The electric chair was invented by a dentist!
122
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
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
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
A small airplane can fly backwards.
75
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Whale oil was used in automobile transmissions as late as 1973.
56
The ball on top of a flagpole is called a 'truck'.
24