Energy is being wasted if a toaster is left plugged in after use.
21
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
More than a billion transistors are manufactured every second.
-25
Originally, Nintendo was a playing card manufacturer.
70
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
There are only 14 blimps in the world.
69
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47