= Timeline of heat engine technology
{wiki=Timeline_of_heat_engine_technology}
The development of heat engine technology has a rich history, reflecting advancements in physics, engineering, and materials science. Below is a general timeline highlighting key milestones in the evolution of heat engines: **Ancient and Early Modern Period:** - **9th Century**: The first known steam engine, described by the Greek engineer Hero of Alexandria, used steam pressure to perform work. - **17th Century**: Giovanni Branca built a steam engine that utilized steam to turn a wheel.
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