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Research collection

Ning Li Research Library

Published work, experiment reports, and source trails on gravity–superconductor interactions.

What is here

This library starts with Ning Li’s identifiable published and coauthored record, then tracks the later experimental, NASA/DoD, university, business, patent, and technical-response trails. Each source is labeled by type so a journal paper, a technical report, and a later retelling never get treated as the same thing.

Primary research record

Core publications

1991

Effects of a gravitomagnetic field on pure superconductors

N. Li and D. G. Torr · Physical Review D 43, 457

Study of the predicted response of a pure superconductor to external magnetic and gravitomagnetic fields.

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1992

Gravitational effects on the magnetic attenuation of superconductors

Ning Li and D. G. Torr · Physical Review B 46, 5489

Theoretical treatment linking gravitational effects, magnetic attenuation, conductivity, and permeability in superconductors.

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1993

Gravitoelectric-electric coupling via superconductivity

Douglas G. Torr and Ning Li · Foundations of Physics Letters 6(4), 371–383

Proposes gravitoelectric and gravitomagnetic effects associated with superconductivity in an applied-field model.

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1997

Static test for a gravitational force coupled to type II YBCO superconductors

Ning Li, David A. Noever, Glen A. Robertson, Ron Koczor, and Whitt Brantley · Physica C 281, 260–267

Experimental paper on static tests involving type II YBCO superconductors and gravitational-force coupling.

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Context and follow-up

Technical responses and institutional trail

1999 technical comment

Edward G. Harris published a comment on the 1993 Torr–Li paper in Foundations of Physics Letters.

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NASA / Marshall and later technical reports

Collection track for reports and records involving Robertson, Noever, Koczor, Marshall Space Flight Center, and related gravity-superconductor work.

DoD and historical technical context

A publicly released DIA survey cites the Li–Torr work and provides a source trail for later gravity-superconductor research.

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Patent and business research

Official patent and business-record searches for Ning Li, AC Gravity, and named collaborators are maintained as a separate collection track.

Library method

This is a growing research collection. It preserves primary literature, reported experimental work, institutional records, and technical responses with their source type intact. Full publisher PDFs are linked, not copied, unless distribution rights are clear.