के हाे सगरमाथाकाे उचाइ बढ्नुकाे कारण | | How to Measure a Mountain | | Bishwo Ghatana

Website: https://bishwoghatana.com/ Our Next youtube channel : All History: /watch/srYlmhcGqRwGl Follow on Facebook: https://www.facebook.com/bishwoghatna/ Follow on Twitter: https://twitter.com/BishwoGhatana/ How to Measure a Mountain? The first recorded attempt at measuring the Everest using modern calculations had come in 1856 when surveyors commissioned by the then Surveyor General of India George Everest estimated its height at 29,002 feet. Without going into the sines and cosines of the craft, suffice it to say that using accurate measures of distance and multiple readings of angles from different positions, it is possible to use trigonometry to determine the elevation of any feature. A key instrument in this exercise is the theodolite, which helps in measuring angles. It is much like an instrument you may have observed engineers use in road building. As it turned out, the height determined by officials of the British Raj was quite close to the one Indian officials would compute in the 1950s using more modern instruments: 29,028 feet, or 8,848 meters. It is still the most cited figure for Everest's height. The key tool employed by Chinese and Nepalese surveyors was a GPS receiver, which was carried to the top of Everest. The factor of time taken for signals to travel from the receiver to multiple satellites and the distance of these satellites from fixed objects provides a highly accurate approximation of the location and elevation of the peak. But while GPS and similar systems may have enabled great leaps in pinning heights, measuring a mountain depends significantly on several moving parts. Music Credit : Martian Cowboy Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/b ... http://incompetech.com/ http://audionautix.com/ http://audionautix.com/

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