If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Registered Member #89
Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
So my question is: Do you think is it possible to induce Cherenkov radiation in water only by electric current off sufficient voltage (or you still need a particle accelerator)? What if I take water with salt (like NaCl) and use it as a conductor for my 500KV Marx discharge? Can the salt ions exceed the speed of light in the water?
No. Even at what you would think as huge currents electrons move very slow in a conductor. Ions even slower due to their mass and size.
Otherwise I don't see why would anyone want to build those multi-billion dollar particle acellerators to gett massive particles close to speed of light, we could just use salty water.
Registered Member #1025
Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566
Marko wrote ...
Otherwise I don't see why would anyone want to build those multi-billion dollar particle acellerators to gett massive particles close to speed of light, we could just use salty water.
Multi-bilion dollar accelerators are used to get particles of energies in GeV. All what I'm talking about is 0.29MeV which is achievable in home conditions by simple linacs. The speed of light in water is relatively low (to compare to vacuum) - the speeds of partciles in huge accelators are related to the speed of light in vacuum and not in water. You are mixing two things. But I fully accept your doubts...
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
If you get some water and copper sulphate solution you can pour a layer of water onto the denser sulphate solution. If you arange for a current to be passed through this you will see just how slowly the blue Cu++ ions move. The speed of light is a good deal faster.
Registered Member #1025
Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566
Bored Chemist wrote ...
If you get some water and copper sulphate solution you can pour a layer of water onto the denser sulphate solution. If you arange for a current to be passed through this you will see just how slowly the blue Cu++ ions move. The speed of light is a good deal faster.
Are you trying to suggest that if take a water bath with salt ions and put in series with a diode that there will be a measurable delay after the circuit is switched on. In other words the diode will emit light later than diode which is connected straight? I think if there is a measurable delay you can hardly measure it with the fastest scopes…
I also do not understand how you can see ions with your eyes (you must have really cool macro options in your retina), what you see is probably precipitated Cu which is huge to compare with a single ion and of course travels very slowly...
Registered Member #186
Joined: Thu Feb 16 2006, 07:22AM
Location:
Posts: 42
There wouldn't be a measurable delay because the electrons don't just start at one end and have to 'fill' the area between the two contacts.... when you create the voltage, electrons start moving in the entire circuit simultaneously.
It's like a water filled pipe: If you apply pressure to one end, water immediately flows from the other end... even if it takes the water at the beginning of the pipe minutes to reach the end.
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.
Cherenkov radiation, HV and home experiments
