The cigarette lighter was invented before the match.
210
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Jumbo jets use 4,000 gallons of fuel to take off.
19
A small airplane can fly backwards.
75
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60