Hottel's Crossed String Rule
The crossed string rule allows calculation of radiation transfer between opposite sides of a quadrilateral, and furthermore applies in some cases where there is partial obstruction between the objects. For a derivation and further details, see this article by G H Derrick.
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Famous quotes containing the words crossed, string and/or rule:
“And crossed the dark defile at last, and found
At Roncevaux upon the darkening plain
The dead against the dead and on the silent ground
The silent slain—”
—Archibald MacLeish (1892–1982)
“The Indian remarked as before, “Must have hard wood to cook moose-meat,” as if that were a maxim, and proceeded to get it. My companion cooked some in California fashion, winding a long string of the meat round a stick and slowly turning it in his hand before the fire. It was very good. But the Indian, not approving of the mode, or because he was not allowed to cook it his own way, would not taste it.”
—Henry David Thoreau (1817–1862)
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