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The device uses two hyperbolic mirrors (in contrast to Wells's Heat-Ray, which uses a parabolic mirror) to concentrate light rays in a parallel beam. Larger "hyperboloids" can destroy military ships on the horizon, and those of less power can only injure people and cut electric cables on walls of rooms.
Parabolic reflectors are popular for use in creating optical illusions. These consist of two opposing parabolic mirrors, with an opening in the center of the top mirror. When an object is placed on the bottom mirror, the mirrors create a real image, which is a virtually identical copy of the original that appears in the opening. The quality of ...
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 ...
In fact at fifteen I was grinding parabolic mirrors for my amateur telescope." [2] In the 1930s, he married Joey and fathered two children, Richard and Joanne; he now has three grandchildren and three great-grandchildren. He earned an M.A. at UCLA. He published his first science fiction story, entitled "Music of the Spheres" in Amazing Stories ...
By using two parabolic cylindric mirrors and one plane mirror, the image of the background is directed around an object, making the object itself invisible - at least from two sides. Invisibility is the state of an object that cannot be seen. An object in this state is said to be invisible (literally, "not visible").
Newtonian telescope design. A Newtonian telescope is composed of a primary mirror or objective, usually parabolic in shape, and a smaller flat secondary mirror.The primary mirror makes it possible to collect light from the pointed region of the sky, while the secondary mirror redirects the light out of the optical axis at a right angle so it can be viewed with an eyepiece.
Science Fiction: The 100 Best Novels, An English-Language Selection, 1949–1984 is a nonfiction book by David Pringle, published by Xanadu in 1985 [1] [2] with a foreword by Michael Moorcock. Primarily, the book comprises 100 short essays on the selected works, covered in order of publication, without any ranking.
The multiverse is a series of parallel universes in many of the science fiction and fantasy novels and short stories written by Michael Moorcock [1] [2] [3] [4] (many ...