The first alarm clock could only ring at 4 a.m.
120
About 39,000 gallons of water are used to produce the average car!
14
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
The ball on top of a flagpole is called a 'truck'.
24
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The United States produces enough plastic film annually to cover the entire state of Texas.
13