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Discovery

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Explorations in the world of science.

science

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26:59

After Ebola

Discovery ·

2016/05/23

Last November Sierra Leone was declared Ebola free. By then, the epidemic had killed over 11,000 people in West Africa. The speed at which it took off highlighted the poor state of healthcare in the affected countries. Now in Sierra Leone some of the facilities created to deal with Ebola are being repurposed, to take in wider health care needs. The capital Freetown’s main hospital now has a new accident and emergency department, developed from the facilities created there to deal with Ebola. Around

26:58

Benefits of Bilingualism - Part Two

Discovery ·

2016/05/16

More than half the world speaks more than one language. New research is showing that being multilingual has some surprising advantages – it can help us keep healthier longer. Gaia Vince finds out how knowing many languages can protect our brains over our lifespan, and even stave off the appearance of some diseases, including dementia.Gaia attempts the Flanker Task at Lancaster University and then talks to Professor Panos Athanopolous about why bilinguals do better at it than monolinguals. She hears

26:59

Benefits of Bilingualism - Part One

Discovery ·

2016/05/09

More than half of the world's people speak more than one language. Some people may have been forced to learn a language at school or had to pick up one because they moved to a new country. Others may just love learning new tongues and do so before they visit a new place. Recently, psychologists have discovered that knowing more than one language helps us in some surprising ways. The skill of bilinguals to switch focus by filtering out or inhibiting one language to concentrate on the relevant one

26:59

Our Unnatural Selection

Discovery ·

2016/05/02

Humans have been altering animals for millennia. We select the most docile livestock, the most loyal dogs, to breed the animals we need. This 'artificial selection' is intentional. But as Adam Hart discovers, our hunting, fishing and harvesting are having unintended effects on wild animals - the age of "unnatural selection". This accidental, inadvertent or unintentional selection pressure comes form almost everything we do – from hunting, fishing, harvesting and collecting to using chemicals like

26:59

Science Stories: Series 2 - Margaret Cavendish

Discovery ·

2016/04/25

In the spring of 1667 Samuel Pepys queued repeatedly with crowds of Londoners and waited for hours just to catch a glimpse of aristocrat writer and thinker Margaret Cavendish. Twice he was frustrated and could not spot her, but eventually she made a grand visit to meet the Fellows of the newly formed Royal Society. She was the first woman ever to visit.Pepys watched as they received her with gritted teeth and fake smiles. They politely showed her air pumps, magnets and microscopes, and she politely

26:58

Science Stories: Series 2 - Orgueil Meteorite

Discovery ·

2016/04/18

In 1864 a strange type of rock fell from the sky above Orgueil in rural France. Shocked and frightened locals collected pieces of the peculiar, peaty blob from the surrounding fields, and passed them on to museums and scientists. At that time, a debate had been raging over the origin of life; Could life possibly form from mere chemicals? Or did it need some strange unidentified vital substance?Into this debate fell the Orgueil meteorite, and because it seemed remarkably similar to loamy soil, some

26:59

The Horn Dilemma

Discovery ·

2016/04/11

The majority of white and black rhinoceros are found in South Africa. This stronghold for these magnificent creatures is now being threatened by poachers killing rhino for their horns.Rhino horn, traded illegally in parts of Asia, is thought to be a cooling agent in traditional Chinese medicine. It's recently been hailed as a cure for cancer, and is seen as a status symbol in Vietnam. Made from keratin, the same stuff as hair or fingernails rhino horn has negligible medical properties, yet people

26:58

African Einsteins

Discovery ·

2016/04/01

Will Einstein’s successors be African? It’s very likely - and some of them will be women.Back in 2008 South African physicist Neil Turok gave a speech in which he declared his wish that the next Einstein would be from Africa. It was a rallying call for investment in maths and physics research in Africa. The ‘Next Einstein’ slogan became a mission for the organisation Neil Turok had founded to bring Africa into the global scientific community - through investment in maths and physics, the African

26:58

Feeding the World - Part Two

Discovery ·

2016/03/28

As the world’s population grows and the climate challenges our ability to grow crops, how can agriculture provide enough food? Can we get more from our current food crops for less?Scientists and farmers alike have been increasingly haunted by the environmental effects of high-intensity farming over the last half century. There is now an urgent need to be more mindful of the landscape and our finite ecological resources.Professor Kathy Willis, science director of Kew Gardens, looks at how we can

26:59

Feeding the World - Part One

Discovery ·

2016/03/21

As the world’s population grows and the climate challenges our ability to grow crops, how can agriculture provide enough food? Can we get more from our current food crops for less?Scientists and farmers alike have been increasingly haunted by the environmental effects of high-intensity farming over the last half century. There is now an urgent need to be more mindful of the landscape and our finite ecological resources. Professor Kathy Willis, science director of Kew Gardens, looks at how we can

