What kind of a difference does it really make to replace a regular light bulb with an energy-saving one?
Replacing your five most frequently used light fixtures or the [...]
I have heard that landfills can be a source of energy. How does that work?
Just like manure, other types of organic waste emit [...]
Is it true that cars could someday run on cow manure?
Yes! Manure can be made into a gas containing methane. [...]
Why didn’t Ben Franklin get electrocuted when he tied a metal key to a kite string and flew the kite in a thunderstorm?
Ben Franklin probably did not do his famous kite experiment [...]
When a circuit is open, do electrons go backwards, or do they just stop?
Neither! In the wires of an electrical circuit, the electrons [...]
How much energy is in a bolt of lightning?
One lightning strike can carry between 100 million and 1 [...]
Do electric eels really create electricity?
Yes! An electric eel uses chemicals in its body to [...]
I once saw a pair of shoes hanging from a power line. Why didn’t the shoes get burned up by the electricity in the line?
Shoes hanging on a power line don’t get burned [...]