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The science that stumped Einstein

In 1908, the physics world woke up to a puzzle whose layers have continued to stump the greatest scientists of the century ever since. That year, Dutch physicist Kamerlingh Onnes cooled mercury down to -450° ...

Jul 01, 2014 4.6 / 5 (107) 50

China animal protectors at cross-porpoises

China's river porpoises are rarer than pandas, but fishermen fighting to save them have been snared by a net of blackmail allegations, highlighting uncertainties faced by the country's emerging environmentalists.

Jun 23, 2014 5 / 5 (1) 0

List of search results for electric sail