Science and engineering: articles for 07.03.2017

07.03.2017, 16:25
A “sensational” discovery of 75-century-old copper tools in Serbia is compelling scientists to reconsider existing theories about where and when man began using metal, investigatemagazine.co.nz reported.
07.03.2017, 14:49
As the world warmed millions of years ago, conditions in the tropics may have made it so hot some organisms couldn’t survive.

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