Hong Kong had been very successful at preventing the spread of Covid-19. Testing and isolation measures were very effective. However, vaccine uptake was low amongst elderly people and that says virologist Malik Peiris has now left them vulnerable to the highly infectious Omicron variant.
The bombing of a scientific institute in the Ukrainian city of Kharkiv has echoes of the Stalinist purges says physicist and historical Mikhail Shifman. He tells us how the institute developed as a leading centre for physics in the 1930s, but scientists there fled or were murdered after being targeted by Stalin’s regime.
Economic sanctions and other measures designed to isolate Russia are likely to have an impact on Russian participation in international scientific collaborations. Nikolay Voronin from the BBC’s Russian Service gives us his assessment of the immediate impact and, if the conflict continues long term, the potential for Russian science to retreat the kind of isolation last seen during the cold war.
Presenter: Roland Pease
Producer: Julian Siddle
(Photo: Patients wearing face masks rest at a makeshift treatment area outside a hospital, following a Covid-19 outbreak in Hong Kong, 2 March, 2022. Credit: Tyrone Siu/Reuters)
Kenya’s President Uhuru Kenyatta has ordered the authorities to re-register all motorbike taxi operators - locally known as boda-bodas - following public outrage over an attack on a woman in her car in the capital, Nairobi.
Plus, Nigerian women push members of parliament to reconsider gender laws.
In Ukraine, we hear from a Cameroonian student who is one of many still stranded in the besieged city of Kherson is in the south west.
And we meet the Kenyan teenager who is rising tennis star.
Presented by Aisha Afrah.
Producer: Patricia Whitehorne.
Wuhan's Huanan Seafood Market is associated with many of the first cases or Covid- 19, but data on precisely how and from where the virus might have first spread has been difficult to find.
However a re-examination of the earliest samples collected from the market seem to pinpoint where the virus first showed itself. Sydney University virologist Eddie Holmes says this evidence will be crucial in determining which animals may have initially passed the virus to humans.
Humans are known to have passed the Sars-Cov-2 virus to other animals, including cats, mink and deer. Canadian researchers have recorded the first incident of a modified form of the virus passing back from deer to humans. Virologist Samira Mubareka from the University of Toronto explains the implications.
Chernobyl, the site of the worlds worst nuclear accident is back in the news as the Russian invasion of Ukraine led to a stirring up of nuclear material when troops entered the site. Ukraine has a number of nuclear reactors, Claire Corkhill, professor of nuclear materials at Sheffield University explains the potential risks from the current conflict and safeguards in place.
And we hear from Svitlana Krakovska Ukraine's representative on the Intergovernmental panel on Climate Change, on her thoughts on the prospects for climate action and scientific progress in The Ukraine.
Also, If you took a fly into a really tall elevator and let it out at the top, would it still be able to fly? And what’s the absolute highest an insect could possibly go? It’s a question that’s been bugging CrowdScience listener Chee for a while, but presenter Alex Lathbridge is on the case.
He discovers that when they’re not buzzing around your lunch, insects can be routinely found flying high up in the atmosphere travelling from A to B. There are also ground-dwelling bumblebees living in the mountains of Sichuan, China that have demonstrated an ability to fly at altitudes higher than the highest point on the planet.
But leaving aside how high insects DO fly, how high COULD they fly if given the chance? Alex explores the theoretical limits of insect flight with the help of a bit of biomechanics – before contemplating the ultimate heights of the International Space Station where the mystery of whether a fruit fly will fly in zero gravity is finally answered.
Image: Disinfection Work At Wuhan Huanan Wholesale Seafood Market, China 4 March 2020.
Credit: Zhang Chang / China News Service via Getty Images.
A remarkable debut from an exhilarating young new voice, Such a Fun Age is a big-hearted page-turner of a story about race and privilege, centring on a young black babysitter, her well-meaning employer, and a chance encounter that threatens to undo them both.
(Picture: Kiley Reid. Photo credit: David Goddard.)
If you took a fly into a really tall elevator and let it out at the top, would it still be able to fly? And what’s the absolute highest an insect could possibly go? It’s a question that’s been bugging CrowdScience listener Chee for a while, but presenter Alex Lathbridge is on the case.
He discovers that when they’re not buzzing around your lunch, insects can be routinely found flying high up in the atmosphere travelling from A to B. There are also ground-dwelling bumblebees living in the mountains of Sichuan, China that have demonstrated an ability to fly at altitudes higher than the highest point on the planet.
But leaving aside how high insects DO fly, how high COULD they fly if given the chance? Alex explores the theoretical limits of insect flight with the help of a bit of biomechanics – before contemplating the ultimate heights of the International Space Station where the mystery of whether a fruit fly will fly in zero gravity is finally answered.
