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Series 48 |
| 4801 :48x01 - Do I Drink too Much? (Oct/13/2009) | | Alcohol is by far the most widely used drug - and a dangerous one at that. So why are so many of us drinking over the recommended limits? Addiction expert John Marsden, who likes a drink, makes a professional and personal exploration of our relationship with alcohol. He undergoes physical and neurological examinations to determine its impact, and finds out why some people will find it much harder than others to resist alcohol. | | | |
| 4802 :48x02 - The Secret You (Oct/20/2009) |
With the help of a hammer-wielding scientist, Jennifer Aniston and a general anesthetic, Professor Marcus du Sautoy goes in search of answers to one of science's greatest mysteries: how do we know who we are? While the thoughts that make us feel as though we know ourselves are easy to experience, they are notoriously difficult to explain. So, in order to find out where they come from, Marcus subjects himself to a series of probing experiments.
He learns at what age our self-awareness emerges and whether other species share this trait. Next, he has his mind scrambled by a cutting-edge experiment in anesthesia. Having survived that ordeal, Marcus is given an out-of-body experience in a bid to locate his true self. And in Hollywood, he learns how celebrities are helping scientists understand the microscopic activities of our brain. Finally, he takes part in a mind-reading experiment that both helps explain and radically alters his understanding of who he is. | | | |
| 4803 :48x03 - Fix Me (Oct/27/2009) | The potential of stem cells for the future of medicine seems scarcely plausible. They offer the prospect of a new "regenerative medicine" that may before long be able to regrow amputated limbs, create hearts in a lab or heal people paralyzed by spinal cord injuries. It's that huge. But because we're just at the point where some of that promise translates into clinical procedures, there are vultures around -unregulated doctors who play on patients' hopes via glossy websites.
This Horizon documentary, called Fix Me, follows Sophie Morgan, paralyzed from the waist down in a car accident, as she sets out to discover if there's a treatment out there for her, or whether the claims are too good to be true. It's an enlightening journey, as are those of the two other subjects - an amputee, Anthony, and Dean, a man with a potentially fatal heart condition. | | | |
| 4804 :48x04 - Who's Afraid of a Big Black Hole? (Nov/03/2009) | Black holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. Yet scientists now believe they could hold the key to answering the ultimate question - what was there before the Big Bang?
The trouble is that researching them is next to impossible. Black holes are by definition invisible and there's no scientific theory able to explain them. Despite these obvious obstacles, Horizon meets the astronomers attempting to image a black hole for the very first time and the theoretical physicists getting ever closer to unlocking their mysteries. It's a story that takes us into the heart of a black hole and to the very edge of what we think we know about the universe. | | | |
| 4805 :48x05 - Why Do We Talk? (Nov/10/2009) | Talking is something that is unique to humans, yet it still remains a mystery. Horizon meets the scientists beginning to unlock the secrets of speech - including a father who is filming every second of his son's first three years in order to discover how we learn to talk, the autistic savant who can speak more than 20 languages, and the first scientist to identify a gene that makes speech possible.
Horizon also hears from the godfather of linguistics, Noam Chomsky, the first to suggest that our ability to talk is innate. A unique experiment shows how a new alien language can emerge in just one afternoon, in a bid to understand where language comes from and why it is the way it is. | | | |
| 4806 :48x06 - How Long is a Piece of String? (Nov/17/2009) | Alan Davies attempts to answer the proverbial question: how long is a piece of string? But what appears to be a simple task soon turns into a mind-bending voyage of discovery where nothing is as it seems.
An encounter with leading mathematician Marcus du Sautoy reveals that Alan's short length of string may in fact be infinitely long. When Alan attempts to measure his string at the atomic scale, events take an even stranger turn. Not only do objects appear in many places at once, but reality itself seems to be an illusion.
Ultimately, Alan finds that measuring his piece of string could - in theory at least - create a black hole, bringing about the end of the world.
Source: BBC | | | | | | |
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