An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The ball on top of a flagpole is called a 'truck'.
24
Mico headphones read your brainwaves and select music based on your state of mind.
7
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
In the early 1960's, Porsche commercially manufactured farm tractors.
24
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
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7