Emdrive

Forum: SSI-List
Thread: Emdrive

# 21665 byGARY ANSORGE on May 16, 2007, 9:18 a.m.
Member since 2022-08-22

Different effective velocities? What the heck does
that mean? How can ANY electromagnetic energy have
"different" velocities when C is the determining
velocity of ALL electromagnetic radiation in this
universe?

I still think it's double talk,,,

Gary 7

> "The crucial part, as he explained, is that it is a
> relativistic effect that arises because the waves
> being reflected at the two ends of the conical
> cavity
> into which the microwaves are injected have
> different
> effective velocities, and thus different frames of
> reference, and that a closed microwave wave guide is
> an open system in terms of relativity. "
>
> As I understand this, it means that the microwaves
> that are being reflected in the chamber are
> preferentially pushing on one side of the chamber.
> Bizarre.
>
> Ed
>
> > Hi,
> >
> > I'm skeptical too. It would be neat if it were
> > true.
> > But then again all my work on a Space Gas Station
> > would be for naught...
> >
> > This sort of reminds me of an article by
> > Dr.Alexander
> > Bolonkin, 3 or 4 or 5 or so years ago in Jour. of
> > Brit. Interplanetary Soc. (JBIS) on using light
> for
> > space propulsion. In his article however, he
> didn't
> > settle on a single reflection, as a Solar-Sail
> might
> > enjoy. But he went on to describe a system of
> > mirrors
> > and lenses that would reflect the light beam back
> > and
> > forth 10s of thousands of times, extracting all of
> > it's energy. Admittedly, it's not my field, but
> > having a bachelor's in Physics, I could just
> barely
> > follow along. I wonder if this microwave device
> is
> > reflecting microwaves off of something out there,
> or
> > down here? A very high-Q copper cone, could
> > indicate
> > one end of such a system???
> >
> > Dave Handwerk
> >
> > --- GARY ANSORGE dead_naked_drummer@...
> >
> > > Ummm, photon drive. Highest theoretical specific
> > > impulse possible but unless he's figuered out a
> > way
> > > to
> > > convert one form of energy(from solar cells) to
> > > another with nearly 100% efficiency, it's not
> > likely
> > > to be any better than a solar sail,,,
> > >
> > > On the other hand maybe he's stumbled upon some
> > > interaction between micro waves and the solar
> > > magnetic
> > > field, or something.
> > >
> > > I'm skeptical!
> > >
> > > GAry 7
> > >
> > > > On May 15, 2007, at 18:07 UTC, Combs, Mike
> > > >
> > > > > I found it:
> > > >
> > >
http://www.eurekamagazine.co.uk/article/9657/No-propellant-drive-prepares-for-space-and-beyond.aspx
> > > >
> > > > Thanks, Mike.
> > > >
> > > > > My first thought was that maybe it qualified
> > as
> > > a
> > > > type of photon
> > > > > drive, but now I'm not sure what the heck
> it
> > > is.
> > > >
> > > > Ah yes, I remember reading about this a couple
> > > years
> > > > ago. It's a weird
> > > > beast, to be sure, and I'm staying in the
> > > > "skeptical" camp for now.
> > > > Still, it sounds like they're making progress
> > and
> > > > doing the right
> > > > things, so I'll wish them the best. Even if
> > their
> > > > theory is all wrong
> > > > and it ultimately turns out to be just a
> photon
> > > > drive, it may still be
> > > > useful.
> > > >
> > > > Cheers,
> > > > - Joe
> > > >
> > > >
> > > > --
> > > > Joe Strout -- joe@...
> > > > Strout Custom Solutions
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > > arrives.
> > >
> > wherever you're surfing.
> >
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TV dinner still cooling?