Researchers link realism to blockchain's promise

Depending on who you ask, blockchain technology is poised to revolutionize the world—from creating a universal currency to building a free and truly private internet. Or, the new technology, built with a combination of ...

Longhorn beetle inspires ink to fight counterfeiting

From water marks to colored threads, governments are constantly adding new features to paper money to stay one step ahead of counterfeiters. Now a longhorn beetle has inspired yet another way to foil cash fraud, as well as ...

Probing Question: What is Bitcoin?

In 1729, when he was 23 years old, Benjamin Franklin authored a pamphlet titled "A Modest Inquiry into the Nature and Necessity of a Paper Currency." The revolutionary idea he advocated? Paper money printed and controlled ...

Laundering money—literally—could save billions of dollars

A dollar bill gets around, passing from hand to hand, falling on streets and sidewalks, eventually getting so grimy that a bank machine flags it and sends it to the shredder. Rather than destroying it, scientists have developed ...

Paper money worldwide contains bisphenol A

The cash register receipts that people place near paper money in billfolds, purses, and pockets has led to a worldwide contamination of paper money with bisphenol A (BPA) — a potentially toxic substance found in some ...

Canada prepares to introduce plastic money

When I think of paying with plastic, I think of credit or debit cards. However, my thought process is going to have to change. Canada will soon join a growing list of countries that use a polymer-based plastic instead of ...

See where your money is going -- literally

Kathy Williamson was over in the Pigeon Forge area in early December and stopped into a Harry & David store in Sevierville, Tenn., to buy candy. The change she received from the clerk was correct, but she noticed something ...

Discovered: Audubon's first engraving of a bird

In 1824, three years before he began to publish his famous "double elephant folio" The Birds of America, John James Audubon (1785-1851), the eminent artist of American birds and animals, created a drawing of a running grouse ...