Frontiers

Frontiers

Programme exploring new ideas in science and meeting the scientists and researchers responsible for them, as well as hearing from their critics

Episodes

December 25, 2014 28 mins

"e-Therapy" has come a long way since the (slightly tongue in cheek) days of ELIZA, a very early attempt at computer based psychotherapy. ELIZA was little more than an algorithm that spotted patterns in words and returned empty, yet meaningful-sounding questions back at the user.

All sorts of e-therapies are now available to help low-moderate level mental health issues.

But could Virtual Reality technology bring the next great leap i...

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Dr Hannah Fry investigates the hidden patterns behind terrorism and asks whether mathematics could be used to predict the next 9/11.

When computer scientists decided to study the severity and frequency of 30,000 terrorist attacks worldwide, they found an distinctive pattern hiding in the data.

Even though the events spanned 5,000 cities in 187 countries over 40 years, every single attack fitted neatly onto a curve, described by an eq...

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December 11, 2014 27 mins

Professor Adam Hart explores the newest area in the science of animal behaviour - the study of personality variation within species as diverse as chimpanzees, wandering albatrosses, sharks and sea anemones. What can this fresh field of zoology tells us about the variety of personality among humans?

We are all familiar with the variety of temperament and character in the dog, Canis lupus familiaris, but this is the product of selecti...

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December 8, 2014 27 mins

Many people are living with chronic diseases such as rheumatoid arthritis and inflammatory bowel conditions in which the body attacks itself. Although drug treatments have improved over recent years they do not work for everyone and can have serious side effects.

Now researchers such as neurologist Dr Kevin Tracey of the Feinstein Institute for Medical Research, and rheumatologist Professor Paul-Peter Tak of Amsterdam University, ar...

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December 4, 2014 27 mins

As our skies become more crowded Jack Stewart examines the long awaited modernisation of air traffic control. With traffic predicted to reach 17 million by 2030 more flights will mean more delays. For many a new approach to controlling flights is long overdue since aircraft still follow old and often indirect routes around the globe, communication between the ground and air is still by VHF radio, and any flexibility is heavily cons...

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November 13, 2014 27 mins

The European Space Agency's Rosetta mission to 67P/Comet Churyumov-Gerasimenko reached its most dramatic moment on 12th November. BBC News correspondent Jonathan Amos has covered the event for a special edition of Radio 4's 'Frontiers' programme.

In August, the Rosetta spacecraft was the first to go into orbit around a comet; its images of the extraordinarily rugged landscape of this 4 kilometre space mountain of ice and space dust...

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July 10, 2014 28 mins

In March astronomers in the BICEP2 collaboration announced they had found gravitational waves from the Big Bang. But now the evidence is being questioned by other scientists. Dr Lucie Green reports on the debate and asks if scientists can ever know what happened billions of years ago when the universe was formed. Image: The BICEP2 telescope at twilight, which occurs only twice a year at the South Pole. The MAPO observatory (home o...

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July 3, 2014 28 mins

Adam Hart looks at how new developments in understanding insect behaviour, plant cell growth and sub cellular organisation are influencing research into developing robot swarms.

Biological systems have evolved elegant ways for large numbers of autonomous agents to govern themselves. Staggering colonies built by ants and termites emerge from a decentralized, self-governing system: swarm intelligence. Now, taking inspiration from term...

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June 26, 2014 28 mins

General anaesthetics which act to cause reversible loss of consciousness have been used clinically for over 150 years. Yet scientists are only now really understanding how these drugs act on the brain and the body to stop us feeling pain. Linda Geddes reports on the latest research using molecular techniques and brain scanners.

Linda visits the Anaesthesia Heritage Centre where William Harrop-Griffiths, President of the Association ...

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June 19, 2014 27 mins

Gaia Vince looks at the future of power transmission. As power generation becomes increasingly mixed and demand increases, what does the grid of the future look like?

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June 12, 2014 28 mins

Geoff Watts investigates the latest thinking about our brain power in old age.

