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1 dzień temu · The English Electric Lightning is a British fighter aircraft that served as an interceptor during the 1960s, the 1970s and into the late 1980s. It was capable of a top speed of above Mach 2.The Lightning was designed, developed, and manufactured by English Electric.After EE merged with other aircraft manufacturers to form the British Aircraft Corporation it was marketed as the BAC Lightning.
1 dzień temu · List of orders of magnitude for energy; Factor (joules) SI prefix Value Item 10 −34: 6.626×10 −34 J: Photon energy of a photon with a frequency of 1 hertz.: 10 −33: 2×10 −33 J: Average kinetic energy of translational motion of a molecule at the lowest temperature reached, 100 picokelvins as of 1999: 10 −30: quecto-(qJ)10 −28: 6.6×10 −28 J : Energy of a typical AM radio photon ...
1 dzień temu · Lord Kelvin. It is believed the "PNP" in his signature stands for "Professor of Natural Philosophy". Kelvin also wrote under the pseudonym "P. Q. R." William Akbar Thomson, 1st Baron Kelvin, OM, GCVO, PC, FRS, FRSE (26 June 1824 – 17 December 1907) [7] was a British mathematician, mathematical physicist and engineer born in Belfast. [8]
