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Word: tested (lookup in dictionary) (lookup stats)
Dates: during 1990-1999
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From that first small pile grew production reactors that bred plutonium for the first atom bombs. Moving to Los Alamos in 1944, Fermi was on hand in the New Mexican desert for the first test of the brutal new weapon in July 1945. He estimated its explosive yield with a characteristically simple experiment, dropping scraps of paper in the predawn stillness and again when the blast wind arrived and comparing their displacement...

Author: /time Magazine | Title: Atomic Physicist: ENRICO FERMI | 3/29/1999 | See Source »

Since his original paper, Turing had considerably broadened his thoughts on thinking machines. He now proposed the idea that a machine could learn from and thus modify its own instructions. In a famous 1950 article in the British philosophical journal Mind, Turing proposed what he called an "imitation test," later called the "Turing test." Imagine an interrogator in a closed room hooked up in some manner with two subjects, one human and the other a computer. If the questioner cannot determine by the responses to queries posed to them which is the human and which the computer, then the computer...

Author: /time Magazine | Title: Computer Scientist: ALAN TURING | 3/29/1999 | See Source »

...fact, the key piece of research, available to all, was completed a few years earlier by the one undisputed hero of this story, Harvard's John Enders. It was his team that figured out how to grow polio in test tubes--suddenly giving vaccine hunters everywhere enough virus to work with...

Author: /time Magazine | Title: JONAS SALK: Virologist | 3/29/1999 | See Source »

...Frenchman, the psychologist Alfred Binet, published the first standardized test of human intelligence in 1905. But it was an American, Lewis Terman, a psychology professor at Stanford, who thought to divide a test taker's "mental age," as revealed by that score, by his or her chronological age to derive a number that he called the "intelligence quotient," or IQ. It would be hard to think of a pop-scientific coinage that has had a greater impact on the way people think about themselves and others...

Author: /time Magazine | Title: The IQ Meritocracy | 3/29/1999 | See Source »

...country embraced the IQ--and the application of IQ testing to restructure society--more thoroughly than the U.S. Every year millions of Americans have their IQ measured, many with a direct descendant of Binet's original test, the Stanford-Binet, although not necessarily for the purpose Binet intended. He developed his test as a way of identifying public school students who needed extra help in learning, and that is still one of its leading uses...

Author: /time Magazine | Title: The IQ Meritocracy | 3/29/1999 | See Source »

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