User sphennings - Writing Stack Exchange

sphennings

753

reputation

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Allston, Boston, MA, United States
Member since October 17 2017
15 profile views
Last seen Dec 13 '23 at 17:22

universe -G 6.672e-11 -e 1.602e-19 -h 6.626e-34 -protonmass 1.673e-27....