The electric chair was invented by a dentist!
122
The life boat was patented in 1845!
29
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The ball on top of a flagpole is called a 'truck'.
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
Whale oil was used in automobile transmissions as late as 1973.
56
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
