So why is the surface preferentially emitting radiation in the up direction?
As an aside, I would like to remark that it is possible to invent models which work according to the laws of physics which predict the measured behaviour of a given system. However, upon reflection and further study the model may posses characteristics which do not actually correspond to the system being study. Harry On Sat, Mar 16, 2013 at 2:37 PM, Alexander Hollins <[email protected]> wrote: > yes, because the feathers let heat flow internally. the heat is all leaving > in the up direction. > > On Sat, Mar 16, 2013 at 11:11 AM, Harry Veeder <[email protected]> wrote: >> >> here is the paper >> http://www.ipev.fr/pages/bio%20lettersl >> >> the back and sides of the peguin are cooler too. >> >> Harry >> >> On Sat, Mar 16, 2013 at 2:04 PM, Alexander Hollins >> <[email protected]> wrote: >> > wear a well insulated jacket outside at night someplace cold (no clouds) >> > for >> > a couple of hours. Feel the shoulders of the jacket. They will be colder >> > than the sides. Same thing. your "outer shell" becomes colder than the >> > surrounding air. >> > >> > >> > On Sat, Mar 16, 2013 at 10:22 AM, Harry Veeder <[email protected]> >> > wrote: >> >> >> >> Does the explanation make sense to you? >> >> harry >> >> >> >> Emperor penguin body surfaces cool below air temperature >> >> >> >> http://royalsociety.org/news/2013/cool-penguins/ >> >> >> >> Harry >> >> >> > >> >
