David--
You stated:
<<<After the drive is shut down the ship stops accelerating and comes to rest
in space. Even though the new velocity is different than the old one before the
drive operates, a guy onboard the ship can not determine that he is moving. >>>
Yes he can determine he is moving. All he needs to do is look out the window
and see that he is moving relative to objects that were fixed before he
started his travel and are assumed to have remained fixed.
Bob
----- Original Message -----
From: David Roberson
To: vortex-l@eskimo.com
Sent: Sunday, November 23, 2014 9:21 PM
Subject: Re: [Vo]:They call me a moron. A reply.
The fact that energy can be extracted from the battery to drive the microwave
source is certainly possible. No one will ague against that point. The
problem is that this energy can be depleted without having anything to show for
its loss. If taken to the extreme most of the ship can be converted into
energy by some nuclear process to supply power for the drive mechanism.
After the drive is shut down the ship stops accelerating and comes to rest in
space. Even though the new velocity is different than the old one before the
drive operates, a guy onboard the ship can not determine that he is moving. He
will not have any kinetic energy relative to himself. He sees that his ships
mass has depleted but has nothing to show where it went. With a normal drive
the guy can see the exhaust that is moving relative to him which contains all
of the converted energy.
Dave
-----Original Message-----
From: Eric Walker <eric.wal...@gmail.com>
To: vortex-l <vortex-l@eskimo.com>
Sent: Mon, Nov 24, 2014 12:02 am
Subject: Re: [Vo]:They call me a moron. A reply.
On Sun, Nov 23, 2014 at 8:26 PM, David Roberson <dlrober...@aol.com> wrote:
I encourage anyone out there with knowledge about how to overcome the
obvious problems to offer their input.
One thought here -- the "reactionless drive" that I am aware of being in the
recent news is the EmDrive. That one involves the generation of microwaves and
their reflection in a cavity. It's not clear whether anyone other than Nasa
and the inventor believe that it works as advertised. But if it does, note
that energy must be expended to generate the microwaves, e.g., by a battery, to
which the usual E=mc^2 conversion will apply.
Eric
