Word: thousandths
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...save the situation, the physicists invented the neutrino, which they think of as a particle with less than one two-thousandth of the mass of an electron. It has no electric charge, and it therefore reacts very slightly with matter, sailing through solid metal or rock almost as if they were empty space. About 5% of the energy of a nuclear reactor (so says the theory) goes off in the form of neutrinos, and most of those that shoot downward pass right through the earth...
...silicon in the battery is first grown in pure crystals, cut into strips, then impregnated to a depth of only one ten-thousandth of an inch with minor impurities. The top surface is treated with boron, whose atom has one less electron in its outer shell than silicon has; the bottom layer is treated with arsenic, whose atom has one more electron in its outer shell than silicon has. When light strikes near the junction of the two layers, it pushes electrons to the bottom surface, pulls "holes" (electronless gaps) to the top surface, creating a difference in voltage...
Nobody liked the edict. "With things in this country going so badly," growled the conservative newspaper Correio da Manhā, "a campaign to repress excesses in courtship should be put in the one-thousandth priority." Cried Lady Novelist (0 Quinze, As Tres Marias) Rachel de Queiroz: "God protect lovers!" Even the cops prowled Copacabana beach with noisy prudence; they made no arrests the first three nights...
...ancestors of the bevatron, accelerators with less than a thousandth of its power, extracted from nature the information that told man how to build uranium and hydrogen bombs. The bevatron will strike far deeper into the atomic nucleus, where matter and energy lie closely twined together...
...nuclei should repel one another. Instead, they cling tightly to one another with a force that is 1037 (ten trillion trillion trillion) times as strong as the force of gravitation. This force, oddly, has only a short range. At a distance of 2.5 x 10-12 centimeters (one four-thousandth of the radius of an atom), it diminishes almost to nothing...