electronics

Never content to let a paradigm remain a paradigm, DARPA has issued a broad agency announcement seeking the development of super-low-power, non-volatile logic integrated circuits that retain their computational states as well as their data even after their power supplies have been removed. Focusing on magnetic-moment-based approaches, the agency wants a new breed of portable electronics, sensors and UAVs that can compute even when the lights go out.

Electronics geeks hacking oscilloscopes fall, for me, into the same category as support truck racing at Dakar: Technicians having fun with their tools. Following in the proud tradition of Oscilloscope Tennis, Oscilloscope Pong, and Oscilloscope Clocks, Matthew Sarnoff has built a VT100 serial terminal - from an oscilloscope.

Scientistsu, engineers, and doctors yearn for tiny sensors to record a vast array of events in the world's many hard-to-reach places. And so far, the tradeoff between battery life and size has prevented sensors from becoming small enough to fit unobtrusively in the human body, or inside very small machines. Now, University of Michigan researchers seem to have solved that puzzle by creating a chip that draws energy through solar power, heat, or movement.

Graphene may brighten the future more literally than we had originally anticipated, besides merely revolutionizing electronics and Silicon Valley. Swedish and American researchers have transformed the one-atom-thick carbon material into a new, inexpensive lighting component that could give organic light diodes (OLEDs) a run for their money.

There are more efficient and complex power supplies in the world. There are easier ways to get a simple power supply like this one (re-using a wall-wart, for instance). But if you make a power supply like this at least once in your life, you will have a much better understanding of how alternating current becomes regulated DC power. There will be many other power supplies like it, but this one will be yours.

Flash an exotic prototype, then—Presto!—get people to buy your more boring stuff. That kind of thinking still rules at most electronics companies. Apple under Steve Jobs only shows off actual products. The difference? Apple's arcane secret to success.

Moore's Law provides the axiom that the number of transistors that can be placed on a circuit will double every two years, but as we reach for smaller and smaller tech, silicon and other transistor materials are reaching their physical limits. Lucky for Moore, a European research group has produced graphene of a size and quality that can be practically developed for eventual commercial use.

Perhaps you've heard of TGIMBOEJ? The Great Internet Migratory Box of Electronic Junk is a great concept: a few USPS medium sized flat rate boxes floating around amongst the country's electronics nerds. A sort of cross-pollenation for junk bins.

A box of junk shows up on your door step. Take what you want, add some new gems, and send it back on its way. One of those boxes just arrived here at TE Motorworks.

Well, that didn't take long. Only two weeks after Barnes and Noble's Nook e-Book reader hit the shelves, hackers have already posted instructions for converting the machine into an Android tablet PC with a free cellular Internet connection. And while no applications currently exist for the reset reader, that's sure to change.

Make magazine has just put up its $20 and under holiday gift guide, chock full of starter electronics kits like a barebones Arduino and tools for your favorite tinkerer. Or if you're the only one who solders in your circle, pick up a few kits now and give away the finished product.

I've built a number of kits from Make and they're a great way to learn and hone your DIY electronics skills, with super-clear instructions. After the jump, I add my five additions to their list, with an eye toward encouraging the young hijinks-prone Makers-in-training on your list.

Hi. My name is Vin and I'm an addict. I can't stop buying electronic junk. I know it's only filling up bins in my shop and taking money I could be pouring into more productive hobbies, like drinking and shooting guns. But what if the completion of some future project, some really crucial bit of hijinks, hinges entirely on my having a switch designed to discharge massive capacitors? Then what, huh?

Am I supposed to just assume my local Radio Shack will have my back? Not likely.

If you were anything like I was as a kid, you'll remember fondly the time spent soldering electronics kits. In recent years, I've been busy building things like pink camouflage tanks, and have mostly missed the recent electronic-kit resurgence. That is, until I had the need to broadcast live video images from the cockpit of a recent project to TV screens piled around the arena, and rediscovered an awesome kit source.

NEC and Rohm are going back and forth on new engineering breakthroughs that will allow integrated circuits inside chips to consume no power when they're briefly inactive between cycles. And unlike most chip-level developments on the edge, we may see the technology in consumer products by the end of the year.

Have you ever needed a low-value resistor for a low-voltage battery-powered circuit? Say, something in the range of 10-100 ohms? Finding this value of resistor can be difficult, if not impossible. In cases like this, you might be better off making your own resistor.

The blaring techno, waifish models and $10 cocktails all seemed appropriate for a book release party/fashion show, but one thing was truly different from your usual runway moment: the clothes. Designer Diana Eng has become famous for her blend of style and science, mixing technology into her accessories and clothes whenever possible. PopSci.com attended her recent release party, and brought back some photos of the fierce fashion geekery.