ABSTRACT
I have already mentioned papers [49, 106] devoted to superfl.uidity, to say nothing of papers (96, 108-112, 119] on the W-theory of superfl.uidity. I would like also to mention the notes [157, 158] whose titles cast light on their contents. Finally, I shall dwell on the thermomechanical circulation effect in a superfl.uid liquid [144, 159]. In a ring-shaped vessel filled with a superfl.uid liquid (concretely, helium II was discussed) and having two 'weak links' (for example, narrow capillaries), in the presence of a temperature gradient there must occur a superfl.uid flow spreading to the entire vessel. Curiously, the conclusion concerning the existence of such an effect was suggested [144] by analogy with the thermoelectric effect in a superconducting circuit. At the same time, the conclusion was drawn concerning the existence of thermoelectric effects in superconductors [22], in turn, by analogy with the 'inner convection' occurring in helium II in the presence of temperature gradient.
