Analysis of Don Kelly's Magnet Drop Tests

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Scientific Paper
Title Analysis of Don Kelly\'s Magnet Drop Tests
Author(s) Charles A Yost, Donald A Kelly
Keywords error analysis, experiment, experimental error, gravitomagnetics, gravity, plates
Published 1997
Journal Electric Spacecraft Journal
Number 25
Pages 28-29


The following report summarizes an analysis of the magnet plate drop test data provided by Don Kelly. It indicates that significantly slower drop times can be produced by a falling plate being tilted such that one edge will impact first, delaying the time at which the impact switch will be triggered. In addition, there are a number of variables not isolated that could cause widely scattered data. To this extent, the experiment needs to be more tightly controlled. The slower drop times reported by Kelly, as a result do not establish a magnetic-gravitational interaction.