Science: New Wrinkles

Supersonic Gatling Gun. Designed to kill in the split-second world of supersonic aircraft, a 20-mm. cannon that spews 8,000 shells a minute was announced this week by General Electric, co-developer with Army Ordnance of the gun for the Air Force. The cannon, nicknamed the Vulcan, has six rotating barrels that fire in succession, is patterned directly after the hand-cranked rapid-fire gun invented in 1862 by American Richard J. Gatling and used in the Spanish-American War.

Compact Eye. The extremely sensitive radar that can distinguish closely adjacent targets, e.g., boats in an amphibious landing is...

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