Right. Understood. Maybe better questions would be "How did they measure the weight change?" and "How can they be sure that the difference in weight isn't merely the manifestation of a gravity-opposing force instead of a gravity-shielding one?" I didn't see anything in these papers to answer these questions.

---J

<snip>
>Under superconduction in the gravity of earth, an object can experiences a change in weight. The change in weight could only happen if the mass of the object increased or decrease, maybe from absorbing or releasing energy, or the force of gravity were alter exerting greater or lessor force on the same mass. Under superconducting conditions, it appear that the gravity force on the mass is shielded, rather than the mass of the object being altered. The shielding effect of superconduction may break the symmetry of gravity.
>Such shielding of gravity could be very beneficial to man, such as acting as an unlimited souce of propulsion to drive industry, transportation, and even space exloration.
>
>Regards,
>
>LelandJ