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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.