There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
A toaster uses almost half as much energy as a full-sized oven.
33
There are only 14 blimps in the world.
69
Any modern jet is capable of breaking the sound barrier.
34
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
If a car is travelling at 55 miles per hour it will travel 56 feet before the driver can shift his foot from the accelerator to the brake.
25
More than a billion transistors are manufactured every second.
-25