How to Make a Vacuum Cannon
Click to go to article's parent site->>How to Make a Vacuum Cannon
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 | To learn how I made the vacuum pump used to operate this cannon, take a look at this video: http://youtu.be/UkPLu6mgdWA A vacuum cannon is an interesting phy... | From: NightHawkInLight Views: 396194   3636 ratings |
| Time: 06:49 | More in Howto & Style |
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