Historic time capsule found at Washington Monument. Before you go, we thought you'd like these... BALTIMORE (WBAL) -A piece of history has been discovered in Baltimore. The original cornerstone of the Washington Monument in Baltimore, thought to be long lost, was discovered last week while crews dug for a sewage tank.
We divide our energy use among four economic sectors: residential, commercial, transportation, and industrial. Heating and cooling our homes, lighting office buildings, driving cars and moving freight, and manufacturing the products we rely on in our daily lives are all functions that require energy.
Free Energy can be used to make things occur that wouldnât happen without a source of energy. Examples of work being done include the progress of a chemical reaction to create a new product, an engine running to turn the wheels of a car, and falling water moving the turbines of a hydroelectric power plant.