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Define ℓ as the mean longitude, the angular distance of the body from the same reference direction, assuming it moves with uniform angular motion as with the mean anomaly. Thus mean anomaly is also [6] = . Mean angular motion can also be expressed, = , where μ is the gravitational parameter, which varies with the masses of the objects, and a ...
Golden Age of Science Fiction — a period of the 1940s during which the science fiction genre gained wide public attention and many classic science fiction stories were published. New Wave science fiction — characterised by a high degree of experimentation, both in form and in content.
Science Fantasy or Sci-Fan, is a hybrid genre within speculative fiction that simultaneously draws upon or combines tropes and elements from both science fiction and fantasy.[1] In a conventional science fiction story, the world is presented as being scientifically logical, while a conventional fantasy story contains mostly supernatural and ...
Science fiction (sometimes shortened to sci-fi or abbreviated SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel universes, and extraterrestrial life.
A science fiction video game is a video game that falls under the science fiction genre. The genre has existed since the dawn of video games, with their evolution being shaped heavily by it. [1] Spacewar! (1962), one of the first video games ever made, was science fiction-themed.
Many of the most enduring science fiction tropes were established in Golden Age literature. Space opera came to prominence with the works of E. E. "Doc" Smith; Isaac Asimov established the canonical Three Laws of Robotics beginning with the 1941 short story "Runaround"; the same period saw the writing of genre classics such as the Asimov's Foundation and Smith's Lensman series.
Spy-fi is a subgenre of spy fiction that includes elements of science fiction, and is often associated with the Cold War. [1] [2] [3] [4] [5] Features of spy-fi ...
"A science fiction story is a story built around human beings, with a human problem, and a human solution, which would not have happened at all without its scientific content." [13] Basil Davenport. 1955. "Science fiction is fiction based upon some imagined development of science, or upon the extrapolation of a tendency in society." [14] Edmund ...