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PODCAST

BBC Inside Science

A weekly programme that illuminates the mysteries and challenges the controversies behind the science that"s changing our world.

science

All Episodes

28:27

New CFC emissions, Cannabis and the Environment, The...

BBC Inside Science ·

2019/05/23

New CFC emissions Researchers say that they have pinpointed the major sources of a mysterious recent rise in a dangerous, ozone-destroying chemical. CFC-11 was primarily used for home insulation but global production was due to be phased out in 2010. But scientists have seen a big slowdown in the rate of depletion over the past six years. This new study published in the Journal Nature says this is mostly being caused by new gas production in eastern provinces of China. Dr Matt Rigby of the

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34:16

Hubble Not-So Constant, Synthetic E. Coli, The...

BBC Inside Science ·

2019/05/16

The Hubble Constant The Hubble constant is the current expansion rate of the universe but it seems to have changed over time. Hiranya Peiris, Professor of Astrophysics from University College London and Adam Riess, Professor of Physics and Astronomy from Johns Hopkins University, are both using different methods to obtain a value for the Hubble constant. But there is a discrepancy in their values. It used to be that the error bars on the two values overlapped, and so cosmologists thought they would

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28:39

Forensic science provision, optimal garden watering...

BBC Inside Science ·

2019/05/09

A damning House of Lords' report into the provision of forensic science in England and Wales makes for uncomfortable reading for some but is broadly welcomed by those in the field. Prof. Niamh Nic Daeid, one of many who gave evidence to the Science and Technology Committee, gives her reaction and suggests how a combination of unsatisfactory regulation, profit and austerity pressures in a uniquely commercialised sector, and some surprising gaps in the science knowledge base has lead to a sorry

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27:58

Sex, gender and sport - the Caster Semenya case and...

BBC Inside Science ·

2019/05/02

In 2018, the International Association of Athletics Federations (IAAF) introduced new eligibility regulations for female athletes with differences in sex development (DSDs). These regulations are based on the contention that women with high levels of endogenous testosterone and androgen sensitivity have a performance advantage over their peers. South African middle distance runner, Mokgadi Caster Semenya, who won two Olympic gold medals in 2012 and 2016, and Athletics South Africa, are contesting

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28:27

Thought-to-speech machine, City Nature Challenge,...

BBC Inside Science ·

2019/04/25

Patients who suffer neurological impairments preventing them from speaking potentially face a severely limited existence. Being able to express yourself in real time is a large part of our identity. In the journal Nature this week, scientists from the University of California, San Francisco, report a new technique for synthesising speech based on measurements of neural signals taken from the brain. Author Dr Gopala Anumanchipalli tells Adam about how this proof of principle could one day form the

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33:08

Notre-Dame fire, Reviving pig brains, ExoMars,...

BBC Inside Science ·

2019/04/18

The horror of the blazing Notre-Dame cathedral in Paris has been slightly quenched by the fact that so much of the French landmark has been saved. But what was it about the structure of the roof, with some the beams dating from the 13th century, that meant it burned like a well-stacked bonfire? Guillermo Rein is Professor of Fire Science at Imperial College London , and he explains to Adam Rutherford how wood burns and how it was the intricate mixture of large and small beams, and very poor fire

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38:32

Visualising a black hole, Homo luzonensis, Two ways...

BBC Inside Science ·

2019/04/11

"We have now seen the unseeable" according to scientists who are part of the Event Horizon Telescope group. The international team has released a picture of the first black hole. Data gathered from an array of over 8 radio telescopes has been crunched to create a picture of the super-hot plasma surrounding the black hole M87. It shows extremely excited photons on the brink of being swallowed up by the supermassive black hole, 500 million trillion km away. Marnie Chesterton, asks UCL cosmologist

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39:00

Cretaceous catastrophe fossilised, LIGO and Virgo,...

BBC Inside Science ·

2019/04/04

About 66 million years ago an asteroid at least 6 miles wide crashed into the Earth, in the shallow sea that is now the Yucatan Peninsular in Mexico. It gouged the Chicxulub crater 18 miles deep; threw 25 trillion tonnes of debris into the atmosphere, much of which was hotter than the Sun, created huge seismic waves and massive tsunamis churning the Gulf of Mexico, tearing up coastlines and peeling up 100’s of metres of rock. 75% of the Earth’s forest burned. Debris was thrown out across the Solar

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27:59

UK pollinating insect numbers, Tracking whales using...

BBC Inside Science ·

2019/03/28

One of the longest running insect pollinator surveys in the world, shows that a few generalist pollinators are on the increase, whereas specialist insects are declining. Using data collected by volunteers across Great Britain to map the spatial loss of pollinator insect species, the study by the CEH (Centre for Ecology and Hydrology) measured 353 wild bee and hoverfly species across the country. The results showed that on average, each 1km2 survey patch lost an average of 11 species from 1980-2013

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31:37

Where next World Wide Web? Space rocks and worms

BBC Inside Science ·

2019/03/21

30 years ago Tim Berners-Lee invented the World Wide Web as a way to let physicists share their papers and data on a distributed network. It's changed a lot since then and not all for the better. Dominant technology companies monopolise our data and many, including Berners-Lee are worried about the growth of state sponsored hacking, misinformation and scamming. One solution is to re-decentralise the web, giving us more control of our information and what is done with it, but at what cost? Founder

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30:36

Rules and ethics of genome editing, Gender, sex and...

