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radiation. Confusingly, that suggests that absorption is not 100%; some is going back out. Emission qualities depend on the temperature. Is the temperature determined by the absorbed radiation? Or just by an independent local heat source? Is the thermal capacity of the bb relevant to heating caused by absorbed radiation? Is the relevance of a bb to physics because it absorbs, it emits, or both? Or is it because it transforms incident radiation into outgoing radiation with different properties dependent on its temperature which is determined by what?? Any clarifications would be appreciated.
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I am trying to understand black bodies (bb), not being a physicist. This article, like others I have read, talks about absorption and emissions of radiation. Absorption by a bb is defined to be 100% of incident radiation. In the next sentence, at the beginning, we are told that a bb emits
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Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to
Restbase.") from server "/mathoid/local/v1/":): {\displaystyle T=\frac {\hbar c^3}{8\pi Gk_\text{B}M} \ ,}
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477:. At that point it should say why anyone would want to idealize a body and here should be examples of what a "body" is. I'm not expert enough to add it myself, but something along the lines of
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could be easily slotted in to this article under
Idealizations, though I don't know if there's enough there to warrant its own subheading or if it could be added under a heading like:
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tag to be of any help, and my only hope is that someone who follows this page (or has it on their watchlist) is able to check it and correct the error.
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at the time. There may be suggestions below for improving the article. Once these issues have been addressed, the article can be
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on
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has a formula that drops the following error (in the Brave browser, running on macOS Big Sur):
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with justification of why measuring the emissions over a specific spectral band is useful.
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Feel free to remove this message once the issue is fixed. —
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