Originally, Nintendo was a playing card manufacturer.
70
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The electric chair was invented by a dentist!
122
The first alarm clock could only ring at 4 a.m.
120
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60