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Imagine a bill covered with microscopic holes that make it glow slightly in the light. It's tech borrowed from a butterfly, and it may soon be foiling counterfeiters around the world

Can't keep track of where you leave things around the house? Need a little distance from your home life? Check out these gadgets, essential for every home office

Amazon's Kindle textbook rental offer will likely be awfully tempting to penny-pinching college students.

We tested four keyboards with newfangled features. Here are the results

This could be a winner for some small businesses or self-employed consultants that rely on Gmail. You can now store up to 25,000 contacts in a single account. Previously, the limit was 10,000

With the rising popularity of the radio and increased interest in broadcasting, Scientific American began running a section called “Radio Notes” which appeared monthly. [More]