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BBC Inside Science

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

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Folgen von BBC Inside Science

566 Folgen
  • Folge vom 15.02.2018
    Shipping air pollution; Cheddar Man; Millirobots in the body;Dog brain training
    Sulphur belched out of vessels' smokestacks is a serious health problem for coastal communities around the world. Four hundred thousand premature deaths from lung cancer and cardiovascular disease and around 14 million childhood asthma cases annually are reckoned to be related to shipping emissions. The International Maritime Organisation has finally agreed to drastically reduce polluting emissions from 2020. Gareth Mitchell discusses with James Corbett of the University of Delaware the impact of the emissions reduction on health. The nearly complete skeleton of Cheddar Man was found in a cave in Somerset in 1903. He'e been in the news because experts in human face reconstruction have created an image of what he probably looked like based on new DNA evidence. Chris Stringer, Ian Barnes and Selina Brace of the Natural History Museum have all worked with Cheddar Man and they talk to Gareth about how the study of this 10 000 year old skeleton is part of a bigger project to understand how Britain became populated with waves of peoples from Europe in the Mesolithic and Neolithic eras. Scientists at the Max Planck Institute for Intelligent Systems have invented a magnetically controlled soft robot only four millimetres in size that can walk, crawl or roll through uneven terrain, carry cargo, climb onto the water surface, and even swim in it. Professor Metin Sitti, Director of the Physical Intelligence Department at the Max Planck Institute, explains how it works and how he sees the future use of millirobots in medicine - in delivering drugs and targeting cancerous cells.Marnie Chesterton talks to Dr Lisa Wallis from ELTE University in Hungary about her work to improve the cognitive abilities of older dogs... using touchscreens.
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  • Folge vom 08.02.2018
    Democracy in Space
    This week a US based billionaire launched a giant space rocket and sent a car vaguely in the direction of Mars. As a space mission it was to say the least unconventional, and for those involved in promoting space science it presents a quandary. Is such a mission largely a publicity stunt or is it useful for engaging people in the potential of space exploration? Gareth Mitchell looks at one project which enables schoolchildren to programme computers on the International Space Station and he talks to the European Space Agency about why a rock concert might be a good avenue for exploring space science. As more and more of our everyday lives are conducted online we ask what are the cyber-security threats of today, and how can science be used to counter them. Do we now need new kinds of science to locate, understand and stop new kinds of threat? Can bat science help human ageing research? New findings have show that some long lived bat species do not age in the same way as other mammals. They don't even seem to posses the DNA repair enzyme most commonly found in the animal kingdom. We look at the mystery of why bats seem to have evolved in this way.And have you lost a satellite? Don't worry: a computer geek will find it for you. That's exactly what's happened - an amateur space sleuth has detected signals from a NASA satellite thought to have been 'lost' for years.
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  • Folge vom 01.02.2018
    Scientists on Trial
    In 2016 there was an attempted coup in Turkey. This led to many people who the government saw as opposition figures being sacked from their jobs and in some cases held without trial. They include prominent intellectuals, medics and scientists. In recent days there has been a similar crackdown on people voicing criticism of Turkey's current military actions in Syria. Stephen Reichter, Professor of Psychology at St Andrews University has been to Turkey to observe the trial of one of his former colleagues. He tells us what he saw and discusses the wider issues for science.It's the 60 years since the launch of Explorer 1 and the discovery of the Van Allen Belts. This was the satellite the US launched in response to Sputnik. However unlike Sputnik it did undertake scientific exploration, its findings have been significant for every space mission that followed.Using DNA sequencing scientists have found that the 'Two Brothers' mummies at the Manchester Museum have different fathers so are, in fact, half-brothers. Khnum-nakht and Nakht-ankh - date to around 1800 BC. Ever since their discovery in 1907 there has been some debate amongst Egyptologists on whether the two were actually related at all. DNA was extracted from their teeth to solve the mystery.And the science of the Archers, a current storyline involves leaks of industrial chemicals illegally buried on a farm many years ago. We'll be looking behind the scenes to see where the story came from and how the world's longest running soap opera ensures scientific accuracy.This week's programme is presented by Gareth Mitchell as Adam is away.
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  • Folge vom 25.01.2018
    Did typhoid kill the Aztecs, DNA stored in Bitcoin, Glow-in-the-dark plants and levitating humans
    What killed the Aztecs? In some areas of the Americas, as many as 95% of the indigenous population died of diseases brought in by the discoverers of the New World. Pandemics hit the population who had little immunity to diseases carried by people and livestock. One outbreak responsible for killing millions started in 1545 and was locally called 'cocoliztli'. But for the last 500 years, exactly what this deadly disease was has remained a mystery. Adam talks to Johannes Krause of the Max Planck Institute who has analysed the teeth of 10 individuals from a mass grave for pathogens and found remnants of typhoid fever DNA. Could this be, in part, responsible for the deaths of millions? Historian Caroline Dodds Pennock from the University of Sheffield discusses the difficulties of knowing for definite what killed so many millions of people. In 2015, Nick Goldman issued a challenge. If anyone could decode the information he had stored on some DNA by 21st January 2018, they could win a bitcoin. When Nick bought the bitcoin it cost about £200. To claim the bitcoin, the winner would have to sequence the DNA and then decrypt a code. In late 2017, Nick thought he would be keeping his bitcoin, now worth thousands of pounds. But PhD student Sander Wuyts got in touch with Nick to claim his prize. Marnie Chesterton follows the story. Adam talks to MIT scientist, Michael Strano about his new techniques to make plants glow in the dark. Could these plants be used as street lighting in the future? And how can sound be used to levitate humans? Professor of Ultrasonics at the University of Bristol, Bruce Drinkwater explains how his team have managed to overcome a size limit on the use of acoustic beams to trap and move objects in space. With no theoretical upper limit on the size of object which can be levitated, he explains how the technology could be used in medicine to deliver powerful drugs to a very specific place. This would leave the rest of the body unharmed or could help in the dispersal of kidney stones.
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