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
There are no rental cars in Bermuda.
46
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Like fingerprints, everyone's tongue print is different.
250
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
479
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
In 1997, a survey reported that 12% of Americans think that Joan of Arc was Noah's wife.
48