The first alarm clock could only ring at 4 a.m.
120
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
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47