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Keeping track of your quarry is essential to your task, but even the greatest ninja needs sleep. You can't follow him everywhere at all times, but if you must know his pattern, you've got two options ahead of you. One, conjure a tiny demon to shadow him. Of course, we all know that tiny demons are notoriously tricksy, and you'll spend as much time tracking it down as you will your subject. The second option is the SkyTRX mini tracker.

Small, water resistant and with a magnetic connector, the SkyTRX mini tracker can be mounted and hidden from view. Allow your prey to continue on their way for up to 5 days before retrieving the SkyTRX, and downloading their GPS tracking information. Plug the data into Google Maps and see where they went, when, how long they stopped, even how fast they were going.

Blocky table tennis with a ball and two paddles was one of the first real video games to make it into mainstream culture. It took an awful lot of high-tech electronics in 1972 to create this classic game. Now however you can cobble together your very own Classic Video Table Tennis Game with a little determination and some basic soldering skillz. This kit contains a pre-printed circuit board and 39 various resistors, diodes, and capacitors. Solder everything together (following the instructions we hope) and plug the audio and video into any standard TV for instant Table Tennis action. You can play against another lowly human or challenge the computer at four different skill levels.

Speakers are the last links in the sound chain (except for your ears), and because we hear in analog, speakers deliver sound to us in analog. Whatever your electronics do, when they finally send their signals to the speakers, the dice are cast. Your speakers will finish the job without any further opportunity for electronic modification. Sure, you can modify the sound according to what the speakers are telling you, but that’s a workaround; you can take it only so far. Poorly chosen or just plain crappy speakers will ultimately have their way, while good ones will reward every dollar and every second you’ve spent on the rest of your system.
Source: TechLore

Your heart is thumping like a four-year-old with a wooden spoon and an upturned pot. The blood is rushing in your ears, and your blood pressure is higher than it's ever been. No, it's not sexy-time. Unfortunately, you're at work, under stress, and making mistakes.

Some people thrive under stress, but the damage to your system can be considerable - even life-threatening. You've got to chill out, but simple deep-breathing may not be enough. You've got to enter a state scientists call 'coherence' - the state where your nervous system, cardiovascular, hormonal and immune systems are all working in harmony.

Depending on who you ask, RFID technology is either the "Mark of the Beast", or a global panacea destined to rescue the grocery stores and Walmarts of the world from shoplifting. But any good geek knows that RFID is nothing more than tiny microchips powered by RF induction that store and broadcast a small bit of data. Want to learn more? Rather than rip apart your passport you can pick up this nifty RFID Experimentation Kit with over a dozen types of RFID tags, a USB based RFID reader and instructions for tons of insidious RFID projects. You even get a cool bio-implantable type of RFID Tag which you should never ever load into a blowgun and implant in any of your coworkers because it's not surgically sterilized.