Library / Mathematics / Philosophiae Naturalis Principia Mathematica / Braille
Philosophiae Naturalis Principia Mathematica ⠃⠗⠋ braille edition
Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.
Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt
845,307 braille cells · 904 embossed pages at 40×25 · 18,948 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.