like as a physical property. i don't know any color-ology maybe there's a simple way to make me get it but
IT SEEMS like color depends entirely on BRIGHTNESS so an OBJECT can't have a fixed COLOR because BRIGHTNESS changes all the time!
like as a physical property. i don't know any color-ology maybe there's a simple way to make me get it but
IT SEEMS like color depends entirely on BRIGHTNESS so an OBJECT can't have a fixed COLOR because BRIGHTNESS changes all the time!
The electromagnetic field is a thing that exists everywhere and can be disturbed, creating waves (photons) that travel throughout space. Think of how you can disturb a perfectly still body of water to send waves to whatever direction. Waves are simply a way to transfer energy through a body (mechanical waves) or through space (electromagnetic waves). The light from the sun, for example, is just energy released through photons as a byproduct of nuclear fusion that occurs in its core. Photons always move at the speed of light, but you can have a source of photons release them in a difference frequencies. Radio waves, visible light, your wi-fi connection, the x-rays you take when you visit the doctor, are all electromagnetic waves being released in different frequencies.
Therefore, light waves are just disturbances in the EM field, and "Sight" is basically the mechanism that life on earth obtained, through evolution, to be able to perceive and detect these disturbances. We can't, however, detect the whole spectrum of EM frequencies, just a small part of it. All colors are simply light waves of different frequencies, humans can perceive them from violet to red, and nothing else. We like to call "infra-red" and "ultra-violet" waves as invisible light because our eyes can't detect them. Some animals, however, can. Ever heard of the mantis shrimp, which are said to be able to "see" way more colors than us? Their eyes are simply able to perceive a wider range of EM wave frequencies.
Does COLOR exist? It's a human concept invented to give name to the different feeling we get when one of our senses is stimulated by a wide array of different light wave frequencies. Does SOUND exist? It's also a form of wave, just a mechanical one. Energy can be transferred through air in the form of waves, the air vibrates which makes our cochlea also vibrate inside our ears. The different pitchness of sound is the way we can sense different frequencies of sound waves. All of these things "exist" in the sense that they're ways our brain interprets the signals sent by other organs responsible for our senses. They're just how we managed to find a way to sense the world around us.
the sound comparison is really good, for some reason it's less confusing to think about even though its passing through the same hoops of perception