Zany measurements and theories

I suspect that the vinyl that deflects from friction heat returns quickly to its
original form and is back to room temp before the record is finished playing.

For all this talk about a 24-hour cooling off period, is there any resarch to
verify this--with electron micrographs and temperature measurents with a
cooling-off timetable? No? Then a dogma has once again risen out of worst-
case speculation of a theoretical scenario with no verification.

01-27-15: Zd542
JohnnyB53: "Then a dogma has once again risen out of worst-
case speculation of a theoretical scenario with no verification."

It's not speculation. The contact point does get very hot. I did list 2 publications in my last post that dealt with this topic.

If you want some type of scientific explanation, look at it this way: How could there not be heat generated when playing a record. There's friction. I has to heat up.

I never denied that it heats up. Of course it does and I've read the articles too. I'm saying that the dogma to cool your records for 24 hours before replay is idle speculation. In fact, it's empirically contradictory. At the very least an LP would be warm to the touch after playing, but it's at the same room temp it was when it started.

I've read articles about the vinyl going momentarily soft where the stylus passes. Some of these articles also say that the vinyl at the point of contact immediately cools and returns to its original formation after the stylus passes. Rodman explains very well why some momentary intense heat would not have a lasting effect. The hot spot is tiny and constantly moving. The overwhelming mass of the rest of the record acts as a heat sink so there are no lasting effects.

It's been working this way for 67 years.