The cigarette lighter was invented before the match.
210
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
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
Kleenex tissues were originally used as filters in gas masks.
46
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7