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The sound barrier or sonic barrier is the large increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound. When aircraft first approached the speed of sound, these effects were seen as constituting a barrier, making faster speeds very difficult or impossible.
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed of sound in air, is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.91 s or one mile in 4.69 s.
John Derry, another de Havilland test pilot, has been called "Britain's first supersonic pilot", because of a dive he made on 6 September 1948 in a DH 108. [11] Contrary to what is depicted in the film, the first aircraft to break the sound barrier was the rocket-powered Bell X-1 flown by Chuck Yeager of the United States Air Force in 1947.
The term tachyon comes from the Greek: ταχύς, tachus, meaning swift. [6]: 515 The complementary particle types are called luxons (which always move at the speed of light) and bradyons (which always move slower than light); both of these particle types are known to exist.
British science fiction writer Arthur C. Clarke formulated three adages that are known as Clarke's three laws, of which the third law is the best known and most widely cited. They are part of his ideas in his extensive writings about the future.
Beyond the Time Barrier is a 1960 American science fiction film. It was released in September 1960 on a double bill with The Angry Red Planet. [3] It starred Robert Clarke (who also served as producer) and directed by Edgar G. Ulmer. Ulmer's wife Shirley acted as a script editor while their daughter Arianne Arden appeared as a Russian pilot.
Eon is a science fiction novel by American author Greg Bear published by Bluejay Books in 1985. Eon was nominated for an Arthur C. Clarke Award in 1987. [ 1 ] It is the first novel in The Way series; followed by Eternity .
Science in science fiction is the study or of how science is portrayed in works of science fiction, including novels, stories, and films. It covers a large range of topics. Hard science fiction is based on engineering or the "hard" sciences (for example, physics, astronomy, or chemistry).