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Library / Mathematics / On the History of Gunter's Scale and the Slide Rule During the Seventeenth Century / Braille

On the History of Gunter's Scale and the Slide Rule During the Seventeenth Century ⠃⠗⠋ braille edition

Grade 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.

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79,091 braille cells · 82 embossed pages at 40×25 · 346 unrepresentable characters omitted

⠼⠁⠋⠊⠙⠀⠠⠺⠁⠅⠑⠇⠽⠄⠎⠀⠏⠗⠑⠋⠁⠉⠑⠀⠙⠁⠞⠫⠀⠼⠁⠋⠋⠙⠂⠀
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⠁⠙⠙⠎⠀⠠⠁⠝⠀⠠⠁⠏⠏⠢⠙⠊⠭⠀⠉⠕⠝⠞⠁⠔⠬⠀⠠⠥⠎⠑⠀⠷⠀
⠠⠊⠝⠌⠗⠥⠍⠢⠞⠎⠀⠀⠀⠀⠀⠍⠕⠌⠀⠥⠎⠑⠋⠥⠇⠀⠔⠀⠠⠝⠁⠧⠊⠛⠁⠞⠊⠕⠝⠲
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⠠⠊⠝⠌⠗⠥⠍⠢⠞⠀⠲⠀⠲⠀⠲⠀⠉⠁⠇⠇⠫⠀⠁⠀⠠⠓⠕⠗⠊⠵⠕⠝⠞⠁⠇⠇⠀
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⠼⠁⠛⠠⠕⠥⠛⠓⠞⠗⠫⠄⠎⠀⠙⠑⠎⠉⠗⠊⠏⠞⠊⠕⠝⠀⠷⠀⠦⠀⠉⠊⠗⠉⠥⠇⠜⠀
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⠎⠇⠊⠙⠑⠀⠗⠥⠇⠑⠀⠷⠀⠼⠁⠋⠉⠉⠂⠀⠵⠀⠺⠑⠇⠇⠀⠵⠀⠁⠀⠙⠗⠁⠺⠬⠀⠷⠀⠮
⠀⠉⠊⠗⠉⠥⠇⠜⠀⠀⠀⠀⠀⠎⠇⠊⠙⠑⠀⠗⠥⠇⠑⠂⠀⠁⠗⠑⠀⠗⠑⠏⠗⠕⠙⠥⠉⠫⠀⠔
⠀⠠⠉⠁⠚⠕⠗⠊⠄⠎⠀⠠⠓⠊⠌⠕⠗⠽⠀⠷⠀⠮⠀⠠⠎⠇⠊⠙⠑⠀⠠⠗⠥⠇⠑⠂⠀⠀⠀⠀
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⠷⠀⠮⠀⠠⠛⠗⠁⠍⠍⠑⠇⠕⠛⠊⠁⠀⠠⠊⠀⠊⠎⠀⠵⠀⠋⠕⠇⠇⠪⠎⠒⠀⠀⠀⠀⠀⠀⠀
⠠⠛⠗⠁⠍⠑⠇⠕⠛⠊⠁⠀⠀⠕⠗⠂⠀⠀⠠⠮⠀⠠⠍⠁⠮⠍⠁⠞⠊⠉⠁⠇⠇⠀⠠⠗⠬⠲⠀⠀
⠠⠩⠑⠺⠬⠀⠶⠁⠝⠽⠀⠀⠀⠀⠀⠗⠑⠁⠎⠕⠝⠁⠃⠇⠑⠀⠠⠉⠁⠏⠁⠉⠊⠞⠽⠀⠞⠀
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⠠⠁⠗⠊⠹⠍⠑⠞⠊⠉⠅⠑⠲⠀⠀⠠⠯⠀⠘⠹⠀⠱⠊⠡⠀⠁⠗⠑⠀⠀⠀⠀⠀⠍⠕⠌⠀
⠙⠊⠋⠋⠊⠉⠥⠇⠞⠀⠾⠀⠛⠗⠑⠁⠞⠑⠌⠀⠀⠋⠁⠉⠊⠇⠊⠞⠊⠑⠒⠀⠠⠮⠀
⠑⠭⠞⠗⠁⠉⠞⠊⠕⠝⠀⠷⠀⠠⠗⠕⠕⠞⠎⠂⠀⠮⠀⠀⠀⠀⠀⠧⠁⠇⠥⠁⠞⠊⠕⠝⠀⠷⠀⠀
⠠⠇⠑⠁⠎⠑⠎⠂⠀⠉⠲⠀⠠⠮⠀⠍⠑⠁⠎⠥⠗⠬⠀⠷⠀⠠⠏⠇⠁⠔⠑⠎⠀⠀⠯⠀
⠠⠎⠕⠇⠊⠙⠎⠲⠀⠀⠠⠾⠀⠀⠀⠀⠀⠮⠀⠗⠑⠎⠕⠇⠥⠞⠊⠕⠝⠀⠷⠀⠠⠏⠇⠁⠔⠑⠀⠯

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.