Word: magnetized
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Closet-Size Shoe Box. Because the large currents that flow in superconductors generate the intense magnetic fields needed in atom smashers and in controlled fusion experiments, superconductors will eventually replace bulky elecromagnets in these areas. A 1-lb. superconducting magnet cooled by a 200-lb. refrigerating system and powered by a 6-volt battery can produce as intense a magnetic field as an iron-core electromagnet weighing several tons and requiring 50 kilowatts of power. Entire trains could be suspended above their roadbeds in strong magnetic fields produced by superconducting magnets, enabling them to travel more smoothly and with less...
Surveyor 5's overworked TV camera, which has transmitted more pictures (18,006) to earth than Surveyors 1 and 3 together, also confirmed the presence of some iron compounds on the moon. Focusing on a powerful magnet that scientists had attached to one of the spacecraft's footpads, the camera transmitted pictures of a thin layer of dust-kicked up in the landing-on the magnet. By comparing these shots with control pictures made on earth, where dirt with known percentages of iron filings had been scattered on a magnet, the scientists established the presence of iron compounds...
...Vinci. A haberdasher's son who never went be yond grammar school, Kroyer even now winces at technical journals on the ground that "you risk reading yourself stupid." He explains his self-schooled skills by saying that "the recognition of a demand works on me like a magnet. I then set out to define the problems and correct them...
...means of relieving congestion in the big cities is to establish alternate points of concentration in nearby existing cities. One plan, originated by Greek Planner Constantinos Doxiadis, recommends that Port Huron, Mich., a Great Lakes town of 38,000 people, 55 miles from Detroit, be developed as an alternate magnet, to draw business and population from Detroit before the city strangles...
Armed with a pair of 2-in. metal bars, one of them magnetized, Surveyor 4 was designed to test the extent to which material in the moon's crust may be attracted by a magnet. In turn, this information might have yielded new clues as to whether the moon's surface features were formed by volcanic activity or by the impact of meteors...