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On Unix-like systems, or on MS-DOS or Windows, a user can cause the equivalent of ringing the bell to happen by typing at the command prompt the command: echo ^G where the ^G is produced by holding down Ctrl and typing G. On Unix the user may need to type Ctrl+ V first to "quote" the ^G. On POSIX systems, one may also use: printf '\a'
For urgent orders requiring rapid acceleration, the handle is moved three times so that the engine room bell is rung three times. This is called a "cavitate bell" because the rapid acceleration of the ship's propeller will cause the water around it to cavitate, causing a lot of noise and wear on the propellers. Such noise is undesirable during ...
Bell XP-77: 1944 2 Prototype single piston engine fighter Bell XP-83: 1945 2 Prototype twin jet engine escort fighter Bell 47: 1945 5,600 Single piston engine helicopter Bell D-35: 1945 0 Twin engine flying wing fighter with reaction jet for aircraft control Bell X-1: 1946 7 Experimental single rocket engine airplane Bell XH-15: 1948 3
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Die Glocke (German: [diː ˈɡlɔkə], 'The Bell') was a purported top-secret scientific technological device, wonder weapon, or Wunderwaffe developed in the 1940s in Nazi Germany. Rumors of this device have persisted for decades after WW2 and were used as a plot trope in the fiction novel Lightning by Dean Koontz (1988).
The Bell P-76 was a single-engine fighter aircraft prototype – an improved version of the Bell P-39 Airacobra, designed during World War II. The design, which was initially designated XP-39E , never entered production
The Bell D-188A (unofficial military designations XF-109/XF3L) was a proposed eight-engine Mach 2–capable vertical take-off and landing (VTOL) tiltjet fighter that never proceeded past the mock-up stage.
A typical volume of Bell System Practices from the 1970s. The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories. [1]