Energy is being wasted if a toaster is left plugged in after use.
21
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
A small airplane can fly backwards.
75
Sony researchers have developed a refrigerator that only opens when you smile.
9
There are only 14 blimps in the world.
69
Castor oil is used as a lubricant in jet planes.
-5
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12