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April 14 has been designated World Quantum Day in honour of Planck’s Constant which can be rounded to h~ 4.14×10−15 eV·s (and some folks write April 14 as 4/14*). Planck’s constant comes up a lot in quantum mechanics; for instance a photon’s energy is h times its frequency). So I thought I would share Feynman Bauhaus. 
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This linocut was inspired by the way the exuberant lines and shapes of Bauhaus paintings, like those of Wassily Kandinsky, reminded me Feynman diagrams showing particle reactions on the quantum scale, virtual particles and anti-particles popping out of the vacuum on borrowed mass-energy and of quantum foam. There’s a lot of information hidden in these whimsical little diagrams telling the story not only of possible subatomic reactions but, for those who know how to use them, 2/3
they allow easy calculations of probability and physical quantities.
*I am somewhat dubious of this date because a) I was trained to use the metric convention day/month/year and b) physicists use the reduced constant h-bar (that’s h divided by 2 pi) and then, cause it’s easier they just change units such that h-bar = 1 but it’s as good an excuse as any
https://minouette.etsy.com/listing/1143490034
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