Activity for Echo61505‭

Type	On...	Excerpt	Status	Date
Question	—	Could solar power be utilized and substitute coal in the 19th century? Would it be possible for a nation with 19th century to very early 20th century technology and history and hot desert climate to utilize solar power for electrical generation as a substitute for coal or replace the use of coal in any other way? There is not an abundance of national coal, however, riv... (more)	—	over 5 years ago