The following quotation from Isaac Newton (who, it should be remembered was an experimenter as well as a theorist) clearly belongs her:

Only those bodies which are absolutely hard are exactly reflected according to these rules. Now the bodies here amongst us (being an aggregate of smaller bodies) have a relenting softnesse and springynesse, which makes their contact be for some time and in more points than one. And the touching surfaces during the time of contact doe slide one upon another more or lesse or not at all according to their roughnesse. And few or none of these bodyes have a springyness soe strong as to force them one from another with the same vigor that they came together.

I wish the same to this company in this winter.

--- Joe Fineman    joe_f@verizon.net

||: If you never do anything stupid, you're not as smart as you :||

||: think.                                                       :||