Replies

Tinkerer makes a claim, usually pretty outlandish and impossible.

Turns out there really are theoretic bases for this phenomenon, and, although Podkletnov is apparently difficult to work with, his observations really should be taken seriously. For example:

"The London equations for superconductors in a gravitational field." D K Ross, J. Phys A: Math Gen. 16 (1983) 1331-1335.
"Gravitational shielding." Donald H. Eckhardt, Physical Review D v. 42 n. 6 (15 Sep 1990) 2144-2145.
"Effects of a gravitomagnetic field on pure superconductors." N. Li and D. G. Torr, Physical Review D v. 43 n. 2 (15 Jan 1991) 457-459.
"Interaction between gravity and moving superconductors." H. Peng, G. Lind, and Y.S. Chin, Univ. Alabama (CSPAR), General Relativity and Gravitation v. 23 (11), p. 1231-1250, 1991
"Absorption of gravitational waves" Corneliu D. Ciubotariu, Physics Letters A v. 158, 19 Aug 1991, 27-30.
"Gravitational effects on the magnetic attenuation of superconductors." N. Li and D. G. Torr, Physical Review B v. 46 n. 9 (1 Sept 1992) 5489-5495.
"Absence of a Gravitational Analog to the Meissner Effect." C. Ciubotariu and M. Agop, Technical University of Iaso (Romania), Department of Physics, General Relativity and Gravitation v.28 (4), p. 405-412, Apr 1996.
"Does a Superconductor Shield Gravity?" C.S. Unnikrishnan, Physica C v. 266 (1-2), p133-137, 20 Jul 1996.
"A Unified Theory Based on SO(5) Symmetry of Superconductivity and Antiferromagnetism." Shou-Cheng Zhang, Science, v. 275, 21 Feb 1997.
"Superconductor-mediated modification of gravity? AC motor experiments with bulk YBCO disks in rotating magnetic fields." David Noever, Ron Koczor, and Rick Roberson*, NASA MSFC ES76, Space Sciences Lab, Huntsville, AL 35812, *Tomorrow Tools, NASA MSFC, Huntsville, AL 35812. To be presented on Monday, July 13 in Cleveland at the 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Cleveland Convention Center Cleveland, OH July 12-15, 1998, Special Session of Breakthrough Propulsion Physics (Session 6-APC-1), Monday Morning, 9:00 AM Chaired by: M. MILLIS, NASA Lewis Research Center, Cleveland, OH, 10:30 AM AIAA-98-3139