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History of scientific ideas ⠃⠗⠋ 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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1,196,226 braille cells · 1,258 embossed pages at 40×25 · 6,248 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.