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The Sharps-Borchardt Model 1878 is a single-shot hammerless falling-block action rifle designed by Hugo Borchardt and made by the Sharps Rifle Manufacturing Company.It closely resembles older Sharps Rifles but has a firing mechanism that uses a hammerless striker rather than a hammer and firing pin like the old Sharps Rifle.
[6] [7] In 1963, the Jaynes–Cummings model [8] was developed describing the system of a two-level atom interacting with a quantized field mode (i.e. the vacuum) within an optical cavity. It gave the nonintuitive prediction that the rate of spontaneous emission could be controlled depending on the boundary conditions of the surrounding vacuum ...
Brüel & Kjær (Sound and Vibration Measurement A/S) is a Danish multinational engineering and electronics company headquartered in Nærum, near Copenhagen.It was the largest producer in the world of equipment for acoustic and vibrational measurements.
A Chase XG-20 glider, which was later converted to the XC-123A prototype. The XC-123 prototype. The C-123 Provider was designed originally as an assault glider aircraft for the United States Air Force (USAF) by Chase Aircraft as the XCG-20 (Chase designation MS-8 Avitruc) [2] Two powered variants of the XCG-20 were developed during the early 1950s, as the XC-123 and XC-123A.
The Pennsylvania state record weighed 399 kg (880 lb) and was shot in November 2010 in Pike County. [62] The North American Bear Center, located in Ely, Minnesota, is home to the world's largest captive male and female American black bears. Ted, the male, weighed 431–453.5 kg (950–1,000 lb) in the fall of 2006. [63]
Labeled diagram of a typical archosaur skull, the skull of Dromaeosaurus. A detailed assessment of archosaur interrelations by Sterling Nesbitt [30] confirmed or found the following twelve unambiguous synapomorphies, some previously known:
A statistical endeavor, by contrast, uses a model that relates the game results to underlying variables representing the ability of each player. Elo's central assumption was that the chess performance of each player in each game is a normally distributed random variable. Although a player might perform significantly better or worse from one ...
The relatively flat plains in northern parts of Mars strongly contrast with the cratered terrain in southern highlands – this terrain observation is known as the Martian dichotomy. Mars hosts many enormous extinct volcanoes (the tallest is Olympus Mons , 21.9 km or 13.6 mi tall) and one of the largest canyons in the Solar System ( Valles ...