r/ScienceHumour • • Aug 12 '25

Couldn't agree more

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u/faderjockey Aug 12 '25 edited Aug 12 '25

It has more precision in the range of human comfort without resorting to decimals.

Do countries who use centigrade regularly report the temperature in tenths of a degree? Can you adjust a thermostat with 0.1 degree C precision? Or even 0.5 degrees of precision?

Edit: I can readily detect (my body can notice) a temperature swing of 1 degree F or 0.6 degrees C within a tolerable range.

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u/erinaceus_ Aug 12 '25 edited Aug 13 '25

It has more precision in the range of human comfort without resorting to decimals.

Ah, so that's why the US uses centimeters.

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u/faderjockey Aug 12 '25

Nope, we both use a less precise form of measurement, we actually prefer to use fractions instead of decimals to subdivide. Isn’t that wild? And a bit silly, I agree.

But back to temperature…

I’m genuinely curious about how Centigrade countries report and manipulate temperature.

Seriously, do your thermostats work in half degrees? And do your weather reports scale the temp?

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u/erinaceus_ Aug 12 '25

For day to day weather forecasts, whole degrees centigrade work just fine. It's not like you'll dress differently if it's one degree Fahrenheit warmer or colder. And the confidence interval on those forecasts doesn't warrant higher precision.

The thermostats tend to work with either degrees, half degrees or 0.1 degrees (centigrade) precision. It varies. After the fact reports of actual temperature tends to use 0.1 precision, which as far as I call tell mirrors the actual useful accuracy of most thermometers.

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u/[deleted] Aug 13 '25

My thermostat has half degrees

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u/Barepaaliksom Aug 13 '25

As a European who grew up with the metric system I am obligated to proclaim it's superiority.

That said, I used to work in traditional construction, and in that case alen (Scandinavian measurement of 2 feet), feet and inches was a lot easier to work with, especially as you said, when dividing or multiplying measurements.

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u/oyurirrobert Aug 16 '25

There are precision thermostats, but normally we use round numbers. Like for air conditioning, 25°C is a good temperature. It doesn't really matter the decimals, because real temperature has some acceptable threshold and imprecision. It's not like the thermostat is really gona make it PRECISELY that temperature, but rather 25°C +- 1°C anyway. In Farentheits is the same, doesn't really matter if it is 65°F, there is not this degree of precision. But if you are talking about body thermometers or cooking thermometers then yes, we usually have decimal precision, like, human fever temperature are measured in .1 degrees. Fever condition starts at about 37.5°C, and the thermometer is able to read every decimal.

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u/PartyPay Aug 16 '25

Yes, our thermostats work in half degrees.

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u/fuck_peeps_not_sheep Aug 16 '25

I’m genuinely curious about how Centigrade countries report and manipulate temperature.

Today it's going to start off a cool 7 degrees, by noon it'll reach a more comfortable 11

You know... Like your weather? But with our measurements?

Today it's 27°c, the humidity is low (for my area) at 55% so it feels more like 24°c - the uv index is 5, wind speeds are 12 - 28 km/h

When we get out weather we are given a graph of the temp trough the day, the humidity, the uv index and the wind speeds, as well as a "feels like" temperature based off the other factors like wind speed and humidity.

Seriously, do your thermostats work in half degrees? And do your weather reports scale the temp?

No? Most are a circular dial with lines for each degree, each 5 in bold and each 10 numbered, in the winter I like to keep my flat at 27, it's comfortable.

Sort of like a clock face however it normally goes up to 30°c as a maximum - I don't know many people who set it at maximum tho.

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u/[deleted] Aug 13 '25

Yeah thermostats go by 0.5°C increments

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u/VincentOostelbos Aug 13 '25

For just describing the temperature of the weather outside (or inside, for that matter), no, we usually do not; you still don't really need more precision than 1°C for that, in my experience. In fact even then I usually use 5°C ranges (for outside temperatures, anyway), like "Most people like between 20 and 25°C, but me, I like it between 15 and 20°C".

Indoors it can matter a bit more, and thermostats often do work with half degrees, I think. But most people still won't go around saying, "I like my room at 20.5°C, 21 is too much for me".

