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.
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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.