Whale oil was used in automobile transmissions as late as 1973.
56
Castor oil is used as a lubricant in jet planes.
-5
It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
There are only 14 blimps in the world.
69
