https://padlet.com/blovell2/brlgzqkcboax Made with a wish on a star en-us 2018-10-23 17:12:23 UTC 2018-10-24 17:25:51 UTC hello@padlet.com blovell2 https://padlet.com/blovell2/brlgzqkcboax/wish/296085212 1839: Edmond Becqueral discovers voltage is created when light hits a certain material. 
1883: Charles Fritts makes a solar cell that has a 1% efficiency (made from selenium and a thin layer of gold) 
1954: David Chaplin, Calvin Fuller, and Gerald Pearson create Photovoltaics  (turn 4% to 11% efficiency) 
1955: solar cells are sold commercially at $25 per cell (if sold at modern day they would cost $4 million) 
1985: many things are being solar powered like cars, communication satellites, spacecraft and commercial buildings 
2001: Australia starts to use solar power has a main energy source
2015: almost all of Australia runs off of solar energy, and is one of the cheapest forms of energy.

]]> 2018-10-23 17:18:34 UTC https://padlet.com/blovell2/brlgzqkcboax/wish/296085212