I agree that this is most likely to be a capillary-pumped heat pipe. For more reading about how the wicks work: http://www.thermalfluidscentral.org/encyclopedi

I agree that this is most likely to be a capillary-pumped heat pipe. For more reading about how the wicks work: http://www.thermalfluidscentral.org/encyclopedia/index.php/Capillary_Wick_Designs_and_Structures_in_Heat_Pipes http://www.thermalfluidscentral.org/encyclopedia/index.php/C...