The first alarm clock could only ring at 4 a.m.
120
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Jumbo jets use 4,000 gallons of fuel to take off.
19
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Kleenex tissues were originally used as filters in gas masks.
46
There are only 14 blimps in the world.
69