

Unexpected Elements
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.
Episodes
Mentioned books

Aug 24, 2023 • 50min
The man who couldn’t lie
The podcast explores conspiracy theories and the enduring allure behind them. It also delves into the complexity of lying and its impact on brain function. The episode discusses the ongoing quest to understand the Universe and the ingenuity of Costa Rican scientists dealing with pineapple waste. Additionally, it answers a South African listener's question about evolution.

Aug 17, 2023 • 50min
Corrupted thinking and cancerous co-option
This podcast explores corruption in various contexts, including political malfeasance and online algorithms. It also delves into the concept of cancer as a corruption of the body and how cancer cells manipulate healthy cells. The podcast discusses the politicization of pre-human paleontology and the connection between human origins and nationalist identities. The hosts also touch on topics like women's football and share personal stories and listener feedback.

Aug 10, 2023 • 54min
Some of our universe is missing
This week on the show that looks for the science behind the news, Marnie Chesterton investigates mystery after mystery. Where is Yevegeny Prigozhin, the leader of the Wagner Group, and could science help to trace him? Which animals would do best at a game of hide and seek? And we hear about the time when half the stuff in the universe went missing, and how cosmologists found it again. We continue our endless quest to identify the Coolest Science in the World. This week’s contender studies the murky side of the genome – dark DNA. Plus the low-down on the indefinite doctor’s strike in Nigeria, we look behind the latest news about our warming oceans and have you ever felt someone else’s pain? You might be the 1 in 50 people known as mirror touch synaesthetes.All that plus your emails, whatsapps and even more fruit chat.Presented by Marnie Chesterton
Produced by Ben Motley, with Margaret Sessa Hawkins, Alex Mansfield, Sophie Ormiston, Katie Tomsett and Florence Thompson.

Aug 3, 2023 • 50min
The World Cup and hallucinogenic bananas
The World Cup has us looking at why women get more ACL injuries, how to avoid cracking under pressure, and why some animals play dead. Also on the program we consider the pros and cons of Artificial Intelligence in Africa, whether the continent is turning to nuclear power, and if banana skins are hallucinogenic.

Jul 27, 2023 • 50min
Password1234#Invisibility&Moonshot
As Netflix cracks down on password sharing around the world - something it once encouraged - we wondered why people like to share passwords to other things, such as phones, email accounts and logins. Passwords and encryption exist as ways of protecting us from hostile agents in most aspects of life. But timing is everything. Nature has been doing it for years of course. But climate change is upsetting some of the ecological match-ups of locks and keys, migration and feeding that have evolved over the millennia. We hear how the shifting patterns of weather and food availability is affecting cuckoos in Europe and India. Another aspect of natural subterfuge is camouflage. Whilst physicists have been trying to make optical invisibility cloaks from ingenious new "metamaterials", Marc Holderied and team have been looking at how certain moths have used metamaterial properties in the structure of their wings to effectively hide from bats. They are acoustically invisible. Could similar materials be manufactured to make, for example, sound-proof wallpaper?Also, we hear how India's Chandrayaan-3 moon mission - due to land on 23 August this year - is exciting millions of people.Presenter: Marnie Chesterton
Producer: Alex Mansfield, with Margaret Sessa-Hawkins, Ben Motley and Sophie Ormiston

Jul 20, 2023 • 50min
Barbie in Space
Unexpected Elements looks for the science behind the news, and this week the news is glittery and pink with the release of the Barbie movie.The movie has very pink aesthetic, so we get philosophical about the colour pink – does it actually exist and if so, how come it isn’t in the rainbow?We also discover how this iconic doll has performed some actual valuable science, helping cryogenic researchers design space suit technology to help future missions to the moon.In Ask the Unexpected this week we’ve got dog science as we answer the age old joke: how does my dog smell? Terrible, obviously, but it also depends on something called the vomeronasal organ..And there are newcomers in Germany and they’re troublemakers. We hear how an unpleasant mosquito borne virus has arrived in northern Europe and consider whether climate change might be to blame.All that plus your emails and WhatsApps, language pedantry and an ewaste dating service.Presented by Marnie Chesterton
Produced by Ben Motley, with Margaret Sessa-Hawkins, Alex Mansfield and Sophie Ormiston

Jul 13, 2023 • 50min
Nato and the left-handed universe
As Nato meets, we look at what science says about consensus decision-making, whether the universe is left-handed, and what chemistry can tell us about our ancient past.Also, we examine windfarms potentially blocking reindeer herding, our quest for the coolest science in the world continues with Beth the bee queen, and Caroline contemplates the long road that got us to a malaria vaccine.

Jul 6, 2023 • 50min
Unexpected elements on the sea bed
This week time is up for the UN to come up with rules about how to mine the ocean bed. We hear about the mysterious potato shaped objects on the sea floor that contain lots of valuable minerals that are essential for electronics like mobile phones.Our team on three different continents compare how recycling of precious metals is going in their parts of world, and we hear why early Lithium batteries kept catching fire.
We also speak to an expert on hydroelectric power who tells us how small scale hydro is a massively untapped resource, possibly even in your own back garden.This week’s Under the Radar story is a personal tale of floods and landslides in the Himalayas, and what science tells us about the huge cloudburst that caused them.Our search to discover The Coolest Science in the World continues with a fascinating look at sonification with a researcher who straddles science and music, and we dive into the fact that human use of underground water has redistributed the weight of the planet.All that plus your emails and WhatsApps, the answer to a question about heavy metal and the wonderful laugh of a Nobel laureate.Presented by Marnie Chesterton
Produced by Alex Mansfield, with Ben Motley and Sophie Ormiston

Jun 29, 2023 • 50min
Predictions from the sky and murderous fish
Muslims around the world are celebrating Eid, but how to pick a date for your festivities? The Islamic calendar says look to the moon, but haven’t we always chosen to order life on earth by using the planets, moons and stars? We hear about the Mayans who tracked Venus and the astronomer who proved that comets weren’t bad omens.Having looked at the outsourcing of decisions to the sky, we wonder why we can’t just trust our brains and wonder what neuroscience has to say about it.And now that AI is able to make decisions for us, we hear about the computer-predicted proteins doing work that would otherwise take millions of years of evolution.Our ‘Under the Radar’ story this week comes from Brazil, where we meet the Lionfish – hear how these kings of the coral reef are upsetting the ecosystem by eating most of it. In our ongoing quest to find The Coolest Science in the World, we hear from a scientist doing amazing things with immersive audio.And Marnie learns about the engineer trying to build roads through fresh volcanic lava, and reflects on how we predict eruptions.All this plus your emails and WhatsApps, and a lot of mango chat.Presented by Marnie Chesterton
Produced by Ben Motley, with Alex Mansfield and Sophie Ormiston
Production Coordinator: Jonathan Harris

Jun 22, 2023 • 51min
Hayfever, paleobotany and snot palaces
A look at some unexpected elements of congestion: Why does pollen make so many of us wheezy, and sneezy? What can it tell us about the distant past? Plus, we take a look at what we can learn from the construction and engineering behind aquatic snot palaces.Plus your enemy’s enemy can be your friend – hear about the tiny viruses that invade certain bacteria. Speaking of bacteria, we look at the latest place to hunt for new antibiotics – the fur of a certain animal, and with reports of famine emerging from North Korea, we hear about the scientist who is said to have saved more lives than any other person who has ever lived.


