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{{ | {{Era|Forerunner|Covenant|Human|UNSC|HCW|Post}} | ||
'''Artificial gravity''' | '''Artificial gravity''' is employed by the [[United Nations Space Command|UNSC]], [[Covenant Empire|Covenant]] and the [[Forerunner]], to generate gravity of varying strengths in an otherwise zero or low-gravity environment.<ref>[[Wikipedia:Artificial gravity#Centrifugal Force|'''Wikipedia''': Artificial Gravity'']]</ref> | ||
==Centrifugal force== | ==Centrifugal force== | ||
A number of UNSC ships employ rotating sections of the hull to provide centrifugal force on the interior of the hull to allow comfortable movement in "gravity." | A number of UNSC ships employ rotating sections of the hull to provide centrifugal force on the interior of the hull to allow comfortable movement in "gravity." Carriers are able to adjust the rate of rotation, allowing more or less gravity, and a number of other ship classes, such as [[Halcyon-class cruiser|Halcyon-class Cruisers]], also used rotating sections before the introduction of more advanced gravity plating. The rate of spin for many of the smaller UNSC ships would have to be quite low (2 RPMs or lower) to prevent the crew from getting dizzy and nauseated due to the Coriolis effect. This means that the "gravity" produced by the rotating sections of most UNSC ships would be well below 1g. Space stations and colonies at least a mile in diameter would likely be able to produce 1g. But this style of artificial gravity fails to explain how an [[elevator]] can run through it and how you traverse out of the rotating section, something that occurs multiple times in the novels. | ||
The [[Halo Array|Halo | The [[Halo Array|Halo Installations]] rotate,<ref>'''[[Halo: The Flood]]''', ''page ??''</ref> and may use centrifugal force to provide at least part of their Earth-like gravity, possibly employing the same gravity generation techniques used by the Covenant, or another method, to generate the rest. | ||
==Non-centrifuge artificial gravity devices== | ==Non-centrifuge artificial gravity devices== | ||
===Covenant=== | ===Covenant=== | ||
Almost all Covenant vessels employ some sort of artificial gravity mechanism that does not involve rotating hull sections or acceleration. Instead, their method allows for the generation of actual gravity. | Almost all Covenant vessels employ some sort of artificial gravity mechanism that does not involve rotating hull sections or acceleration. Instead, their method allows for the generation of actual gravity. It has been speculated that they may use [[Wikipedia:Diamagnetism|diamagnetism]], but this is very unlikely: though there would be no known adverse health effects, it would mean that the entire ship would have to be made of non-magnetic materials, have heavily shielded electronic equipment and the crew would not be able to use anything made of metal. The use of ultra-dense materials which generate their own gravity has been suggested, but this would make the ship incredibly heavy and massive. Considering the UNSC still use some form of reaction/rocket propulsion, it seems rather unlikely that this would be the case. | ||
The most likely explanation is that the Covenant have developed some form of directional gravity emitter that generates a beam of gravitons. This would mean the Covenant are able to generate gravity without mass. It is possible that the Covenant have figured out a way to convert energy into graviton particles and direct them in much the same way as a beam of light; this seems to be the basis for the Covenant's | The most likely explanation is that the Covenant have developed some form of directional gravity emitter that generates a beam of gravitons. This would mean the Covenant are able to generate gravity without mass. It is possible that the Covenant have figured out a way to convert energy into graviton particles and direct them in much the same way as a beam of light; this seems to be the basis for the Covenant's gravity lift. The production of "antigravitons" would create a repulsive effect, which may be the basis for some of their antigravity drives. All this suggests the Covenant are able to produce gravity and antigravity as easily as humans can produce positive and negative electric current. | ||
===Human=== | ===Human=== | ||
While some human ships used rotating centrifuges to mimic gravity, humans did possess a form of artificial gravity even prior to their contact with the Covenant. This is demonstrated by the [[UNSC Department of Commercial Shipping|DCS]] [[ | While some human ships used rotating centrifuges to mimic gravity, humans did possess a form of artificial gravity even prior to their contact with the Covenant. This is demonstrated by the [[UNSC Department of Commercial Shipping|DCS]] [[freighter]]s enabling artificial gravity through "anti-gravity units" and the orbital platform ''[[Tiara]]'' having artificial gravity without the use of rotating sections.<ref>'''[[Halo: Contact Harvest]]''', ''page 68''</ref><ref>'''Halo: Contact Harvest''', ''page 125''</ref> Additionally, many ship classes commissioned before the Human-Covenant War, including [[Halcyon-class cruiser|''Halcyon''-class cruisers]] and [[Phoenix-class colony ship|''Phoenix''-class colony ships]] were known to have a form of artificial gravity other than spinning sections. | ||
It may be that [[antigravity plate]]s were related to tests with artificial gravity. Since the antigrav plate had a crushing or repulsive effect, and it was described as generating a beam, it most likely generated directed antigravitons.<ref>'''[[Halo: Ghosts of Onyx]]'''</ref> | It may be that [[antigravity plate]]s were related to tests with artificial gravity. Since the antigrav plate had a crushing or repulsive effect, and it was described as generating a beam, it most likely generated directed antigravitons.<ref>'''[[Halo: Ghosts of Onyx]]'''</ref> | ||
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==Trivia== | ==Trivia== | ||
In all of the ''Halo'' games, all human vessels or stations seem to employ sophisticated, unseen artificial gravity generators to simulate gravity, as opposed to rotating sections. Originally, it was widely assumed that the UNSC gained their current artificial gravity technology from the Covenant, and had to use rotating centrifuges to mimic gravity prior to this. According to ''[[Halo: The Fall of Reach]]'', human ships were still undergoing tests with reverse-engineered artificial gravity by 2552, while newer sources such as ''[[Halo: Contact Harvest]]'' portray artificial gravity present even on automated freighters. | *In all of the ''Halo'' games, all human vessels or stations seem to employ sophisticated, unseen artificial gravity generators to simulate gravity, as opposed to rotating sections. Originally, it was widely assumed that the UNSC gained their current artificial gravity technology from the Covenant, and had to use rotating centrifuges to mimic gravity prior to this. According to ''[[Halo: The Fall of Reach]]'', human ships were still undergoing tests with reverse-engineered artificial gravity by 2552, while newer sources such as ''[[Halo: Contact Harvest]]'' portray artificial gravity present even on automated freighters. | ||
==Sources== | ==Sources== | ||
<references/> | |||
==Related links== | ==Related links== |