光跟水波类似。空气或以太质点相对于原点的往复振动的形式向周围的传递就是

Similarly with light waves. Air or ether form of particles with respect to the origin of the reciprocal vibration is transmitted to the surrounding light. Ether medium is air or light. Ether or leaving air, can not produce light, of course, not to mention the propagation of light. Similarly, when the light is propagated, or ether each air particle does not run around, but only with respect to their origin of reciprocating vibration.

Light is similar to water waves. The passing of air or the repeated vibration of the ethereal point relative to the origin is light. Air or ether is the medium of light. Leaving the air or ether, it is impossible to produce light, let alone the spread of light. Similarly, when light is transmitted, each air or ethereal dot does not run wild, but only makes reciprocating vibrations relative to its origin.

Light is like water waves. The transmission of air or etheric particles to the surroundings in the form of reciprocating vibration relative to the origin is light. Air or ether is the medium of light. Without air or ether, light cannot be produced, let alone spread. Similarly, when light is transmitted, each air or etheric particle does not run around, but only vibrates back and forth relative to its origin.