Kleenex tissues were originally used as filters in gas masks.
46
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 first alarm clock could only ring at 4 a.m.
120
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
The United States produces enough plastic film annually to cover the entire state of Texas.
13
Car airbags kill 1 person for every 22 lives that they save.
80
