HALLEY, Sir Edmond
Last updated: May 7, 2017 at 19:37 pm
Astronomer, geophysicist, mathematician, meteorologist, and physicist; built a diving bell with renewable air supply in 1691; dove to 18 m (60 ft) with five companions in the River Thames for over 90 minutes; later improved dive time to over 4 hours; suffered one of the earliest recorded cases of middle ear barotrauma while using the bell; Halley’s Comet is named after Edmond Halley.
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Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.