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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.