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:
“When I lie down, I say, When shall I arise, and the night be gone? and I am full of tossings to and fro unto the dawning of the day.”
—Bible: Hebrew Job 7:4.
“Deep in the human heart
The fire of justice burns;
A vision of a world renewed
Through radical concern.”
—William L. Wallace (20th century)