Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The first alarm clock could only ring at 4 a.m.
120
Jumbo jets use 4,000 gallons of fuel to take off.
19
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
A small airplane can fly backwards.
75
Originally, Nintendo was a playing card manufacturer.
70