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.
Banned on April 7, 2007 Registered Member #277
Joined: Fri Mar 03 2006, 10:15AM
Location: Florida
Posts: 157
Stop4:
Thanks, that did the trick, I think.
Looking at Water on the Magnetic Properties & Susceptibilities Chart water appears to be the most negative measurement on the list, therefore, should I assume that translates to water being the most diamagnetic liquid? Sometimes I tend to oversimplify, so I'm asking. CM
Registered Member #75
Joined: Thu Feb 09 2006, 09:30AM
Location: Montana, USA
Posts: 711
I also looked at the list, I spotted only three liquids, being: Mercury (liquid) Hg -33.4 Nitric acid HNO3 -19.9 Water H20 -7.2×10-7 emu The units on water are different (emu instead of cgs units, whatever that is), so it is impossible to compare - at least for me.
What is your application for this stuff? I am asking because maybe a fine metal power could be substituted for the liquid, which would make things much easier.
PS: some more data on liquids: Compound Name (−106 ×SI Units:Dimensionless)
Banned on April 7, 2007 Registered Member #277
Joined: Fri Mar 03 2006, 10:15AM
Location: Florida
Posts: 157
I wondered what EMU meant also in the H20 measurement. My application is a variation on this demonstration but I would prefer to speed things up by using a liquid that is more diamagnetic than water... if it exists and doesn't require exotic conditions to exist as a liquid. CM
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Electromagnetic units rather than centimetre gram second units. Ugh! Anyway, if what you want to achive is a demonstration of liquid drops repeled by a magnet, cheat. A helium balloon in air is aparently repeled by the earth's gravitational field. Clearly that's not because it has negative mass, but because the air has a bigger positive mass. In the same way a drop of slightly diamagnetic oil in a strong solution of a paramagnetic salt like MnCl2 would be repelled quite strongly. Paramagnetic effects are typically a hundred times bigger than diamagnetic ones so, even allowing for the fact that the solution isn't pure paramagnetic MnCl2 the overall effect should be bigger. Of course, you could look for materials which are soluble in oil and paramagnetic then use a solution of that with pure water - the water would be repelled and the paramagnetic solution attracted. It's a lot easier to find MnCl2 than, for example, Ferric acetylacetonate.
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.
H3O or H40?
