What are the physics behind the flight of helicopter? What sorcery is this???
Luckily, I found this article on the great blog Geeks Are Sexy.
I would simply take the same word again: the guy is brilliant! Just watch.
First: introduction to the physics
Then the controls for the pilot
Check the swash plate
The not-so-easy gyroscopic precession
Aaaaand last but not least: more explanation concerning the application of the gyroscopic precession. One key to understand: notice that the laser is placed with an angle of 90° to the normal position of the blade.
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