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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.