Jumbo jets use 4,000 gallons of fuel to take off.
19
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
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
Sony researchers have developed a refrigerator that only opens when you smile.
9
The life boat was patented in 1845!
29
The first alarm clock could only ring at 4 a.m.
120


