stud finders

Build It

Build It: A Touch-Activated Speakerphone

Control your appliances in the dark with a hidden system that works just by placing your hand on your nightstand

It’s the middle of the night, when suddenly you’re jarred awake by your ringing phone. It must be urgent, so you can’t waste time—or worse, miss the call—fumbling around trying to find the receiver. Instead, simply touch your hand to the top of your bedside table to answer the speakerphone. The secret is a stud finder (stuffed into the drawer of the nightstand). With a few modifications, it can sense when your hand is near it and activate a switch connected to your landline.

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The Techiest Toolbox

11 high-tech tools you'll want for your new toolbox.

Gone are the days when a hammer was a hammer and a drill just made holes. Today's tools are more versatile than ever, from sanders that drill to drills that find studs. And they don't merely get the job done; they do it better, more quickly, and more safely. Cordless tools are getting lighter and more powerful, thanks to new battery technologies. It's enough to inspire you to replace everything you own, so here are 11 high-tech tools you'll want for your new toolbox.
-Charles Wardell
1. Skil 14.4-volt Cordless Drill Driver

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December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

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