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Re: RollerCoasters | ||
Posted By: Ahruman | Date: 12/14/01 8:36 a.m. | |
In Response To: Re: RollerCoasters (Steve Levinson) : Sorry, but you're talking to a physician and an engineer (I was an
Sorry, but you're wrong. I've been in a sufficiently fast centrifuge for the floor level to be non-tangiental to gravity, and apart from the weird visual effects it felt like accelerating upwards (or higher gravity). Similar mechanisms are used by pilots and astronauts to train for high linear accelerations. The inner ear measures angular acceleration (torque? can't remember the English terminology), not angular velocity. if you work out the forces acting on someone standing in a centrifuge in a 0-g environment, then _with respect to the person, who is also rotating_, the resultant force is outwards, and the outside of the centrifuge becomes the floor. The effect is indistinguishable from acceleration or gravity for any given point, although of course for a larger area it is appearant that one is inside a cylinder (just as acceleration is a plane, and gravity is the outside of a sphere). Also, there will be strange visual effects (people walking on the floor and cieling). |
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