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