It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Attics were invented in Attica.
43
The first alarm clock could only ring at 4 a.m.
120
The United States produces enough plastic film annually to cover the entire state of Texas.
13
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1