal lifespans: see the world in a new way.


Unexpected Elements

The end of Australian soap opera Neighbours has us wondering why a television series ending makes us sad. Also, what does science say about how to engage with screens while still protecting your vision?

Also on the show, visual ecologist Daniel Hanley has created a camera to help us visualize the world animals see, and why are there green birds, green insects, but no green mammals?

All that plus more Unexpected Elements.

Presenter: Marnie Chesterton
Producers: Margaret Sessa-Hawkins, Alice Lipscombe-Southwell, and Ella Hubber

Why are we sad when television series end?

Over the Christmas season, it is estimated that some 3.6 million families in Japan will tuck into KFC over Christmas (other fried chicken is available), which inspired the Unexpected Elements team to chew over all things chicken! 

First, we discover that chicken may never have become domesticated if it wasn’t for rice farming. We also ponder whether the chicken or the egg came first. Next, we find out that humans are surprisingly smart at translating chicken chatter. 

We are by Dr Jingmai O’Connor, associate curator of fossil reptiles at the Field Museum of Natural History, who reveals more about the links between dinosaurs and birds. 

Plus, how Brazil became a poultry superpower, and what happens to chickens in tornadoes.

Presenter: Marnie Chesterton, with Camilla Mota and Godfred Boafo
Producers: Alice Lipscombe-Southwell, with Sophie Ormiston, Ella Hubber and Robbie Wojciechowski

Chicken, with a side order of science

A teddy bear launched into the upper atmosphere as part of a school science project has gone missing! Inspired by this story, the Unexpected Elements team look into how bears could help improve astronauts’ health on long-term space flights. Next, how has a US Air Force site delivered an unexpected conservation win for an endangered species?

We’re then joined by Justin Gregg, a professor of animal behaviour and cognition. He reveals why we anthropomorphise cuddly toys – such as teddy bears – and why this isn’t necessarily a bad thing. 

We meet Alan Turing’s teddy bear, before finding out why it’s good to get lost.

All that, plus many more Unexpected Elements. 

Presenter: Marnie Chesterton, with Andrada Fiscutean and Chhavi Sachdev
Producers: Margaret Sessa-Hawkins, with Alice Lipscombe-Southwell, Alice McKee and Robbie Wojciechowski

Some bear-y interesting space science

The Portrait of Elisabeth Lederer by Gustav Klimt has recently sold for $236m, making it the second-most expensive artwork ever sold at auction. 

Inspired by this headline, the Unexpected Elements team delve into the story of how microbiology may have influenced Klimt’s work.

Speaking of microbiology, we find out that bacteria could help restore frescoes to their former glory. 

We also get on the line with Dr Siyakha Mguni, an archaeologist and senior lecturer at the University of Cape Town, who tells us about ancient artworks far older than anything Klimt ever painted. 

Plus, the world’s biggest spider’s web, and why mosquitoes are impressive 3D printers. 

All that, plus many more Unexpected Elements.

Presenter: Marnie Chesterton, with Andrada Fiscutean and Edd Gent
Producers: Alice Lipscombe-Southwell, with Margaret Sessa Hawkins, Alice McKee, Lucy Davies and Robbie Wojciechowski

The unexpected science behind Klimt's artwork

The Miss Universe pageant final has us considering the science of beauty. How much of our perception of beauty is genetic, and how much is down to personal experiences? We also look at the science behind competitions and the audience effect. Why do we sometimes perform better when we’re watched?

Also on the show, Oxford professor Marcus du Sautoy explains why maths can be beautiful, and former Miss Universe Ireland and NASA datanaut Fig O’Reilly talks about balancing pageants and a career in science outreach. 

Plus, the science behind death metal singing, why civet coffee tastes so good, and how ugly plants inflame allergies, on this week’s Unexpected Elements. 

Presenter: Caroline Steel, with Katie Silver and Sandy Ong
Producers: Margaret Sessa-Hawkins with Alice Lipscombe-Southwell, Lucy Davies, Robbie Wojciechowski and Alice McKee

Some Beautiful Science

A 150-year-old bottle of Arctic Ale is being uncapped, which got the team talking about all things related to yeast, beer, and opening things. 

First, we hear about a rare condition where the body brews its own alcohol. Next up, we find out that small amounts of alcohol make male fruit flies more attractive. 

