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Artificial gravity, or rotational gravity, is thus the appearance of a centrifugal force in a rotating frame of reference (the transmission of centripetal acceleration via normal force in the non-rotating frame of reference), as opposed to the force experienced in linear acceleration, which by the equivalence principle is indistinguishable from ...
2019: The video game Outer Wilds features multiple: the base game contains a rotating gravity wheel inside of a planet to maintain a gravitational pull within the planet's center. The 2021 DLC Echoes of the Eye features a planet-sized, wheel-shaped starship that rotates to create artificial gravity.
Earth's gravity is a bit stronger at the poles than at the equator, because the Earth is not a perfect sphere, so an object at the poles is slightly closer to the center of the Earth than one at the equator; this effect combines with the centrifugal force to produce the observed weight difference.
Ships in the Expanse series by James S. A. Corey make use of constant acceleration drives, which also provide artificial gravity for the occupants. In The Martian, by Andy Weir, the spaceship Hermes uses a constant thrust ion engine to transport astronauts between Earth and Mars.
If α is initially not 180° at low ε (quasi-circular orbits) then, in general, α will equal 180° only for isolated values of ε; a randomly chosen value of ε would be very unlikely to give α = 180°. Therefore, the observed slow rotation of the apsides of planetary orbits suggest that the force of gravity is an inverse-square law.
The centrifuge would have provided controlled acceleration rates (artificial gravity) for experiments and the capability to: Expose a variety of biological specimens that are less than 24.5 in (0.62 m) tall to artificial gravity levels between 0.01g and 2g. Simultaneously provide two different artificial gravity levels.
Different types of forces, including linear acceleration and centripetal force, can be used to generate this artificial gravitational force. [2] The use of artificial gravity to counteract simulated microgravity (e.g. bed rest) on Earth has been shown to have conflicting results for the maintenance of bone, muscle, and cardiovascular systems.
Gravity is usually measured in units of acceleration.In the SI system of units, the standard unit of acceleration is metres per second squared (m/s 2).Other units include the cgs gal (sometimes known as a galileo, in either case with symbol Gal), which equals 1 centimetre per second squared, and the g (g n), equal to 9.80665 m/s 2.