Playing brass instruments emits more aerosols than woodwinds, and bell covers help reduce emissions nature.com Submitted by cuicocha t3_zdipzs on December 5, 2022 at 8:33 PM in science 25 comments 57
Representative_Still t1_iz2ouv5 wrote on December 6, 2022 at 12:47 AM The spit valves should’ve been the first clue Permalink 1
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