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PODCAST

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.

science

All Episodes

67:03

The science of social distancing

Unexpected Elements ·

2020/03/29

The strong social distancing policies introduced by China seem to have been successful in stopping the spread of Covid 19. Without any effective drug treatments, reducing our number of contacts is the most effective way to prevent viral transmission.We also look at the similarities been policies in Russia and the US on how best to deal with the virus. In both cases there are contradictions and disagreements between medical professionals and politicians.And a warning from Polio, how vaccines may

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66:39

Covid -19, are you carrying the virus?

Unexpected Elements ·

2020/03/22

In Italy the entire population of a small town was tested for Covid 19. Of those infected, one in three people with no symptoms had the virus. And from China researchers found many people carried the virus – even before authorities there began tracking its spread. The findings suggest vulnerable people may contract the virus from those without symptoms.And we’ve news of a breakthrough - new tests looking at Covid 19 antibodies, These should help provide a picture of developing immunity to the

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67:54

Covid -19 how infectious is it really?

Unexpected Elements ·

2020/03/15

Covid- 19 cases seem to be multiplying daily and there is now a growing body of scientific evidence both on its spread and the effectiveness of measures to try and control it. We look at what’s working, what’s not and why. And we look to the potential for coronavirus drug treatments, why despite the hype there really isn’t anything round the corner.Australia’s recent fire season was intense; a new study looks back over 500 years of the weather pattern partly responsible, the Indian Ocean Dipole. The

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62:24

Australia’s fires - fuelled by climate change

Unexpected Elements ·

2020/03/08

Attributing Australia's bush fires, a major study says man-made climate change was a big driver – making the fires at least 30% worse than they would have been if natural processes were the only factors.We look at preparations for coronavirus in Africa. Although cases there are currently lower than in much of the rest of the world a major training initiative is taking place to spread awareness amongst medics across the continent.We ask why Horseshoe bats in particular carry coronaviruses, and find a

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67:52

Tracking coronavirus spread

Unexpected Elements ·

2020/03/01

The appearance of Covid -19 in Italy and Iran surprised many this week. As the virus continues to spread we look at ways to contain it.Australia’s fires have burnt around 20 percent of the countries woodlands, what are the implications for the recovery of those ecosystems?And what is the link between the world’s super rich and deforestation? Unsurprisingly it’s money.And we hear about the unexpected cooling effects of hydroelectric dams.Weather: wet, dry, cold, hot, sunny, windy or downright weird -

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59:45

Monitoring Covid-19, harvests and space junk

Unexpected Elements ·

2020/02/23

Roland Pease reports from the American Association for the Advancement of Science’s annual meeting in Seattle. At the UK Research and Innovation’s stand in the exhibition hall, he’s joined by three scientists to discuss monitoring the Coronavirus outbreak, the locusts devastating crops in East Africa and the ever increasing amount of space junk orbiting the Earth. Professor Jeffrey Shaman of the Mailman School of Public Health at Columbia University talks about how he is modelling the movement of

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65:01

CoVid-19: Mapping the outbreak

Unexpected Elements ·

2020/02/16

Researchers at the London School of Hygiene and Tropical medicine have developed an online map which presents the latest information on the spread of CoVid-19 and allows anyone to follow the outbreak and compare this data with the spread of Ebola and SARS. See the weblink from this page to try it for yourself.And the coming together of microbiology and big data science has led to the development of a portable device able to spot antibiotic resistant bacteria. This should help with more precise drug

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62:02

Coronavirus, prospects for treatment?

Unexpected Elements ·

2020/02/09

Doctors in the US have treated a coronavirus patient with a drug developed for Ebola. That drug had never been tested on people so its use here seems an extreme move. We look at why this kind of drug developed for one virus might work on another. It’s all down to the genetic material at the centre of the virus. That raises safety concerns as human cells contain similar material.East Africa is experiencing a plague of locusts and bizarrely it’s linked to the Australian wildfires. A weather pattern

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66:31

Understanding the Wuhan coronavirus

Unexpected Elements ·

2020/02/02

Parts of China are on lockdown, a small number of cases have been reported in other countries and the past week has brought widely conflicting views on the potential danger presented by the new virus. We look at the scientific facts, analyse why it’s so difficult to predict the spread of the virus, look at the nature of virus infection and discuss why treatments such as vaccines are not available. We look at why some viruses can jump from animals to humans and examine hi-tech solutions designed to

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66:47

Wuhan Coronavirus

Unexpected Elements ·

2020/01/26

The way in which a new virus has emerged in China is reminiscent of SARS, a highly infectious virus that spread rapidly. It’s so similar that Health officials demanded action as soon as its existence became known. And the Chinese authorities and global medical community have acted to try and stop the spread. Events were still developing, even as we were in the studio making this programme, new reports of suspected cases were coming in. The WHO was yet to give its view on the severity of the

