Among other things, assays and methods of diagnosis and treatment of disease based on the surprising observation of an interaction between amyloid or its aggregates with the sodium channel are provided. The convergence means comprise coils for generating a magnetic field. A backup source of power consumes hydrogen which is diffused from a solid medium. This enables the rear blade assembly to rotate with high efficiency and continuously rotate even when the wind velocity is low. The produced liquid from the pump and the produced gas are carried towards surface in separate fluid streams, and may be commingled closer to surface.