[TowerTalk] URI magic antennas

[Dave Bernstein]

It is no longer necessary to use liquid helium to attain
superconductivity. When last I checked, advances with ceramic materials
had pushed superconductivity close to liquid nitrogen territory, and the
goal of room-temperature superconductivity was still considered a
possibility. See
http://www.newscientist.com/news/news.jsp?id=ns99991618, for example...

    73,

        Dave, AA6YQ

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of
gdaught6 at stanford.edu
Sent: Tuesday, June 08, 2004 11:59
To: towertalk at contesting.com
Subject: Re: [TowerTalk] URI magic antennas



What about supeconducting loading coils and/or elements?  One could 
generate VERY high currents with low losses (unless you count the 
energy requirement of keeping an RF-transparent thermos of liquid 
helium full.)  Just the sort of thing a University Physics lab could 
do. 

Let's submerge our screwdriver mobile antennas in a cryogenic 
container.  An additional advantage would be that no bugs would nest 
in there!

73,

  George T. Daughters, K6GT



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