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.
energy put in it into useful work. Converting one form of energy into another form always involves a loss of usable energy, usually in the form of heat. In fact, most energy transformations are not very efficient. The human body is no exception. Your body is like a machine, and the fuel for your âmachineâ is food.