Category: Science - Physics
In the present scientific age every one knows that light is transmitted across space through the medium of the luminiferous ether. This ether fills the whole of the known universe, as far at least as the remotest star visible in the most powerful telescopes, and is often said...
The function of the eye, regarded as an optical instrument, is limited to the formation of luminous images upon the retina. From a purely physical point of view it is a simple e...
3. CHAPTER II.It was explained in the last chapter that we see things through the agency of the light--emitted or reflected--which proceeds from them to the eye, and is suitably distributed o...
4. CHAPTER III.More than one reference has been made to the fact that the sense of sight, even in its best normal condition, is characterised by certain defects and anomalies. Some of these ar...
2. CHAPTER I.In the present scientific age every one knows that light is transmitted across space through the medium of the luminiferous ether. This ether fills the whole of the known univer...
5. CHAPTER IV.Optical illusions generally result from the mind's faulty interpretation of phenomena presented to it through the medium of the visual organs. They are of many different kinds,...
1. CHAPTER V.