It must enter our eyes.
Sapphire doesn't create or produce light. If you can see it, then it must be reflecting light from something else.
1. there mush be a source of light 2.the light must strike an object 3.the light must be reflected from the object to your eye
The quote "It is during our darkest moments that we must focus to see the light" was said by Aristotle Onasis.
light sight
No. In order to see a rainbow in front of you, there must be a source of light behind you, and the rainbow you see will only have the colors of the source in it.
When light falls on some object, then it absorbs all the colors of visible light spectrum except the color of the object itself which it reflects back (diffusion). So we see the color of the object .
Light enters our eyes through the cornea, passes through the pupil, and is focused by the lens onto the retina at the back of the eye. The light is then converted into electrical signals by the specialized cells in the retina, which are then sent to the brain via the optic nerve for interpretation.
Sapphire doesn't create or produce light. If you can see it, then it must be reflecting light from something else.
Sapphire doesn't create or produce light. If you can see it, then it must be reflecting light from something else.
because light used to see an object must have a wavelength
1. there mush be a source of light 2.the light must strike an object 3.the light must be reflected from the object to your eye
first the pupil must expand to let the light in and the image falls on the retina. comes and rod cells absorb the light and transmit a signal to the brain and the brain flips the image right side up again that's what must happen for the eye to see.
In order to "see" something with eyes, the object must be longer than the light wave refracted from it. Molecules are too small to be refracted.
You only "see" when light enters your eyes. In the dark, there is no light . . . the main reason why we call it "dark". Since there is no light, none can enter your eyes, and you do not see.
By definition, the word "visible" means something you can see. Beware: you cannot see a light ray or beam or photon as it whizzes past you. You only see those rays that enter your eye. In a dusty atmosphere you might say you can see a light beam, but what you see is that part which is scattered into your eyes.
-- You "see" only when light enters your eye. -- You 'see' an object only when light from that object enters your eye. -- If the object itself doesn't generate light, then light from some other source must illuminate the object, and some of that light must reflect from the object to your eye. -- In absolute darkness, there is no light, and you do not 'see'.
laura