Internal Combustion Engine

The article explains how internal combustion engines work by building up from basic mechanical principles. It begins with a simple crank mechanism that converts linear force into rotational motion, then demonstrates how controlled explosions (similar to a cannon) can be harnessed using a piston and crankshaft to create continuous rotational power. The text emphasizes the need for repeated combustion cycles using fluid fuels and valve systems to make engines practical for sustained operation.