An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Originally, Nintendo was a playing card manufacturer.
70
Kleenex tissues were originally used as filters in gas masks.
46
Any modern jet is capable of breaking the sound barrier.
34
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
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