Learn how to propel a pen...

Channel: Misc

Watched 3094 times.

Tags: propel | pen | finger | spin | cool | must | see | how

A couple of chemistry students decide to strap a D-12 engine to a lego car. The thing takes off almost nailing one of the guys at the end of the clip.

Channel: Strange

Watched 11241 times.

Tags: inventions

This is the new butane-propelled rocket engine NASA is going to use for their new aircrafts.

Channel: Science and Technology

Watched 1169 times.

Tags: nasa | jet | engine