A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
Jumbo jets use 4,000 gallons of fuel to take off.
19
Any modern jet is capable of breaking the sound barrier.
34
There are only 14 blimps in the world.
69
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