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    Automotive Closed loop spark advance and it's effect on abnormal combustion.

    Recently I read about Saab's experiments at closed loop spark advance, and it got me wondering. If you are controlling spark advance to maintain a constant peak pressure position of 20 deg after TDC is it possible to get into a situation where detonation or pre-ignition is possible. It seems to...
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    Brayton cycle solar generation.

    I've been trying to wrap my head around this one for a while. What are the drawbacks to using a brayton cycle solar generation setup? Here's the setup. It seems a car turbo is the cheapest and best suited so that's what I'll prototype if the idea gets that far. Atmosphere => Compressor =>...
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    What is the best way to patent an idea?

    I recently had an idea which is revolutionary to car travel. I would like to actually produce a prototype and gain publicity/funding for the idea, but I don't want to do anything until I have ownership of the idea. There seem to be several options available, but since this is my first attempt I...
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    MMO addiction.

    My wife is an MMO addict. I knew it before we were married, but I never saw how bad it was. Currently she spends between 6 and 12+ hours playing her game a day. We have 3 young kids and I have a full time job with plenty of overtime. While she does keep the kids fed and when prompted does keep...
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    Solar power AC units, soon or never?

    It seems to me that solar power and air conditioning are made for each other. As of now there are several different companies making smaller adsorption/absorption AC units, but they are overpriced compared to their electric driven counterparts giving limited return on investment. Here's what...
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    Why don't air conditioners have regenerative heat exchangers?

    I've been pondering this question for a while and I think I must be missing something. In a regular refrigeration cycle you have a high pressure liquid at nearly ambient temperature entering a metering device and then an evaporator coil. At which time it is a low pressure and low temperature...
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    Cheap function generator options.

    I'm playing around with a toroidal coil and eventually want to use it for some wireless power transfer experiments. My problem is that i need a function generator that can output around 1-5 mhz, and they are kinda pricey. I'm not going to need to know the precise frequency I'm producing, just to...
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    Optical DIY LED lighting

    I'm currently playing with an idea to convert my living room and family room to LED lighting, however nothing on the market fits my needs so I'm thinking of a homebrew solution. I want to use a computer power supply or other stable 12volt source and then build a current regulator/dimmer...
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    Creating a heated Vacuum chamber.

    Not sure whether this would be better in materials or mechanical. I'm building a vacuum chamber which is going to house silica gel, I've got a prototype made out of PVC, but I'm afraid of running it up to 180-200 deg F to regenerate the silica. For the large scale I'm gonna need to build a...
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    Eric Laithwaite Gyroscopic antigravity.

    I often poke around with free energy websites and the like, mostly to find out what new cons people are buying into. I'm a devout skeptic, but this video intrigued me: Now it could be an incredibly light gyro and pole, but it would have to be really light to be able to lift it up like...
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