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171:. In contrast with the Alderson disk, the Aysle "diskworld" works according to fantasy physics, including a "gravity plane" that bisects the disk laterally, so that opposite sides "fall" towards the plane. The diskworld of Aysle had a bobbing Sun and multiple inner layers. Both sides of the disk were inhabited, as were the internal layers.
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Life could exist on either side of the disk, though life in close proximity to the sun would be impossible without sufficient heat protection. Conversely, beings residing far away from the Sun would freeze without the requisite heating equipment. Therefore, for the entirety of such a structure to be
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novel. The atmosphere is right, and there are real monsters." Because the zone habitable by humans is 'relatively narrow' (5% closer in and farther out than Earth's current orbit would provide 50 million times the surface area of Earth), the disc (and the cost of its construction) could be shared
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with aliens from hotter and colder planets. Over long periods of time, lifeforms would evolve to settle the sparsely-inhabited regions in between. "If civilization should fall, things could get eerie and interesting."
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until materials and construction science become sufficiently advanced. Building a megastructure of this magnitude would require an amount of material that far surpasses the amount of material found in the
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made habitable, it would have to include a vast number of life support systems. Even without such systems, the habitable surface area would be an equivalent of tens to hundreds of millions of Earths.
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features a parallel-universe version of our solar system where creatures evolved from dinosaurs have converted all the mass to an
Alderson disk (with a bobbing sun).
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the concept of an
Alderson disk is brought up by the protagonist, Kin Arad, as an explanation for the mysterious 'flat earth' that is the focus of the story.
231:, the planet of Penacony is actually a large artificial space station-like megastructure housing a hotel surrounded by two small Alderson disks orbiting it.
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The hole would be surrounded by a thousand-mile-high wall to prevent the atmosphere from drifting into the Sun. The outer rim would not require a wall.
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A disk-shaped planet similar to an
Alderson disk (though far smaller) served as the homeworld of the fantasy "Aysle" setting (or "cosm") of
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rests in the hole at the center of the disk. The outer perimeter of an
Alderson disk would be roughly equivalent to the orbit of
184:, a copy of the whole Earth (along with copies of many other planets) is placed on an Alderson disk built around a black hole by
144:(each occupied its own side of the disk). Larry Niven designed the Godwheel and wrote stories surrounding certain events on it.
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within the disc would be far beyond what any known material can stand, thus relegating such a structure to the realm of
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104:. This could be solved by forcing the Sun to bob up and down within the disk, lighting first one side then the other.
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writer Larry Niven suggested that an
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In
Gigastructural Engineering & More, a popular modification to the 4X game
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Rak Mesba is a partial ancient alien
Alderson Disk in
478:"Megastructures – A Sign of Larger than Life Aliens?"
362: – Hypothetical artificial modification of stars
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380: – Hypothetical planetary engineering process
344: – Influencing a planet's global environments
350: – 1970 science fiction novel by Larry Niven
58:with a thickness of several thousand miles. The
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515:. New York: Ballantine Books. pp. 123–124.
332: – Huge computer powered by a star's energy
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35:, its originator) is a hypothetical artificial
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23:A schematic illustration of an Alderson disk
579:: CS1 maint: numeric names: authors list (
455:"Could We Build a Disk Bigger Than a Star?"
400:"Could We Build a Disk Bigger Than a Star?"
16:Hypothetical artificial solar megastructure
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562:. Orion's Arm Universe Project
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132:) was a prominent feature of
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482:interestingengineering.com
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207:'s science fiction novel
616:Exploratory engineering
541:Playgrounds of the Mind
86:exploratory engineering
54:. The disk is a giant
560:Encyclopedia Galactica
505:Niven, Larry (1974). "
426:Wegert, David (2014).
249:Science Fiction portal
128:An Alderson disk (the
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342:Planetary engineering
336:Megascale engineering
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534:(1974), and is also
457:. Popular Mechanics
360:Stellar engineering
140:and one which used
507:Bigger Than Worlds
277:Spaceflight portal
263:Engineering portal
197:Empress of the Sun
108:In popular culture
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122:sword and sorcery
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564:. Retrieved
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536:anthologised
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485:. Retrieved
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459:. Retrieved
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409:. Retrieved
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378:Terraforming
366:Tabby's Star
354:Star lifting
300:Dyson sphere
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225:In the game
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192:Ian McDonald
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91:Solar System
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52:Dyson sphere
37:astronomical
33:Dan Alderson
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601:Orion's Arm
556:"Rak Mesba"
411:23 December
181:Missile Gap
149:Orion's Arm
44:Larry Niven
610:Categories
597:Diskworlds
566:2019-06-20
522:0345240111
386:References
372:Tensegrity
306:Dyson tree
138:technology
348:Ringworld
219:Stellaris
194:'s novel
155:project.
48:Ringworld
575:cite web
532:magazine
487:April 2,
461:April 2,
235:See also
130:Godwheel
102:twilight
82:stresses
50:and the
68:Jupiter
56:platter
42:, like
530:Analog
519:
436:
210:Strata
118:gothic
142:magic
581:link
517:ISBN
489:2023
463:2023
434:ISBN
413:2016
165:Torg
72:mass
64:Mars
599:at
538:in
509:".
203:In
178:'s
174:In
120:or
66:or
60:Sun
46:'s
27:An
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577:}}
573:{{
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