Experimental Search for New Fundamental Forces

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Professor Boynton is currently carrying out a series of experiments to detect a possible composition-dependent force of intermediate range. Such a new fundamental interaction, would have a strength less than 0.01% of gravity for a range of 250 m. His instrument, in addition to being sensitive is simple, portable, and quite inexpensive. He intends to achieve from one to three orders of magnitude reduction in both systematic and statistical uncertainty using design and operation strategies that are straightforward extensions of his current work. This improvement in measurement capability will allow a significant step toward resolving ambiguities that currently shroud the existence of a new composition-dependent interaction. The portability of his instrument enables both laboratory and field experiments at a variety of sites.