That's interesting. That would resolve the conservation violations.
On 12/28/2016 01:54 PM, Daniel Rocha wrote:
I've seen some calculations showing that there is a toroidal electric
field within the device. I wonder if the movement is due the pull of
the magnetic field of the Earth.
2016-12-28 16:43 GMT-02:00 Stephen A. Lawrence <sa...@pobox.com
<mailto:sa...@pobox.com>>:
Just to point something out -- the EM drive /obviously/ doesn't
need to be outside the craft to work, since it doesn't eject mass.
Furthermore (and consequently), it violates conservation of
momentum, conservation of angular momentum, conservation of
energy, and conservation of mass. While data trumps theory, this
doesn't seem like the most likely explanation of the effect to me.
Gedanken: Put an EM drive in a box. Attach it to a wire. Attach
the other end of the wire to a pivot (like one of those old gas
powered toy planes people used to have before the days of radio
control). Let the box with the EM drive go. It will accelerate
in a circle, around the pivot point.
Power consumption inside the box is presumably constant. Power
generated varies in proportion to the speed of the box (power =
force * velocity). So, at some point it'll be generating more
power than it's consuming. And there's the violation of CoE.
(With a bit of cleverness you can turn it into a Type I perpetual
motion machine.)
Meanwhile it's going lickety split around the pivot, with
increasing angular momentum; with no mass ejection there's no
compensating decrease anywhere else. There's the violation of
conservation of angular momentum.
And as its velocity increases, its mass increases as gamma*m.
There's the violation of conservation of mass.
And violation of linear momentum is obvious.
On the other hand if it doesn't work, then all that's being
violated is the assumption that the handful of extremely delicate
high precision experiments that have been done to show the effect
were not somehow botched.
I'm not holding my breath on this one.
On 12/28/2016 02:02 AM, David Roberson wrote:
Russ,
Can you verify that the Chinese actually have a functioning EM
drive on their space station. Also, how much thrust are they
claiming? Finally, is that device or group of devices capable of
maintaining all of the orientation required for the station?
Dave
-----Original Message-----
From: Russ George <russ.geo...@gmail.com>
<mailto:russ.geo...@gmail.com>
To: vortex-l <vortex-l@eskimo.com> <mailto:vortex-l@eskimo.com>
Sent: Tue, Dec 27, 2016 3:45 pm
Subject: [Vo]:EM Drive need not be outside the spacecraft
A curious facet of the EM drive, such as the one now operating on
the Chinese space station is that it need not be on the outside
of the spacecraft, it’s thrust is independent of the position and
surrounding matter. This enables all manner of interesting
spacecraft geometries.
--
Daniel Rocha - RJ
danieldi...@gmail.com <mailto:danieldi...@gmail.com>
