More often the aim is to develop an unstoppable super-weapon, from a gigantic raft to carry Napoleons invasion force, to todays centrifugal gun, which fires silent barrages of ball bearings, to burning bullets.
Expect the Unexpected
Better camouflage, and even invisibility, are popular research avenues, and there have also been exotic ideas for radar invisibility. Though these are invariably matched with equally imaginative countermeasures.
Since the 1950s many of the strangest-seeming ideas have been sponsored by DARPA, the US Defense Advanced Research Projects Agency, who have recently backed remote-controlled sharks and rats as well as the robot worlds wacky races. But DARPA did also lay the foundations for the Internet, which now allows everyone to look at the latest plans for secret weapons.
Even the experts are startled by the ability of weapons technologists to produce results. The bomb will never go off. I speak as an expert in explosives, US Admiral William Leahy declared before the Trinity test of the first atomic bomb.
Where will the next big breakthrough in military technology be? It might be in more super-explosives, micro-power generators, nanotechnology or quantum computing. But it may equally well be something completely unexpected.
Despite so much conflict, the biological roots of human violence remain elusive.
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