For any here puzzled-
Pointing out the obvious:
If, while temperature is rising, some increasing portion of a resistive
conductor becomes superconductive, the overall resistance of the entire
conductor will decrease. If this decrease exceeds an increase which
temperature rise is causing at the same time, you get non-monotonic
resistivity vs temp.
Ol' Bab
On 9/12/2012 1:36 AM, pagnu...@htdconnect.com wrote:
Jeff,
The reports cited in the presentation are of hi-temp superconductivity (I
believe), rather than just non-monotonic resistivity vs. temp phenomena.
It may be worth looking at the recently reported hi-temp superconductivity
seen in fractal materials - e.g.,
"High-temperature superconductivity: The benefit of fractal dirt"
http://www.nature.com/nature/journal/v466/n7308/full/466825a.html
"Fractals make better superconductors"
http://www.nanotech-now.com/news.cgi?story_id=39593
"Fractals promise higher-temperature Superconductors"
http://www.stealthskater.com/Documents/Fractals_04.pdf
"X-rays control disorder in superconductor"
http://physicsworld.com/cws/article/news/2011/aug/31/x-rays-control-disorder-in-superconductor
"Fractals boost superconductivity"
http://physicsworld.com/cws/article/news/2010/aug/13/fractals-boost-superconductivity
-- Lou Pagnucco
Jeff Berkowitz wrote:
To answer my own question: yes, here
http://lenr-canr.org/acrobat/CelaniFcunimnallo.pdf on page 3, in item (3)
of the numbered list.
Of course, it could be some unrelated effect; but decreasing electrical
resistance with increasing temperature is very odd, and it certainly is an
interesting coincidence.
Jeff
On Tue, Sep 11, 2012 at 10:06 PM, Jeff Berkowitz <pdx...@gmail.com> wrote:
Lasers not necessary? Hasn't Celani been reporting a negative
temperature
coefficient of resistance that appears about the time his processed
wires
begin producing heat? I might have this wrong ...
Jeff
On Tue, Sep 11, 2012 at 9:59 PM, <pagnu...@htdconnect.com> wrote:
"Low Energy Neutron Reaactions (LENRs)"
http://www.slideshare.net/lewisglarsen
-- or at --
http://www.slideshare.net/slideshow/embed_code/14256059?hostedIn=slideshare&referer=http%3A%2F%2Fwww.slideshare.net%2Flewisglarsen#
- proposes that high temp superconductivity may develop in surface
plasmons when very high (10^11 V/m) E-field gradients develop at the
interface between collectively oscillating electrons and collectively
oscillating protons.
Perhaps this is testable using laser pulses, as described in -
"Surface plasmon enhanced electron acceleration with few-cycle laser
pulses"
http://www.szfki.hu/~dombi/DombiLPB27_291.pdf
- since they can create field gradients of at least 3.7 X 10^11 V/m
(p.293)
-- Lou Pagnucco
