1.  Begin your study guide….5+ points

2.  It is a piece of equipment that puts objects into rotation  Used to separate the different parts of blood  DNA  Uranium enrichment U-238 to get U-235  the fat from milk

3.  The use of large centrifuges to simulate a feeling of gravity has been proposed for future long- duration space missions.  Exposure to this simulated gravity would prevent or reduce the bone deterioration and muscle atrophy that affect individuals exposed to long periods of freefall. [ [

6.  Just like the gravitron…a rotating object will be pressed to the outer wall, inertia simulates (feels like) gravity

7.  The speed of the rotation controls the amount of “artificial gravity”  http://www.youtube.com/watch?v=JH8FiW1 _hjs http://www.youtube.com/watch?v=JH8FiW1 _hjs

9.  Small structures would have to rotate very fast to create 1 g  Most people can’t tolerate fast rotations…3 rpm (max)  Sooo…to get 1 g at 1 rpm would need a very large structure..2 km in diameter

11.  What is a piece of equipment that puts objects into rotation?  What is the purpose of a human centrifuge?  How is gravity simulated?  Centrifuge  To simulate (make it feel like) gravity  Revolve a spaceship

12.  Would a space station need to be a certain size?  Why is such a large structure needed for a space station?  Is there a place on the space station where you would experience 0.5g?  Yes, it will have to be at least 2 km across  To decrease the # rpm  ½ way to the center