The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
A toaster uses almost half as much energy as a full-sized oven.
33
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4