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Library / Engineering & Technology / Optical Projection. Part 1: The Projection of Lantern Slides / Braille

Optical Projection. Part 1: The Projection of Lantern Slides ⠃⠗⠋ 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

146,908 braille cells · 155 embossed pages at 40×25 · 487 unrepresentable characters omitted

⠓⠕⠺⠑⠧⠑⠗⠂⠀⠊⠎⠀⠇⠊⠍⠊⠞⠑⠙⠀⠃⠽⠀⠞⠓⠑⠀⠎⠊⠵⠑⠀⠕⠋⠀⠞⠓⠑⠀
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⠊⠎⠀⠁⠥⠞⠕⠍⠁⠞⠊⠉⠁⠇⠇⠽⠀⠎⠁⠋⠑⠛⠥⠁⠗⠙⠑⠙⠀⠶⠕⠗⠀⠎⠓⠕⠥⠇⠙⠀
⠃⠑⠶⠀⠃⠽⠀⠞⠓⠑⠀⠋⠥⠎⠑⠎⠂⠀⠺⠓⠊⠉⠓⠀⠉⠕⠝⠎⠊⠎⠞⠂⠀⠁⠎⠀⠊⠎⠀
⠛⠑⠝⠑⠗⠁⠇⠇⠽⠀⠅⠝⠕⠺⠝⠂⠀⠕⠋⠀⠞⠓⠊⠝⠀⠺⠊⠗⠑⠎⠀⠕⠗⠀⠎⠞⠗⠊⠏⠎
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⠇⠊⠛⠓⠞⠊⠝⠛⠀⠺⠑⠀⠥⠎⠑⠀⠞⠓⠑⠗⠑⠋⠕⠗⠑⠂⠀⠑⠝⠕⠥⠛⠓⠀
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⠉⠊⠗⠉⠥⠊⠞⠀⠞⠕⠀⠑⠝⠎⠥⠗⠑⠀⠼⠙⠁⠀⠞⠓⠁⠞⠀⠝⠕⠀⠍⠕⠗⠑⠀
⠉⠥⠗⠗⠑⠝⠞⠀⠉⠁⠝⠀⠏⠁⠎⠎⠀⠞⠓⠁⠝⠀⠓⠁⠎⠀⠃⠑⠑⠝⠀⠏⠗⠕⠧⠊⠙⠑⠙⠀
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⠀⠥⠎⠥⠁⠇⠇⠽⠀⠍⠑⠁⠝⠎⠀⠁⠀⠗⠑⠎⠊⠎⠞⠁⠝⠉⠑⠀⠕⠗⠀⠗⠓⠑⠕⠎⠞⠁⠞⠀
⠃⠑⠊⠝⠛⠀⠗⠑⠞⠁⠊⠝⠑⠙⠀⠊⠝⠀⠞⠓⠑⠀⠉⠊⠗⠉⠥⠊⠞⠀⠊⠝⠀
⠁⠙⠙⠊⠞⠊⠕⠝⠀⠞⠕⠀⠞⠓⠑⠀⠁⠗⠉⠀⠊⠞⠎⠑⠇⠋⠂⠀⠞⠓⠗⠕⠥⠛⠓⠀
⠺⠓⠊⠉⠓⠀⠞⠓⠑⠀⠉⠥⠗⠗⠑⠝⠞⠀⠊⠎⠀⠏⠁⠎⠎⠑⠙⠀⠁⠝⠙⠀
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⠋⠕⠗⠀⠗⠑⠁⠎⠕⠝⠎⠀⠞⠕⠀⠃⠑⠀⠙⠊⠎⠉⠥⠎⠎⠑⠙⠀⠇⠁⠞⠑⠗⠀⠎⠥⠉⠓⠀⠁
⠀⠗⠑⠎⠊⠎⠞⠁⠝⠉⠑⠀⠊⠎⠀⠝⠑⠉⠑⠎⠎⠁⠗⠽⠀⠺⠊⠞⠓⠀⠁⠝⠀⠕⠏⠞⠊⠉⠁⠇
⠀⠇⠁⠝⠞⠑⠗⠝⠀⠁⠗⠉⠀⠇⠁⠍⠏⠀⠊⠝⠀⠁⠝⠽⠀⠉⠁⠎⠑⠲⠀⠀⠠⠊⠝⠀⠞⠓⠑⠀
⠉⠁⠎⠑⠀⠕⠋⠀⠁⠀⠛⠇⠕⠺⠤⠇⠁⠍⠏⠂⠀⠞⠓⠑⠀⠑⠝⠞⠊⠗⠑⠀
⠗⠑⠎⠊⠎⠞⠁⠝⠉⠑⠀⠊⠎⠀⠏⠗⠕⠧⠊⠙⠑⠙⠀⠃⠽⠀⠞⠓⠑⠀⠋⠊⠇⠁⠍⠑⠝⠞⠀

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.