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 #1806
Joined: Sun Nov 09 2008, 04:58AM
Location: USA
Posts: 136
Oh. My. Gosh... that's an excellent idea!
The nice thing is that all you would need is a triggered spark gap... ahem... a model rocket pull a thin wire into a cloud... the other end of the wire attached to the work coil.
I think a limiting factor would be the quality of the "grounding" on the other end of the work coil.
Registered Member #1911
Joined: Mon Jan 05 2009, 06:30PM
Location: Salem, Oregon, USA
Posts: 165
To shrink a car, wouldn't you need current on the order of tens of thousands of amps? I know that lightning doesn't deliver that.
You could build a transformer, or a capacitor made out of acrylic, just like with the Lichtenburg figures you can see sold online. I suppose, though, that a capacitor wouldn't be much help. I'd guess that the dI/dT of the breakdown of the air is a bit better than for the acrylic capacitor.
There's also the fact that the acrylic capacitor would have to be near the size of a small building to hold the charge of lightning, maybe bigger.
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
An AK-47 bullet packs about 2kJ. So anything with bullets/explosives will beat electricity for destructive power hands down, for almost averything. Certainly for destroying cars. The biggest Tesla coil might just put a little pinhole in the paintwork and a capacitor bank to equate to even a small amount of explosive would be huge.
BTW you can shrink steel cans like aluminum cans. Problem is that up to perhaps 2 Tesla there is the attractive force opposing the eddycurrent force of repulsion. Above that, the iron magnetically saturates and increased induction will give a greater eddy current force. Pics are here. Dont expect much effect until 4kJ. At this energy an aluminium can is torn in two and the ends are 50 feet away.
We really do need decent EM weapons like in most first person shooters. Remember the BFG9000.
It seems so foreign in Australia where there is not the same gun culture and nowhere near the same gun availability.
Registered Member #1262
Joined: Fri Jan 25 2008, 05:22AM
Location: Maryland, USA
Posts: 451
Along the lines of TDU's super destructive idea, why not take a page out of the mythbusters book and mix a huge batch of thermite to melt the car into a puddle of slag?
You can substitute the iron oxide for plaster powder to make things easier.
... not Russel! Registered Member #1
Joined: Thu Jan 26 2006, 12:18AM
Location: Tempe, Arizona
Posts: 1052
To be complete, though, it must use high voltage or high current in some manner -- perhaps to set off the thermite. Super awesome bonus points if one manages to use something from each of the major 4hv topics. Something like a Rube Goldberg device that uses a radio-activated coilgun to switch on a PIC, which then displays a countdown and switches on an NST, which powers a TC whose sparks ignite the starter for the thermite, which then melts the car.
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.
God Bless America!
