While I can’t seem to find the animations used for visually describing these properties, I did give a substantial update to the PhysicalProperties page:
The properties section now gives a bit more information too, hopefully without sounding like physics lecture
If you have any suggestions, I’m all ears – I want this page to be as helpful as possible. I’ll also cross post this update in the thread you linked. I’ll see what I can do to get some animations on the page, as well. Generally animations tend to be more useful for tutorials than for docs like this one, but I think I can make an exception here.
Edit: I’ve fixed a couple typos in the above screenshots, rest assured they’ll be visible when this update is published to live in a day or so.