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
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
Los Angeles's full name is "El Pueblo de Nuestra Senora la Reina de los Angeles de Porciuncula"!
72
Wearing red increases attraction.
30
The cruise liner, 'Queen Elizabeth 2', moves only six inches for each gallon of diesel that it burns.
26
Ninety-nine percent of pumpkins sold in the United States are for the sole purpose of decoration.
55
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
On average, the life span of an American dollar bill is eighteen months.
33