Skip to content

Library / Engineering & Technology / Refraction and muscular imbalance, as simplified through the use of the ski-optometer / Braille

Refraction and muscular imbalance, as simplified through the use of the ski-optometer ⠃⠗⠋ 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.

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

132,413 braille cells · 137 embossed pages at 40×25 · 1,137 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.