Sony researchers have developed a refrigerator that only opens when you smile.
9
Originally, BMW was an airplane engine manufacturer.
69
In the early 1960's, Porsche commercially manufactured farm tractors.
24
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
A small airplane can fly backwards.
75
The life boat was patented in 1845!
29
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60