United States or Wallis and Futuna ? Vote for the TOP Country of the Week !
We shall further suppose the dimensions of the whole to be such that the part observable on the screen represents only a portion of the total light-realm situated between the boundaries of the prism. The result is that the screen depicts a light-phenomenon in which there is no trace of colour.
The motion of ether-particles thus caused may be represented by vibrations, which form the starting-point of light and heat-waves. In quite a similar manner we may also, according to Dr. Siemens, represent the light-phenomenon occurring when an electric current is sent through gases, which always takes place when the maximum of polarization belonging to them is exceeded.
Word Of The Day