The first alarm clock could only ring at 4 a.m.
120
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
In the early 1960's, Porsche commercially manufactured farm tractors.
24
The electric chair was invented by a dentist!
122
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
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4