HOW TO – Make a Stereo Miniature Microphone and Battery Module…
Here are two great how-tos from the Sony mini disc forums “How to build a high quality stereo / binaural miniature microphone Required parts: – 2 omnidirectional miniature electret microphone capsules (get the best ones you can find / afford – your selection will have a major influence on the sound quality) – 3.5 mm stereo connector with cable, preferrably shielded – a few inches of heat shrinkable tubing, slightly larger diameter than the capsules” Link.
Sans writes “The cheapest way to remotely control a device within a visible range is via Infra-Red light. Almost all audio and video equipment can be controlled this way nowadays. Due to this wide spread use the required components are quite cheap, thus making it ideal for us hobbyists to use IR control for our own projects. This part of my knowledge base will explain the theory of operation of IR remote control, and some of the protocols that are in use in consumer electronics.” 
New SYSTM! – “What is Asterisk? Asterisk is an insanely powerful, yet easy to use, open source voip telephony toolkit (server software) that runs on virtually any platform. It allows anyone to manage VoIP services in their own home in more powerful ways than the most expensive PBX (public branch exchange). For example, it can serve as a gateway from a VoIP service to your copper phone lines, forward calls to your mobile device from wherever you are, allow you to create VoIP connections to anyone on the Internet, manage voicemail, prompts … a virtually limitless capability depending on how far you want to take it.” [
Scott writes “Here’s an inside look at the legendary Survival Research Labs shop where they create the robots and machines for their amazing shows. It’s been at it’s current San Francisco location since 1982, but will soon have to move.” 
Mac writes “A while back, I happened upon the application note “Interface to Optical Mouse Sensor” on the Kronos Robotics website. It discusses the use of a sensor from an optical mouse for use in position sensing coprocessor on a robot. The application note did not go beyond the proof-of-concept stage. That is, could the sensor be directly interfaced and controlled? Since I didn’t have easy access to the GE mouse described in the application note, I wanted to see if there were other optical mice available that had an Agilent optical mouse sensor, which I could use in its place. I also wanted to go beyond the proof-of-concept stage and acutally use an optical mouse sensor in a robotics application. Before developing that application, though, I first needed to gain familarity with interfacing to the optical mouse sensor in a Forth environment. This webpage describes the hack I did to a BTC optical mouse to enable direct control of the Agilent (now Avago, see below) ADNS-2610 Optical Mouse Sensor and the Forth code written to control it.” [
Here’s this week’s “cool stuff being made!” – “…animation of the making of a flat panel display. In fact, you’re probably looking at one now. This shows you how once again you are surrounded by manufactured products: cars, food, clothing, flat panel displays. Without manufactured products, the world would be a quiet and empty (and hungry) place.” [
Matthew writes “A project I’m finishing off involves a simple little front end that I’ve decided to implement using some DHTML. As I was reading up on JavaScript’s setTimeout method as part of my DHTML research, an interesting thought crossed my mind: would it be possible to make a strobe light out of that old archaic CRT monitor sitting on my closet floor and such a weak (as in weakly typed) language as JavaScript? Well, I decided to give it a try and it actually worked out pretty well — although it did give me a mild headache after I had the not so keen idea to stare directly at it for a few seconds. Here’s the code you need to make use of that old dust magnet.”