The greatest need modern civilizations have is energy. Learn about oil, electricity and newer forms of energy like solar and wind power.
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Wind farms are touted for their ability to capture a clean, renewable energy source. Is producing wind energy as beneficial as it seems, or are there any downsides?
By Lance Looper
Energy has been on everybody's minds lately, probably because our society is in a transition period, trying to move from polluting sources to cleaner ones.
Shedding light on dark energy has been a bit of a challenge for today's astronomers. What dark energy actually is goes beyond our present scientific understanding.
By Talal Al-Khatib
The United States is the world's top producer of oil, but it still depends on foreign countries for millions of barrels, as well. Will there ever be a time when the U.S. is totally independent when it comes to oil production?
Why can't we generate all the electricity we need from the wind? Learn more about generating energy from wind power.
The global oil supply can't meet the demand forever. Will the last drops of oil lead to widespread anarchy, the end of globalization and the relentless exploitation of previously protected drilling sites?
Where electricity is produced from a coal fired power station, how much coal is required to run a 100-watt light bulb 24 hours a day for one year?
Manhole covers have been blasting out of the ground in New York City. Find out what causes these strange explosions and how powerful they really are.
By Kevin Bonsor
The basic idea isn't new, but the process of modern hydropower conversion is high-tech. Today's hydropower plants are some of the coolest machines ever constructed. Find out how rushing water generates power.
By Kevin Bonsor
How can water cut through steel? A device called a waterjet uses extreme force to cut through all sorts of things.