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Riveting talks by remarkable people, free to the world

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di Emanuela Clavarino
Pubblicato il 23/12/2011Read time: 2 mins

TED is a nonprofit devoted to Ideas Worth Spreading. It started out (in 1984) as a conference bringing together people from 3 worlds: Technology, Entertainment, Design. Since then its scope has become ever broader.

TED is owned by The Sapling Foundation, a private nonprofit foundation, a 501(c)3 organization under US tax code. It was established in 1996 by Chris Anderson, who was at that time a magazine publishing entrepreneur.

Along with 2 annual conferences, the TED Conference in Long Beach and Palm Springs each spring, and the TEDGlobal conference in Edinburgh UK each summer, TED includes the award-winning TEDTalks video site, the Open Translation Project and TED Conversations, the inspiring TED Fellows and TEDx programs, and the annual TED Prize.

Since June 2006, the talks have been offered for free viewing online, under a Creative Commons license, through TED.com. As of November 2011, over 1,050 talks are available free online. By January 2009 they had been viewed 50 million times. In June 2011, the viewing figure stood at more than 500 million.

TED's official app offer more than 900 TEDTalk videos (with more added each week) for both iPad and iPhone.

For who is not familiar with english language in the AppStore there is an unofficial app TEDiSUB. Thanks to it, you can enjoy TED Talk videos with subtitles.

Video tutorial and previews of the app:

[video:http://www.youtube.com/watch?v=RBMEWlADhoA]

 TED 2 TED 3 TED 4 TED 1


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prossimo articolo

Discovered a New Carbon-Carbon Chemical Bond

di Chiara D'Errico
Pubblicato il 16/10/2024

A group of researchers from Hokkaido University has provided the first experimental evidence of the existence of a new type of chemical bond: the single-electron covalent bond, theorized by Linus Pauling in 1931 but never verified until now. Using derivatives of hexaarylethane (HPE), the scientists were able to stabilize this unusual bond between two carbon atoms and study it with spectroscopic techniques and X-ray diffraction. This discovery opens new perspectives in understanding bond chemistry and could lead to the development of new materials with innovative applications.

In the cover image: study of the sigma bond with X-ray diffraction. Credits: Yusuke Ishigaki

Chemistry

After nearly a year of review, on September 25, a study was published in Nature that has sparked a lot of discussion, especially among chemists. A group of researchers from Hokkaido University synthesized a molecule that experimentally demonstrated the existence of a new type of chemical bond, something that does not happen very often.