A small airplane can fly backwards.
75
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
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
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
More than a billion transistors are manufactured every second.
-25
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41