Kleenex tissues were originally used as filters in gas masks.
46
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25
The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
2
In the early 1960's, Porsche commercially manufactured farm tractors.
24
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
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