Castor oil is used as a lubricant in jet planes.
-5
Whale oil was used in automobile transmissions as late as 1973.
56
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
Any modern jet is capable of breaking the sound barrier.
34
Originally, Nintendo was a playing card manufacturer.
70
About 39,000 gallons of water are used to produce the average car!
14
More than a billion transistors are manufactured every second.
-25
A small airplane can fly backwards.
75