A small airplane can fly backwards.
75
The life boat was patented in 1845!
29
Castor oil is used as a lubricant in jet planes.
-5
The cigarette lighter was invented before the match.
210
The first alarm clock could only ring at 4 a.m.
120
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
About 39,000 gallons of water are used to produce the average car!
14
