Noun
German physiologist and physicist (1821-1894)
Source: WordNetIt has been suggested that at least some of these "Lenard rays" were actually X-rays. citation Hermann von Helmholtz formulated mathematical equations for X-rays. Source: Internet
The physicist Hermann von Helmholtz assisted him in the work over night and returned with the comment that it was "natural" and "very understandable". Source: Internet
Hermann von Helmholtz puts forward the idea of the heat death of the universe in 1854, the same year that Clausius established the importance of dQ/T ( Clausius's theorem ) (though he did not yet name the quantity). Source: Internet
This phenomenon was termed "Farbenglut" by Hermann von Helmholtz and "fluorence" by Ralph M. Evans. Source: Internet