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
A small airplane can fly backwards.
75
The cigarette lighter was invented before the match.
210
Jumbo jets use 4,000 gallons of fuel to take off.
19
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Castor oil is used as a lubricant in jet planes.
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The United States produces enough plastic film annually to cover the entire state of Texas.
13
Sony researchers have developed a refrigerator that only opens when you smile.
9