First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Castor oil is used as a lubricant in jet planes.
-5
Jumbo jets use 4,000 gallons of fuel to take off.
19
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
Car airbags kill 1 person for every 22 lives that they save.
80
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

