The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12
In the early 1960's, Porsche commercially manufactured farm tractors.
24
The electric chair was invented by a dentist!
122
A small airplane can fly backwards.
75
The ball on top of a flagpole is called a 'truck'.
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