Artificial gravity ```Name: Nick Passmore Status: Other Age: N/A Location: N/A Country: N/A Date: N/A ``` Question: Is there a formula for artificial gravity? Replies: The only "artificial gravity" I am aware of is that due to the centripetal acceleration of rotation = v^2 / r = w^2 * r where r = radius, v = velocity, w = angular velocity. So, if your space station had a radius of, say, 100 m (pretty big), then it would have to rotate at w = sqrt(g / r ) to give the same acceleration as gravity at the Earth's surface (g = 9.8 m/sec^2 ): w = sqrt( 9.8 m/sec^2 / 100 m ) = 0.32 rad/sec = 0.05 rev/sec or 3 revolutions per minute. ( 1 rad (radian) = 1 revolution (circle) / 2*PI rad/circle ) Incidentally, one of the scenarios for the Mission to Mars has the manned spacecraft attached to an auxiliary mass with a tether, the whole system rotating about the center of mass, giving the marstronauts some artificial gravity on their long trip to Mars. Hawley Click here to return to the Astronomy Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs