87 points

The only good thing about Fahrenheit is that 69 degrees (20.5 C) is a nice temperature.

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12 points

a 69°C cup coffee on winter is nice

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8 points
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A cup of lukewarm coffee please.

Edit: my wrong, I thought it was 69°F !

All my excuses

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6 points

According to James Hoffmann, the ideal temperature to enjoy coffee is between 50°C and 60°C, he may know a thing or two about coffee, and you may think the coffee you drink is hotter that it really is.

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62 points

And you can bake things at 420

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26 points

You could bake something at 420 Celsius too, assuming your okay with charcoal as the end product

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16 points

Or Pizza!

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7 points

you can also bake things at 420C if you’re not a coward about this (like proper thin pizza) (maybe it’s a bit too high but you get the idea)

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1 point

Well… If it’s only for a few seconds…

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9 points

ok you actually convinced me, Fahrenheit is better (except I can’t spell it properly without autocorrect)

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5 points

I can’t spell it properly without autocorrect

This is genuinely the most inconvenient thing about Fahrenheit

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1 point

You can make the temperature dial of an oven have matching degrees of rotation and degrees Celcius.

Turn the dial to point straight down to bake at 180°

Turn it 3/4 of the way to cook a pizza at 270°

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3 points

Also it’s a 0-100 scale of how hot it is outside, and it requires no prior understanding to use it as such.

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6 points

The freezing point of water is very important to weather, and requires prior knowledge of the arbitrary number 32.

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-3 points

Okay so fahrenheit has a well-defined high and low, but an arbitrary freezing point of one certain chemical. All other chemical freezing points are arbitrary.

Celsius has an arbitrary high and low, but a well-defined freezing point of that same chemical. All other freezing points are arbitrary.

If your motivation is to minimize the amount of arbitrary values you have to memorize, fahrenheit is the clear winner.

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1 point
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Is it? Only pure water will actually freeze at 0c. Rain, puddles, lakes, etc aren’t all that pure… And we’re talking about ambient air temps here. The air can be below freezing and it can still rain. And you can get snow/hail above freezing…

Knowing the freezing point is just one factor. Knowing it’s generally around 30F is pretty much always close enough (not that remembering 32 is actually very difficult)

Edit: also water only freezes at 0c if it’s at sea level… I really don’t think 0°=freezing is the huge advantage that celcius stans think it is.

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0 points

yeah, and let me know how accurate our weather models and prediction systems are. Can you calculate accurately how much the temperature in a specific part of the atmosphere will drop to a large updraft?

What’s that? This is literally an entire career field of study and development? Oh that’s weird.

Also the only real time this is relevant, is when things that have this weird property called thermal mass get below freezing, it’s snowing in 30f weather? That’s not sticking, the ground is too warm. or the sun will literally just melt it even if it is cold enough. Water? You mean that weird thing called like, a lake or river? Those get below freezing, without actively freezing, lakes won’t even drop that much in terms of temperature, aside from the surface level. The surface may freeze, but even that is pretty variable.

Also yes, it’s the arbitrary number of 32, so is literally every number though. We have 2 numbers to remember, you also have 2 numbers to remember, god forbid you have like, a password, or a passcode, or like, a numbers based lock somewhere. Humans have never been known to be good at memorizing short strings of data.

like idk how to tell you this, but, it’s not that big of a deal?

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5 points

If that was true outsiders should be able to use Fahrenheit without much explanation. I’ve never got a clue what the °F values mean, I always have to use a converter. It’s really not as intuitive as people who grew up with it seem to believe.

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0 points

If that was true outsiders should be able to use Fahrenheit without much explanation. I’ve never got a clue what the °F values mean, I always have to use a converter. It’s really not as intuitive as people who grew up with it seem to believe.

because it’s all relative, and you need to actually know how the temperatures relate to the things you’re experiencing? I’m going to hazard a guess and say you’re comfortable with using celsius? Oops cognitive bias. You would have to test this on someone who doesn’t understand temperature yet. It just so happens that here in the US, it pretty conveniently lines up with those figures for us.

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4 points

Exactly. Fahrenheit is just metric weather.

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173 points

By that metric, kelvin would be even better though.

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69 points

You miss out on screaming that it’s negative anything though.

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28 points

-40F = -40C

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4 points

Kelvin doesn’t have a negative.

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16 points

The best system would have 0 at a mild, comfortable temperature, and go up or down by 100 degrees per one degrees Fahrenheit.

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14 points
*

But mild and comfortable is different for different people who are acclimated to different weather.

We need a defined ‘mild’ temperature. i vote for 70F/21C.
It’s a bit chilly for the warm weathered folks and a bit warm for the cold weathered folks. Seems reasonable but I’m open to suggestions.

