plate reaction was Re: Pitch Raising to A440.......Or Not?

[Newton Hunt]

>  don't think this would show that the plate moved.

Hi Wim,

Oh, but it does show that the plate _compresses_, quite nicely, but you really
have to have good measurements before and after, plot the differences and stare
at it a few seconds until you realize, ..., I never thought that it would work. 
Changing the tension on a piano does indeed compress or decompress the plate
struts.  Seeing the graph is the clincher.

Try it, you'll like, just like Mikie.

Be well and have a good weekend.

		Newton