We’re then joined in the studio by food historian Pen Vogler, who helps us travel back in time to explore beer’s origins. 

Next, we discover how air pollution is affecting our brains, and delve into some surprising ways that yeast could help the climate. 

All that, plus many more Unexpected Elements. 

Presenter: Marnie Chesterton, with Chhavi Sachdev and Candice Bailey
Producers: Alice Lipscombe-Southwell, with Lucy Davies and Robbie Wojciechowski

A keg of beer-based science

As rescue and relief efforts in the Caribbean are ongoing after Hurricane Melissa, Unexpected Elements looks at the science of storms. 

We explore how AI might help us better predict the weather patterns, and whether it could act as an early warning signal to help us prepare for natural disasters, and we look at what a sinkhole off the Coast of Belize has helped reveal about 6000 years of storm history in the Caribbean. 

Giles Harrison, Professor of Atmospheric Physics at Reading University helps explain the unexpected link between bees and storm clouds. We also investigate whether storms with female names are more deadly, your letters have us contemplating banana varieties, and whether wind turbines could ever have an effect on the breeze.

Presenter: Alex Lathbridge, with Andrada Fiscutean and Leonie Joubert
Producers: Margaret Sessa-Hawkins with Eliane Glaser, Minnie Harrop, and Lucy Davies

A storm of science

The daylight robbery of precious crown jewels from the Louvre museum in Paris has us stealing your attention to inspect heists and crime scenes in science.

We explore how stealthy spiders use tricks and deceit to rob precious prey from one another, and we look at how seagulls and other birds have the advantage when it comes to stealing food from humans. We also learn how our immunological security systems try to prevent bacteria from doing an iron-heist from our cells and blood.

But what about figuring out whodunnit? Forensic ecologist and palynologist Professor Patricia Wiltshire shares how pollen can be instrumental when solving crimes and how thorough, detailed forensic work can help uncover the truth when unravelling mysteries.

We also hear about the tensions between elephants and humans in Kenya, why we prefer the taste of certain foods, and how the code to a famous puzzle-filled sculpture might have finally been cracked. 

All that, plus many more Unexpected Elements.

Presenter: Marnie Chesterton, with Phillys Mwatee and Kai Kupferschmidt
Producers: Imaan Moin, with Lucy Davies, Eliane Glaser and Robbie Wojciechowski

A science heist

Europe has a new entry/exit system based on biometric data. But what exactly is the science behind biometric data, how can we ensure it’s used responsibly, and can it be cracked?

We also look at how some animals use dung as biometric data with Dr. Adrian Shrader, how your walk can be used to ID you from Professor Mark Nixon, and why gold has its own special measurement. All that plus many more Unexpected Elements.

Presenter: Marnie Chesterton
Producers: Margaret Sessa-Hawkins with Lucy Davies and Robbie Wojciechowski

How does biometric data work?

Record high gold prices have us looking at the science of inflation, why gold is leaking from volcanoes, and entomologist Katy Prudic explains why shiny gold can be a good color for camouflage.

Plus the dark science going on in a gold mine, whether we can move at the speed of light, and the debate around golden rice. All that, plus more unexpected elements.

Presenter: Marnie Chesterton
Producers: Alice Lipscombe-Southwell, with Margaret Sessa-Hawkins, Robbie Wojciechowski and Lucy Davies.

Why are gold prices so high?

Five years ago, people around the world were enduring COVID lockdowns as we attempted to prevent the spread of the virus. Today, many of those who caught COVID-19 are still suffering from lingering symptoms, including a loss of their sense of smell. And that got the Unexpected Elements team thinking about all things olfactory. 

First up, hold your noses as we investigate the two chemicals that make up the scent of death. 

Next, are you prone to telling lies? Well, research suggests that your nose might give you away!

We then turn our attention to the cinema to find out more about the chemicals you release during a scary film. 

We’re also joined by chemist Professor Matija Strlic, who reveals how he can detect aromas in ancient Egyptian mummies and – crucially – tells us why he wants to do this. 

That, plus many more Unexpected Elements. 

Presenters: Marnie Chesterton, with Kai Kupferschmidt and Affelia Wibisono 
Producers: Alice Lipscombe-Southwell, with William Hornbrook, Debbie Kilbride, Imaan Moin and Noa Dowling

What’s that smell?

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