The electric chair was invented by a dentist!
122
Energy is being wasted if a toaster is left plugged in after use.
21
In the early 1960's, Porsche commercially manufactured farm tractors.
24
The first alarm clock could only ring at 4 a.m.
120
Whale oil was used in automobile transmissions as late as 1973.
56
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
More than a billion transistors are manufactured every second.
-25