temperature

Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer.
Thermometers are calibrated in various temperature scales that historically have relied on various reference points and thermometric substances for definition. The most common scales are the Celsius scale with the unit symbol °C (formerly called centigrade), the Fahrenheit scale (°F), and the Kelvin scale (K), the latter being used predominantly for scientific purposes. The kelvin is one of the seven base units in the International System of Units (SI).
Absolute zero, i.e., zero kelvin or −273.15 °C, is the lowest point in the thermodynamic temperature scale. Experimentally, it can be approached very closely but not actually reached, as recognized in the third law of thermodynamics. It would be impossible to extract energy as heat from a body at that temperature.
Temperature is important in all fields of natural science, including physics, chemistry, Earth science, astronomy, medicine, biology, ecology, material science, metallurgy, mechanical engineering and geography as well as most aspects of daily life.

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  1. Loveclose

    Highest Average Somehow....

    Greetings to all.... Driving back to Harrogate from the Himalayan Gardens, I aviemore an average of 4.6 miles after 16.4 miles. For large parts of the journey, I was on 4.8.... the first two miles, it was on some ridiculous two digit average!!! Point is, o normally make around 3.6... 50 mpg...
  2. T

    Outside temperature reads -40C - AC completely dead

    Back after a week holiday, got in car it reads -40°C I think nothing of it and drive off. Press the heating on/off button nothing. Go into A/c panel, everything is non responsive and heater is set to low. Everything is dead. Done the home screen reset, driven a few miles to see if that...
  3. K

    Quick return to CarPlay?

    Only had my mg4 a couple of days. It’s an SE, no satnav, so I’m using CarPlay for that. If I select a function on the display eg change temperature, is there a way of going straight back to CarPlay screen, rather than Home then CarPlay press?
  4. Bricktop X PWR

    Outside temperature gone doolally.

    Ive done a search and come up short so....I've left this nearly a week hoping that the car might get a grip of itself. It hasn't. I noticed last week that my outside temperature reading was 29 degrees. Every time I've used it since, it's been over 30. Today when I went out to strip and clean...
  5. J

    Car shows -40 celsius and no air is coming out

    My fan system has stopped working, no air is coming out. The temperature shows -40 celsius, while where I live the temperature is 5 celsius. I can't change the speed or change the temperature Has anyone experienced this and have a solution? The workshop visit is in 2 weeks...
  6. V

    Temperature Display

    This has probably been asked before but I can’t find the answer to it. Why is the outside temperature not displayed inside the car, on the dash for example? Am I missing an update or something because if I want to see the temp I need to go into the app.
  7. T

    Alarm keeps going off on days it is below 0 temperature

    Hi, On the days it is below 0 degrees, my car alarm keeps going off. Is anyone else having this issue? It's very annoying as I live in an apartment block and I have to keep going down to attend it. I couldn't find any posts about this so if already addressed, please could you direct me to the...
  8. P

    Temperature from heater fluctuates

    Hi all, This winter my wife and I have both noted that the temperature from the heater in our car is fluctuating from very warm to suddenly cold, and then back to very warm. This is happening when we have not touched the heating controls (temp or fan). My car is a '21 plate MG5 SR In...
  9. Mgzs ev

    14,8 kwh/100km 10 degrees 👍👍

    Very good range today(ac off and slow driving) 👌 10 degrees Celsius dry weather
  10. R

    Showing internal Temperature

    On the MG app if you run the check the car status function, amongst other things it shows the cars internal temperature. Is there a way you can see the internal temperature on the infotainment screen or the drivers screen. Not the external temp or the temp you have set the car to heat to or cool...
  11. Rolfe

    Does anyone believe this? (Internal/external temperature readings)

    This morning. Checked car to make sure he was awake and ready to accept a pre-heat command later. Internal temperature 9°C External temperature -7°C Last driven on Friday afternoon (that's the day before yesterday), and even then not far enough to warm the cabin. Given the frost on my windows...
  12. J

    Do you use AC in winter?

    I've had my MG4 for 1 month and always had the AC on because otherwise it doesn't get warm in the car, it only blows cold air when the AC is off. A friend of mine with a Tesla said he never needs to have the AC on in the winter because it blows out warm air with the AC off. Then the car sounds...
  13. A

    Is the defogger really that bad?

    It's that time of year when the windscreen is misted up in the morning so I put the demister on to clear it. My fan is usually set to 22C with auto and I only do it to clear the screen when it happens and turn it off when the screen is clear. But I notice that my power consumption ROCKETS to...
  14. RP67

    Cabin heater hunting the target temperature

    I'm not complaining about the offset of the temperature reading, it is inconvenient, but that's it, or the range drop with the AC on, that's pretty much already covered in other threads. However during a recent trip (the first long one with the MG4), I have noticed the heater is not quite as...
  15. H

    Range estimation at -30 celsius?

    At worst the temperature can drop below -30 celsius here in Finland during winter. Is there any data on what kind of range (or problems) is to be expected at that low temp? It seems most cars here in Europe are sold in England where it never gets that cold.
  16. H

    Daily charging (3.3kWh) at work below freezing temperature

    I charge my MG4 SE daily at work @ 3.3kW (I don't have a charging station at home). It is getting colder every day and temperatures are already below freezing. Does the EV LFP battery warm up enough during the drive to work (approx. 20mls/12km) or should I always use "Intelligent Battery...
  17. S

    Temperature settings on Auto A/C

    Hi there everybody. I've had my trophy for a couple of months and I'm finding that the temperature setting on auto a/c seems way off eg 23°C setting feels more like 19°C in car at steady state. I've seen some references to this in other posts. Has anybody had this checked out by a dealer. Is it...
  18. B

    This MG4 is an uncomfortable place to be

    The HVAC system is, like a lot of other software systems on this car…awful. While software is based on the binary, 1 for on, 0 for off, it’s is possible to have some nuance in your software. I’ve had this in every other car I’ve owned. But not the MG4! Set the temp to 27°c (that’s another...
  19. P

    OUTSIDE TEMPERATURE SENSOR!

    Hello everyone, sorry if I don't speak English, I used language translator. I wanted to inform you that here in Italy, on Mg ZS petrol 1.5, there is a temperature sensor. To be able to view it, the only remedy is to use an obd2 reader and the android torque pro application. The sensor is...
  20. fshuk1

    Ambient temperature low

    I sometimes get the message "Ambient Temperature low. Switch on intelligent Battery Heating". In winter it is understandable but I am getting it when the temperature outside is 27 C !!! Does anyone else get this and has any garage solved this problem?
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