Hermann von Helmholtz. Best known for his study of electricity, Helmholtz also was a pioneer in the study of color. He extended the theory of Young that color could be represented by combinations of ...

THE following translation of the critical account given by von Helmholtz of the colour-theory of E. Hering, in the new edition of his Handbuch der Physiologischen Ohtik, commencing at page 376 ...

ON a visit to the Cambridge Physiological Laboratory not long ago Dr. Hartridge demonstrated an apparatus of his design that showed the effect of a repeated sinusoid vibration on a series of ...

The relation between various boundary integral equation formulations of Dirichlet and Neumann problems for the three-dimensional Helmholtz equation is clarified. The integral equations derived using ...