First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
Whale oil was used in automobile transmissions as late as 1973.
56
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
Mico headphones read your brainwaves and select music based on your state of mind.
7
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12