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7 points

0 for freezing because water falls from the fucking sky.

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12 points

You can absolutely yell about that. And when Fahrenheit flips to negative, you’re ready to express some big feelings about how fucking cold it is.

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17 points
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You mean it’s THREE HUNDRED AND FOURTEEN FUCKING DEGREES OUTSIDE?!

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20 points

And Rankine would be even better than Kelvin in terms of “big number go brrr.” Water boils at 671 R.

Of course, Rankine is the most obnoxious unit I’ve ever had to deal with, but those numbers sure are big!

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154 points

by that metric

Americans cannot understand any metric

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76 points

2 liter bottle.

Checkmate, athiests.

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24 points

Also we have electric, water and gas meters smh

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54 points

9mm

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25 points

We’re more familiar with 5.56x45mm thanks to all our school shootings thank you very much.

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11 points

28 grams to an ounce

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4 points

In point of fact Americans have gotten impressive results out of far more complicated metrics than metric. It’s not a matter of understanding, it’s a matter of pride. And of not having to buy all new tools.

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4 points

OK, but with Rankine, if it’s 101 out, you can go Five Hundred and SIXTY degrees??!

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-1 points

“Kelvin” sounds a lot like “communism” you pinko

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2 points

Please raise this temperature by 1.4x10^-23 Joules - statements of the utterly deranged

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2 points

Joules are energy. You need thermal capacity to turn them into temperature.

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25 points

Fahrenheit is better because 69 is a nice temperature

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31 points

Celsius is better because 69 is very hot

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6 points

Yes but we all know you will never experience that 69 (and I think you know it too)

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5 points

You do experience 69°C if you go to sauna before it’s warm

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12 points

What? Never been in a sauna? Do it, it’s really nice!

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5 points

Meh… Give it another couple of decades.

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-6 points

Fahrenheit is best for ambient temperatures. 0 F is what humans feel is a very cold day, and 100 F is what humans feel is a very hot day.

Celsius is best for literally everything else, but for humans feeling of ambient temperature Fahrenheit is best

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44 points

only if you grow up with fahrenheit.

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2 points

So you’re saying that 0 and 100 aren’t intuitively obvious? I find that really strange when it’s doing a better job keeping to base 10 than the metric system in this particular use case.

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9 points

For Celsius, 0 is freezing cold and 100 is boiling hot - that’s intuitive too.

I have literally never felt 0°F in my life and couldn’t tell you how cold it is, just that it’s very cold. I believe everyone has a rough understanding how 0°C and 100°C feel though.

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11 points

When it comes to a single number on a scale, whatever you grew up with will be more “obvious”. 100F doesn’t give me any more information than 38C does. The whole “base 10” thing only matters if you are actually doing some math to that number.

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12 points
*

the numbers may be, but if you asked me to tell you what they feel like i would have to convert them to celsius first. where i live temperatures are generally between -30 and +30, and i could tell you in an instant what I would wear for a given temperature in that range. 50F though? no clue. since it’s right between 0 and 100 i guess it would be just right, temperature wise, so t-shirt and long pants?

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4 points
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No, they’re not. I couldn’t tell what those numbers mean even if you asked, but I can tell what 0°C outside feels, and what 100°C sauna feels. I can also tell that 21°C is a nice ambient temperature for chilling, and 15-20°C is ideal for most outdoor sports.

Yeah sure those are not necessarily nice round numbers, but I’ve used the scale all my life so it’s intuitive to me, same as the Fahrentrash is intuitive to you

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1 point

They aren’t. And fahrenheit is not a 0-100 scale. It is just the scale you picked out of it in order to make some kind of sense out of the non-intuitive system which it is.

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3 points
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100F was defined as the human body temperature (The guy they used had a cold or something so it’s off by a degree and a half.)

That’s useful for perception of heat. When the dry bulb gets above 100F, wind only cools you down by sweat evaporation, and when the wet bulb gets above 100F, even that can’t cool you down, and you will die if you don’t get to a cooler or drier environment.

This is more intuitive than 36.5C.

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7 points
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what Fahrenheit used for his endpoints was 1) the melting point of a brine mixture that he didn’t write down the ratio of, and 2) his wife’s armpit.

those “bulb” things is something i only ever hear of from americans. it’s never used here.

and I fail to see how two numbers are somehow differently intuitive. they are just numbers. also, 36.5 is too low. it’s pretty much 37.0 now, because average body temp has interestingly enough shifted since he took those measurements.

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1 point

What’s a dry/wet bulb?

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-7 points

Um. No.

If I said a movie was a 7/10, you would understand what that means because it’s a scale. You don’t have to “grow up” using a 0-10 scale to understand it.

