Date: Mon, 25 Nov 2002 13:11:48 -0500

Author: David Maiullo

Subject: Re: EM coil for propulsion


This is a multi-part message in MIME format.
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi Jeri et al:

Using my can crusher, if I put a can off center into the loops of wire
which crush it, the can will shoot out of the loops (at a fairly high
rate of speed) and be propelled as well as crushed. Generally, at 4.5
KV, the can will shoot about 10-15 feet. Is this similar to what you're
looking for?

Best, and happy turkey day, to all,

Gerald Zani wrote:
> Tappers,
> Anyone know how to discharge a large current through a coil of wire to
> propel an object?
> Something akin to 5k10.90 where a large capacitor forces a high current
> through a coil and causes the can to be pinched. But in this case the
> large current is used to force a coil of wire to extend outward like a
> spring. The expansion of the coil is used to propel an object.
> I am told that this demo is done at some schools to propel objects in
> underwater and in liquid helium. It is not listed in the Bib. I would
> like some details about the coil of wire and the amount of current.
> Thanks,
> Jerry
> Gerald Zani e-mail:
> Manager of Demonstrations phone: (401) 863-3964
> Department of Physics FAX: (401) 863-2024
> Brown University Providence, RI 02912-1843 USA
> Do a little more of that work which you have confessed to be good,
> Which you feel that society and your most Just Judge rightly demand of you.
> Cultivate the tree which you have found to bear fruit in your soil.
> If you have any experiments you would like to try, try them.
> Now's your chance.
> Henry David Thoreau, Journal entry, 1850.
Content-Type: text/x-vcard; charset=us-ascii;
Content-Transfer-Encoding: 7bit
Content-Description: Card for David Maiullo
Content-Disposition: attachment;

org:Rutgers University;Department of Physics and Astronomy
adr:;;136 Frelinghuysen Road;Piscataway;New Jersey;08854-8019;USA
title:Physics Support Specialist
fn:David Maiullo