Instructions for cooking in a normal oven tell you how long and how hot. But microwaves rely on unscaled buttons for “power” that vary from machine to machine. Why isn’t there a standard unit of cooking energy for microwaves so instructions could say “Cook in your microwave for ten minutes at 350 joules” (or ohms, watts, newtons, pounds per square inch, parsecs, francs, or whatever the right unit of measurement is…I’m a humanities major, dammit!)? [Tags: doep puzzles]

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