Like if I asked you to rate something on a scale of 4-17, you’d understand what I mean. The numbers are different but the concept of a scale remains the same.

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-1 points
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Deleted by creator
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4 points
*

Really not. Basically, you just need to peg feelings to a number, just like you are doing.

Celsius:
below -20 = deadly even with good gear, you can’t spend long here
-15 = very dangerous / deadly
-10 = starting to get dangerous
-5 = starting to get uncomfortable
0 = very cold
5 = cold
10 = a little cold
15 = cool
20 = nice
25 = warm
30 = hot
35 = starting to get uncomfortable
40 = starting to get dangerous
45 = very dangerous / deadly
50+ = deadly even with good gear, you can’t spend long here

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8 points

if I knew that you are a european and you told me a movie was 5/10, i would assume it was average. if i knew you were American, i would assume it was dogshit.

Americans have a weird relationship with numbers.

also, as mentioned in another post: if 0 is too cold and 100 is too hot, surely 50 would be a pleasant temperature?

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-1 points

fahrenheit doesn’t exist if you use celsius i guess??

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1 point

It doesn’t, because celsius users doesn’t think about fahrenheit at all.

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-3 points
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But really it is much better for human temperatures.

It’s just intuitive, 0F is 100% cold, and 100F is 100% hot.

When the dry bulb gets above 100F, wind only cools you down by sweat evaporation, and when the wet bulb gets above 100F, even that can’t cool you down, and you will die if you don’t get to a cooler or drier environment.

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7 points

I love it when it’s -10% hot in winter nights or 110% hot around the equator. Makes perfect sense.

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-1 points

Yes, it does a better job of impressing that is all of the hot (or cold), and then 10% more than the difference between 38 and 43

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6 points

Any of the systems is better if you have an intuitive understanding of it. I don’t know what 107 F would feel like, just as you don’t know what 42°C feels like. But it’s not a thing where one is inherently better than the other…

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0 points
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Yes, it does, actually, if you understand how thermal energy works.

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28 points

“Intuitive” is a meaningless metric for a single scaled number. Whichever system you are used to will be the more “intuitive”.

Also, climate can play into which system feels more useful. Where I live, 100F occurs only rarely (and since air conditioning is almost ubiquitous, not something I’d bother looking out for), while 0C is an outdoor temperature that I do need to be aware of for half the year.

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-4 points

I disagree that either would be just as intuitive. Fahrenheit being 0=cold and 100=hot is intuitive because there are a lot of things we do in the world that exist on a scale of 0 - 100. Percentages, just off the bat. Also, fahrenheit has a higher degree of fidelity in the temperature range that we use.

Celsius’s general temperature scale is like -10 - 40 which is absolutely not intuitive because it doesn’t look like any other scale we use as humans. I agree that we get used to Celsius fast and it’s a fine it’s not like it’s super confusing (and Celsius is so much more useful scientifically).

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12 points
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Which system did you grow up with? Because I grew up from the start with Celsius und it is 100% intuitive to me. Everytime you americans use your funny temperature numbers I have to stop and use a tool for transforming it or I simply ignore it and go “low means cold and high means hot, how high? Ain’t nobody got time for dat!”

So I disagree with your notion that Fahrenheit is intuitive. The system you grew up with and have multiple experiences as reference points for, is the system you feel is intuitive is also my opinion.

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-8 points

It has only been 100°F once in the last century. Nobody has any point of reference to make this intuitive. 30°C/85°F is defined as hot around here. 40°C/100°F is defined as national emergency.

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1 point

“cold” and “hot” are completely non-descriptive and useless parameters for your supposed “intuitive” system.

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2 points

How is 0F 100% cold though, most places will never get that cold, so it surely makes more sense to have 0F at freezing point of water and 100F at 38C?

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2 points

Not to mention negative numbers.

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1 point

Freezing point of pure water - but saltwater/brine freezes as a different temperature.

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1 point

pure water at mean atmosphere pressure at sea level if we’re getting technical, but frankly human body temperature varies from 35.5C (95.9F) to 37.5C (99.5F) anyway, and that’s before considering when people are ill, so if we go down that route it falls apart quickly enough that the definition of 100 given above is clearly just as arbitrary

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2 points

0F is 100% cold, and 100F is 100% hot.

So 50% is perfect temperature, no?

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1 point
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Lol, 0F is not 100% cold. That is barely cold unless you live in very warm place like tropic or something

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2 points

Do you live in northern canada?

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1 point

Europe

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0 points

People do live outside of North America. I know that must be news to you, but it is the truth.

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1 point

Is 50°F 50% cold or 50% hot?

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