Timeline for How do we measure the temperature of vacuum?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| May 29, 2016 at 15:00 | vote | accept | inf3rno | ||
| May 29, 2016 at 14:08 | comment | added | valerio | I just wanted to point out that if the walls are non-adiabatic they will eventually thermalize with respect to the outside environment, so you will be actually measuring the temperature of the outside environment. But you are right, the mechanism would still be the same and you still would be measuring the temperature of vacuum, so maybe my observation was useless. Just wanted to point out that the "temperature of vacuum" in a vessel would depend on the outside environment unless the walls are adiabatic. Peace! | |
| May 29, 2016 at 13:32 | comment | added | Han-Kwang Nienhuys | @valerio92: huh? Under what circumstances would that result in the temperature measured inside the vessel to be different from the "true" temperature of the vacuum? | |
| May 29, 2016 at 13:17 | comment | added | valerio | And be careful to isolate your vacuum vessel from radiation coming from the outside environment! | |
| May 29, 2016 at 12:21 | comment | added | Han-Kwang Nienhuys | Updated answer. | |
| May 29, 2016 at 12:21 | history | edited | Han-Kwang Nienhuys | CC BY-SA 3.0 |
In space.
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| May 29, 2016 at 12:14 | comment | added | inf3rno | Is there a way to measure the temperature directly on the vacuum and not on the walls? E.g. how do we measure it in the space, where there are no walls? :-) | |
| May 29, 2016 at 12:13 | history | edited | Han-Kwang Nienhuys | CC BY-SA 3.0 |
added 27 characters in body
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| May 29, 2016 at 12:03 | history | answered | Han-Kwang Nienhuys | CC BY-SA 3.0 |