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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.

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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.