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Popular scientific lectures ⠃⠗⠋ braille edition

Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.

Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt

672,558 braille cells · 715 embossed pages at 40×25 · 1,972 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.