There are only 14 blimps in the world.
69
Castor oil is used as a lubricant in jet planes.
-5
Kleenex tissues were originally used as filters in gas masks.
46
The life boat was patented in 1845!
29
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0