One in five long-term love relationships began with one or both partners being involved with others.
177
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
You can tape a small mirror onto a cone speaker, play music and shine a laser on to the mirror and the reflection will look like a laser light show on your wall.
102
In the White House, there are 13,092 knives, forks and spoons!
51
Americans are responsible for generating roughly 20% percent of the garbage in the world.
29
The small pocket in the larger pocket of your jeans was designed for pocket watches.
11
There are more nerve cells in the human brain than there are stars in the Milky Way.
349