The Synchronome company manufactured electrically operated master clocks, patented in 1907, such as the Shortt-Synchronome clock.
This clock was purchased in 1929 and used in physicist Paul R. Heyl's measurement of the gravitational constant.
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The IBA is run by the James Shortt, also known as James Shortt of Castleshort, or The Baron Castleshort, who was accused 2009 by a British tabloid newspaper as passing himself off as a much-decorated SAS and Parachute Regiment veteran.
In March 2009, Irish media uncovered the fact that Shortt's baronial "castle" was in fact only a modest house built within the village of Castlebellingham.