The world is full of things to measure, and scales for reporting those measurements. Some are more rational than others, some are more human-oriented than others, and some are older than others, but none of them involve thermometers that sometimes rise and sometimes don’t. This puzzle does, though!
Rules:
Normal Sudoku rules apply.
Digits on thermometers either increase or remain the same from bulb to tip. Coloring is cosmetic.
Estimated difficulty: 1 out of 5
Solve on SudokuPad