<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
	<id>https://wiki.fusiongirl.app:443/index.php?action=history&amp;feed=atom&amp;title=Douglas_G_Torr</id>
	<title>Douglas G Torr - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.fusiongirl.app:443/index.php?action=history&amp;feed=atom&amp;title=Douglas_G_Torr"/>
	<link rel="alternate" type="text/html" href="https://wiki.fusiongirl.app:443/index.php?title=Douglas_G_Torr&amp;action=history"/>
	<updated>2026-05-12T11:36:17Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.41.0</generator>
	<entry>
		<id>https://wiki.fusiongirl.app:443/index.php?title=Douglas_G_Torr&amp;diff=6999&amp;oldid=prev</id>
		<title>JonoThora: Psionics expansion (01a + 01b): content authored / LaTeX-restored per local submodule; lint-clean.</title>
		<link rel="alternate" type="text/html" href="https://wiki.fusiongirl.app:443/index.php?title=Douglas_G_Torr&amp;diff=6999&amp;oldid=prev"/>
		<updated>2026-05-11T20:48:11Z</updated>

		<summary type="html">&lt;p&gt;Psionics expansion (01a + 01b): content authored / LaTeX-restored per local submodule; lint-clean.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Audience_Sidebar&lt;br /&gt;
| difficulty   = Intermediate&lt;br /&gt;
| reading_time = 4 minutes&lt;br /&gt;
| prerequisites = [[Psionics_Primer]]; basic general relativity; superconductivity basics.&lt;br /&gt;
| if_too_advanced_see = [[Gravitomagnetic_London_Moment]]&lt;br /&gt;
| if_you_want_the_math_see = [[Gravitomagnetic_London_Moment]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
{{Person_Vital_Stats&lt;br /&gt;
| name = Douglas G. Torr&lt;br /&gt;
| birth = (not publicly disclosed)&lt;br /&gt;
| death = (living)&lt;br /&gt;
| nationality = American&lt;br /&gt;
| field = Physics; aerospace engineering&lt;br /&gt;
| affiliation = University of Alabama in Huntsville (UAH, physics); previously Utah State, Penn State&lt;br /&gt;
| key_works = Li-Torr 1991, 1992 &amp;#039;&amp;#039;Physical Review B&amp;#039;&amp;#039;; Li-Torr 1993&lt;br /&gt;
| era = Late 20th to early 21st century&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
== Summary ==&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Douglas G. Torr&amp;#039;&amp;#039;&amp;#039; is an American physicist at the University of Alabama in Huntsville (UAH), known principally as co-author with [[Ning_Li]] of a series of papers (1991-1993) proposing that rotating superconductors should generate detectable gravitomagnetic fields — the theoretical basis of the &amp;quot;gravitomagnetic London moment&amp;quot; research programme that later produced [[Martin_Tajmar|Tajmar]]&amp;#039;s experimental claims.&lt;br /&gt;
&lt;br /&gt;
== Life ==&lt;br /&gt;
&lt;br /&gt;
Torr completed his PhD in atmospheric and space physics. He held positions at Utah State University and Pennsylvania State University before joining UAH, where he was Professor of Physics and Distinguished Research Scientist.&lt;br /&gt;
&lt;br /&gt;
His mainstream publication record is in atmospheric physics and ionospheric chemistry — topics largely independent of the gravitomagnetic work for which he is best known in the alternative-physics community.&lt;br /&gt;
&lt;br /&gt;
== Key Contributions ==&lt;br /&gt;
&lt;br /&gt;
=== Gravitomagnetic London moment papers ===&lt;br /&gt;
&lt;br /&gt;
In a series of papers with [[Ning_Li]] (Li-Torr 1991 &amp;#039;&amp;#039;Physical Review B&amp;#039;&amp;#039; 43: 457; Li-Torr 1992 &amp;#039;&amp;#039;Physical Review B&amp;#039;&amp;#039; 46: 5489; Li-Torr 1993), the authors propose that rotating Type-II superconductors should generate detectable gravitomagnetic fields. The mechanism: the superconducting condensate&amp;#039;s coherent quantum state produces a gravitomagnetic analogue of the London moment (the magnetic field generated by a rotating superconductor).&lt;br /&gt;
&lt;br /&gt;
If the proposal is correct, gravitomagnetic effects in superconductor experiments should exceed the standard GR predictions by ~ 10&amp;lt;sup&amp;gt;11&amp;lt;/sup&amp;gt; orders of magnitude.&lt;br /&gt;
&lt;br /&gt;
=== Atmospheric and ionospheric physics ===&lt;br /&gt;
&lt;br /&gt;
Torr&amp;#039;s mainstream career has been in upper-atmospheric physics — extensive publications on thermospheric composition, ionospheric ion chemistry, and atmospheric remote sensing.&lt;br /&gt;
&lt;br /&gt;
== Reception ==&lt;br /&gt;
&lt;br /&gt;
The Li-Torr gravitomagnetic-London-moment proposal has received attention from both mainstream and alternative-physics communities. The theoretical derivation has been criticised (Wald 1992, others); the Tajmar group&amp;#039;s experimental tests have produced ambiguous results that may or may not support the proposal.&lt;br /&gt;
&lt;br /&gt;
== Bibliography ==&lt;br /&gt;
&lt;br /&gt;
* Li, N., Torr, D. G. (1991). &amp;quot;Effects of a gravitomagnetic field on pure superconductors.&amp;quot; &amp;#039;&amp;#039;Physical Review D&amp;#039;&amp;#039; 43: 457–459.&lt;br /&gt;
* Li, N., Torr, D. G. (1992). &amp;quot;Gravitational effects on the magnetic attenuation of superconductors.&amp;quot; &amp;#039;&amp;#039;Physical Review B&amp;#039;&amp;#039; 46: 5489–5495.&lt;br /&gt;
* Plus mainstream atmospheric-physics publications.&lt;br /&gt;
&lt;br /&gt;
== See Also ==&lt;br /&gt;
&lt;br /&gt;
* [[Ning_Li]]&lt;br /&gt;
* [[Martin_Tajmar]]&lt;br /&gt;
* [[Gravitomagnetic_London_Moment]]&lt;br /&gt;
* [[Superconductor_Gravity_Experiments]]&lt;br /&gt;
&lt;br /&gt;
== External Links ==&lt;br /&gt;
&lt;br /&gt;
* University of Alabama in Huntsville physics faculty archive.&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Li, N., Torr, D. G. (1991, 1992). [as above]&lt;br /&gt;
&lt;br /&gt;
[[Category:Psionics]]&lt;br /&gt;
[[Category:Biographies]]&lt;br /&gt;
[[Category:Gravitomagnetism]]&lt;/div&gt;</summary>
		<author><name>JonoThora</name></author>
	</entry>
</feed>