Word: diameterically
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What makes the explosions all the more distressing is that they may have been caused by the same conditions that exist in a number of Japan's crowded, fast-growing cities. The normal method for subway construction, now under way in Tokyo and Sapporo as well as Osaka, is...
By coincidence, the moon's diameter will appear to be the same as the sun's tomorrow, but this is not always the case. Since the moon's orbit is not circular, there are times when the satellite passes in front of the sun but is so far from the...
Asteroids, most of them only a few miles in diameter, were once thought to be the debris of a planet that mysteriously broke up. Now scientists are more inclined to believe that they are pre-planetary building blocks that could not develop into a planet because of the powerful gravitational...
The announcement was truly cosmic. After examining data transmitted from OAO-II, its second Orbiting Astronomical Observatory-which is still functioning effectively after a year in space -NASA this month declared that "astronomers are contemplating the possibility that the universe may be several times larger than previously believed." And how...
There are other compelling objections to NASA's announcement. Most modern astronomers are confident that the technical yardstick by which they measure distant galaxies and quasars-the red shift of light from those bodies-is reasonably accurate. And by that measure, the most distant quasar so far observed by...