the video-game department of The International Arcade Museum, has provided the Internet's largest database of coin-operated video-games since the earliest days of the Internet.
basically the Flash Nap project with a few extra features and some work. It's also a minimal version of "Light/Sound" hypnosis machines that cost hundreds of dollars, but if you have parts, this one will cost just a couple of bucks. NO PROGRAMMING REQUIRE
There is no standard mains voltage throughout the world and also the frequency, i.e. the number of times the current changes direction per second, is not everywhere the same. Moreover, plug shapes, plug holes, plug sizes and sockets are also different...
Nice little guide to building an IR transceiver - uses the USB port for stable 5V, but includes a link in the comments to a decent circuit diagram that uses a voltage regulator and therefore doesn't need the USB port for power.
an open source programming environment and electronics i/o board for exploring the electronic arts, tangible media, teaching and learning computer programming and prototyping with electronics.
A PAL -- a "Permissive Action Link" -- is the box that is supposed to prevent unauthorized use of a nuclear weapon. It's supposed to be impossible to "hot-wire" a nuclear weapon. Is it?
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