Word: vapor
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Dates: during 1990-1999
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Shapiro says that the state-of-the-art telescope he envisions has to be up very high to avoid water vapor that can absorb submillimeter waves...
...TERM "greenhouse effect" is used to represent the accumulation of trace gases in the atmosphere. These gases prevent the release of the sun's radiation back into space and trap the heat in the earth's atmosphere, leading to global warming. Without greenhouse gases like water vapor and carbon dioxide, our planet would reach a much lower average temperature and would be unable to support life as we know...
...Ecuador; The Icebergs, 1861; and the picture that made him the most famous artist in America and amazed even John Ruskin -- the stupendous view of Niagara Falls from the Canadian side, the green glass water sliding faster and faster toward the edge and into the clouds of white vapor...