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In mountaineering, the death zone refers to altitudes above which the pressure of oxygen is insufficient to sustain human life for an extended time span. This point is generally agreed as 8,000 m (26,000 ft), where atmospheric pressure is less than 356 millibars (10.5 inHg; 5.16 psi). [ 1 ]
In the death zone, the human body cannot acclimatize. An extended stay in the death zone without supplementary oxygen will result in deterioration of bodily functions, loss of consciousness, and, ultimately, death. [3] [4] [5] The summit of K2, the second highest mountain on Earth, is in the death zone.
Four major mountain ranges lie between Death Valley and the ocean, each one adding to an increasingly drier rain shadow effect, and in 1929, 1953, and 1989, no rain was recorded for the whole year. [20] The period from 1931 to 1934 was the driest stretch on record, with only 0.64 inches (16 mm) of rain over a 40-month period. [19]
A series of satellite images shows the lake forming and blooming across Badwater Basin. The images show how the lake bloomed across the low-lying salt flat on Aug. 30. It dwindled during the fall ...
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Of these, the Mojave is the smallest and driest. It displays typical basin and range topography, generally having a pattern of a series of parallel mountain ranges and valleys. It is also the site of Death Valley, which is the lowest elevation in North America. The Mojave Desert is often colloquially called the "high desert", as most of it lies ...
The following is a list of the largest satellite cities worldwide, with over 500,000 people. A satellite city is defined as subordinate to a central city in a business or infrastructure sense, and it may or may not have more population than the central city due to arbitrary municipal definitions. Excluded are transborder agglomerations.
The ISS has hosted the most people in space at the same time, reaching 13 for the first time during the eleven day docking of STS-127 in 2009. [ 48 ] STS-131 and Expedition 23 crew members gather for a group portrait of 13 in 2010, which set the record of four women at the same time in space.