The WD in WD-40 stands for Water Displacer.
30
When glass breaks, the cracks move faster than 3,000 miles per hour.
47
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Couples' personalities converge over time to make partners more and more similar.
235
You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
209
You are more likely to be killed by a champagne cork than a poisonous spider!
193
In an average hour, there are over 61,000 Americans airborne over the United States.
24
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13