Word: millionths
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Dates: during 1920-1929
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...Vega and Sirius are both blue-white stars, but the maximum heat of Vega is much farther toward the violet than that of Sirius. Rigel (blue) shows two maxima, one of which is in the infrared rays, invisible to the human eye. The apparatus detects differences of a hundred-millionth of a degree of heat. That is not enough, say the astronomers. It must be sharpened to a thousand-millionth, and many fainter stars of every type must be examined. Most of these big stars are found to be at least twice as hot as the sun. The present findings...
...pyramid, divided by its height, gives 3.1416, the geometrical π. The number of of days in the year is deducible from the dimensions of an inner chamber. One of the interior galleries is oriented toward the pole star. The pyramidal cubit (635.66 millimeters) is exactly one ten-millionth of the earth's polar radius. Cheops is oriented to within five minutes of arc to modern latitude and longitude. Its meridian divides the Delta of the Nile and the habitable continents into two equal parts...
...action of light. The minute changes in electrical potential thus induced are amplified by special electrical apparatus to such a degree as to permit the measurement and recording of a reaction produced by the briefest exposure to a source of light equivalent to only one-millionth of a candle power...
...caloric energy of the two would allow. But not that it is known that sun than the caloric energy of the two would allow. But now that it is known that such tremendous power is latent tin these toast, geologists and physicists can celebrate with unanimity the 1600 millionth anniversary of the world's birthday and toast enthusiastically "ten billion more...