15 amazing tech feats and world records

Not to be outdone by athletes at this summer's Olympic games, techies have been setting some world records of their own of late.

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Super gun


The United States Navy knows how to destroy stuff. Case in point: In 2010 it created the world’s most powerful electromagnetic rail-gun, or at least the most powerful that the government has made public. It has firepower of 33 megajoules of force, which is enough to propel projectiles over long distances at between 4,500 to 5,600 miles per hour. To put that in perspective, a megajoule is equivalent to a one ton vehicle travelling at 100 miles per hour. The Navy may be looking to advance the technology too. It put out a request for information to investigate the possibility to building such a weapon that would shoot hundreds of rounds per minute, instead of a single shot.

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