BBC Inside Science ·

2019/03/14

When the news broke last December that Chinese biophysicist He Jiankui had successfully edited the genomes of twin girls using the technique known as CRISPR-Cas9, scientists and the public were rightly outraged that such a procedure had taken place. Jiankui is currently being investigated by Chinese authorities for breaking legal and ethical guidelines on human genome editing. This week, in the journal Nature, several top scientists have called for a global moratorium on gene editing in the clinic

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29:16

A cure for HIV? Sleepy flies, Secrets of the...

BBC Inside Science ·

2019/03/07

An HIV-1 sufferer, who had developed aggressive cancer, and underwent a revolutionary stem cell transplant, has been declared HIV resistant. It's been 18 months since the 'London patient' underwent a stem cell transplant of donated HIV resistant cells. This has only happened once before, in the case of the ‘Berlin Patient' – who, after two transplants, has now been HIV and cancer free for 10 years. Professor Ravindra Gupta at Cambridge University is careful not to say the work carried out at UCL has

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27:44

Falling carbon and rising methane; Unsung heroes at...

BBC Inside Science ·

2019/02/28

Efforts to cut emissions of carbon dioxide (CO2) and tackle climate change in many developed economies are beginning to pay off, according to research led by Corinne Le Quere at the Tyndall Centre at the University of East Anglia. The study suggests that policies supporting renewable energy and energy efficiency are helping to reduce emissions in 18 developed economies. The group of countries represents 28% of global emissions, and includes the UK, US, France and Germany. The research team analysed

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34:13

Mars - rovers v humans? Forests and carbon, Ethiopian...

BBC Inside Science ·

2019/02/21

Nasa have called time on the 14 year mission with the Mars Opportunity rover. Curiosity is still there. But what's next for our exploration of the Red planet? Adam asks Senior Strategist in Space Systems at Airbus, Liz Seward and BBC space correspondent, Jonathan Amos. Airbus are working with the European and Russian Space Agencies on the next rover, part of the Exomars mission. This new rover is called the Rosalind Franklin, after the UK scientist and when it hopefully lands in 2021, it'll be

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27:55

Insect decline, Gut microbiome, Geomagnetic switching

BBC Inside Science ·

2019/02/14

A very strongly worded, meta-review paper (looking at 73 historical reports from around the world published over the past 13 years) has just been published looking at the fate of insects around the world. The researchers have collated other people’s research, including the big 27 year study from Germany, that showed 75% loss of insects by weight (biomass). The basic headlines are quite scary: 40% of insect species are declining; 33% are endangered; we’re losing a total mass of 2.5% of insects every

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27:55

Sea Level Rise, Equine Flu, Generator Bricks, Iberian...

BBC Inside Science ·

2019/02/07

In 2016 some scientists suggested that with climate change so much ice in Antarctica could melt that the global sea level could rise up to a metre. There would be an "ice apocalypse". Now another group has refined the models and in a paper published this week has concluded that the rise will be lower. Adam Rutherford and lead author Dr Tamsin Edwards of Kings College London discuss the latest research and how policy makers and the public should react to changing results from ice sheet studies.All

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28:08

Sprinting Neanderthals, Geodynamo, Spreading Sneezes...

BBC Inside Science ·

2019/01/31

Many physical features of Neanderthals might not be for cold climate adaptation as previously thought. They may be for types of locomotion. Which, according to paleo-ecologist, John Stewart at Bournemouth University, makes the long thigh to calf ratios more likely that Neanderthals were adapted to fast, powerful sprints, as part of their hunting and survival. The clues to this lie less in the bones and more in the evidence that Neanderthals lived in wooded areas rather than tundra.Earth’s solid

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30:32

Ultima Thule, Dry January, Periodic Table

BBC Inside Science ·

2019/01/04

2019 means the opportunity to explore the most distant object yet encountered in our solar system – the brilliantly named Ultima Thule as Nasa’s New Horizons spacecraft hit the headlines this week when it flew past an object 4 billion miles away, took photos and sent them back to earth. The stunning images confirmed that Ultima Thule looks a bit like a snowman, only several miles in length and orbiting somewhere much colder than any earth winter. Inside Science talked to Dr Carly Howett, a member of

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28:03

Gene-edited twins, Placenta organoids in a dish, When...

BBC Inside Science ·

2018/11/29

Claims by a Chinese scientist that he has gene-edited human embryos, transplanted them producing genetically edited twins, who will pass on these changes to their offspring, has the scientific community outraged. The work, which was carried out in secret, has not been officially published or peer reviewed, but if the claims are to be taken seriously, this work severely flaunts international ethical guidelines at many levels. BBC Health and Science Correspondent James Gallagher explains the story so

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37:10

Mars InSight mission, Detecting dark matter,...

BBC Inside Science ·

2018/11/22

The Government's strategy to eradicate TB in cattle is a contentious topic. The disease is extremely complicated and lots of people have different ideas on how to manage it. Professor of Zoonotic and Emerging Disease at the University of Nottingham, Malcolm Bennett, helps Adam Rutherford understand just how complex the TB bacterium is, how difficult it is to test for infection and why the vaccine BCG does and doesn't work and answers listener's question of why don't we vaccinate cows? Citizen

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