Talk:Lowest temperature recorded on Earth

message: Measured at Scottish station in Elgin in 2019 (today: february 2018)? Something went wrong here. And then the article mentiones Vostok again as the station that measured the lowest temperature.  — Preceding unsigned comment added by 84.115.133.173 (talk) 10:59, 27 February 2018 (UTC)

message: There is no such 'thing' as coldest temperature, or for that matter fast speed etc. It certainly is low and high temperature. The temperature is an expression how warm or how cold something is, it cannot be cold or warm in it self.--Leonfv (talk) 16:45, 17 April 2010 (UTC)
thread_title:  Not coldest but lowest 

message: The sentence "In 1908 he managed to lower the temperature to less than one degree above absolute zero, to less than −269 °C (3 Kelvin)" does not makes sense. This is saying "helium was taken to less than 1K, to less than 3K." after reading the original paper by Heike Kamerlingh Onnes, I do not believe Onnes ever cooled helium below 1K in 1908 (or even below 2.2K, as that is when helium becomes a superfluid, not discovered until 1937).  —Preceding unsigned comment added by 66.66.230.58 (talk) 20:37, 12 December 2010 (UTC)
thread_title:  Temperature of helium achieved in 1908 

message: The link given for the -127.2 temperature mentioned does not validate the data. Everywhere else on the web the lowest temperature recorded seems to be -89.2.
Pickle i po (talk) 12:36, 10 March 2011 (UTC)
thread_title:  Unsubstantiated link? 

message: The temperatures explained in this article are really out of date.
I cannot point to the lowest temperature recorded, but as a reference point, the log-periodic antennas in the Allen Telescope Array operate at about 45K. It is listed as such in the wiki article, and it is not an error, as the one time I visited the ATA, the engineer that was conducting the tour indicated the cooling mechanisms can get the antennas down to 4K. Apparently that is not sustainable for long periods of time, but they can do it. Wingtipvortex (talk) 01:08, 6 April 2012 (UTC)
thread_title:  Really Outdated 

message: In the first paragraph that doesn't allow editing by lowly particular individuals such as myself, it says "This is lower than the melting point of carbon dioxide (dry ice).". This should be changed to the sublimation point of carbon dioxide.
75.175.24.214 (talk) 02:50, 11 November 2012 (UTC)
replies: text: Done. Gabriel Kielland (talk) 18:58, 11 November 2012 (UTC)
replies: text:  See above discussion on the “dry ice” topic. Greg L (talk) 18:43, 20 January 2015 (UTC)
thread_title:  melting point of carbon dioxide? 

message: Wouldn't they be the lowest? Halfhat (talk) 20:28, 26 April 2014 (UTC)
replies: text: True negative temperature in all degrees of freedom in atomic/molecular motions and excitations is by definition impossible, because that would imply negative kinetic energy, which would require either negative mass or imaginary velocity, both contra-physical. The "negative temperatures" produced in laboratories are a result of defining a "temperature" for only a particular subset of atomic/molecular motions and excitations and ignoring the rest. For instance, a laser medium is formally colder than zero towards its resonant wavelength, because shining light of that wavelength results in emission of more radiation than went in, thus leaving significantly less energy than its previous kinetic energy in those degrees of freedom. But, that was only possible because it was first pumped into a high energy state. Moreover, in other degrees of freedom, such as IR-range molecular vibration, nothing unusual is going on, and the laser medium is still a regular warm object. --vuo (talk) 06:55, 27 April 2014 (UTC)
thread_title:  Negative Kelvin Temperatures 

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thread_title:  External links modified 

message: A change was made on 30 June 2018 -- see https://en.wikipedia.org/w/index.php?title=Lowest_temperature_recorded_on_Earth&type=revision&diff=848222703&oldid=846902983 . This specifies a new record based on satellite measurements of near-air surface temperatures, as opposed to ground-based thermometers of surface temperature. The next paragraph notes that a similarly-taken measurement "may not be listed as the record lowest temperature as it was measured by remote sensing satellites and not by ground-based thermometers, unlike the 1983 record." Due to this statement, I've undone the above change. If folks think it should be re-added, then I believe it's also necessary to concurrently change the next paragraph so as not to contradict the new record's method. --Larry/Traveling_Man (talk) 20:23, 3 July 2018 (UTC)
thread_title:  Undoing a change based on satellite  measure of near-ground temps 

message: In relation to Larry/Traveling_Man's discussion, I think a new section or sections should be added about lowest temperatures recorded on Earth that meet different criteria, and not necessarily at ground level. For example: 1) Lowest temperature recorded at sea level, 2) Lowest temperature recorded of soil, 3) Lowest temperature recorded in Earth's troposphere, stratosphere, and mesosphere, etc. --Firth m (talk) 00:50, 2 May 2024 (UTC)
replies: text: Are there reliable sources for these values? Johnjbarton (talk) 02:17, 2 May 2024 (UTC)
thread_title:  Suggestion to make new section(s)