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Recent content by twostar

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    Good 35mm SLR for general use?

    thanks for all the info, I'm diggin through it all. I also reallized since the camera isn't working I might as well try fixing it myself. Picked up some repair manuals and I'm going to get some decent tools and see what I can do. Hell not like it's working now so what do I have to loose...
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    Good 35mm SLR for general use?

    thanks for the info. Looking at them now. One question though, what's the HP on the F3HP mean? I did a quick search but couldn't tell the difference.
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    Good 35mm SLR for general use?

    My Olympus OM-1 jammed on me again. Going to cost at least $100 to fix it, so I'm wondering if it's worth it to just go buy a new camera. Problem is I have no idea what is good out there. I use to shoot the local sports with my OM-1 so I know my way around a camera, therefore manual...
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    Fluid Dynamics

    q = 1/2 rho v^2 though, you get your velocity and can find flowrate from that using pi*r^2*V (volume flow rate) m^3/s K2Rage101 > I'd be interested in the equations for this, I probably learned them in fluids but i'm aero so pipes aren't really my thing. I like flows over bodies...
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    Fluid Dynamics

    what's the point of using bernoulli (don't leave the ground without him)? How are you going to find/calc the q? gz = easy p = static probe (head port) q = ? unless you plan on using a pitot tube
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    Electrical isolation of a WC circuit?

    Having some weird problems getting my wc working again. Old pump died about three months ago and finally got around to buying some replacement hardware. I get the circuit up and running and leak free, install it in the computer and after some more checks boot the computer. Here's were...
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    Pump Q

    I haven't been reading the forums much but I fail to see how a higher head pressure is going to cool more then mass flow. The more mass flowing through the system, the more energy you can carry away. The head pressure is needed because of the valves and length of tubing. If it's to low...
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    Relay to switch off computer if pumps fail or temps get too high

    I'm looking at putting in a piston activated low flow switch (part # 42015K2 at www.mcmaster.com ) Wire it up as a final switch. If this is open the system just can't start or will shut down, might even make it a hard shutdown just to be safe.
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    biometric sensor as power button...thoughts?

    If your that worried about security then I think you could take the time to setup the bios to ignore the ps2 power on function, plus that only works if you're in the right power off mode iirc. Any comp can be booted up with a screw driver if you know what your doing but there are ways to secure...
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    biometric sensor as power button...thoughts?

    well if you're going to use it for startup it's going to have to be almost completely independent. It's own processing capability and power. I would say design a system that checks the biometeric and when it has a match simply closes a circuit for a second that you have wired to the power...
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