Recent content by steveh2112

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    Undergrad Is Standard Glass Strong Enough to Hold Back Water in a Bubble Panel?

    plexiglass (acrylic sheet) is about 3x the cost of glass so i want to try glass first. my connectors will be glued in place so no hole cutting in the glass. i'll post a pic when my project is finished. thanks for the help.
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    Undergrad Is Standard Glass Strong Enough to Hold Back Water in a Bubble Panel?

    wow, you have no idea how long that hydrostatic pressure thing has been bothering me. now i see it totally, thank you so much for the great explanation. my guess is that i may have a problem with my tank design using 10mm glass. i expect the loading on the side walls will be very high. but i...
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    Undergrad Is Standard Glass Strong Enough to Hold Back Water in a Bubble Panel?

    hi, i know hydrostatic pressure has been discussed on this forum but I'm still not convinced (i know, crazy me) i have a practical application actually. i'm planning to build a bubble panel (a.k.a bubble wall). its like a tall, wide but very narrow fish tank but no fish, just bubbles. i'd...
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    Low agitation mixing pump design

    hi again i just had a new idea. i was thinking about making this whole thing air operated vs. motor/crank driven. i though of using another air cylinder but then i had an idea. you will notice from my original diagram that there are 2 air ports on these cylinders, they are 'double acting'...
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    Low agitation mixing pump design

    hello everyone, i run a small microbrewery and i have a need for a unique pump design, here are the requirements: 1) low agitation of pumped liquid (cider in my case) because its full of CO2 in suspension and i don't want the gas to come out in the pump 2) the pump will be used to mix 2 fluids...
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    How to create a 600VAC/cm electic field at home?

    it seems to me that if the goal of the 600V/cm electric field is to introduce a small current into the wine, then a far simpler method would be to put a couple of electrodes in the wine and pass a small current through it, maybe a couple of mA, who knows! anyhow, that's the easiest thing in the...
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    How to create a 600VAC/cm electic field at home?

    oh, thanks for that answer. that's what i was trying to find out, i didn't know about the minimum of 30,000V/cm in air. that sounds like it could arc over and be quite dangerous. so just to be clear, if i get a 10mm diameter glass tube full of wine (say a test tube). i put some kind of...
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    How to create a 600VAC/cm electic field at home?

    actually, I'm not passing a wine bottle between the electrodes. the wine will be in a glass tube about 1cm dia or less so 600V should be fine. as far as having no effect, that's why i want to do the experiment, find out. i do have a question however, to create an electric field, does the space...
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    How to create a 600VAC/cm electic field at home?

    hi all, I'm reasonably competent at physics and electronics but by no means an expert so i hope someone can help me. i'm into wine making and found this very interesting article about how to artificially age wine by passing it through an AC electric field...