What is the difference between an extremely thick liquid and a solid? At which point does the difference stop mattering, it at all?
In: 58
The pitch in the University of Queensland pitch drop experiment (google it, it’s really interesting) is liquid, but there is about a decade between each drop falling.
Glass on the other hand is solid, despite the myth that really old windows are thicker at the base because they’ve flowed (they were just made that way back then).
The biggest difference is that if you put increasing stress on the pitch, it’d flow faster, but glass wouldn’t flow at all as long as it could withstand the forces.
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