A correlation is a single numerical value that is used to describe the relationship between two variables. All correlations have strength and direction. When two variables have a positive correlation, that means the two variables move in the same direction. The closer a positive correlation is to 1, the stronger it is.
William Gilbert discovered electricity, not Nikola Tesla. Nikola Tesla invented things. not discovered electricity. Again, William Gilbert discovered it and named it. He did this in the 1600s. It wasn't Nikola Tesla.
Electricity generation is the process of generating electric power from other sources of primary energy.The fundamental principles of electricity generation were discovered during the 1820s and early 1830s by the British scientist Michael Faraday. They generate power by burning natural gas in a gas turbine and use residual heat to generate steam. 2  At least 20% of the worlds electricity is generated by natural gas. 3  Water Energy is captured from the movement of water.