Close up view of a wind turbine used in modern wind farms.
Harnessing the wind to make work easier is not a new technology. People have been using wind to mill grain, ...
What is magnetism used for?
The Sun is the source of almost all our energy. It is a huge ball of hot gases that gives ...
Sunlight can be converted into useable electricity. To do this, we need a solar cell. Solar cells are also called ...
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