Navigation with only addition, subtraction, and tables

Navigation with only addition, subtraction, and tables johndcook.com

In the novel Carry On, Mr. Bowditch, a sailor asked Nathaniel Bowditch to teach him how to do navigational calculations, but the man only knows how to add and subtract by counting on his fingers. He had not heard of…

3 points•ibobev•7 days ago•0 comments•

#navigation #tables #addition #subtraction #bowditch #sailor #novel #carry

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