The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The cigarette lighter was invented before the match.
210
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
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
Jumbo jets use 4,000 gallons of fuel to take off.
19
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47