Astronomer Garik Israelian spoke at TEDGlobal on Wednesday, July 22, about spectroscopy — the art of examining the spectral signature of a distant object in the universe, and inferring its qualities and behaviors. When I asked him during rehearsal if he could stay for the whole conference, he said he had to leave early — for a great reason: he’d be at the inauguration of the largest telescope in the world, the Gran Telescopio Canarias, that Friday. He promised to record a video greeting from the event — and sent it over just as TEDGlobal wrapped up:
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Writer Elaine Morgan has died at age 92. Perhaps best known for her book The Descent of Woman, at TEDGlobal 2009 she made her case for the “aquatic ape hypothesis” — an admittedly non-standard idea about human origins. Earlier this year, in The Guardian, Erika Milam offered a compelling new take on Morgan’s place in […]
In today’s talk, economist Charles Robertson turns up the heat on an idea that’s been simmering for several years: that Africa is seeing rapid economic growth. Looking at statistics and at the precedents set by China and India, Robertson brings this idea to a full boil, saying that economists haven’t been nearly optimistic enough in […]