Fluoride. Dentists say that drinking it can protect your teeth against cavities. Cities and towns all across the world actually dump it into the water supply, hoping to indiscriminately medicate the population through their tap water faucets. The official story on fluoride sounds wonderful: Drink the stuff, and you won't get cavities, we're told. It's a nice story. But there's another side to this story -- the side you're never told. And it starts with the astonishing but verifiable fact that nearly all the fluoride dripped into municipal water supplies isn't naturally occurring fluoride at all, but is a toxic (poisonous in large quantities) by-product of the Phosphate Mining process.
First, Keith Barry shows us how our brains can fool our bodies -- in a trick that works via podcast too. Then he involves the audience in some jaw-dropping (and even a bit dangerous) feats of brain magic.
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate.
Is World War 3 really inevitable? The answer is a resounding NO, as the world wakes up and realizes there are peaceful alternatives to armed conflict, namely ousting those in power who propose violence as a solution.
In honor of ClimateGate 2.0 (for coverage see WhatsUpWithThat's ClimateGate 2.0 thread), here's an encore presentation of The Great Global Warming Swindle (previously featured in our now defunct daily clips section), a polemic documentary film that argues against the scientific consensus that global warming is "very likely due to the observed increase in anthropogenic (man-made) greenhouse gas concentrations".
The film, made by British television producer Martin Durkin, showcases scientists, economists, politicians, writers, and others who are sceptical about the scientific theory of anthropogenic global warming. The programme's publicity materials assert that man-made global warming is "a lie" and "the biggest scam of modern times." Its original working title was "Apocalypse my arse", but the title The Great Global Warming Swindle was later adopted as an allusion to the 1980 mockumentary The Great Rock 'n' Roll Swindle about British punk band The Sex Pistols. The UK's Channel 4 premiered the documentary on 8 March 2007. The channel described the film as "a polemic that drew together the well-documented views of a number of respected scientists to reach the same conclusions. This is a controversial film but we feel that it is important that all sides of the debate are aired." According to Hamish Mykura, Channel 4's head of documentaries, the film was commissioned "to present the viewpoint of the small minority of scientists who do not believe global warming is caused by anthropogenic production of carbon dioxide." Although the documentary was welcomed by global warming sceptics, it was criticised by scientific organisations and individual scientists (including two of the film's contributors). The film's critics argued that it had misused and fabricated data, relied on out-of-date research, employed misleading arguments, and misrepresented the position of the Intergovernmental Panel on Climate Change. Channel 4 and Wag TV (the production company) accepted some of the criticism, correcting some errors in subsequent releases.