Lionel Mandrake
Lionel Mandrake's JournalSome spectral colors are lighter than others.
Spectral colors are the colors of a rainbow. These colors are pure, not washed out, not pastel, not muddy. Yellow is often said to be the lightest. Certainly yellow ink or paint has little contrast with white. Nobody would prefer to read text printed in yellow on white paper. Blue seems darkest, with red and green in between. Why?
One explanation I have heard is that it's all about luminosity, the peak of which is about 555 nm for people with normal color vision. But the color with wavelength 555 nm is not yellow; it's the color called "bright green", which is greener than chartreuse. Furthermore the fact that blue is much darker than red does not show up in a graph of luminosity vs. wavelength. So the question has not been answered in a satisfactory way.
https://en.wikipedia.org/wiki/Luminosity_function
Morphology of "antidisestablishmentarianism",
an unusually long English word which means opposition to the separation of Church and State, especially in England.
According to Wiktionary,
antidisestablishmentarianism < anti- +? disestablishmentarian +? -ism.
The morphology is ambiguous, i.e., we could draw different trees. We could have either
antidisestablishmentarianism < anti- +? disestablishmentarianism
disestablishmentarianism < disestablishmentarian +? -ism
disestablishmentarian < disestablishment +? -arian
or
antidisestablishmentarianism < antidisestablishmentarian +? -ism
antidisestablishmentarian < anti- +? disestablishment +? -arian,
with another ambiguity. We could have either
antidisestablishmentarian < antidisestablishment +? -arian
antidisestablishment < anti- +? disestablishment
or
antidisestablishmentarian < anti- +? disestablishmentarian,
disestablishmentarian < disestablishment +? -arian.
According to Wiktionary, the rest of the morphology is unambiguous:
disestablishment < dis- +? establishment
establishment < establish + -ment,
but a possible alternative is
disestablishment < disestablish + -ment
disestablish < dis- +? establish.
The word is only slightly bastardized. Most of the roots are Latin, but the first and last are Greek:
anti- < Ancient Greek ἀ???-, and
-ism < Ancient Greek -???ό? or -????.
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