Ever Seen a "Lifter" fly?

The link you posted above regarding ionic wind fails to account for
the effect observed in a vacuum:


Ah, a Bussard Ram Jet!

Don

--
Wm. Donald (Don) Tabor Jr., DDS
PP-ASEL
Chesapeake, VA - CPK, PVG

Larry Dighera wrote:

The link you posted above regarding ionic wind fails to account for
the effect observed in a vacuum:

There's a fairly comprehensive site on lifter theory
summarizing experimental results he

http://sudy_zhenja.tripod.com/lifter_theory/main.html

They claim:

" There is no experimental results in deep vacuum. ... All
experiments in low vacuum made in this group showed no
thrust (due to plasma formation between electrodes) as
expected. "

Extremely low forces can be produced by:
1) electron emission from heated cathode
2) interaction of accelerated electrons with walls of the
chamber
3) thrust by electromagnetic radiation.

The first two work only in small chambers. The last
produces real but unusably low force. Most contrary results
showing lifter force in a vacuum are alleged to be
unreproduceable or the result of poor vacuum.

Todd Pattist
(Remove DONTSPAMME from address to email reply.)
___
Make a commitment to learn something from every flight.
Share what you learn.

No, this isn't anti-gravity, but the link doesn't tell the full story. It's
a good chunk of it, but not all of it. No one has come up with a
comprehensive, predictive model of what's going on. Back of the envelope
calculations that I've done with some EE friends and even checked with a
physics professor don't account for all of the force, so the mechanism must
be a bit more complicated than what we put in our model. As soon as I
finish with my thesis (MSEE in medical image processing) and graduate, I'll
be moving to Boston where I'll join a friend who just got funding for a
$10,000 3.5kW high voltage power supply that we plan to use to refine our
models.

I am cautious but very optimistic that this phenomenon will find uses that
include flying on one scale or another. It's just a matter of miniturizing
the power supplies enough, and I've been working on some ideas that I think
could work. It's very exciting, but not magic.

-Aviv

"Dave Jacobowitz" wrote in message
om...
This explains how these lifters fly:

http://www.wikipedia.org/wiki/Biefeld-Brown_effect

No antigrav here, sorry to say.

-- dave jacobowitz
-- jacobowitz73 -at- yahoo.com
-- PP-ASEL and EE

It's not ion wind. It's related to what's known as a momentum shift related
to the right hand rule of force. The force is generated in a vacuum as
well.

"Aviv Hod" wrote in message
...
No, this isn't anti-gravity, but the link doesn't tell the full story.
It's
a good chunk of it, but not all of it. No one has come up with a
comprehensive, predictive model of what's going on. Back of the envelope
calculations that I've done with some EE friends and even checked with a
physics professor don't account for all of the force, so the mechanism
must
be a bit more complicated than what we put in our model. As soon as I
finish with my thesis (MSEE in medical image processing) and graduate,
I'll
be moving to Boston where I'll join a friend who just got funding for a
$10,000 3.5kW high voltage power supply that we plan to use to refine our
models.

I am cautious but very optimistic that this phenomenon will find uses that
include flying on one scale or another. It's just a matter of
miniturizing
the power supplies enough, and I've been working on some ideas that I
think
could work. It's very exciting, but not magic.

-Aviv

"Dave Jacobowitz" wrote in message
om...
This explains how these lifters fly:

http://www.wikipedia.org/wiki/Biefeld-Brown_effect

No antigrav here, sorry to say.

-- dave jacobowitz
-- jacobowitz73 -at- yahoo.com
-- PP-ASEL and EE

Can somebody spare me a lot of clicking and tell me what efficiencies
have been measured?

Don