Quantum redactiones paginae "Gulielmus Thomson, baro Kelvinus" differant

</ref> sed etiam quia analysim mathematicam scientiarum [[physica electromagnetica|electromagneticae]] et [[physica statistica et thermodynamica|thermodynamicae]] saeculi 19 maxime ingreditur.

 

:''Non est possibile, nisi facultas immaterialis intercedit, phaenomenon mechanicae derivare e cuiusquam materiae parte quam frigescimus sub frigidissima tempuratura corporum circumpositorum.''<ref>[[Anglice]]: "It is impossible, by means of inanimate material agency, to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects," W. Thomson, "On the dynamical theory of heat; with numerical results deduced from Mr. Joule's equivalent of a thermal unit and M. Regnault's observations on steam," Math. and Phys. Papers '''1''' (1851) p.179.</ref>