3 articles
Artificial gravity
Artificial gravity, also called simulated gravity, simulates gravity in space by spinning a craft so centrifugal acceleration acts as gravity; proposed to counter weightlessness, it has never flown operationally.
O'Neill cylinder
The O'Neill cylinder is a proposed rotating space habitat, conceived by Princeton physicist Gerard K. O'Neill in 1969, in which people live on the inner surface of spinning cylinders.
Stanford torus
The Stanford torus is a wheel-shaped space habitat design from a 1975 NASA study: a rotating ring about 1.8 km across providing Earth-normal gravity for 10,000 residents.