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Coal
When we discovered the use of coal we started investing in trains, which transported almost everything after this discovery. -
Wind Power
This is when we use the breezes of the wind to our advantage, such as using sails and windmills. I said July 4, 1776 because this is the oldest known source of energy to man. The United States became a nation on this date so we've had it ever since we've been a nation. This is not when we first discovered it. -
Biomass Energy
This has been used as a source of heat energy since man discovered fire. -
Solar Energy
Grylls Adams and Richard Day discovered solar energy when selenium is exposed to light it creates electricity -
Hydroelectricity
We started using hydroelectricity around Niagara Falls. -
Electricity
Electricity came around during this time. -
Geothermal Energy
Geothermal energy is thermal energy stored into the planet. -
Nuclear Energy
We discovered this during World War 2. We focused this on the atomic bomb. -
Tidal Energy
This is a type of hydropower. This is pretty expensive. It uses water barrages. These are on the ocean floor. -
Fusion Power
This is the generation of energy by nuclear fusion.
