Englische Wissenschaftswitze und lustige Mathematiksprüche+Bilder (English science jokes and funny math slogans+Images) | Person#1: The glass is half full. Person#2: #47

Person#1: "The glass is half full" —Person#2: "The glass is half empty" —Chemist: "It's always full, only in varying ratios of liquid and gas!"
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