On Tue, 10 Apr 2007 11:40:48 -0400, you wrote: >> That seems rather fast, but OK... >> >> Also, if you google "baseball impact physics", you quickly find >> http://webusers.npl.uiuc.edu/~a-nathan/pob/ >> >> with a link to an article in the Nov. 2000 American Journal of >> Physics: "Dynamics of the baseball--bat collision" >> http://webusers.npl.uiuc.edu/~a-nathan/pob/AJP-Nov2000.pdf > > >I had found some of the papers referenced, but not that page. > >In the end though, too much information. I need something I can give >to a crystal vendor to say "has to withstand this". The baseball vs >bat thing is an approximation anyway, so it's closer to an "order of >magnitude" answer that I'm looking for. If the shock is very high, it may be worth looking at some of the various silicon based crystal replacement devices that have appeared recently. And of course consider if you actually need a crystal... -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist