"Elizabeth D. Rather" wrote:
>> After all, folks "knew" for centuries that bleeding was good
> treatment for fevers.
>And they still know that the bare soul is up for grabs in the instant
following a sneeze, hence the obligation to intone "God bless you" or
"Gesundheit" during the period of hazardous exposure.
Engineering is the art of making what you want from things you can get.