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Alberto Landa

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In 1970, the prototype British-built airplane Concorde 002 made its first supersonic flight (700 mph; 1,127 kph). A few months earlier, the French prototype, Concorde 001, had broken the sound barrier on 1 Oct 1969. Mach 2 was achieved by Concorde 001 on 4 Nov 1970, and by Concorde 002, a few days later on 12 Nov 1970. The combined number of supersonic flights by the two aircraft reached 100 by Jan 1971.

April Fool's Day Prank - Paint a bar of soap ...

Paint a bar of soap with clear nail polish to prevent it from lathering.
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