HD Television Shopping Guide

HDTV prices keep falling, but the buying decision gets increasingly complex

3 min read
HD Television Shopping Guide

This holiday season, the rise of 3-D televisions has made it a buyer's market for plain old HD. To be sure, it's as easy as ever to get lost in a confusing tangle of technologies and acronyms. So let's simplify things. The first question involves just three letters: LED or not LED?

LED-backlit LCD screens are the premium display technology this year. They cost at least 10 percent more than the standard fluorescent-lit LCDs, but the best ones can't be beat. "The color balance is just so much better," says Randall Hand, editor of VizWorld.com.

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How Nanotech Can Foil Counterfeiters

These tiny mechanical ID tags are unclonable, cheap, and invisible

10 min read
Close up of a finger with a clear square on it.
University of Florida

What's the largest criminal enterprise in the world? Narcotics? Gambling? Human trafficking?

Nope. The biggest racket is the production and trade of counterfeit goods, which is expected to exceed US $1 trillion next year. You've probably suffered from it more than once yourself, purchasing on Amazon or eBay what you thought was a brand-name item only to discover that it was an inferior-quality counterfeit.

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