Jumbo jets use 4,000 gallons of fuel to take off.
19
It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
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
Castor oil is used as a lubricant in jet planes.
-5
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55