The life boat was patented in 1845!
29
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Kleenex tissues were originally used as filters in gas masks.
46
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
A small airplane can fly backwards.
75
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308