100F was originally set to roughly human body temperature. 0 was the freezing point of a brine mixture (water, salt, and ammonium) meant to be similar to sea water. It was used because the temperature would self-stabilize at a particular temperature, which was defined as 0 degrees.
That’s why its “humanistic,” the scale roughly includes the temperature range we can survive in, and provides decent granularity within that range. Metric based everything on pure water, which is pretty arbitrary also, as evidenced by both scales being redefined as more precise and repeatable means of defining measured units have become available.
100F was originally set to roughly human body temperature. 0 was the freezing point of a brine mixture (water, salt, and ammonium) meant to be similar to sea water. It was used because the temperature would self-stabilize at a particular temperature, which was defined as 0 degrees.
That’s why its “humanistic,” the scale roughly includes the temperature range we can survive in, and provides decent granularity within that range. Metric based everything on pure water, which is pretty arbitrary also, as evidenced by both scales being redefined as more precise and repeatable means of defining measured units have become available.
Ah yes the salt and ammonia brine, how human.
You’re one of today’s lucky 10,000, and yours is the eutectic system. Read my other comment if you don’t feel like looking into it.