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 <hveeder...@gmail.com> 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 > >
