Some articles on perception, light perception, light:
... Blindness is the condition of lacking visual perception due to physiological or neurological factors ... Total blindness is the complete lack of form and visual light perception and is clinically recorded as NLP, an abbreviation for "no light perception ... Those described as having only light perception have no more sight than the ability to tell light from dark and the general direction of a light source ...
... his mathematics of the eye, theories of vision, ideas on the visual perception of space, color vision research, and on the sensation of tone, perception of sound ... for his philosophy of science, ideas on the relation between the laws of perception and the laws of nature, the science of aesthetics, and ideas on the civilizing power of science ... redshift—observed in the spectra of light from other galaxies increased in proportion to a particular galaxy's distance from Earth ...
Famous quotes containing the words perception and/or light:
“For my part, when I enter most intimately into what I call myself, I always stumble on some particular perception or other, of heat or cold, light or shade, love or hatred, pain or pleasure. I never can catch myself at any time without a perception, and never can observe anything but the perception.”
—David Hume (17111776)
“Every winter the liquid and trembling surface of the pond, which was so sensitive to every breath, and reflected every light and shadow, becomes solid to the depth of a foot or a foot and a half, so that it will support the heaviest teams, and perchance the snow covers it to an equal depth, and it is not to be distinguished from any level field. Like the marmots in the surrounding hills, it closes its eyelids and becomes dormant for three months or more.”
—Henry David Thoreau (18171862)