Abstract
The Podkletnov effect is an unexplained loss of weight of between 0.05% and 0.07% detected in test masses suspended above supercooled levitating superconducting discs exposed to AC magnetic fields. A larger weight loss of up to 0.5% was seen over a disc spun at 5000rpm. The effect has so far been observed in only one laboratory. Here, a new model for inertia that assumes that inertial mass is caused by Unruh radiation which is subject to a Hubble-scale Casimir effect (called MiHsC or quantised inertia) is applied to this anomaly. When the disc is exposed to the AC magnetic field it accelerates, and MiHsC then predicts that the inertial mass of the test mass increases, so that to conserve momentum it must accelerate upwards against freefall by 0.0058 m/s2 or 0.06% of g, in good agreement with the weight loss observed. With disc rotation, MiHsC predicts an additional weight loss, but 34 times smaller than the rotational effect observed. MiHsC suggests that the effect should increase with disc radius and rotation rate, the AC magnetic field strength (as observed), and also with increasing latitude and for lighter discs.
Published Version
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