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South Asians need to exercise for 20 minutes longer per day than Europeans

Republicans Debate Hiking Top Tax Rate to 40% for Millionaires

So you think you know Roger Penrose? Be prepared to be shocked

Computers and Gadgets in 1994 [video]

Empire of Illusion: Frank Dikötter on Why China Isn't a Superpower [video]

Xiaomi Car with Driver Assistance Crashes, Three Reported Dead

Publishers trial paying peer reviewers – what did they find?