Word: vacuums
(lookup in dictionary)
(lookup stats)
Dates: during 1960-1969
Sort By: most recent first
(reverse)
...Eagle, they will place on the lunar surface a sheet of aluminum foil suspended from a stand. It will be exposed to the constant stream of particles expelled by the sun and should trap rare gases such as argon, krypton, xenon, neon and helium. Returned to earth in a vacuum box, the captive gases will be analyzed to give scientists new insights into the sun and the "wind" that it blows through the solar system...
...safety of their triple-sealed vacuum storage boxes, the lunar samples will be rushed to the LRL even before the Apollo 11 crew members arrive to wait out their 21-day quarantine period. There are "time-critical" tests that must be performed swiftly to detect any gas or radioactivity that the samples may give off; the emissions may decrease or stop soon after the sample is removed from the lunar surface. The samples will be sealed off from the rest of the world by a double biological barrier: 1) a vacuum system and a series of vacuum chambers in which...
...environment that makes the moon so hostile to terrestrial life is, paradoxically, precisely what makes the moon so potentially valuable. The absence of atmosphere, which exposes any life on the moon to deadly radiation and the inhospitable vacuum of space, also makes the moon an ideal base for observatories and some industries. Meteors which have battered the lunar surface for eons have probably also endowed the moon with immense mineral wealth. Although lunar days and nights are each two weeks long and accompanied by deadly extremes of temperature (ranging from 240 degrees Fahrenheit above zero to 250 below), both...
...problem, Rand Corp. Researcher George Kocher suggests actually building a large mirror on the lunar surface, using quartz produced from silica?if it exists on the moon?and giving it a more accurate surface than terrestrial mirrors by shaping it with ion beams (which are effective only in a vacuum) instead of abrasives. Several astronomers have pointed out that round lunar craters lined with chicken wire would make ideal reflectors for radio telescopes similar to the 1,000-ft. Cornell University radio dish, set in a rounded valley near Arecibo, Puerto Rico...
Near Perfect Vacuum...