Primele pompe de caldura. Consum energetic "Zero". http://www.alyeska-pipe.com/TAPS/PipelineFacts, (http://www.alyeska-pipe.com/TAPS/PipelineFacts,) http://en.wikipedia.org/wiki/File:Alaska_Pipeline_Closeup_Underneath.jpg, (http://en.wikipedia.org/wiki/File:Alaska_Pipeline_Closeup_Underneath.jpg,) http://en.wikipedia.org/wiki/File:Heatpipes.JPG (http://en.wikipedia.org/wiki/File:Heatpipes.JPG)
The Application of Heat Pipes on the Trans-Alaska Pipeline + Heat pipes and its applications
mda...
link 1 si link 2 (pozele in ordinea asta)...
al 3-lea link merge.