Pain at the pump continues to reach new levels of misery every day. While most of us can’t afford to trade our current gas guzzler for a more fuel economical model, it would be nice to adopt some new driving skills that will translate into greater fuel economy. But where do you start? How do you know if your current jitney is a fuel sipper or a gas guzzler?

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Sometimes, when you’re trying to immerse yourself in a movie or television show on an iPod’s diminutive screen, you just need to go bigger. Here’s how: Turn your Classic or Nano into a home theater with a simple, unpowered DIY projector.

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No doubt about it; Everexs gBook computer is a hackers dream PC. While we weren't too fond of the company's entry into the ultra-portable market, the gBook sings a different tune: On top of being a fairly well-equipped, full-size VIA-based budget laptop, the gBook also sports some impressive hidden features when the hood is lifted and the tires kicked. And while they may not be immediately apparent, in the hands of a seasoned tinkerer the gBook's extras can allow for some inspired modding.

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digg_url = 'http://digg.com/general_sciences/Fun_Pocket_Theremin';

Even if you're not familiar with the Theremin itself, it's very likely you've heard its loopy electronic tones before. Remember those spooky sound tracks from 1950s science fiction movies? Well, chances are pretty good that those oscillating noises were generated by a Theremin.

Designed by Russian physicist Leon Theremin circa 1919, the two-handed instrument was one of the first ever electronic musical instruments and the first instrument one could play without physically touching it. Thirty years after its invention, the Theremin was popularized by American synthesizer godfather Robert Moog in the 1950s and immortalized in the classic Sci-Fi flick The Day the Earth Stood Still.

A full-fledged Theremin will set you back nearly $400, but with the instructions below, you can build a pocket-sized Theremin-like instrument that wont break the bank. Unlike the real McCoy which relies on grounded variable capacitance for changing frequency and volume with the wave of a hand, our Pocket Theremin uses variations in light for producing its unearthly vibrato.

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Pick up milk. Feed dog. Finish homemade nuclear sub. Like many people, I cant function without writing little reminders to myself. But using one paper sticky note after another causes a lot of clutter and can be pretty wasteful. Instead, assemble a bunch of surplus parts into a digital note system for your kitchen or office. Just write out your message with your fingertip on a computer trackpad, and it appears on an LCD screen.

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Sure power supply projects aren't that sexy; but they are, generally speaking, the foundation for every electronics project. The voltage output for this project is 5VDC, and a practical output that can be applied to a wide variety of digital components.

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