Contributors:
Jason Chapman, University of Exeter
Inés Dawson, science youtuber and expert in insect flight biomechanics
Michael Dillon, University of Wyoming
Wes Shaw, Head Gardener, Sky Garden
Sharmila Bhattacharya, NASA
Presented by Alex Lathbridge
Produced by Ben Motley for the BBC World Service
Wuhan's Huanan Seafood Market is associated with many of the first cases or Covid- 19, but data on precisely how and from where the virus might have first spread has been difficult to find.
However a re-examination of the earliest samples collected from the market seem to pinpoint where the virus first showed itself. Sydney University virologist Eddie Holmes says this evidence will be crucial in determining which animals may have initially passed the virus to humans.
Humans are known to have passed the Sars-Cov-2 virus to other animals, including cats, mink and deer. Canadian researchers have recorded the first incident of a modified form of the virus passing back from deer to humans. Virologist Samira Mubareka from the University of Toronto explains the implications.
Chernobyl, the site of the worlds worst nuclear accident is back in the news as the Russian invasion of Ukraine led to a stirring up of nuclear material when troops entered the site. Ukraine has a number of nuclear reactors, Claire Corkhill, professor of nuclear materials at Sheffield University explains the potential risks from the current conflict and safeguards in place.
And we hear from Svitlana Krakovska Ukraine's representative on the Intergovernmental panel on Climate Change, on her thoughts on the prospects for climate action and scientific progress in Ukraine.
Image: Disinfection Work At Wuhan Huanan Wholesale Seafood Market, China 4 March 2020.
Credit: Zhang Chang / China News Service via Getty Images.
As the fighting continues in Ukraine, thousands continue to pour out of the country. We hear about the situation at the Polish border. A court in the Democratic Republic of Congo has temporarily removed control of a huge copper and cobalt mine from its Chinese owners. Plus, we hear from an avid listener who tunes into the BBC everyday despite not speaking English.
A scheme in the US designed to prevent industrial espionage and the theft of intellectual property, is to be refocused after it was accused of unfairly targeting Chinese American scientists. We speak to Gang Chen, a professor from MIT who was falsely accused of financial crimes, and Holden Thorp Editor in Chief of the Journal Science who tells us why the ‘China Initiative’ is at odds with the reality of international scientific collaboration.
And a huge study of farmed animals in China, from raccoon dogs to porcupines and Asian badgers, reveals that they carry a wide range of pathogens, including forms of avian flu and coronaviruses. Virologist Eddie Holmes from the University of Sydney, who was involved in the analysis, says these viruses may have the potential to jump species and infect humans – possibly leading to another pandemic.
Controlling fire was a turning point in the development of human civilisation. But how did fire become part of the human toolkit? It’s a question that has got Crowdscience listener Joseph wondering. He wants to know how humans first made fire and how that knowledge spread around the world, eventually developing into our industrial civilisations today.
Archaeologists have many different ideas and theories about this. Did humans learn the skill millions of years ago, and carry it with them as they migrated out of what is now Africa? Or was it a skill developed much later, after different groups had settled in different locations? Did people share the skill with each other or did different groups of people discover it individually?
Marnie Chesterton speaks to experts to try to piece together the archaeological clues to discover what kindled humankind's relationship with fire and flame. She hears about the early evidence of fire from Anand Jagatia, who visits Wonderwerk Cave in South Africa, and she speaks to an archaeologist who has found remains of burned flint suggesting campfire locations dating back hundreds of thousands of years in Israel. Marnie also tries her hand at making fire, Neanderthal style.
Controlling fire was a turning point in the development of human civilisation. But how did fire become part of the human toolkit? It's a question that has got Crowdscience listener Joseph wondering. He wants to know how humans first made fire and how that knowledge spread around the world, eventually developing into our industrial civilisations today.
Archaeologists have many different ideas and theories about this. Did humans learn the skill millions of years ago, and carry it with them as they migrated out of what is now Africa? Or was it a skill developed much later, after different groups had settled in different locations? Did people share the skill with each other or did different groups of people discover it individually?
Marnie Chesterton speaks to experts to try to piece together the archaeological clues to discover what kindled humankind's relationship with fire and flame. She hears about the early evidence of fire from Anand Jagatia, who visits Wonderwerk Cave in South Africa, and she speaks to an archaeologist who has found remains of burned flint suggesting campfire locations dating back hundreds of thousands of years in Israel. Marnie also tries her hand at making fire, Neanderthal style.
Contributors:
Dr Andrew Sorensen, Leiden University
Prof Nira Alperson-Afil, Bar-Ilan University
Prof Richard Wrangham, Harvard University
Dr David Morris, McGregor Museum
Candice Koopowitz, Simon Fraser University
Dr Katharine MacDonald, Leiden University
Presented by Marnie Chesterton and Produced by Hannah Fisher for BBC World Service
