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
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
The United States produces enough plastic film annually to cover the entire state of Texas.
13
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Kleenex tissues were originally used as filters in gas masks.
46


