Happy Easter!

["Dean Still" <dstill@epud.net>]

Dear Friends,

Just a update on the ETHOS stove activity of late. And wishing joyous
spiritual resurrection to all! Spring fills Aprovecho with clouds of plum
blossoms, a gentle pink, the sun begins to feel warm, winds are welcome
again and remind me of the grace I've felt sailing. One of the beautiful
things about having a boat at anchor is that experience ashore benefits from
a finite time limit. Reflecting on death and resurrection shares, perhaps,
something of the same heightened awareness.

Two ex-interns are set to build the cement block base of Larry's food dryer
this next Saturday. It will be ready to dry the hundreds of pounds of plums,
apples, pears that we grow. I hope to involve the Spring interns in tweaking
it for best efficiency. We'll have a report ready in a couple of months.

Peter will be going to South Africa to introduce the two pot griddle stove
with chimney Rocket stove in June. We are all working with him to create a
prototype that demonstrates three kinds of combustion chambers (homemade
fire brick, heavy steel, cast iron) while at the same time allowing three
kinds of pot placement (submerged, partially submerged, on top of rings in
the griddle). We hope that this demonstration stove will allow users to see
very directly the effects of choices made in material and design. Changing
the arrangements changes efficiency from about 15% to about 40%.

Peter and Larry are working on a manual for the simple Rocket stove made in
Chiapas, Mexico. I'm planning to publish this manual on the Aprovecho and
ETHOS sites.

Ken is helping to create the beautiful homemade fire bricks that surround
the submerged pots in the South African prototype. Cast in molds they create
the perfect 1/4" gap around the pots.

Lanny Hanson is ready to begin the process of building the improved Rocket
Wok stove. So far, students and staff have eight suggested improvements.
Number one is likeable, we hope that number two will benefit from the
critique that comes from use.

University of Dayton (Dr. Margie Pinnell and students) are hard at work
analyzing hundreds of sample bricks that Ken has made. We hope to deepen our
understanding of homemade fire brick. The goal is a durable brick that is
very insulative, floats on water.

Dr. Ananda Cousins and students are studying the Haybox. I can't wait to
hear their report at the next ETHOS meeting.

ETC, Etc.

Best Wishes Everyone!

"Hay Mas Tiempo Que Vida"
(Time is longer than Life)

Dean




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