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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.