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Philosophiae Naturalis Principia Mathematica ⠃⠗⠋ 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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807,608 braille cells · 860 embossed pages at 40×25 · 16,788 unrepresentable characters omitted

⠏⠥⠝⠉⠞⠊⠎⠀⠀⠞⠁⠝⠛⠢⠞⠊⠃⠥⠎⠀⠥⠝⠁⠀⠉⠥⠍⠀⠉⠢⠞⠗⠕⠂⠀
⠙⠁⠝⠞⠥⠗⠀⠀⠁⠇⠊⠁⠀⠞⠕⠞⠊⠙⠑⠍⠀⠏⠥⠝⠉⠞⠁⠀⠁⠇⠊⠟⠆⠀
⠞⠁⠝⠛⠢⠞⠑⠎⠀⠁⠀⠉⠢⠞⠗⠕⠀⠑⠭⠀⠁⠇⠞⠻⠁⠀⠑⠚⠥⠎⠀⠏⠜⠞⠑⠀⠀
⠟⠥⠁⠇⠊⠞⠻⠀⠙⠊⠌⠁⠝⠞⠑⠎⠲⠀⠠⠁⠎⠽⠍⠏⠞⠕⠞⠕⠎⠀⠁⠥⠞⠑⠍⠀⠏⠗⠕⠀
⠞⠁⠝⠛⠢⠞⠑⠀⠓⠁⠃⠢⠙⠁⠀⠑⠌⠂⠀⠀⠑⠚⠥⠎⠀⠀⠞⠻⠍⠔⠥⠎⠀⠊⠝⠋⠔⠊⠞⠑
⠀⠙⠊⠌⠁⠝⠎⠀⠶⠎⠊⠀⠊⠞⠁⠀⠇⠕⠟⠥⠊⠀⠋⠁⠎⠀⠎⠊⠞⠶⠀⠏⠗⠕⠀
⠏⠥⠝⠉⠞⠕⠀⠉⠕⠝⠞⠁⠉⠞⠥⠎⠲⠀⠀⠠⠉⠕⠝⠉⠊⠏⠑⠀⠞⠁⠝⠛⠢⠞⠊⠎⠀
⠉⠥⠚⠥⠎⠧⠊⠎⠀⠏⠥⠝⠉⠞⠥⠍⠀⠉⠕⠝⠞⠁⠉⠞⠥⠎⠀⠁⠃⠊⠗⠑⠀⠔⠀
⠊⠝⠋⠔⠊⠞⠥⠍⠂⠀⠀⠞⠁⠝⠛⠢⠎⠀⠀⠧⠻⠞⠑⠞⠥⠗⠀⠔⠀
⠠⠁⠎⠽⠍⠏⠞⠕⠞⠕⠝⠂⠀⠁⠞⠟⠆⠀⠉⠕⠝⠌⠗⠥⠉⠞⠊⠕⠝⠑⠎⠀
⠠⠏⠗⠕⠃⠇⠑⠍⠁⠞⠊⠎⠀⠠⠠⠭⠧⠀⠀⠠⠉⠁⠎⠥⠎⠀⠏⠗⠊⠍⠊⠀⠀
⠠⠏⠗⠕⠃⠇⠑⠍⠁⠞⠊⠎⠀⠠⠠⠭⠊⠧⠀⠧⠻⠞⠢⠞⠥⠗⠀⠔⠀
⠉⠕⠝⠌⠗⠥⠉⠞⠊⠕⠝⠑⠎⠀⠠⠏⠗⠕⠃⠇⠑⠍⠁⠞⠥⠍⠀⠥⠃⠊⠀
⠠⠁⠎⠽⠍⠏⠞⠕⠞⠊⠀⠀⠙⠁⠝⠞⠥⠗⠲⠀⠀⠀⠀⠠⠊⠇⠇⠥⠌⠗⠁⠞⠊⠕⠝⠀⠀⠀⠀
⠠⠏⠕⠌⠟⠥⠁⠍⠀⠠⠞⠗⠁⠚⠑⠉⠞⠕⠗⠊⠁⠀⠙⠑⠎⠉⠗⠊⠏⠞⠁⠀⠑⠌⠂⠀
⠊⠝⠧⠢⠊⠗⠑⠀⠇⠊⠉⠑⠞⠀⠁⠭⠑⠎⠀⠀⠥⠍⠃⠊⠇⠊⠉⠕⠎⠀⠑⠚⠥⠎⠀⠀⠓⠁⠉⠀
⠍⠑⠹⠕⠙⠕⠲⠀⠠⠔⠀⠉⠕⠝⠌⠗⠥⠉⠞⠊⠕⠝⠑⠀⠀⠠⠋⠊⠛⠥⠗⠁⠀
⠠⠇⠑⠍⠍⠁⠞⠊⠎⠀⠠⠠⠭⠭⠊⠂⠀⠋⠁⠉⠀⠥⠞⠀⠁⠝⠛⠥⠇⠕⠗⠥⠍⠀⠀
⠍⠕⠃⠊⠇⠊⠥⠍⠀⠠⠠⠏⠃⠝⠂⠀⠠⠠⠏⠉⠝⠀⠉⠗⠥⠗⠁⠀⠠⠠⠃⠏⠂⠀⠠⠠⠉⠏⠀
⠟⠥⠕⠗⠥⠍⠀⠉⠕⠝⠉⠥⠗⠎⠥⠀⠠⠞⠗⠁⠚⠑⠉⠞⠕⠗⠊⠁⠀
⠙⠑⠎⠉⠗⠊⠃⠑⠃⠁⠞⠥⠗⠀⠀⠎⠔⠞⠀⠎⠊⠃⠊⠀⠊⠝⠧⠊⠉⠑⠍⠀
⠏⠜⠁⠇⠇⠑⠇⠁⠂⠀⠑⠥⠍⠟⠆⠀⠎⠻⠧⠁⠝⠞⠊⠁⠀⠎⠊⠞⠥⠍⠀
⠗⠑⠧⠕⠇⠧⠁⠝⠞⠥⠗⠀⠉⠊⠗⠉⠁⠀⠏⠕⠇⠕⠎⠀⠀⠎⠥⠕⠎⠀⠠⠃⠂⠀⠠⠉⠀⠔⠀
⠋⠊⠛⠥⠗⠁⠀⠊⠇⠇⠁⠲⠀⠠⠊⠝⠞⠻⠑⠁⠀⠧⠻⠕⠀⠙⠑⠎⠉⠗⠊⠃⠁⠝⠞⠀
⠁⠇⠞⠻⠁⠀⠁⠝⠛⠥⠇⠕⠗⠥⠍⠀⠊⠇⠇⠕⠗⠥⠍⠀⠀⠉⠗⠥⠗⠁⠀⠠⠠⠉⠝⠂⠀

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.