Bartosz Ciechanowski has released a detailed technical breakdown of the internal combustion engine through interactive animations. Rather than relying on static diagrams, the piece uses moving models to explain how linear force converts into rotational torque. By starting with a simple crank and moving toward complex assemblies, the author makes mechanical engineering accessible.

The explanation follows the lifecycle of a four-stroke cycle, detailing the intake, compression, power, and exhaust phases. It clarifies how a piston moves within a cylinder to harness gas expansion. This step-by-step approach helps readers visualize how valves and crankshafts coordinate to maintain continuous motion during the combustion process.

Moving beyond single cylinders, the guide explores the architecture of an inline four cylinder engine. It covers essential components like the engine block, cooling passages, and crankshaft journals. This level of detail provides a clear look at how engineers manage vibrations and thermal loads in modern automotive machinery.