Natural Science Forum / Physics / Electromagnetism / October 2004

                    FTL by Down-converting
A method is proposed here to achieve faster than light (FTL) communication
by the use of down-converters.  A down-converter splits a photon into two
photons each having half the energy of the original photon.

See,
                http://www.lafn.org/~bd261/
hdr

Good evening everyone,
Does anybody have any experience with introducing steady state data into
FDTD, as it would be the case in a hybrid procedure? Do they need to be
ramped up or what?

They can steal iron and other metal-astroids and bring them to
earth,This is very good for stealing asteroids from enemy planets, and
very strong electromagnets can even steal smaller moons!
But we must watch out, because maybe, some day, aliens will steal our

I keep seeing people saying that gravity and the electrostatic force
are different or appears separate or must be different things, but I
have scoured the web and found little to definitively disprove it or
even anyone trying to disprove it. So I did my own experiment to see

I am searching for some experiments about the microwave oven for my studies..
Do you have some ideas ?
thank

I've got some problem. I need to derive magnetic force equations for U Shape
magnet for levitation and lateral directions.
According to the following paper:
http://leiwww.epfl.ch/publications/darrigo_rufer_maglev_00.pdf

I'm trying to do a EM problem from beginning to end, all in cylindrical
coordinates, without converting to Cartesian at all.  The problem I'm trying
to solve is quite simple, it is:  Calculate the flux through a surface given
the B-field (magnetic flux density), and the surface ...

Can anyone comment on the feasibility of using ordinary scotch tape,
pouring a pile of ferric oxide on it, brushing off the excess, and
running the ferric oxide coated tape in a reel-to-reel tape recorder
to record sound in lieu of commercial magnetic tape?

I am trying to do an experiment on tunneling of microwaves through a
narrow piece of  waveguide as barrier.
I am planning to split the beam and let one part go directly to the scope
and other part go through the barrier and watch the modulated beam on the

It's true ! I once had an IQ of 192 before I started to work with
electromagnets for several months.
Now I'm too dumb to put on my clothes, cannot write anymore and have
forgotten my real name.

In 2001 I authored a paper (and co-authored another) in which, within the
LeSage Model of Gravity, it was determined that the linear power flux [Q]
was 1.6E+08 Watts/m^2 (kg/sec^3) and field omni-directional momentum flux
[k] was 4piQ/c, or 6.707 [kg/m-sec^2].  These were ...

hi everybody. the question is simple: what's the formula to calculate
attraction force of an electromagnet (in newtons) ? other question:
has repulsion force between two magnets, the same value that
attraction force between those same magnets?

Good morning everyone,
I was wondering if anyone had come across some open source "method of
moment" (operating in the time domain) code? Is there any books or journal
papers available that would help me to put together my own code?

--- quoting AP, in part, (not to mistake Assoc. Press with Archimedes
Plutonium ---
Tenn. Lab Develops Electron Microscope
                           By DUNCAN MANSFIELD, Associated Press Writer