posted by Suzie Chhouk
It is important for governments to regulate the production of money because if anyone could print their own money, it'd all be pretty useless! In the United States, the government employs several different techniques to prevent non-regulated printers to make their own money. Now you, too, can use these easy chemical tricks to figure out if the U.S. dollars you get are counterfeit or not!
from TEDEd
from TEDEd