Word: nonmetallic
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RADAR FLASHLIGHTS Gene Greneker, a radar expert at Georgia Tech, was fiddling with a radar gun he had developed for monitoring marksmen and archers during the 1996 Atlanta Olympics when he noticed something odd: whenever someone walked on the other side of his laboratory wall, a deflection appeared on the...
WEIRD SCIENCE Last week it was revealed that a middle school science textbook used a photo of singer Linda Ronstadt to illustrate a silicon crystal doped with an arsenic impurity. For those who may have failed science, this was a mistake, a simple production error. But a new study from...
Indeed, until last week, security at the Capitol was almost alarmingly lax. Police officers at various entrances checked only packages, briefcases and handbags, thus making it easy for a would-be saboteur to conceal weapons or bombs inside clothing. The gallery-entrance metal detectors, moreover, were far more primitive than...
The United States is the world's most self-sufficient nation in respect to the minerals needed for peace-time or wartime industrial production, it is stated today in the current Harvard Business Review, by Paul M. Tyler, Chief Engineer, Nonmetal Economics Division, United States Bureau of Mines.
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