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[6] [73] Willy Ley's 1937 short story "At the Perihelion" involves a close approach to the Sun as part of an escape from Mars, [4] [5] [74] and Charles L. Harness's 1949 novel The Paradox Men (a.k.a. Flight into Yesterday) is a space opera that climaxes with a swordfight atop a space station on the surface of the Sun. [4] [5] [75] [76] In Ray ...
This manifold is often called the moduli space of vacua, or just the moduli space, for short. The term moduli is also used in string theory to refer to various continuous parameters that label possible string backgrounds : the expectation value of the dilaton field, the parameters (e.g. the radius and complex structure) which govern the shape ...
The moduli space is, therefore, the positive real numbers. Moduli spaces often carry natural geometric and topological structures as well. In the example of circles, for instance, the moduli space is not just an abstract set, but the absolute value of the difference of the radii defines a metric for determining when two circles are "close". The ...
Space travel, [1]: 69 [2]: 209–210 [3]: 511–512 or space flight [2]: 200–201 [4] (less often, starfaring or star voyaging [2]: 217, 220 ) is a science fiction theme that has captivated the public and is almost archetypal for science fiction. [4] Space travel, interplanetary or interstellar, is usually performed in space ships, and ...
Several stories within the One Thousand and One Nights (Arabian Nights, 8th–10th centuries CE) also feature science fiction elements.One example is "The Adventures of Bulukiya", where the protagonist Bulukiya's quest for the herb of immortality leads him to explore the seas, journey to the Garden of Eden and to Jahannam (Islamic hell), and travel across the cosmos to different worlds much ...
Solar physics is the branch of astrophysics that specializes in the study of the Sun.It intersects with many disciplines of pure physics and astrophysics.. Because the Sun is uniquely situated for close-range observing (other stars cannot be resolved with anything like the spatial or temporal resolution that the Sun can), there is a split between the related discipline of observational ...
Science fiction genre – while science fiction is a genre of fiction, a science fiction genre is a subgenre within science fiction. Science fiction may be divided along any number of overlapping axes. Gary K. Wolfe's Critical Terms for Science Fiction and Fantasy identifies over 30 subdivisions of science fiction, not including science fantasy ...
The Sun is the star at the center of the Solar System.It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.