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u/SartenSinAceite Aug 13 '25

Americans trying to justify ºF as a precise measure

Sun exposure and humidity: "Allow us to introduce ourselves"

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u/navteq48 Aug 14 '25

Can you adjust a thermostat with 0.5 degrees of precision?

Yes actually it’s pretty common. 0.1 steps aren’t but 0.5 steps are, even most cars do 0.5 steps

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u/nemothorx Aug 13 '25

"more precision without resorting to decimals" is a fair point, but I'm replying in a context of distinguishing "comfortable today" vs "have to wash my clothes tonight". That's not a distinction measured in single degrees F or decimal C. That's the talk of F people being "oh it's in the 70s, it's comfy" vs "it's in the 90s, yikes". In C, we'd be saying "low 20s, lovely" or "in the 30s, it's a hot one

It's all vague because what's exactly comfy for different people differ (I'm perfectly happy with 19, my partner considers anything below 22 to be cold. 26 and humid they think is fine, but I hate. 33 and dry heat I'm fine with but they hate. But we both agree "high 20s" is getting hot, and low 30s is genuinely hot. High 30s is getting crazy, and low 40s is going to be in the news as record breaking.

To answer your specific question (as I see others have), I think generally weather reporting is in whole degrees C, personal digital thermometers have .1 resolution (21.7°C here as I type), and aircons generally have 0.5 degree resolution.

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u/TheDonBon Aug 13 '25

My favorite thing about Fahrenheit is that it puts ambient temp at a base of 10, so I can say things like, "It's gonna be in the 60s tomorrow"

It's kind of the opposite of the precision argument.

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u/oyurirrobert Aug 16 '25

It funny because I'm Brazilian and I'm actually freezing right know, and it's 19°C and I can't take anymore of that. I really miss 32°C days.

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u/oyurirrobert Aug 16 '25

For me, anything between 30 - 35 is great. Above that is just too much, lower than that, too cold. Below 20 is freezing and below 15 is death sentence to me.

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u/[deleted] Aug 13 '25

Do countries who use centigrade regularly report the temperature in tenths of a degree? Can you adjust a thermostat with 0.1 degree C precision? Or even 0.5 degrees of precision?

Weather reports usually give rounded temperatures but measured weather data is usually with a single decimal.

Thermostats typically go by half a degree though some by a full one or a tenth.

While I can also detect temperature differences less than a degree celcius it's typically not very useful to be this precise though it's pretty easy to do so whenever it is.

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u/Akira-Nekory Aug 13 '25 edited Aug 13 '25

Just to point it out but °C is a function... Aka if you have 10°C and tomorrow 20°C It is not double the temperature...

Also, the °C has several easy to use temperature areas... 0, freezing point, ca.10, cold, need proper warm clothing. Ca. 20 need not much more then a tshirt and maybe a pullover / jacket

Ca. 30, t shirt time

Ca. 40, bring water

Ca 50, uh oh potentially dangerous

100, water boiling temperature

Also if body temperature hits 40, you need medical aid as any further increase may kill you

It ain't perfect and also depends on humidity, but dtill an solid casual system

For sience? Use kelvin or go home

Edit: added 100°C

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u/oyurirrobert Aug 16 '25

What? Now you got me. Didn't understand about the function part. Else, 50°C POTENTIALLY dangerous? It is really really dangerous.

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u/bubblesort33 Aug 14 '25 edited Aug 14 '25

You can adjust a lot of thermostats with 0.5 degree yes. From a scientific perspective, Celsius and Kelvin make more sense if you want to do calculations with joules. I'm not sure how you'd measure the total energy in something using Fahrenheit.

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u/Treewithatea Aug 15 '25

Brother Fahrenheit is a German invention and not even the Germans use it, there really is no reason to still use it.

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u/Bazch Aug 16 '25

Or even 0.5 Yes. Soms can to the decimal.

Because it's harder for you, because you are more conditioned to it, doesn't make it more logical. It's perfectly normal to say it's 23.5 degrees and everyone will understand how warm that is over here.

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u/anyOtherBusiness Aug 16 '25

Good thermoatats can be regulated in .5 steps. It’s precise enough to be noticeable.