There is a strange little symbol hiding on every dollar bill, and no one can agree on what it is. Some say it's a spider. Others insist it's an owl. And for conspiracy theorists, it's a symbol tied to ...
If you pinch a one-dollar bill between your index finger and thumb, you'll quickly realize that U.S. paper currency is quite light. According to the Bureau of Engraving and Printing (BEP), bills ...