He meets researchers who argue that society has overly negative views of the mental abilities of the elderly - a dismal and fatalistic outlook which is not backed up by recent discoveries and theories.

Geoff talks to Professor Lorraine Tyler who leads a large study in Cambridge (CamCAN) which is comparing cognition and brain structure and function in 700 p...

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June 5, 2014 28 mins

Most traffic accidents are caused by human error. Engineers are designing vehicles with built in sensors that send messages to other cars, trucks, bikes and even pedestrians, to prevent collisions happening. The idea is to make the vehicles react to whatever's going on faster than the human drivers.

Jack Stewart drives around the university town of Ann Arbor, in Michigan, in some of the many vehicles that are fitted with experimenta...

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December 19, 2013 27 mins

Are you a lark or an owl? Are you at your best in the morning or the evening? Linda Geddes meets the scientists who are exploring the differences between larks and owls. At the University of Surrey's Sleep Research Centre she talks to its director, Professor Derk-Jan Dijk, and finds out her own chronotype by filling in a questionnaire.

Linda discovers why we have circadian rhythms and why they don't all run at the same rate. Dr Loui...

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December 12, 2013 28 mins

Geoengineering is a controversial approach to dealing with climate change. Gaia Vince explores putting chemicals in the stratosphere to stop solar energy reaching the earth.

When volcanoes erupt they put sulphur in the stratosphere. The particles reflect solar rays back into space and the planet cools down. Scientists are suggesting that it could be possible to put sulphur into the stratosphere using specialised aircraft or a very l...

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December 5, 2013 28 mins

3.5 billion people are alive today because of a single chemical process. The Haber-Bosch process takes Nitrogen from the air and makes ammonia, from which synthetic fertilizers allow farmers to feed our massive population.

Ammonia is a source of highly reactive nitrogen, suitable not just for fertilizer but also as an ingredient in bomb making and thousands of other applications.

Now we make around 100 million tonnes of ammonia annua...

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November 28, 2013 28 mins

Quentin Cooper takes a look at the new materials that can mend themselves. Researchers are currently developing bacteria in concrete which, once awakened, excrete lime to fill any cracks. In South America you can choose a car paint that heals its own scratches. And there are even gold atoms which can migrate to mend tiny breaks in jet turbine blades.

Engineers normally design things so the likelihood of breaking is minimised. But by...

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November 21, 2013 28 mins

We like to think that we are in control of our lives, of what we do, think and feel. But, as Geoff Watts discovers, scientists are now revealing that this is just an illusion.

A simple magic trick reveals just how limited our conscious awareness of the world is, and how easy it is to fool us.

So if our conscious brain can cope with so little, what is responsible for the rest? Science is starting to reveal the crucial role of a silent...

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November 14, 2013 28 mins

What is it about the microbes in our guts that can have such an impact on our lives?

The human gut has around 100 trillion bacterial cells from up to 1,000 different species. Every person's microbiota (the body's bacterial make-up) is different as a result of the effects of diet and lifestyle, and the childhood source of bacteria.

Scientists are learning more and more about the importance of these bacteria, as well as the viruses, fu...

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July 18, 2013 28 mins

The hormone oxytocin is involved in mother and baby bonding and in creating trust. Linda Geddes finds out if taking oxytocin can help people with autism become more sociable.

Larry Young, Professor in the Department of Psychiatry at Emory University in Atlanta, talks about the work in voles that demonstrated the role of oxytocin in pair bonding.

Professor Markus Heinrichs of Freiburg University in Germany tells Linda Geddes about do...

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July 11, 2013 28 mins

Tracey Logan goes underground to find out how Crossrail is using the latest engineering techniques to create 26 miles of tunnels below London's tube network, sewers and foundations and through its erratic, sometimes unpredictable geology. She finds out about the latest science being used in Europe's biggest engineering project.

London sits on a varied geology of deposits of fine-grained sand, flint gravel beds, mottled clay, shelly ...

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