Nine Greatest Mechanical Principles and Inventions

Here are the 9 greatest mechanical principles and inventions, which show the greatness of the human mind.

Simple animation to explain complex principles:

1: Aircraft Radial Engine

2: Oval Regulation

3: Sewing Machines

4: Malta Cross movement - second hand movement used to control the clock

5: Auto Change file mechanism

6: Auto Constant Velocity Universal Joint

7: Gun Ammunition loading system

8: Rotary Engine - an internal combustion engine,
the heat rather than the piston movement into rotary movement

9: Engine - it's cylinders lined up side by side