The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
A small airplane can fly backwards.
75
Castor oil is used as a lubricant in jet planes.
-5
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Energy is being wasted if a toaster is left plugged in after use.
21