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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.