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[1] If I understand what the specs section of this is saying, you put 1KW of electricity in and about 2.5KW of heat comes out. That is thermodynamically possible because it's a heat pump of course. Does the temperature of the outside air make a big difference to that conversion factor? Is there a standard temperature difference that they rate the things at? My mom (getting up there in years) is chilly all the time and always running electric heaters in the house, so this might be a good thing for her. Thanks. 2602:24A:DE47:BA60:8FCB:EA4E:7FBD:4814 ( talk) 07:42, 5 May 2021 (UTC)
t
In today's featured picture,
, I am confused by the layers.
The white triangle is presumably the centre of the sun, working out to the dark red triangle with the yellow/gold shell colouring. Then there is the orange circle (sphere) around that. But the yellow/gold shell doesn't appear to me to be concentric with the orange sphere. Indeed the curvature on the yellow/gold shell makes it seem bigger than the orange sphere. Am I not seeing something, or is the image flawed? -- SGBailey ( talk) 09:40, 5 May 2021 (UTC)
The yellow/gold shell is labelled Photosphere. The orange sphere is labelled Chromosphere. (I have no idea what "Temperature minimum" is pointing at and why it doesn't say "Minimum temperature". The "Transition region" appears to be the same as the Chromosphere.) -- SGBailey ( talk) 10:16, 5 May 2021 (UTC)
I'm writing a school report about the "no gravity in space" fallacy, and I'm looking for an image which highlights the ISS's orbit relative to the size of the Earth. Where might I find something like that? -- Puzzledvegetable Is it teatime already? 22:39, 5 May 2021 (UTC)
Science desk | ||
---|---|---|
< May 4 | << Apr | May | Jun >> | May 6 > |
Welcome to the Wikipedia Science Reference Desk Archives |
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The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
[1] If I understand what the specs section of this is saying, you put 1KW of electricity in and about 2.5KW of heat comes out. That is thermodynamically possible because it's a heat pump of course. Does the temperature of the outside air make a big difference to that conversion factor? Is there a standard temperature difference that they rate the things at? My mom (getting up there in years) is chilly all the time and always running electric heaters in the house, so this might be a good thing for her. Thanks. 2602:24A:DE47:BA60:8FCB:EA4E:7FBD:4814 ( talk) 07:42, 5 May 2021 (UTC)
t
In today's featured picture,
, I am confused by the layers.
The white triangle is presumably the centre of the sun, working out to the dark red triangle with the yellow/gold shell colouring. Then there is the orange circle (sphere) around that. But the yellow/gold shell doesn't appear to me to be concentric with the orange sphere. Indeed the curvature on the yellow/gold shell makes it seem bigger than the orange sphere. Am I not seeing something, or is the image flawed? -- SGBailey ( talk) 09:40, 5 May 2021 (UTC)
The yellow/gold shell is labelled Photosphere. The orange sphere is labelled Chromosphere. (I have no idea what "Temperature minimum" is pointing at and why it doesn't say "Minimum temperature". The "Transition region" appears to be the same as the Chromosphere.) -- SGBailey ( talk) 10:16, 5 May 2021 (UTC)
I'm writing a school report about the "no gravity in space" fallacy, and I'm looking for an image which highlights the ISS's orbit relative to the size of the Earth. Where might I find something like that? -- Puzzledvegetable Is it teatime already? 22:39, 5 May 2021 (UTC)