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A cymatics photograph by <n>Robert Buelteman</n>, used as cover art for the single <n>Paradigm</n> by <n>Rhadow</n>.

<n>Oscillon #39</n> and <n>Oscillon #11</n>, <n>Electronic Abstractions</n> by artist <n>Ben F. Laposky</n>, c. 1950.

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<n>Analog-Grafik D3 (Dance of the Electrons)</n> by <n>Herbert W. Franke</n>, 1962.

Plate XXVII from <n>Thomas Wright</n>'s 1750 book, <n>An Original Theory or New Hypothesis of the Universe</n>.

<n>EEG traces</n> of <n>Alpha brain waves</n> from June 1970, showing the effect of <n>photic stimulation</n>.

<n>Luzes Relacionais</n> by artist <n>Ernesto Klar</n>.

An illustration by <n>Rudolf Freund</n> from the 1962 book <n>The Universe</n>.

Album art for <n>Krononaut II</n> by <n>Krononaut</n>, with a chronophotograph by <n>Étienne-Jules Marey</n>.

<n>Thomas Young</n>'s 1807 illustration of the double-slit experiment.

Vibrations of a circular plate from the book <n>Schwingungen</n> by <n>W. Schiehlen</n> and <n>P. Eberhard</n>.

An 1868 optics illustration by <n>J. Silbermann</n>, engraved by <n>René Henri Digeon</n> for <n>Amédée Guillemin</n>'s textbook *Les Phénomènes de la physique*.