February Links Post

Things strangers have done

  • Created a polygonal sine wave generator, which allows you to play sine and cosine waves generated from regular polygons which aren’t circles. Entertaining to mess around with, and allows you to change the frequency of the waveform to suit your hearing as well. Discoveries with A (440Hz) include that while increasing the number of the source polygon’s sides until it most closely resembles a traditional sine wave produces a smoother-sounding note, reducing the number of sides until the waveform resembles a flamboyant triangle drawn with a calligraphy brush creates something which is both harsh and musical at the same time. Fantastically good fun. 
  • The British Library remind everyone that their Medieval and earlier manuscripts are in the public domain and the digitised catalogue is available for use: good news for scholars, the interested, or people like me who are having a bit of a belated spike of appreciation for the times prior to the fall of Constantinople.
  • The Kerala State Library too have a large digitised collection online in English and Malayalam. Some of the books are very rare, and there are over a thousand titles available.

People have done other things, but I haven’t been paying attention.

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