Heat Control Devices of the Past
Category: Иное
Обновлено: 24 ноя 2017
2017 Nov 23
Авторы
Created byEric Wang
Attachments
События
Rounded blades began to appearEmerson Electric introduced the silver swanPhilip Diehl patented the ceiling fanAir Conditioning was invented by Willis Carrier, which decreased the popularity of fansFans with more than 2 blades were producedOscillating Fans began to appearПериоды
Fans were made for residential use.WWII, Fan makers stopped production so resources could be used on the warSchyular Skaats Wheeler invented the first electric fan. It had two blades, powered by an electric motorFans with overlapping blades were inventedDuring WWI, fans were hard to make due to brass shortages from ammunition production
Comments