“All integral laws of spectral lines and of atomic theory spring originally from the quantum theory. It is the mysterious organon on which Nature plays her music of the spectra, and according to the rhythm of which she regulates the structure of the atoms and nuclei.” PhysicsQuantum TheoryFine Structure Constant Book:Atombau und Spektrallinien. Source: Atombau und Spektrallinien.
“After the discovery of spectral analysis no one trained in physics could doubt the problem of the atom would be solved when physicists had learned to understand the language of spectra. So manifold was the enormous amount of material that has been accumulated in sixty years of spectroscopic research that it seemed at first beyond the possibility of disentanglement. An almost greater enlightenment has resulted from the seven years of Röntgen spectroscopy, inasmuch as it has attacked the problem of the atom at its very root, and illuminates the interior. What we are nowadays hearing of the language of spectra is a true 'music of the spheres' in order and harmony that becomes ever more perfect in spite of the manifold variety. The theory of spectral lines will bear the name of Bohr for all time. But yet another name will be permanently associated with it, that of Planck. All integral laws of spectral lines and of atomic theory spring originally from the quantum theory. It is the mysterious organon on which Nature plays her music of the spectra, and according to the rhythm of which she regulates the structure of the atoms and nuclei.” SciencePhysicsAtomsNucleusPlanckSpectroscopyAtomic StructureAtomic TheoryBohrMax PlanckNiels BohrWilhelm RöntgenNobel LaureatesRöntgenSpectraWilhelm Conrad Röntgen Book:Atombau und Spektrallinien. Source: Atombau und Spektrallinien.
“Mathematics is like childhood diseases. The younger you get it, the better.” ChildrenChildhoodYouthDiseaseMathematics Author:Arnold Sommerfeld
“If you want to be a physicist, you must do three things-first, study mathematics, second, study more mathematics, and third, do the same.” IfsWantFirstsScienceThreeStudyThirdsMathematicsPhysicistThree Things Author:Arnold Sommerfeld
“Thermodynamics is a funny subject. The first time you go through it, you don't understand it at all. The second time you go through it, you think you understand it, except for one or two small points. The third time you go through it, you know you don't understand it, but by that time you are so used to it, it doesn't bother you any more.” ThinkingKnowsFirstsTwoUsedSubjectsFirst TimeThirdsBotherThermodynamicsThird Time Author:Arnold Sommerfeld