Charles Spalding builds a wooden bell
Last updated: May 1, 2018 at 1:23 am
[ 1775 ] Scottish inventor Charles Spalding builds a wooden bell that can be maneuvered by its occupants. The air supply is based on Halley’s barrel system.
SOURCE:
Researched by Diving Almanac & Book of Records official
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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.