Difference between revisions of "White Body"
From ExoDictionary
m (1 revision(s)) |
|
(No difference)
| |
Revision as of 21:09, 2 May 2007
This definition page has been automatically generated. You can help ExoDictionary by expanding, updating, or correcting it. |
| This autostub has not yet had its initial copyediting proof and may contain significant formatting and even factual errors. You can improve Exodictionary by cleaning up the page markup and verifying that the definition is correct and then removing this tag. |
| This autostub has not yet had its initial categorization proof and may be categorized incorrectly. You can improve Exodictionary by removing inappropriate categories and then removing this tag. |
White Body
</dt>
A hypothetical body whose surface absorbs no electromagnetic
radiation of any wavelength, i.e., one which exhibits zero absorptivity
for all wavelengths; an idealization exactly opposite to that of the black
body. See gray
body.
</dd>
In nature, no true white bodies are known. Most white pigments
possessing high reflectivity for visible radiation are fairly good absorbers
in the infrared; hence, they are not white bodies in the sense of the
radiation theory. However, the term white body is used for physical objects
with respect to a particular wavelength interval. [[/a>|/a>
]]
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
