h a l f b a k e r yExpensive, difficult, slightly dangerous, not particularly effective... I'm on a roll.
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Periodically the individual fountains' water pools are combined (with the electricity off of course) to remolecularize the electrolyte, and more salt is added to make up for the escaped ions(which produce pretty colours in the arc).
Don't cross the streams...
http://www.youtube....watch?v=jyaLZHiJJnE
...it would be bad! [4whom, Apr 07 2013]
[link]
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I think a bit more explanation would help. |
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Good idea, now if I only I could find some country where droplets of water fall from the sky on a regular basis. Nope, can't think of one. |
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To be honest, I'm not sure you need the salt? |
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//explanation// //pools// |
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Each fountain is self-contained in that its water cycles continuously, all without mixing with the other fountain's supply (except when you want to remix a bit). |
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The water of each shoots up and to the side a bit, forming an arch. The arches of the fountains are close enough together to form a jumpable air-gap, creating the classic Jacob's Ladder effect. |
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I'm pretty sure there'd be some ionization of the electrolyte in between through electrolysis. If CaCl were used, Ca ions would jump from one side and Cl ions from the other, colouring the electrical arc and leaving their partners in the stream to slowly build up concentration in their pools, Ca in one and Cl in t'other; thus the need for occasional mixing it up to reform CaCl, and adding of new electrolyte to make up for the missing. |
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(+) Best idea I've read all day. |
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Ah, right. That kind of Jacob's Ladder. I was
thinking of the toy made of wood-blocks and tape.
Great, good, carry on. |
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I like this one a lot [FT], well done. I can supply MgCl2 for a colour change. (By the way, it would be CaCl2 not CaCl. NaCl works though). |
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Humidity lowers the breakdown voltage of air, so the spray of the fountain should let you get some really long arcs. |
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//Note: The linked video at 90mA current in air is enough to instantly kill anyone close enough for it to arc toward |
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You type that like it's a bad thing. |
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If you're careful about it, using laminar-flow jets and a precise "collection hole" (instead of an open pool), you could keep floating vapours and splashiness to a minimum, to keep the arc under good control.
On the other hand, since the vapours would lower the breakdown voltage, and hence increase the distance you can arc, you could get all sorts of big effects going on, if the misting is also controlled (rather than just "happening"). |
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Surely it could just be under a glass dome for safety? |
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You'd have to have a pretty hefty air circulation system to keep fog off the inside of a dome. I was thinking more along the lines of a few pairs of smoking boots marking off the "safe zone". |
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There will be a strong attraction between the streams due to their opposite charges, which might cause them to break up. Mercury might work better (with the glass dome, of course). |
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^... and coat the inside of the dome in phosphor I presume. |
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Add some argon, for pretty purple plasma, and provide some UV shielding. (If it breaks, it releases deadly voltage, mercury vapour, and nasty UV. Fun for all the family.) A phosphor would obscure your view. |
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[bigsleep], I have had the luxury of playing with an 800kV generator used for testing ceramic insulators. The standard test is seeing how the flashover voltage changes as you spray it with a hosepipe. |
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From the preliminary data gathered while researching the effects of very high voltage and/or spraying with a hosepipe on various household objects, I can conclude with reasonable confidence that spraying with a hosepipe increases the impressiveness of the arcs. However, I thoroughly agree that more experimentation should take place to put this issue to rest. |
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A remote controlled hosepipe on a tripod. We stood behind a screen with a control panel. I left that part out because I wanted to sound cool. |
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//I wanted to sound cool// |
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