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 · 1,467 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.