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.
The Sun. Most of the energy we capture for use on Earth originates in the nuclear reactions powering our Sun. Coal, oil, natural gas, biomass, and even the wind and hydropower we harness to generate electricity, originally derive their energy content from the Sun. Learn how our local star is the ultimate energy source.ost of the energy we capture for use on Earth originates in the nuclear reactions powering our Sun. Coal, oil, natural gas, biomass, and even the wind and hydropower we harness to generate electricity, originally derive their energy content from the Sun.