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Heat Control Devices of the Past
2017 Nov 23
è stata creata
Eric Wang
⟶ è stato aggiornato 24 nov 2017 ⟶
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Commenti
Eventi
Rounded blades began to appear
Emerson Electric introduced the silver swan
Philip Diehl patented the ceiling fan
Air Conditioning was invented by Willis Carrier, which decreased the popularity of fans
Fans with more than 2 blades were produced
Oscillating Fans began to appear
Periodi
Fans were made for residential use.
WWII, Fan makers stopped production so resources could be used on the war
Schyular Skaats Wheeler invented the first electric fan. It had two blades, powered by an electric motor
Fans with overlapping blades were invented
During WWI, fans were hard to make due to brass shortages from ammunition production
