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Debugging a Three Way Switch

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We had a number of three way switches in our house that didn't work when we moved in. In fact, not one worked right. Whomever wired the house back in 1986 either didn't care or didn't know how to hook them up correctly. If you're not an electrician, or are not familiar with their standardized technical terms, the troubleshooting guides available might be confusing or useless. The information that comes with the switches seems to be the same. After pondering this issue for a few minutes the answer presented itself. 1. The "common" wire is either the load (to the light) or the hot wire (from the breaker box). 2. A "traveler" wire is just a wire that only connects to the switch. It doesn't lead to the load or the breaker box. To identify the "common" wires, the simplest method is to disconnect the switches and use a voltage detector pen (such as a Fluke VoltAlert Non-Contact Voltage Tester ) to find the hot wire. Once the hot wire ...
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Zen's World: A Hard Science Fiction Series by John Coryat

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Welcome to Zen's World: A Universe of Hard Science and Human Flaws For as long as we have looked to the stars, we have asked the same question: Are we alone? Science fiction has long been fascinated with this idea, painting pictures of first contact that range from utopian encounters to terrifying invasions. But the Zen's World series starts with a more grounded, and perhaps more cynical, question: If we finally got a message from the void, could we, as a species, even handle it? What happens when a discovery of unimaginable value is dropped into a world of corporate cold wars, military paranoia, and deep-seated human flaws? This is the central question at the heart of Zen's World , a narrative-driven science fiction series that blends the meticulous detail of hard sci-fi with the high-stakes tension of a political thriller. It’s a universe built not just on advanced technology, but on the uncomfortable and often brutal realities of human nature. A Future Forged in Rivalry...
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Rayneo 3S Pro Prescription Lens Hack

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  I've been using a head mounted display for a number of years and find it useful on occasion. The unit I have is Kickstarter project that never went anywhere. It's about dead and could kick off at any time. After some internet research, I settled on the Rayneo 3S Pro. I ordered one on Amazon and it seemed pretty good when I tried it. Problem though. I have prescription lenses and need them for distance. Unlike my previous set, the Rayneo has no option to adjust the diopter to adjust for the user's prescription eyewear. The Rayneo has an option to buy a set of prescription lenses that snap into the Rayneo 3S unit nicely. But they're over $100 and have to be ordered from the UK. Figure weeks or months at least, plus I'd be out $100. Rayneo Demo Lens Mounting Point Luckily, the Rayneo 3S comes with a "demo" frame set with the all important mount that snaps into the frame oh, so nicely. I took one look at that and knew I could do something with it besides dre...
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