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/sci/ - Science & Math

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12466675 No.12466675 [Reply] [Original]

Why is the freezing point of water 32 degrees?

>> No.12466680

>>12466675
It's not, it's 0 degrees.

>> No.12466690

>>12466680
Close, it's actually 273.15

>> No.12466697
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12466697

>>12466690
Kelvin aren't referred to as "degrees"

>> No.12466702

>>12466680
Why is it that then?

>> No.12466704

>>12466702
that's how Celsius was originally defined. 0 for freezing, 100 for boiling.

>> No.12466712

>>12466675
Fahrenheit proposed his temperature scale in 1724, basing it on two reference points of temperature. In his initial scale (which is not the final Fahrenheit scale), the zero point was determined by placing the thermometer in "a mixture of ice, water, and salis Armoniaci[13] [transl. ammonium chloride] or even sea salt".[14] This combination forms a eutectic system which stabilizes its temperature automatically: 0 °F was defined to be that stable temperature. A second point, 96 degrees, was approximately the human body's temperature (sanguine hominis sani, the blood of a healthy man).[14] A third point, 32 degrees, was marked as being the temperature of ice and water "without the aforementioned salts".[14]

According to a German story, Fahrenheit actually chose the lowest air temperature measured in his hometown Danzig (Gdańsk, Poland) in winter 1708/09 as 0 °F, and only later had the need to be able to make this value reproducible using brine.[15]

According to a letter Fahrenheit wrote to his friend Herman Boerhaave,[16] his scale was built on the work of Ole Rømer, whom he had met earlier. In Rømer's scale, brine freezes at zero, water freezes and melts at 7.5 degrees, body temperature is 22.5, and water boils at 60 degrees. Fahrenheit multiplied each value by four in order to eliminate fractions and make the scale more fine-grained. He then re-calibrated his scale using the melting point of ice and normal human body temperature (which were at 30 and 90 degrees); he adjusted the scale so that the melting point of ice would be 32 degrees and body temperature 96 degrees, so that 64 intervals would separate the two, allowing him to mark degree lines on his instruments by simply bisecting the interval six times (since 64 is 2 to the sixth power).[17][18]

>> No.12466714

u get get it much lower than that if it has no charge

>> No.12466717

>>12466712
this is /sci/, sir. We us the SI here. For US customary units, please visit
>>>/lgbt/

>> No.12466723

>>12466717
>uses Joules instead of electron volts (eV)
undergrad detected

>> No.12466726

>>12466697
Illiterate moron. That anon never said "degrees."

>> No.12466728
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12466728

>>12466723
>why yes, I use eV/s instead of horsepower, how did you know?

>> No.12466741

>>12466675
Because I got $5.45 and it's 5:45

>> No.12466746
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12466746

>>12466728
please convert 200hp to planck energies per planck time, otherwise theorists will never know what a Miata engine feels like

>> No.12466757

>>12466741
gonna get a whopper and a 40 and ride

>> No.12466760
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12466760

>>12466746
Ok, but how many foot-pounds is that?

>> No.12466763

>>12466760
i only know the conversion to farthing-stones, sorry

>> No.12467101

>>12466726
he didn't say kelvins neither

>> No.12467108

>>12466675
Was that queeblo??

>> No.12467861

>>12467101
And you can't english either.

>> No.12468821

>>12466757
its 40 rye, dumbass.. as in malt liquor. whopper and a 40 rye. that's his dinner.

>> No.12468905

>>12466726
But OP explicitly asked about degrees.

>> No.12468923

>>12466763
>farthing-stones
>not cubit-talents
wtf is this lib bullshit

>> No.12468990

>>12468821
Rye isn't used in malt liquor dumbass, you're thinking of barley. He's getting a whopper, a 40, and riding his skateboard. Did you think it was a coincidence that every time he sings the chorus he's riding his skateboard?

>> No.12469034

>>12468923
I can translate to tonnes for you

>> No.12469129
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12469129

>>12467861
>And you can't english either.

>> No.12469157

>>12466712
>he adjusted the scale so that the melting point of ice would be 32 degrees and body temperature 96 degrees, so that 64 intervals would separate the two, allowing him to mark degree lines on his instruments by simply bisecting the interval six times (since 64 is 2 to the sixth power)
based and imperial pilled

>> No.12469256

>>12469129
Learn syntax, you mongoloid.

>> No.12469257

>>12466675
It's not, it's zero. You need to drop some pressure.

>> No.12469291

>>12469257
We're talking civilized units here. Metricfags can do a flip