If the human eye was a digital camera, it would have 576 megapixels.
25
Play-Doh was first manufactured as a wallpaper cleaner.
122
The scent of women’s tears temporarily reduces sexual arousal and testosterone production in men.
12
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
There are 293 ways to make change for a dollar.
148
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
The number of text messages sent and received in a given day is greater than the world's population.
198
Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11