Recently a new class of superconducting compounds with remakable superconducting properties has been found. These compounds are ternary molybdenum chalcogenides of the type MxMo6X8[Mx=Pb, Cu… X=S, Se, Te] and the first system of ternary superconductors. It seems that the discovery of these compounds is a beginning to produce new improved superconductors. This paper describes the superconducting and normal properties of these compounds.
At present, method of transient cooldown is widely used for studying boiling process. This method was successfully applied to studies of film boiling of cryogenic liquids. The aim of the present work is to determine temperature of heat exchange surface while investigating heat transfer by the method of transient cooldown. For this purpose it is proposed to approximate temperature curve cooldown with the help of continued smooth function.