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
More than a billion transistors are manufactured every second.
-25
The average car produces a pound of pollution every 25 miles!
18
The life boat was patented in 1845!
29
Energy is being wasted if a toaster is left plugged in after use.
21