Library / Mathematics / Philosophiae Naturalis Principia Mathematica / Braille
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.
Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt
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.