The electric chair was invented by a dentist!
122
Sony researchers have developed a refrigerator that only opens when you smile.
9
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
The first alarm clock could only ring at 4 a.m.
120
The ball on top of a flagpole is called a 'truck'.
24