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
More than a billion transistors are manufactured every second.
-25
A small airplane can fly backwards.
75
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
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The ball on top of a flagpole is called a 'truck'.
24
The life boat was patented in 1845!
29
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184