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60:56

Mount Taal volcano

Unexpected Elements ·

2020/01/19

An experimental satellite called Aeolus, named after a Greek god of wind, which takes daily global measurements of the wind patterns throughout the depth of atmosphere has improved weather forecasts. ESA’s Anne-Greta Straume explains how it works. The dramatic eruption of the island volcano Taal in the Philippines was a spectacular picture of the plume of ejecta punching a hole in overlying cloud cover. Nearby towns have been blanketed with dust, fissures have appeared in the ground and there has

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68:29

Australia’s extreme fire season

Unexpected Elements ·

2020/01/12

2019 was Australia’s hottest year on record, a major factor behind the bush fires which have been far worse than usual. We look at the patterns of extreme weather that have contributed to the fires but are also linked to floods in Africa. And the way in which thunderstorms have helped to spread the fires.The armpit of Orion is changing. The star Betelgeuse is dimming some claim this is readying it for a major explosion others are more sceptical, we weight up the arguments.And an Iron Age brain may

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61:23

Adapting California

Unexpected Elements ·

2020/01/05

Roland Pease is joined by California based science Journalist Molly Bentley as we examine the impact of earthquakes and fires. California has experienced both in the last year - What’s it like to live with a constant threat from these extreme events? We also take a look at NASA’s plans for a new mission to Mars – to look for signs on life. What is empathy? This week’s question comes from Maria in Amsterdam who has noticed that when one of her friends is in pain, she feels their pain too, literally

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53:31

Gaming climate change

Unexpected Elements ·

2019/12/29

The latest round of climate negotiations, COP25 have ended without agreement on many fundamental issues. We join researchers from Perdue University in the US who have developed a role playing game to encourage climate negotiators and others to take a long term view. Key to this research project is the concept of tipping points, where an environment changes irreversibly from one state to another. This is accompanied by the loss of ecosystems, for example the widespread melting of arctic sea ice,

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53:34

Understanding the Anak Krakatau eruption

Unexpected Elements ·

2019/12/22

We have the latest from a year long investigation into the causes of the December 2018 Indonesian Tsunami. And we get a look at the first pictures from the Mayotte undersea volcano, which emerged earlier this year off the coast of East Africa. As CrowdScience celebrates its third birthday, the team takes time to revisit some of our early episodes, and catch up with listeners to discover if the answers we uncovered changed the course of their lives? We hear from Zach, who has learned to let go of a

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56:13

White Island volcano eruption

Unexpected Elements ·

2019/12/15

From the American Geophysical Union in San Francisco, Roland Pease talks with Diana Roman of the Carnegie Institution for Science in Washington DC about the tragic White Island volcanic eruption in which at least eight tourists died.Aurora Elmore of National Geographic and Arbindra Khadka of Tribhuvan University in Kathmandu Nepal discuss the state of Himalayan glaciers and climate change.Robert Hazen of the Carnegie Institution for Science in Washington DC tells Roland about the research area

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71:13

CRISPR babies scandal – more details

Unexpected Elements ·

2019/12/08

Extracts from unpublished papers on the methods used by a Chinese scientist to genetically modify the embryos of two girls reveal a series of potentially dangerous problems with the procedure and ethical shortcomings.We look at the mechanism behind the formation of our facial features and how this is linked to our evolution, scrutinise the impact of current emissions on global climates and see why lithium, used in batteries and medicines, is now a potentially widespread pollutant.66 million years

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56:22

New Malaria target

Unexpected Elements ·

2019/12/02

Molecular scale investigations have identified the mechanism which confers resistance to antimalarial drugs. Researchers hope work to turn off this mechanism could mean cheaper well known antimalarials can become effective once again. We look at the threat to weather forecasting from 5G networks, discuss the origins of much of the technology in our mobile phones and ask what food we’ll be eating in the future and how the past can inform this.Science fiction is full of people settling on distant

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64:33

Politics and Amazonia’s fires

Unexpected Elements ·

2019/11/24

This year’s Amazon fires have been worse than since 2010, scientists blame a government attitude which they say has encouraged deforestation. Government funded scientists have contributed anonymously to the finding – fearing for their jobs.Food crops and fungus are not normally seen as compatible, but a mutually beneficial relationship between these organisms may help reduce the need for chemical fertilisers and combat climate change.Hayabusa 2, the Japanese space mission is returning to earth after

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56:38

Australia burning

Unexpected Elements ·

2019/11/17

Australia’s annual wild fires have started early this year, drought is a factor but to what extent is ‘Bush fire weather’ influenced by climate change?A two million year old fossil tooth reveals some biological answers to who its owner was.Why Climate change may have killed off the world’s first superpower And a hologram produced from sound waves.Can machines read our minds? We go in search of the latest efforts to connect brains to computers. We learn how researchers are combining brain scans with

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313 results

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