Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.
Horsepower (hp) is a measure of the output power of a device, defined as work performed over time. The concept of horsepower was first developed by Scottish engineer James Watt (1736–1819). Watt had invented a type of steam engine based on rotary motion (the rotation of a wheel about an axis). He wanted to market the engine as a replacement for horses, which were then used to power mills and water pumps. To do so, Watt had to compare the performance of his engine to that of the horses.
Salem Press Encyclopedia of Science, 2019. 2p.
