[NewCandle] EMDrive

[Keith Nagel]

Well, come to think of it, we can't rule out thermal
effects. With ~1KW in a closed waveguide, hot air could
be venting from a gasket or seam which would look
like a directional thrust. I don't entirely buy his
explaination of a multisecond time constant, again it's
looking more like thermal effect. OTOH I haven't seen
the actual details, just the site info, so perhaps he's
addressed these thing adequately. Did you sign up for
his paper, Colin?

K.

-----Original Message-----
From: newcandle-bounces at ipdiscover.com
[mailto:newcandle-bounces at ipdiscover.com]On Behalf Of Keith Nagel
Sent: Thursday, September 07, 2006 4:47 PM
To: New energy for the new world.
Subject: [NewCandle] EMDrive


Hi All,

Colin Q. posted notice of an electromagnetic propulsionless drive,
more info about which can be found here.

http://www.shelleys.demon.co.uk/fdec02em.htm
http://www.emdrive.com/

Here's a link to Shawyers patent, GB2399601
http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB2399601&F=0

Remarkably, it's only been patented in the UK. Given the
value of the device if it proves functional, I'm left
a bit slack jawed about that... You would think he would
have ignored GB and gone straight to WIPO. 

Anyway, it's promising that the device exhibits positve and
negative thrust depending on direction, so we can
rule out thermal effects. And simple radiation pressure ought
to be orders of magnitude lower than what he measures.
How about that?

K.

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