A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Originally, Nintendo was a playing card manufacturer.
70
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The ball on top of a flagpole is called a 'truck'.
24
Castor oil is used as a lubricant in jet planes.
-5
There are only 14 blimps in the world.
69
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33