A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
More than a billion transistors are manufactured every second.
-25
Car airbags kill 1 person for every 22 lives that they save.
80
If a car is travelling at 55 miles per hour it will travel 56 feet before the driver can shift his foot from the accelerator to the brake.
25
The ball on top of a flagpole is called a 'truck'.
24
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12


