Word: diameterically
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Most reflector telescopes, including the smallest backyard instruments, play a kind of Ping Pong with light entering the open end of the tube, and so does the space telescope. Light strikes the primary mirror, and then is focused and bounced back to a small secondary mirror (12 in. in diameter...
In the book and movie The Boys from Brazil, a demented Nazi doctor uses blood and tissue cells from Adolf Hitler to clone dozens of copies of the German dictator in the hope that at least one of them will seize power and conquer the world. Though the cloning of...
The ½-in.-diameter red lenses, now being made in test-market quantities, will cost about 20? a pair and last the laying life of the bird, about a year. Wise says the tranquilizing effect works not only for hens, but for turkeys, pheasants and even pigs. Not, however, for...
Near Golden, Colo., at the Department of Energy's Rocky Flats plant, a technician pushes a red button marked REQUEST TRANSFER. Behind a 10-in.-thick concrete wall, a pair of claws reaches out to grasp a stainless steel container filled with pink powder, then lifts it into a...
In a noisy inferno at Westinghouse's lamp factory in Bloomfield, N.J., a Unimate 2015G robot performs a process called "swaging." This is somewhat like making spaghetti, but it is done with 21-in. rods of yellow tungsten, destined to become light-bulb filaments. The robot lifts them off...