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SALYUT 3 CANNON
In 1975, Soviet Union sent a cannon to space and tested it from Salyut 3 station, just six months before US and Soviet astronauts met in orbit for the Apollo-Soyuz mission during the Cold WarIn January 1975, the Soviet Union fired a 23mm cannon from its Salyut 3 military space station as a test of its orbital defence system. The...- Kentucky’s Mammoth Cave's hidden plumbing system allows rainwater to reach underground quickly through sinkholes, but these water routes can also carry sewage, chemicals and other pollutants into the caveKentucky’s Mammoth Cave has a vast underground water network fed by rainwater entering sinkholes and cracks in the limestone. The same rapi...
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