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PUBLIC MARKS from frisch with tags part & test

20 March 2007

Crash Padding

by 3 others
What a helmet can do is spread out and slow down the impact forces of a sharp blow to the head, which helps prevent the brain from banging around as violently inside your skull. The outer helmet shell is important, since it spreads the blow over a wider a

18 February 2007

Shuttle/ISS Orbital Simulator

3. Devise a plan for positioning the Shuttle (green object) so that it is within 100 km of the ISS (red object) and also traveling at the same speed.

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