Kleenex tissues were originally used as filters in gas masks.
46
The first alarm clock could only ring at 4 a.m.
120
In the early 1960's, Porsche commercially manufactured farm tractors.
24
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 ball on top of a flagpole is called a 'truck'.
24
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
2
Whale oil was used in automobile transmissions as late as 1973.
56