Here’s how it works. On June 10, 1854, Georg Friedrich Bernhard Riemann gave his classic lecture on curved space. Riemann was a 19th century mathematician from Germany. His landmark lecture ...

Over 200 Dead After Air India Flight Crashes on Takeoff Verified footage showing the plane moments before it crashed in India, shortly after takeoff. LIVE At Least One Person Survives; Rescuers ...

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