3 ms·

I'm missing something here. What kind of mice have an environment of 30-32 degrees C in the wild? House mice live at the same temperature as people - they might

by ajb 6y ago

I'm missing something here. What kind of mice have an environment of 30-32 degrees C in the wild? House mice live at the same temperature as people - they might be able to be warmer in their nest, but presumably so can lab mice, without making the room warmer. Are lab mice sourced from some species that is from a hot country? Regardless of the temperature the mice prefer, obviously it would be a good idea to record the temperature the experiment was conducted at.

munificent 6y ago
> House mice live at the same temperature as people I would guess that the interiors of walls and attic spaces are a good bit warmer than the open portion of a room where we live.
- ajb 6y ago
  Walls may be better insulated, but to accumulate a high temperature you need a source of heat. Where is the source of heat in a wall? For attics you might be on to something as heat rises. Still, 30 degrees seems a lot to me.
  - zxwx 6y ago
    The sun is the heat source.
  - NeutronStar 6y ago
    It's 30 degrees outside all the time. Do you expect every house ever built to have been using AC?
  - crooked-v 6y ago
    > Where is the source of heat in a wall? The rooms around it.
    - ajb 6y ago
      The claim is that the walls can be hotter than the room around it. By the second law of thermodynamics, heat doesn't naturally move from a cooler object to a hotter object, or as Flanders and Swann would put it, "heat don't move from a cooler to a hotter" (https://youtu.be/VnbiVw_1FNs?t=127 https://youtu.be/VnbiVw_1FNs?t=127) [1]
  - GordonS 6y ago
    Have you ever been in a house attic on a hot day? It's absolutely stiflingly hot! It was perhaps 22C at my home yesterday, and by chance I had to get something from the loft - I'd be surprised if it wasn't 30C.
    - ajb 6y ago
      Okay, I concede that Attics could be 30 degrees, at least some of the time :-) Mine probably isn't because the insulation is on the 'floor' of the attic, so it should be approximately the same temperature as the outside air (well, if it were ventilated properly). This is one of the design choices of an attic. Still, I do wonder if this provides enough hot spaces for mice to have evolved to expect a 30 degrees environment. Maybe they do in some places.
      - GordonS 6y ago
        > Mine probably isn't because the insulation is on the 'floor' of the attic Hmm, mine too. > Still, I do wonder if this provides enough hot spaces for mice to have evolved to expect a 30 degrees environment Yeah, this does seem quite questionable to me too, at least for temperate countries.

by ajb 6y ago

munificent 6y ago

> House mice live at the same temperature as people I would guess that the interiors of walls and attic spaces are a good bit warmer than the open portion of a room where we live.

ajb 6y ago
Walls may be better insulated, but to accumulate a high temperature you need a source of heat. Where is the source of heat in a wall? For attics you might be on to something as heat rises. Still, 30 degrees seems a lot to me.
- zxwx 6y ago
  The sun is the heat source.
- NeutronStar 6y ago
  It's 30 degrees outside all the time. Do you expect every house ever built to have been using AC?
- crooked-v 6y ago
  > Where is the source of heat in a wall? The rooms around it.
  - ajb 6y ago
    The claim is that the walls can be hotter than the room around it. By the second law of thermodynamics, heat doesn't naturally move from a cooler object to a hotter object, or as Flanders and Swann would put it, "heat don't move from a cooler to a hotter" (https://youtu.be/VnbiVw_1FNs?t=127 https://youtu.be/VnbiVw_1FNs?t=127) [1]
- GordonS 6y ago
  Have you ever been in a house attic on a hot day? It's absolutely stiflingly hot! It was perhaps 22C at my home yesterday, and by chance I had to get something from the loft - I'd be surprised if it wasn't 30C.
  - ajb 6y ago
    Okay, I concede that Attics could be 30 degrees, at least some of the time :-) Mine probably isn't because the insulation is on the 'floor' of the attic, so it should be approximately the same temperature as the outside air (well, if it were ventilated properly). This is one of the design choices of an attic. Still, I do wonder if this provides enough hot spaces for mice to have evolved to expect a 30 degrees environment. Maybe they do in some places.
    - GordonS 6y ago
      > Mine probably isn't because the insulation is on the 'floor' of the attic Hmm, mine too. > Still, I do wonder if this provides enough hot spaces for mice to have evolved to expect a 30 degrees environment Yeah, this does seem quite questionable to me too, at least for temperate countries.