Simple animations to explain complex engineering principles:

Aircraft Radial Engine
(Wikipedia)
Radial Engine
Oval Regulation
Oval Regulation
Sewing Machines
(Wikipedia)
Sewing Machine
Malta Cross Movement
(Wikipedia)
Malta Cross Movement
Auto Change Gear Mechanism
(Wikipedia)
Auto Change Gear Mechanism
Auto Constant Velocity Universal Joint
(Wikipedia)
Auto Constant Velocity U-Joint
Naval Gun Ammunition Loading System
Navel Gun Loading System
Rotary Engine
(Wikipedia)
Rotary Engine
Inline Engine
Cylinders lined up side by side

Inline Engine
Two-Stroke Engine
(Wikipedia)
Two-Stroke Engine
Steam Engine
(Wikipedia)
Steam Engine
Stirling Engine
(Wikipedia)
Stirling Alpha Engine Alpha Engine  Stirling Beta EngineBeta Engine

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