Library / Physics / Spectropia; or, Surprising Spectral Illusions / Braille
Spectropia; or, Surprising Spectral Illusions ⠃⠗⠋ 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
16,854 braille cells · 18 embossed pages at 40×25 · 212 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.