art
Sine Wave A 440 Hz Concert Pitch for Ten Hours
Stop your brain from overthinking. You don't need an app. Ten hour Sine wave with no overtones which is called pure as it is only the fundamental frequency.
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Japanese artist Yayoi Kusama is known for her repetitive polka dots and peep-show-like chamber rooms that create the illusion of infinite space. Six of her Infinity Mirror Rooms, part of a retrospective of her 65-year career, are on exhibit at the Hirshhorn Museum in Washington, D.C., February 2017.