No, no. There was a series of posts a while back listing various articles\sites with information about what contributes to the sound\timbre of a piano. Just adding to that list, I guess. Over my head, really, but I thought Philippe and Julien might find it interesting, if they haven't already seen it. Probably just gives them a headache, these posts about things they've studied formally.
I did learn some things from the article, though--I didn't realize that each hammer on a grand piano differs, or that the compression of the felt would be so different from note to note. I have to admit that I didn't try to follow the formula all of the way through, though. I got lost when it went into the various grooves. And I kept waiting for some mention of the effect of having different numbers of strings on the compression--the article seemed to assume that the same number of strings was always being struck. I may have missed this, but it seems like it would have a big effect--the compression surely wouldn't be as great when a hammer hit three strings as when it hit one. The article instead speaks only of notes. Maybe the assumption is that the cause of the differing compressions is partly the number and gauge of the strings.
Sorry. I should be learning to play better instead of reading articles I don't understand.