Examlex
What is the minimum number of vectors (none of which have the same magnitude)for which it is theoretically possible that the sum of those vectors can be equal to zero?
Helmholtz
A German physicist and physician known for his contributions to the understanding of the mechanisms of vision and hearing among other areas.
Color Vision
The ability of organisms to differentiate colors, achieved through the varying sensitivities of photoreceptor cells in the eyes.
Opponent-Process Theory
The theory of color vision suggesting that three kinds of cells respond by increasing or decreasing their rate of firing when different colors are present.
Rhodopsin
A light-sensitive pigment found in the rods of the retina, critical for vision in low-light conditions.
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