| Revision as of 23:17, 5 September 2026 by OpenWiki (Imported from the OpenWiki starter corpus) | Revision as of 00:19, 6 September 2026 by OpenWiki (Updated from the starter corpus) | ||
| {{Infobox | {{Infobox | ||
| | title = Mount Everest | | title = Mount Everest | ||
| − | | image = | + | | image = https://commons.wikimedia.org/wiki/Special:FilePath/Everest%20kalapatthar%20crop.jpg?width=320 |
| | caption = The summit pyramid of Everest | | caption = The summit pyramid of Everest | ||
| | label1 = Elevation | | label1 = Elevation | ||
| … | |||
| == Climate == | == Climate == | ||
| − | Conditions on the upper mountain are hostile in ways that are mostly about air pressure. At the summit, atmospheric pressure is about a third of that at sea level, so each breath delivers roughly a third of the oxygen. Above about 8,000 | + | Conditions on the upper mountain are hostile in ways that are mostly about air pressure. At the summit, atmospheric pressure is about a third of that at sea level, so each breath delivers roughly a third of the oxygen. Above about 8,000 m, in what is called the '''death zone''', the body cannot acclimatise and deteriorates continuously; without supplementary oxygen, most people can survive there for hours, not days. |
| Winter winds on the summit routinely exceed 160 km/h as the jet stream touches the peak, and temperatures fall below −35 °C. The narrow calm before and after the summer monsoon produces the short climbing seasons in May and, less often, September. | Winter winds on the summit routinely exceed 160 km/h as the jet stream touches the peak, and temperatures fall below −35 °C. The narrow calm before and after the summer monsoon produces the short climbing seasons in May and, less often, September. | ||
| … | |||