General Electric Co.'s laboratories in Schenectady last week demonstrated (see cut, p. 23) a tiny magnet, about the size of a pellet of buckshot, holding aloft a five pound flatiron. The magnet weighs about one-sixteenth of an ounce. The maximum ratio of lifted load to magnet weight is 1,500 to i, highest in the annals of engineering. Thus General Electric's mighty mite is the most powerful permanent magnet on record.
It is made of an aluminum-nickel-cobalt-iron alloy called "Alnico," announced some years ago by General Electric (TIME, Nov. 4, 1935). The first researches...
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