The electric chair was invented by a dentist!
122
The first alarm clock could only ring at 4 a.m.
120
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
A small airplane can fly backwards.
75