Isaac Newton vs. Rube Goldberg

Or Laws Of Motion & Gravity vs. a comically involved, complicated invention, laboriously contrived to perform a simple operation, usually involving a chain reaction.

All makes sense at around 30secs.

Here is Red Bull's version. **Warning** Includes Free Running.

Found on B3ta.com

10,000ft Downhill On Mountain Bike

Weeeeeeeeeeeeeeeeeeeeee!! Another win for Red Bull marketing.