Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 12, 2025
"Yes," I agreed mechanically, only vaguely guessing at what he had in mind. "The accurate measurement of temperature is still a problem of considerable difficulty," he resumed, adjusting the thermometer. "A heated mass can impart vibratory motion to the ether which fills space, and the wave-motions of ether are able to reproduce in other bodies motions similar to those by which they are caused.
But we cannot hope to be acquainted directly with the quality in the physical object which makes it look blue or red. Science tells us that this quality is a certain sort of wave-motion, and this sounds familiar, because we think of wave-motions in the space we see.
Light and heat and sound are all due to wave-motions, which travel from the body emitting them to the person who sees light or feels heat or hears sound. That which has the wave-motion is either aether or 'gross matter', but in either case is what the philosopher would call matter.
These images travelled by a process of successive transmission, similar to that by which wave-motions are propagated in water.
But the wave-motions must really be in physical space, with which we have no direct acquaintance; thus the real wave-motions have not that familiarity which we might have supposed them to have. And what holds for colours is closely similar to what holds for other sense-data.
When such an object is magnetised a change is effected in the ethereal portion, the wave-motions are altered and systematised, and made to follow the wave-motions of the ether of the magnetiser; it thus comes to share his nature, and the denser particles of the object, played on by the ether, slowly change their rates of vibration.
Word Of The Day
Others Looking