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NASA (historical) Number built. 32. Developed from. Lockheed A-12. The Lockheed SR-71 " Blackbird " is a retired long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by the American aerospace company Lockheed Corporation. [N 1] The SR-71 has several nicknames, including "Blackbird" and "Habu".
Downton Abbey is a British historical drama television series set in the early 20th century, created and co-written by Julian Fellowes.It first aired in the United Kingdom on ITV on 26 September 2010 and in the United States on PBS, which supported its production as part of its Masterpiece Classic anthology, on 9 January 2011.
Bluey Heeler, the titular character, is a six-year-old (later seven-year-old) Blue Heeler puppy who is curious and energetic. She lives with her archaeologist father, Bandit (voiced by David McCormack), her mother Chilli (voiced by Melanie Zanetti), who works part-time in airport security, and her four-year-old (later five-year-old) sister, Bingo.
The charge was repelled by Union rifle and artillery fire, at great loss to the Confederate army. Setting out on the Fourth of July, Lee led his army on the torturous retreat from the north. Between 46,000 and 51,000 soldiers from both armies were casualties in the three-day battle, the most costly in US history.
The architectural perspective and new systems of banking and accounting were introduced during the time. The Renaissance ( UK: / rəˈneɪsəns / rən-AY-sənss, US: / ˈrɛnəsɑːns / ⓘ REN-ə-sahnss) [1] [2] [a] is a period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the ...
The Planck constant, or Planck's constant, denoted by , [1] is a fundamental physical constant [1] of foundational importance in quantum mechanics: a photon 's energy is equal to its frequency multiplied by the Planck constant, and the wavelength of a matter wave equals the Planck constant divided by the associated particle momentum.
55.263 494 06. e2 ⋅ eV −1 ⋅ μm −1. Vacuum permittivity, commonly denoted ε0 (pronounced "epsilon nought" or "epsilon zero"), is the value of the absolute dielectric permittivity of classical vacuum. It may also be referred to as the permittivity of free space, the electric constant, or the distributed capacitance of the vacuum.
The lithium iron phosphate battery ( LiFePO. 4 battery) or LFP battery ( lithium ferrophosphate) is a type of lithium-ion battery using lithium iron phosphate ( LiFePO. 4) as the cathode material, and a graphitic carbon electrode with a metallic backing as the anode. Because of their low cost, high safety, low toxicity, long cycle life and ...