Sorry to hear that Fred... If age is not enough then also getting a disease that very well could be vaccine preventable is a kicker. I see the loss of someone who knew and experienced "The ****". I have worked around engineers of the type that were trusted to put together refineries and trouble shoot things in the oil industry. I can say this... They have all been "Jacks of All Trades" and very easy to get along with. They have always been people who offered solutions rather than problems. So not even knowing him I can see his profile in his life long career and his friends on this forum...
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)