An old non-electric fan from 1870

This is a mousetrap from 1862 and it's the most American thing ever

This is a stirling engine. Super fun but adds more heat to the room🤫

Bro was like, "what's that small paw touching me?". 😅

This is a Westinghouse gyro ceiling fan copper oxide finish from 1920

This is Stirling engine fan. These engines use heat differentials to create motion and were a popular way to power fans before electricity It simply uses heat to expand and contract a gas, which drives a piston to create motion. The cycle of heating, expansion, cooling and compression repeats, creating continuous motion to power the fan.

An old Can opener from 1889

Stirling Engine. Works based on a temperature differential, so it can run faster with an ice pack on the top side of the piston. Source: made one of these engines in an undergrad manufacturing course.

it's hot here, let's start a fire! 🔥

It’s a fan powered by a stirling engine, not electricity. It is operated by the cyclic compression and expansion of air or other gas.

Wouldn’t this produce hot air? On 90 degree days when you need the fan the most…