An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
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
Castor oil is used as a lubricant in jet planes.
-5
Originally, Nintendo was a playing card manufacturer.
70
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7