Word: cubical
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Dates: during 1960-1969
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...from being released. Smoking is forbidden; so are ordinary pencils, which give off graphite particles. People who work in the clean rooms are "packaged" in special boots, hoods and coveralls and are vacuum-cleaned before they enter. The rooms themselves are vacuumed continually. But despite all these precautions, each cubic foot of their air still contains at least 1,000,000 dust particles that are .3 microns (.000012 in.) or larger in diameter. This is a vast improvement over ordinary air, but Whitfield was sure he could do better. Abandoning the idea of keeping dust particles from being generated...
Gross tonnage is not the weight of a ship, it is a measurement, in units of 100 cubic feet, of the volume of enclosed space in the hull and superstructure. "Gross tons" is believed to have had its origin in the number of huge casks (tuns) of wine that oldtime ships had the space to carry...
...depressions are only a few feet deep, but two of them are 50 ft. deep and several hundred feet across. The holes are not craters; nothing is blown out. There is no radioactivitiy, and the level of the ground around the depressions is not raised. But millions of cubic feet of dirt have apparently disappeared...
...each pair of stars, Dr. Kraft thinks, is probably a white dwarf: a star that has burned so thoroughly that it now consists chiefly of "degenerate" matter, denser than anything known on earth. This remarkable stuff weighs thousands of pounds per cubic inch. The nova's degenerate core is extremely hot, but its surface is covered with a thin, rather cool layer of normal matter. The other star of each pair is all normal matter, mostly hydrogen, and just about the same weight and size as the sun. In many cases, Dr. Kraft is sure the two stars...
...diggers work on each two-met square at a time; and it takes them to 40 hours to remove a cubic meter earth, depending on the wealth of are aeological material that is recovered...