On Fri, May 15, 2020 at 12:17:56PM +0900, Stephen J. Turnbull wrote: > Terrible example, since a glass is just a geologically slow liquid. ;-)
That's a myth :-) The key test for a liquid is not whether is flows, since solids also flow. (In solids, this usually happens very, very slowly, and is usually called "creep".) The key test is whether it can *drip*, and glass does not drip (except when molten). Glass is considered a non-crystaline or amorphous solid. https://en.wikipedia.org/wiki/Amorphous_solid Pitch, on the other hand, is a geologically slow liquid :-) https://smp.uq.edu.au/pitch-drop-experiment Arguments over the precise definition of states of matter are, to some degree, futile. I've seen amorphous solids described as "liquids that don't flow" and non-Newtonian liquids described as "solids that flow". -- Steven _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/A5XZRBVTIZOBXKRGVWFWYGGR44MPEQW3/ Code of Conduct: http://python.org/psf/codeofconduct/
