“On Mondays, Wednesdays, and Fridays we use the wave theory; on Tuesdays, Thursdays, and Saturdays we think in streams of flying energy quanta or corpuscles.”

— William Henry Bragg

in Electrons & Ether Waves : being the twenty-third Robert Boyle lecture, on 11th May 1921, Oxford University Press, 1921, p. 11.

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William Henry Bragg 1

British scientist 1862–1942

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“"I texted you on a Monday,
But you did not get my text 'till the Tuesday,
Because of a network problem.
I texted you on a Wednesday,
But I did not know that you'd called
Because your SIM card was not correctly installed.
Oh no no no.
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And you said Dixons
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