Whale oil was used in automobile transmissions as late as 1973.
56
A small airplane can fly backwards.
75
Energy is being wasted if a toaster is left plugged in after use.
21
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
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
Originally, Nintendo was a playing card manufacturer.
70
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250