This week in history: May 4-10

South African gold mine explosion kills twelve miners; Red Army Faction founder Ulrike Meinhof is found dead in her prison ...
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BMW Alpina B7 faces paint issues and engine check

More Problems is the latest chapter in Project Chicago, where the supercharged BMW Alpina B7 faces another round of setbacks ...
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Square roots in the Pythagorean theorem

In this math tutorial, we explore how to find the missing side of a right triangle using the pythagorean theorem. We'll ...