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Used to irrigate their crop fields. https://school.eb.com/levels/middle/article/waterpower/277668 -
Their windmills were used to crush grain and also to pump water. https://school.eb.com/levels/middle/article/windmill/603801 -
A very improved and still functional way of turning water into power. https://school.eb.com/levels/middle/article/waterpower/277668 -
The first solar cell was created by Charles Fritts, who put it on his New York roof. https://www.smithsonianmag.com/sponsored/brief-history-solar-panels-180972006/ -
The Hoover Dam is used for power generation, water storage, and flood control. The dam's construction was put into motion by the government to help take the U.S. out of the Great Depression. https://school.eb.com/levels/middle/article/dam/273655 -
This newer solar cell produced an efficiency of 6 percent. Also, this solar cell uses silicon as a semiconductor instead of the old selenium, which wasn't as efficient. https://www.smithsonianmag.com/sponsored/brief-history-solar-panels-180972006/ -
The Three Gorges Dam is the world's largest dam, it is located on the Yangtze River in China. https://school.eb.com/levels/middle/article/Hubei/274967 -
It is the 100,000-acre Roscoe Wind Complex in Texas, USA, which has 627 wind turbines. https://school.eb.com/levels/middle/article/wind-power/277764 -
The Ivanpah solar plant is one of the biggest solar plants in the United States. It is located in San Bernardino County and crosses the California border into Nevada. https://www.energy.ca.gov/powerplant/solar-thermal/ivanpah-solar-energy-generating -
In the future, there will be massive cities that are powered by the sun, water, and the wind.