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Six Lectures on Light ⠃⠗⠋ 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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331,034 braille cells · 348 embossed pages at 40×25 · 464 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.