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Dual control theory is a branch of control theory that deals with the control of systems whose characteristics are initially unknown. [1] [2] It is called dual because in controlling such a system the controller's objectives are twofold: (1) Action: To control the system as well as possible based on current system knowledge
In science fiction, a higher "dimension" often refers to parallel or alternate universes or other imagined planes of existence. This usage is derived from the idea that to travel to parallel/alternate universes/planes of existence one must travel in a direction/dimension besides the standard ones.
The Light of Other Days is a 2000 science fiction novel written by Stephen Baxter based on a synopsis by Arthur C. Clarke, [1] which explores the development of wormhole technology to the point where information can be passed instantaneously between points in the spacetime continuum.
"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 ...
American science fiction author and editor Lester del Rey wrote, "Even the devoted aficionado or fan—has a hard time trying to explain what science fiction is," and the lack of a "full satisfactory definition" is because "there are no easily delineated limits to science fiction." [3] Another definition comes from The Literature Book by DK and ...
The first alien hive society was depicted in H. G. Wells's The First Men in the Moon (1901) while the use of human hive minds in literature goes back at least as far as David H. Keller's The Human Termites (published in Wonder Stories in 1929) and Olaf Stapledon's science-fiction novel Last and First Men (1930), [5] [6] which is the first known ...
Dorsai! is the first published book of the incomplete Childe Cycle series of science fiction novels by American writer Gordon R. Dickson. Later books are set both before and after the events in Dorsai!. The novel was originally published in serialized form in Astounding Science Fiction, starting in May 1959.
Tunnel in the Sky is a juvenile science fiction novel by American writer Robert A. Heinlein, published in 1955 by Scribner's as one of the Heinlein juveniles.The story describes a group of students sent on a survival test to an uninhabited planet, who soon realise they are stranded there.