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In astronomy or planetary science, the frost line, also known as the snow line or ice line, is the minimum distance from the central protostar of a solar nebula where the temperature is low enough for volatile compounds such as water, ammonia, methane, carbon dioxide and carbon monoxide to condense into solid grains, which will allow their accretion into planetesimals.
In geology, the frost line is the level down to which the soil will normally freeze each winter. By an analogy, the term is introduced in other areas. Frost line (astrophysics), a particular distance in the solar nebula from the central protosun where it is cool enough for hydrogen compounds such as water, ammonia, and methane to condense into solid ice grains.
Planetesimals beyond the frost line accumulated up to 4 M E within about 3 million years. [38] Today, the four giant planets comprise just under 99% of all the mass orbiting the Sun. [b] Theorists believe it is no accident that Jupiter lies just beyond the frost line. Because the frost line accumulated large amounts of water via evaporation ...
The maximum frost depth observed in the contiguous United States ranges from 0 to 8 feet (2.4 m). [1] Below that depth, the temperature varies, but is always above 0 °C (32 °F). Alternatively, in Arctic and Antarctic locations the freezing depth is so deep that it becomes year-round permafrost , and the term " thaw depth " is used instead.
Hiro Protagonist is a freelance hacker, and pizza delivery driver for the Mafia. He meets Y.T. (short for Yours Truly), a young skateboard Kourier (), who refers to herself in the third person, during a failed attempt to make a delivery on time. Y.T. completes the delivery on his behalf, and they strike up a partnership, gathering intel and selling it to the CIC.
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The second season was finally released in the United States and Canada on April 3, 2007, via Paramount Pictures Home Entertainment/CBS DVD. [145] On October 30, 2007, the broadcast version of the pilot finally received a legitimate U.S. release as part of the Twin Peaks "Definitive Gold Box Edition". This set includes both U.S. original network ...
The decade of the 1990s in film involved many significant developments in the industry of cinema. [1] Numerous feature-length movies were specifically filmed or edited to be displayed not only on theater screens but also the smaller TV screens, like showing more close-ups and less wide shots during dialogue scenes .