27:00

Editing the Genome - Part Two

Discovery ·

2016/03/14

There is a new genetic technology which promises to revolutionise agriculture and transform our influence over the natural world. Research is well underway to create pigs and chickens immune to pandemic influenza, cereals which make their own fertiliser and mosquitoes engineered to wipe out wild populations of the insects which transmit diseases to humans. These are just three examples of what we could create with CRISPR gene editing.Should we be worried about this unprecedented power over animals

26:59

Editing the Genome

Discovery ·

2016/03/07

Over the last four years, scientists have discovered a simple and powerful method for altering genes. This will have massive implications for all of us as it raises the possibility of easily changing the genetic code in animals, plants and ourselves. The potential for good is enormous. The ethical challenges are profound. Professor Matthew Cobb explores the brave new world of CRISPR gene editing.Producer: Andrew Luck-BakerImage: Model of human DNA strand, BBC Copyright

26:59

Science Stories: Series 1 - Einstein’s Ice Box

Discovery ·

2016/02/29

In the late 1920s Einstein was working on a grand unified theory of the universe, having given us E=mc2, space-time and the fourth dimension. He was also working on a fridge. Perhaps motivated by a story in the Berlin newspapers about a family who died when toxic fumes leaked from their state-of the-art refrigerator, Einstein teamed up with another physicist Leo Szilard and designed a new, safer refrigerating technology. And so it was that in 1930, the man who had once famously worked in the patent

27:00

Science Stories: Series 1 - Eels and Human Electricity

Discovery ·

2016/02/22

Naomi Alderman presents an alternate history of electricity. This is not a story of power stations, motors and wires. It is a story of how the electric eel and its cousin the torpedo fish, led to the invention of the first battery; and how, in time, the shocking properties of these slippery creatures gave birth to modern neuroscience.Our fascination with electric fish and their ability to deliver an almighty shock - enough to kill a horse – goes back to ancient times. And when Alessandro Volta

26:59

Science Stories: Series 1 - Cornelis Drebbel

Discovery ·

2016/02/15

Philip Ball dives into the magical world of Cornelis Drebbel , inventor of the world's first submarine in 1621. How did the crew of this remarkable vessel manage to breathe underwater, completely cut off from the surface, 150 years before oxygen was officially discovered? King James I of England and thousands of his subjects lined the banks of the River Thames in London to watch the first demonstration. The strangest boat they had ever seen sank beneath the waves and stayed there for three hours

26:59

El Nino

Discovery ·

2016/02/08

Floods in South America, fires in Indonesia, famine threatened in Ethiopia, yet more drought in Southern Africa and central America. Plus, a stunning peak in global temperatures for 2015. The current El Nino, just past its peak, has a lot to answer for. Roland Pease talks to the experts who forecast, track and analyse the events in the Pacific Ocean associated with this powerful climate phenomenon. And seeks answers to some burning questions.(Photo: Indonesia forest fire burning, 2015. Credit: Ulet

27:01

An Infinite Monkey's Guide to General Relativity

Discovery ·

2016/02/01

Brian Cox and Robin Ince explore the legacy of Einstein's great theory, and how a mathematical equation written 100 years ago seems to have predicted so accurately exactly how our universe works. From black holes to the expanding universe, every observation of the universe, so far, has been held up by the maths in Einstein's extraordinary work. So how was he able to predict the events and behaviour of our universe, long before the technology existed to prove he was right, and will there ever be

27:00

An Infinite Monkey's Guide to General Relativity

Discovery ·

2016/01/25

It is 100 years since the publication of Einstein's great theory, and arguably one of the greatest scientific theories of all time. To mark the occasion, Brian Cox takes Robin Ince on a guided tour of General Relativity. With the help of some of the world's leading cosmologists, and a comedian or two, they explore the notions of space time, falling elevators, trampolines and bowling balls, and what was wrong with Newton's apple. It is a whistle stop tour of all you will ever need to know about

27:00

Scotland’s Dolphins

Discovery ·

2016/01/18

The chilly waters of north-east Scotland are home to the world’s most northerly group of bottlenose dolphins. They are protected by EU conservation laws and despite being a small population, appear to be thriving. Euan McIlwraith heads out into the Moray Firth on a research boat to discover how photo-ID techniques are used to record the dolphins’ movements around the coast, and visits the University of St Andrews to find out more about their communications underwater. As he discovers, every

27:00

Nature's Numbers

Discovery ·

2016/01/11

Mathematics is one of the most extraordinary things humans can do with their brains but where do our numerical abilities come from? Maths writer Alex Bellos looks for answers from a tribe in the Brazilian Amazon which has no words for numbers in its language. He also meets a budding mathematician who is only seven months old. Image credit: Edward Gibson

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