This is how spectroscopy works – how you can tell what’s floating around in space even when you can’t see it, only light that passes *through* it. The Hubble Space Telescope is especially good at this. It’s got an imaging spectroscope on board.

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In the book Mysterium Comsmographicum, Johannes Kepler started mapping out how planets worked.

The idea here is that the solar system is structured according to the Platonic solids, one nesting in the other.

Later on, Kepler figured out how gravity worked and that the real geometry of planetary motion was a circle with two centers – an

Yes, technically not a theremin, but one of its children.

Bruno Perrault played the ondes Martenot and Matteo Ramon Arevalos played the piano, recorded on 21 February 2006.

Murail is a “spectral” composer – he creates melodies based on the shapes of the sounds as represented mathematically… or visualized on a spectrogram.

Martin Ulikhanyan composed this dreamy piece, which was recorded on 16 March 2013, conducted by Zaven Vardanyan. Ulikhanyan has a YouTube channel and a Soundcloud account.

Happy listening.

From the book Waterfowl in Iowa, by Jack W. Musgrove and Mary R. Musgrove, published by the Iowa State Conservation Commission.

I found this self-explanatory duck, marl to tail, on Scientific Illustration.

One of a series of videos in which white-gloved technicians from the Florence Fondazione Scienza e Tecnica (Science and Technics Foundation) operate antique scientific equipment, demonstrating how the devices reveal the secrets of nature.

Quietly. Reverently. Meditatively. Efficiently.

SONG: “Kiss the Earth” (To download: double right-click & “Save As”)

ARTIST: grant.

SOURCE: Based on

Thus do we master the physical world.

From Mechanical Engineering, a journal published by the American Society of Mechanical Engineers in 1919.

From Etsy. Scientific illustration has profound effects on some people. It surfaces in the unlikeliest places.

The same lingerie-maker has some rather comely pelvis print panties… for those who’d like to go deeper.