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
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
More than a billion transistors are manufactured every second.
-25
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Whale oil was used in automobile transmissions as late as 1973.
56
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
A toaster uses almost half as much energy as a full-sized oven.
33
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33