Those aren’t supposed to be round on top.

  • lemmyng
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    21 hours ago

    No, the human perception of temperature thing is a myth. Originally 0F is the freezing temperature of a brine solution, and 90F was Fahrenheit’s estimation on the average human body temperature, and then the scale was adjusted so that it fit in better with Celsius reference points (freezing/boiling points of water).

    Reference: https://en.wikipedia.org/wiki/Fahrenheit