Zany measurements and theories

Most estimates for stylus surface temps range between 300-
500 degrees(F). The temperature of your record will be
at(or close to) room temperature, except at the point of
contact with the stylus. Much will depend on VTF and
RPM(higher numbers there=higher temps). You're only talking
about milliseconds of contact, between the sylus and any
given point in the groove. Maybe a few molecules of vinyl
will be heated and the surrounding vinyl acts as a
heatsink(ice skate example, on a much smaller scale). I've
got a number of test records, that I used in my shoppe, for
setting up turntables. They were, of necessity, played
multiple times, during a setup. They are still as pristine
in function & sound as when I purchased them. Even the very
high velocity, "Tracking Torture Test Tracks." My
favorite demo record tracks, were often played numerous
times, within a few minutes, to compare my various speaker
models to customers. That was in the 80's and I'm still
enjoying those vinyls, with no loss of presentation.

Empirical evidence(empirical data, sense experience, empirical knowledge or the, "a posteriori") is a source of knowledge acquired by means of observation or experimentation. ie: The second 50% of my last post(my personal experience/observations). Of course; accepting those conclusions would depend on one's confidence in my aural acuity, experience with sound/music and powers of observation. Happy listening!

There are a number of references cited, in the first post of the following thread: (http://www.vinylengine.com/turntable_forum/viewtopic.php?t=27421) No doubt; there's some interesting reading to be found. Especially the Journal of the Audio Engineering Society and Wireless World papers.