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1 janv. 1970 - Exxon lowerd the cost of solar cells
Description:
Exxon funded research of Dr.Elliot Bernam to prodice a cheaper solar cell. The cost was brought down from $300 to about $20 per watt.
Ajouté au bande de temps:
12 nov. 2018
0
0
305
econ
Date:
1 janv. 1970
Maintenaint
~ Il y a 54 ans