The first alarm clock could only ring at 4 a.m.
120
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7