it’s a pretty interesting science experiment. it was the temperature of a mix of water, ice and ammonium chloride, which forms a eutectic mixture that stabilises itself at the temperature that fahrenheit chose as zero.
Yeah, 0F° is close to leave-a-faucet-dripping-lest-your-pipes-freeze weather. Quite a ways below the freezing temperature of water at standard atmospheric pressure.
What even is zero Fahrenheit? Isn’t it some random point above freezing that is cold but not that cold?
it’s a pretty interesting science experiment. it was the temperature of a mix of water, ice and ammonium chloride, which forms a eutectic mixture that stabilises itself at the temperature that fahrenheit chose as zero.
…he didn’t write down the amounts he used though.
The freezing point of a saturated brine of ammonium chloride.
Zero Fahrenheit is like -18 C.
Yeah, 0F° is close to leave-a-faucet-dripping-lest-your-pipes-freeze weather. Quite a ways below the freezing temperature of water at standard atmospheric pressure.