Kleenex tissues were originally used as filters in gas masks.
46
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20