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White dwarfs are made of degenerate matter in which temperature does not affect pressure.
this is completely untrue! the colour bubblebath you get DOES affect the colour of the bubbles !
White matter
grey matter
The radius will not change because a white dwarf is made of electron degenerate matter, so temperature does not affect pressure or volume.
It is superficial to the white matter.
The white matter consist of myelinated nerve fibers.
Plaque is the coating that creates white matter.
Gray matter doesn't fit. White matter is white because it has myelin covering the axons. And the myelin fiber tract is "white" for the same reason.
The corpus callosum is the largest white matter structure in the brain.
one's grey and one's white.....they're both matter though...
That would be gray matter.