<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>lynguist</author><text>Twice as hot is also useful in Celsius. For every increase of 10C chemical reactions happen twice as fast, it will literally, thermodynamically be twice as hot.&lt;p&gt;Which will probably even match your subjective feeling.&lt;p&gt;Celsius scales thermodynamically logarithmically. You can’t just double the numbers. (The same with sound etc.)</text><parent_chain><item><author>mikewarot</author><text>If you want &amp;quot;twice as hot&amp;quot; to be meaningful, you have to use an absolute scale, either Kelvin or Rankine.   (1 K = 1.8 °R)
Doubling absolute temperature doubles the pressure (at constant volume) or volume (at constant pressure) of an ideal gas. This gets &lt;i&gt;really important&lt;/i&gt; when it comes to compressing and expanding air and other gasses.&lt;p&gt;Room temperature is approximately 293 K, twice that is 586 K &amp;#x2F; 595 °F &amp;#x2F; 313 °C.  Hotter than your typical oven cooking temperature.&lt;p&gt;We often don&amp;#x27;t realize how warm the world we live in truly is, from a physics standpoint.</text></item></parent_chain></comment><story><title>Localization Failure: Temperature Is Hard</title><url>https://randomascii.wordpress.com/2023/10/17/localization-failure-temperature-is-hard/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>usui</author><text>Kelvin doesn&amp;#x27;t use degrees</text><parent_chain><item><author>mikewarot</author><text>If you want &amp;quot;twice as hot&amp;quot; to be meaningful, you have to use an absolute scale, either Kelvin or Rankine.   (1 K = 1.8 °R)
Doubling absolute temperature doubles the pressure (at constant volume) or volume (at constant pressure) of an ideal gas. This gets &lt;i&gt;really important&lt;/i&gt; when it comes to compressing and expanding air and other gasses.&lt;p&gt;Room temperature is approximately 293 K, twice that is 586 K &amp;#x2F; 595 °F &amp;#x2F; 313 °C.  Hotter than your typical oven cooking temperature.&lt;p&gt;We often don&amp;#x27;t realize how warm the world we live in truly is, from a physics standpoint.</text></item></parent_chain></comment><story><title>Localization Failure: Temperature Is Hard</title><url>https://randomascii.wordpress.com/2023/10/17/localization-failure-temperature-is-hard/</url></story>