In the early 1960's, Porsche commercially manufactured farm tractors.
24
More than a billion transistors are manufactured every second.
-25
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
The first alarm clock could only ring at 4 a.m.
120
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Sony researchers have developed a refrigerator that only opens when you smile.
9