Castor oil is used as a lubricant in jet planes.
-5
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
The ball on top of a flagpole is called a 'truck'.
24
The United States produces enough plastic film annually to cover the entire state of Texas.
13
In the early 1960's, Porsche commercially manufactured farm tractors.
24
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