Library / Physics / Opticks / Braille
Opticks ⠃⠗⠋ 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
482,147 braille cells · 505 embossed pages at 40×25 · 3,223 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.