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.
We consume energy in dozens of forms. Yet virtually all of the energy we use originates in the power of the atom. Nuclear reactions energize stars, including our Sun. The energy we capture for use on Earth comes largely from the Sun or from nuclear forces local to our own planet.