randformblog on math, physics, art, and design |
today György Ligeti died.
an exceptional composer, pioneering micropolyphony, fluid in many languages, and unasked filmscore writer
some samples from his work can be found here (audio) and here (score). However, the sound examples can give only a faint idea of the experience a live performance of his work can be.
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This latin sentence (the sower Arepo holds the wheels with effort) is more than a palindrome (a sentence that can be read in both directions). In fact it can be read in all four directions of the square exposing even more symmetry. You can mirror it along its diagonals, but not all the symmetries of a square are present: a rotation by 90 degrees does not map the letters to themselves (pong).
assume the world was a simple one (more…)
a google mirror, that is a mirror image of googles page in some sense… (more…)