Talk:Directory:Emdrive (Electromagnetic Space Drive)
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Subject: [NEC-TechRev] Chinese Say They're Building 'Impossible' Space Drive
Date: September 28, 2008 2:52:31 AM PDT
Robert,
I now see that a Chinese connection has made a theoretical simulation.
The article still impresses me as an unashamed advertisement disguised as
a press release. I am also negatively impressed by the FUD contained in it.
You had better give me funding, otherwise the Chinese will develop this
and use it to shoot satellite laser beams into your living room.
A satellite in space needs extremely low force to keep it in a stable
position.
Instead of huge amounts of energy to bounce microwave energy in a tapered
waveguide, amateur radio HAM satellites have used coils of wire with
pulses to
magnetically torque the satellite, and this since many years. No thrusters,
just a very low energy budget with a genial solution.
The force on the needle of my BS-meter, slamming against the pin, is much
more than will ever be produced by this device.
It is not necessary to fly such a device in space in order to test it,
although it could fly as a test device.
Devices actually used in satellites are "space qualified" and it is a very
long and detailed process to achieve a space-qualified rating.
Earl
Bad Science
--Penny Gruber 19:00, 28 September 2008 (PDT)
Despite some early interest, the European Space Agency has dropped all funding of SPR. What SPR appears to do is selectively pick their physics. They choose relativistic calculations for part of their analysis and Newtonian for others. This kind of lousy accounting makes things like SMOTs appear to work "with additional engineering". Let the Chinese waste their resources on this something for nothing scheme.
Slashdot - Thrust from Microwaves - The Relativity Drive
Digg – Relativity Drive could make wheels and wings obsolete
Reddit - Relativity drive: The end of wings and wheels?
Science after Sunclips: The EmDrive Story, or How to Propel Pseudoscience
See also
Repulsive gravity within the hydrogen atom
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