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Location: UFOUpDatesList.Com > 2011 > Jun > Jun 27

Re: "Revolutionary" Wingless Aircraft

From: Martin Shough <parcellular.nul>
Date: Mon, 27 Jun 2011 12:59:06 +0100
Archived: Mon, 27 Jun 2011 09:18:32 -0400
Subject: Re: "Revolutionary" Wingless Aircraft

>From: William Treurniet <wtreurniet.nul>
>To: post.nul
>Date: Sun, 26 Jun 2011 09:47:51 -0400
>Subject: Re: "Revolutionary" Wingless Aircraft

>>From: Martin Shough<parcellular.nul>
>>Date: Sun, 26 Jun 2011 10:23:04 +0100
>>Subject: Re: "Revolutionary" Wingless Aircraft


>>>>Austrian Company Debuts Revolutionary Wingless Aircraft


>>I agree. The first article made my scam antennae twitch with
>>those "frictionless bearings". Yeah, right - nanokelvin
>>superfluid lubrication or whatever that can be "repaired by a
>>local car mechanic"?  I think not!

>Apparently, a magnetic field can be used to create a

You are right. There are frictionless bearings in the sense that
the rotating surfaces are not in contact and thus have zero
frictional wear. I suppose that is good enough for the claim
made, actually.

My scam alarm went off because I was thinking in terms of
fundamental physics, where such a bearing should more properly
be described as "near frictionless". A bearing that continues to
rotate freely forever with zero losses is a perpetual motion
machine, and people who don't believe in thermodaynamics have
been trying to make PMMs out of magnets since Pontius was a
pilate, without success. I'm sure there are always losses (in
any classical system , anyway) for example due to eddy currents,
etc. Which is why I said

>This article somewhat redeems the claim in the form of "near-
>frictionless bearings"

I accept that my response was inappropriate. From an engineering
point of view the bearings can be as good as frictionless.

Martin Shough

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