Word: vaporizers
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
...Cooling Vapor. The Big Thompson River canyon had long been a very special place for Colorado residents and tourists alike. Situated on the eastern slope of the Rocky Mountains, the canyon starts at about 7,500 ft. In a stretch of 25 miles, moving eastward from the Continental Divide, it descends some 2,000 ft. The walls of the canyon tower over what used to be a pleasant trout stream sparkling in the depths below. The canyon was not unspoiled, but neither was it ruined by money: the big, Aspen-style condominiums had been kept away, and most...
...m.p.h. winds blowing easterly across the Rockies. But this time, a nearly stagnant cold front lay over the peaks. As the dark clouds rose over a cul-de-sac at Estes Park, far up in the canyon, they collided with the mass of cold air. The cooling vapor began to condense into drops. At 6 p.m. it began to rain on the high eastern slopes of the Continental Divide. Nobody could have predicted that in the next six nightmarish hours, 14 in. would fall-as much as in a normal year...
Above the horizon, the Martian sky looked surprisingly bright*-evidence, say some scientists, that the atmosphere is richer than expected in light-diffusing particles. In the sky was a shadow- perhaps a cloud composed of water vapor...
Indeed, Mars seems to possess many of the elements essential to life on earth. Most of Mars' visible water appears in the form of atmospheric vapor or ice locked in the planet's two polar caps (the surface pressure on Mars is so low* that liquid water would probably boil away). But liquid water apparently once did flow freely on the Martian surface in earlier days; Viking's orbital pictures show that the planet is crisscrossed by dry "riverbeds" and sinuous valleys, including a deep Grand Canyon-like depression called the Valles Marineris, that were probably carved...
...took increasingly detailed pictures of Mars. They showed no evidence of the swirling sandstorms that had obscured the surface as Mariner 9 approached in 1971, and the proposed Viking landing site in Chryse was clearly visible. Even more significant to the scientists, the Martian atmosphere showed discernible traces of vapor-and bright patches of ice were visible in several craters. This seemed to be good evidence of the presence, in greater abundance than expected, of the substance essential to life as man knows it: water...