http://www.ufos-aliens.co.uk/cosmicapollo.html

Scroll down to this chapter:

How did NASA recreate the effects of weightlessness???

and click on the video to the left. At the very end of the video you´ll see how the astronaut falls down on the ground and is jerked upp on his feet, without pushing himself up.

A puppet on a string.

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I still await the compelling Exhibit A.