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An Eaton M62 Roots-type supercharger is visible at the front of this Ecotec LSJ engine in a 2006 Saturn Ion Red Line.. The Roots-type blower is simple and widely used. It can be more effective than alternative superchargers at developing positive intake manifold pressure (i.e., above atmospheric pressure) at low engine speeds, making it a popular choice for passenger automobile applications.
It was founded in 1854 by the inventors Philander Higley Roots and Francis Marion Roots. It is notable for the Roots blower, a type of pump. [1] Today, Roots blowers are mainly used as air pumps in superchargers for internal combustion engines; they were first used in blast furnaces to blow combustion air to melt iron. [2]
A lobe pump, or rotary lobe pump, is a type of positive displacement pump. It is similar to a gear pump except the lobes are designed to almost meet, rather than touch and turn each other. An early example of a lobe pump is the Roots Blower , patented in 1860 [ 1 ] to blow combustion air to melt iron in blast furnaces, but now more commonly ...
Over time the absolute size of expeditions shrank – in part thanks to helicopter deliveries of both supplies and personnel that began to occur late in the 20th century – but, with commercial expedition companies proliferating, the number of climbers in a party that may have begun with hundreds or even close to 1,000 members in all with only ...
The Malik sisters trained at the Nehru Institute of Mountaineering in 2010. [3] On Sunday, 19 May 2013, they scaled Mount Everest, becoming the first twin sisters to do so. [6] [7] They were joined at the summit by Samina Baig and they placed the flags of India and Pakistan together to symbolise peace.
Edmund Hillary reading The Times, with his photo of fellow summiteer Tenzing Norgay on the cover, July 1953. The 1953 British Mount Everest expedition was the ninth mountaineering expedition to attempt the first ascent of Mount Everest, and the first confirmed to have succeeded when Tenzing Norgay and Edmund Hillary reached the summit on 29 May 1953.
Everest is a one-act opera by Joby Talbot to an English-language libretto by Gene Scheer. It was composed in 2014 and premiered on January 30, 2015, at the Margot and Bill Winspear Opera House of Dallas Opera . [ 1 ]
The Epic of Everest is a 1924 documentary about the Mallory and Irvine Mount Everest expedition. After a digital restoration in 2013, the film was re-released in UK cinemas. [ 1 ] The publicity surrounding the film provoked a diplomatic incident, the " Affair of the Dancing Lamas ", that delayed future expeditions and may have destabilized the ...