Electrohydrodynamics Experiment
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Uploaded by hdemartin on Mar 19, 2008
High voltage pulsed DC into an enamel-coated wire electrode, with the other electrode being a steel tube 1 inch in diameter immersed in distilled water. The enamel was chipped very slightly in parts of the wire. The point of this video is to show high voltage doing something funny to the surface tension of the water, ionizing little gas bubbles and causing them to spin around. High voltage was from a rectified output of a toroidal flyback transformer.
(music by Orphaned Land).
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Uploader Comments (hdemartin)
All Comments (14)
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kool
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this helps to cool down electrical circuits to stop them from frying but if u attached them to metals that were gonna get really hot would it cool down? and say if u had a lot covering an entire airplane, and that airplanes metal body would get as hot as 1650 degrees Celsius would it cool the metal down to stop it from falling apart?
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i.m having problem with building 5KV square wave generator or voltage amplifier
Delivered: Square wave as
drive 2-20V output 5KV capacitive load or i(nductive load but nit critical)
Frequency 10 -40KHz but 0 to 100khz will be the best.
question:
If I deliver 1100V square to ferrite transformer giving me 5000V
will than square be at better shape than if I use 20V to get 5000V?
THANK YOU FOR YOUR WORK
Wesley
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The bubbles spin as a result of lenz law. The magnetic field is strong enough to induce diamagnetism in the oxygen bubbles as well as the oxygen still bonded to the hydrogen in the h2o. Look up MHD (magnetohydro-drive)
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The bubbles are hydrogen and oxygen, a result of electrolysis.
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That was an awesome video. Very curious visual effects. Could you provide more details as to the setup in order to replicate these effects?
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no kidding....water is dielectric. It responds to electrical pulses, at the molecular level, by ionizing the water locally. the current is a result of ionizing and deionizing molecules. Swapping electrons causes an electromagnetic cuurent.
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So is the wire attached to one end of the transformer while the tube is attached to the other end of the transformer? Does this circuit have an isoltaed ground? Is the circuit ungrounded?
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hay you must be giveing some good info if your video's are ao longer avable like some video from other people and there referace pages don't connect
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Hi! Whats the Voltage/Freq ?
InventorGadget 3 years ago
I'd estimate the voltage to be around 3kV. Frequency around 5kHz. 4-8 kHz is where my toroidal iron powder transformer (80 primary, 600 secondary) put out the highest voltage. 12 volt square wave into that created 3kV out due to what I guess must be a flyback effect from core saturation.
hdemartin 3 years ago