Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Any modern jet is capable of breaking the sound barrier.
34
The ball on top of a flagpole is called a 'truck'.
24
The average car produces a pound of pollution every 25 miles!
18
More than a billion transistors are manufactured every second.
-25
The United States produces enough plastic film annually to cover the entire state of Texas.
13
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20