Night vision is the ability to see in low light conditions. Whether by biological or technological means, night vision is made possible by a combination of two approaches: sufficient spectral range, and sufficient intensity range. Humans have poor night vision compared to many animals, in part because the human eye lacks a tapetum lucidum.
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Famous quotes containing the words night and/or vision:
“The first in time and the first in importance of the influences upon the mind is that of nature. Every day, the sun; and after sunset, night and her stars. Ever the winds blow; ever the grass grows.”
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