9 great mechanical principles and inventions !

 

 

Here are 9 great mechanical principles and inventions, which show the greatness of the human mind. 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 Fm 7: Gun Ammunition loading system 8: Rotary Engine - an internal combustion engine, the heat rather than the piston movement into rotary movement 9: BUT, leaving the best of ALL till last...