The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Whale oil was used in automobile transmissions as late as 1973.
56
In the early 1960's, Porsche commercially manufactured farm tractors.
24
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
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
A small airplane can fly backwards.
75
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12