[Greenbuilding] Jevon's and plumbers

Reuben Deumling 9watts at gmail.com
Tue Jul 31 10:26:31 CDT 2012


On Mon, Jul 30, 2012 at 11:57 AM, Clarke Olsen <prismoidal at gmail.com> wrote:

>
> Are engines more efficient now then in your father's Oldsmobile?
>

Let's not forget inflection points. Things don't just automatically get
more and more energy efficient. For much of the middle of the 20th Century
~1940-1975 lots and lots of systems, machines, devices because much less
energy efficient and not by accident either.

1940 +/- was an inflection point at least in US manufacturing when it comes
to lots of generally desired parameters: durability, efficiency,
repairability, even aesthetics (this one is of course more debatable, but
my point of including it is that more attention was put into the exterior
of the machines, into the casting details, the decorative flourishes, than
in later periods, and this was not altogether a bad thing). Pride in
workmanship as expressed in various ways including the exterior surfaces
doesn't hurt.
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