Word: vapor
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...Chilean's latest venture has alarmed his country's neighbors. He admits that he is experimenting with fuel-air explosive bombs, which release and then detonate a vapor cloud of fuel. The F.A.E. has been called the "poor man's atom bomb" because of the powerful explosion it generates. After it became known that Cardoen had helped arrange an F.A.E. test in the Atacama Desert in northern Chile three months ago, protesters in Bolivia, Peru and Argentina charged that Chile's production of such a terrifying weapon could set off a regional arms race...
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...
...gray-brown stains appeared in the azure skies above Los Angeles before the outset of World War I. During World War II, the summer haze was beginning to sting the eyes and shroud the mountains that ring the city. By the mid-'50s, Los Angeles' smog, as the noxious vapor had been dubbed, was sufficiently thick and persistent to wilt crops, obstruct breathing and bring angry housewives into the streets waving placards and wearing gas masks. Oil companies were urged to cut sulfur emissions. Cars were required to use unleaded gas, and exhausts were fitted with catalytic converters...