There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Castor oil is used as a lubricant in jet planes.
-5
More than a billion transistors are manufactured every second.
-25
A toaster uses almost half as much energy as a full-sized oven.
33