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  2. Kelvin - Wikipedia

    en.wikipedia.org/wiki/Kelvin

    The kelvin is often used as a measure of the colour temperature of light sources. Colour temperature is based upon the principle that a black body radiator emits light with a frequency distribution characteristic of its temperature. Black bodies at temperatures below about 4000 K appear reddish, whereas those above about 7500 K appear

  3. Highest temperature recorded on Earth - Wikipedia

    en.wikipedia.org/wiki/Highest_temperature...

    The current official highest registered air temperature on Earth is 56.7 °C (134.1 °F), recorded on 10 July 1913 at Furnace Creek Ranch, in Death Valley in the United States. [1] For few years, a former record that was measured in Libya had been in place, until it was decertified in 2012 based on evidence that it was an erroneous reading.

  4. Conversion of scales of temperature - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_scales_of...

    Comparison of temperature scales; Comment Kelvin Celsius Fahrenheit Rankine Delisle Newton ... Highest recorded surface temperature on Earth [2] 331 58 [2] 136.4 [2]

  5. Orders of magnitude (temperature) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    134 K, highest-temperature superconductor at ambient pressure, mercury barium calcium copper oxide; 165 K, glass point of supercooled water; 184.0 K (–89.2 °C), coldest air recorded on Earth; 192 K, Debye temperature of ice; 273.15 K (0 °C), melting point of bound water; 273.16 K (0.01 °C), temperature of triple point of water; c. 293 K ...

  6. List of weather records - Wikipedia

    en.wikipedia.org/wiki/List_of_weather_records

    Highest dew point temperature: A dew point of 35 °C (95 °F) — while the temperature was 42 °C (108 °F) — was observed at Dhahran, Saudi Arabia, at 3:00 p.m. on 8 July 2003. [ 200 ] Highest heat index : In the observation above at Dhahran, Saudi Arabia, the heat index ("feels like" temperature) was 81.1 °C (178.0 °F).

  7. Thermodynamic temperature - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_temperature

    Thermodynamic temperature is a quantity defined in thermodynamics as distinct from kinetic theory or statistical mechanics.. Historically, thermodynamic temperature was defined by Lord Kelvin in terms of a macroscopic relation between thermodynamic work and heat transfer as defined in thermodynamics, but the kelvin was redefined by international agreement in 2019 in terms of phenomena that are ...

  8. Melting points of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Melting_points_of_the...

    Kelvin Celsius Fahrenheit Comments 1 H hydrogen (H 2) use: ... (101.325 kPa) unless noted. Triple point temperature values (marked "tp") are not valid at standard ...

  9. Negative temperature - Wikipedia

    en.wikipedia.org/wiki/Negative_temperature

    This should be distinguished from temperatures expressed as negative numbers on non-thermodynamic Celsius or Fahrenheit scales, which are nevertheless higher than absolute zero. A system with a truly negative temperature on the Kelvin scale is hotter than any system with a positive temperature. If a negative-temperature system and a positive ...