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
Attics were invented in Attica.
43
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
The IRS processes more than 2 billion pieces of paper each year.
28
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47


