Browse 478 videos in category Documentary
How do people count cash?
Published 4 years ago in Documentary
A nice overview of several cash-counting-methods. I'm not sure wether this is completely true though.
- 19186 views
- 31 comments
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Make your own spy sunglasses for $40
Published 4 years ago in Documentary
This video explains how to make your own 007-like spy (video/audio-recording) sunglasses 
- 19175 views
- 9 comments
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Traveling through time
Published 4 years ago in Documentary
For years we have wondered if time travel is possible. Meet a man who claims to have done it and met his future self.
- 18849 views
- 33 comments
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Multi-touch whiteboard using the Wii Remote
Published 4 years ago in Documentary. Submitted by Jos
A explanation of how to build a cheap multi-touch whiteboard using a Wii Remote.
- 18787 views
- 10 comments
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How to balance two forks on a toothpick
Published 5 years ago in Documentary
A simple but impressive physics trick from 5min. Can be done by everyone 
- 18415 views
- 12 comments
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