Video monitoring of the superheated liquid boiling up at the attainable superheat boundary

Using video monitoring, we have observed for the first time the phenomenon of heterogeneous boiling up in a liquid at the attainable superheat boundary, where the boiling up is traditionally assumed to be homogeneous. Thus, the proximity of the theoretical superheat temperature to the results of measurements cannot be considered evidence for the correctness of the theory, since one of the basic assumptions (homogeneity of the boiling up process) is not valid.