Kleenex tissues were originally used as filters in gas masks.
46
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
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
Sony researchers have developed a refrigerator that only opens when you smile.
9
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10