Bullet proof vests, fire escapes, windshield wipers, and laser printers were all invented by women.
1k
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Play-Doh was first manufactured as a wallpaper cleaner.
122
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
The face of a penny can hold about thirty drops of water.
85
The Statue of Liberty is made out of copper. When originally built, it looked like a shiny new penny!
10
People who laugh more are better able to tolerate pain - both physical and emotional.
36
