Grassmann's Law (optics)
In optics, Grassmann's law is an empirical result about human color perception: that chromatic sensation can be described in terms of an effective stimulus consisting of linear combinations of different light colors. It was discovered by Hermann Grassmann.
Read more about Grassmann's Law (optics): Statement, Modern Interpretation
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“I wish my countrymen to consider that whatever the human law may be, neither an individual nor a nation can ever commit the least act of injustice against the obscurest individual without having to pay the penalty for it. A government which deliberately enacts injustice, and persists in it, will at length even become the laughing-stock of the world.”
—Henry David Thoreau (1817–1862)