Car airbags kill 1 person for every 22 lives that they save.
80
The first alarm clock could only ring at 4 a.m.
120
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Mico headphones read your brainwaves and select music based on your state of mind.
7
The electric chair was invented by a dentist!
122
More than a billion transistors are manufactured every second.
-25
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33