Aeolian (wind) harps with heart and soul. Distinctive sounding wind harps created by solid wood soundboards and wooden resonating boxes. Two foot window mode.

Durer drawing of a non-regular pentagon, a trigonometry exercise: angle smaller than 108º, zooming we can see the small error | matematicasVisuales

Durer drawing of a non-regular pentagon, a trigonometry exercise: angle smaller than zooming we can see the small error

Small-angle approximation - Wikipedia, the free encyclopedia

Small-angle approximation - Wikipedia, the free encyclopedia

Mastering Olympiad Mathematics: Small Angle Approximation in Trigonometry

Mastering Olympiad Mathematics: Small Angle Approximation in Trigonometry

Space Distances- How to calculate the Astronomical Unit using Parallax and Small Angle Approximation.

Using a transit of Venus to determine the Astronomical Unit: a simple example

The Musical Spiral

Sacred Geometry: The Musical Spiral of Frequency, Color, and Light (Universal Tuning 432 Hz)

Notation for a toothed cylinder. The cylindrus dentatus — or toothed cylinder — was a 17th-century precursor to tonotechny. The cylinders were designed to rotate at constant speed while its teeth triggered the playing of notes on an organ. This recording educed by Feaster is based on notation crafted by 17th-century Jesuit scholar Athanasius Kircher for a song composed by Simplicio Todeschi that was published in 1627.

7 Sound Recordings Made Before Thomas Edison

Notation for a toothed cylinder. The cylindrus dentatus — or toothed cylinder — was a 17th-century precursor to tonotechny. The cylinders were designed to rotate at constant speed while its teeth triggered the playing of notes on an organ. This recording educed by Feaster is based on notation crafted by 17th-century Jesuit scholar Athanasius Kircher for a song composed by Simplicio Todeschi that was published in 1627.

YouTube

"The Wing" Sound Sculpture Solo - Marilyn Donadt Percussion

Harun Farocki - Ausdruck der Hände  (Expression of the Hands) - YouTube

Harun Farocki - Ausdruck der Hände (Expression of the Hands)

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