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• protist@mander.xyz ⁨1⁩ ⁨year⁩ ago

  I’m assuming this is because the concept of absolute zero did not exist when most of these temperature scales were defined, whereas zero distance and zero weight were easily observable

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  • lowleveldata@programming.dev ⁨1⁩ ⁨year⁩ ago

    zero weight were easily observable

    how?

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    • tigeruppercut@lemmy.zip ⁨1⁩ ⁨year⁩ ago

      People looked at yo mama and could immediately conceive of the opposite

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    • _danny@lemmy.world ⁨1⁩ ⁨year⁩ ago

      How much water, by weight, is in an empty cup? Round to the nearest amount an average 17th century merchant could identify.

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    • BillyTheSkidMark@lemm.ee ⁨1⁩ ⁨year⁩ ago

      I guess in terms of an actual weightless object… Not… But if you have 2 equal weight items, call their combined weight 1 weight unit, take one away, that’s half a weight unit, take two away, that’s zero weight units.

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    • DroneRights@lemm.ee ⁨1⁩ ⁨year⁩ ago

      Clouds

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• Fleur__@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Real metric supremacists be washing their hands with napalm after that handshake

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• xkforce@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Rankine is there twice.

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  • meco03211@lemmy.world ⁨1⁩ ⁨year⁩ ago

    And it shouldn’t have degrees like Kelvin, right?

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    • sushibowl@feddit.nl ⁨1⁩ ⁨year⁩ ago

      The Rankine scale is generally measured in degrees. That’s because it’s defined in terms of the Fahrenheit scale, which is also measured in degrees. i.e. 1 Rankine degree = 1 Fahrenheit degree.

      This is not the case for the Kelvin scale, which is defined directly in terms of thermal energy: 1 Kelvin ≈ 1.38*10^-23 J. Coincidentally (but not really of course) this amount of thermal energy is such that an increase of 1 Kelvin corresponds to 1 degree Celsius.

      This is rather pedantic, as you could easily define Rankine in terms of thermal energy as well. Some people do this and don’t say “degrees” in front of Rankine. Or, you could define the Kelvin in terms of the Celsius, and measure it in degrees.

      tl:dr Rankine has degrees, but for mainly historical reasons.

      P.S.: Kelvin actually also had degrees until 1968!

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    • captainlezbian@lemmy.world ⁨1⁩ ⁨year⁩ ago

      It does share a 0 with kelvin

      And F and C share a -44

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    • xeekei@lemm.ee ⁨1⁩ ⁨year⁩ ago

      Not if it’s an absolute scale, no. And then it does actually agree on what 0 is with Kelvin too.

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  • ChaoticNeutralCzech@feddit.de ⁨1⁩ ⁨year⁩ ago

    Someone probably incorrectly wrote Réaumur degrees. (Copy of Celsius but ×0.8 for some reason)

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  • user1234@lemmynsfw.com ⁨1⁩ ⁨year⁩ ago

    °R refers to the Réaumur temperature scale which goes from 0 for freezing and 80 is the boiling point.

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  • chiliedogg@lemmy.world ⁨1⁩ ⁨year⁩ ago

    And had the same zero as Kelvin.

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• jgjl@discuss.tchncs.de ⁨1⁩ ⁨year⁩ ago

  Remember kids, if it’s not metric it has nothing to do with science!

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  • chiliedogg@lemmy.world ⁨1⁩ ⁨year⁩ ago

    USGS uses imperial for a ton of publications. As a geographer, I had to get pretty comfortable with both standards.

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• uis@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Kelvin and Celsius are best buddies.

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• puchaczyk@lemmy.blahaj.zone ⁨1⁩ ⁨year⁩ ago

  I like that °C and K don’t point at eachother.

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• Epicurus0319@sopuli.xyz ⁨1⁩ ⁨year⁩ ago

  Isn’t Rankine the Kelvin of Fahrenheit

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  • runner_g@lemmy.blahaj.zone ⁨1⁩ ⁨year⁩ ago

    Yes. And 0 people use it.

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    • Epicurus0319@sopuli.xyz ⁨1⁩ ⁨year⁩ ago

      It was invented by some scottish guy long before we had the means to measure things that would need it, and ever since that multibillion-dollar satellite thing fell to pieces even American scientists use metric units, we learn them in every grade level’s science class and our scientific community has this understandable atmosphere of regret that Congress was too lazy to completely kill off imperial units when they had the chance

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