THE DETROIT JEWISH NEWS

Deadline Is Reportedly Set
for Valerian Trifa's Ouster

WWJ Radio reported
Tuesday that the U.S. Jus-
tice Department has in-
formed Romanian Orthodox
Archbishop Valerian Trifa
that he must find a country
that will accept him by Oc-
tober 1984 or the United
States will deport him to
Romania.
Trifa agreed to deporta-
tion last October in Federal
District Court in Detroit in
exchange for the halting of
U.S. proceedings against
him. The Grass Lake, Mich.
prelate was accused of con-
cealing his ties to the fascist
Romanian Iron Guard when
he entered the United
States and applied for citi-
zenship in the 1950s. He is
also accused of instigating a
pogrom in Bucharest in
1941 that took the lives of
hundreds of Jews and other
Romanians.

rael said it would accept
him if it found there was
sufficient evidence to
successfully try him for
war crimes.

Trifa has argued against
return to his native
Romania, claiming the
Communists would kill
him.
New York dentist Dr.
Charles Kremer pushed the
U.S. government for 25
years to bring charges
against Trifa. Formal
charges were filed in 1975.

Have a beautiful scroll of
the Law prepared, copied by
a talented scribe, written
with fine ink and a fine
quill, and wrapped in a
beautiful silk.
—Talmud

LUPUS
ERYTHEMATOSUS

Since the 1982 agree-
ment, Switzerland, Ger-
many and Italy have re-
fused to accept Trifa. Is-

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Friday, November 25, 1983 3

Progress at Israeli Greenhouses

By BILL CLARK

Features from Israel

JERUSALEM — When
Joshua was fighting for pos-
session of the - Promised
Land, he pleaded that the
sun would stand still and
give him the time to finish
the battle. "So the sun stood
still in the midst of the
heaven, and hastened not to
go down about a whole day."
(Joshua 10:13)
Israeli
Modern
greenhouse farmers would
also like to hold onto the
sunshine; but instead of
Amorites and Philistines,
their enemies are frost, de-
siccation and cost overruns.
The answers to their
problems may not be far
away. Some of the novel
greenhouse techniques
being developed here take
advantage of the sun's
energy 24 hours a day
throughout the growing
season.

At Israel's Agricultural
Research Organization
near Tel Aviv, for exam-
ple, engineer Nahum
Zamir is perfecting a
hydro-solar greenhouse,
a sealed, plastic green-
house built over an artifi-
cal pond. Throughout the
day, while the sun's
warm rays are beating
down on the plastic roof,
water from the artificial
pond is sprayed in a
corner of the interior
through a shower system.
Not only does this shower
decrease temperature
and increase humidity, it
also provides water
which absorbs more
solar energy. By night-
fall, the water in the pond
is quite warm.

In the evening, as the out-
side temperature drops (Is-
rael's arid conditions pro-
vide cool nights), the show-
ers are turned on again.
Now, warm water sprayed
inside the greenhouse helps
keep the temperature up at
a comfortable level. At
dawn the sprayed water be-
gins to draw on its heat
source — the sun — once
again.
The process can also be
reversed, Zamir explains,
and the water can be cooled
during the evening so it can
be sprayed to keep
greenhouse temperatures
down during blistering hot
summer days.
The key to the hydrosolar
greenhouse is the size
of the shower drops, says
Zamir. They must be be-
tween 0.1 and 1.0 millimet-
ers with most measuring
about 0.6 millimeters
across. Larger drops are in-
efficient heat exchange
mediums, and smaller drops
tend to evaporate or blow
away in a slight draft.

Another possible way
of preserving the sun's
benefits, according to
scientists at Ben-Gurion
University of the Negev,
involves putting selected
materials between the
two layers of a double-
skinned greenhouse.
During the day, these
materials absorb heat
and prevent the green-
house from overheating;

at night, they release
their heat and prevent it
from getting too cold.

In a similar project at the
Blaustein Institute for Des-
ert Research, the material
used is a special liquid
chemical optic filter. Essen-
tially, the liquid filter lets a
certain part of the light
spectrum into the green-
house, and absorbs the rest
which is used to heat the
greenhouses at night.
Other Israeli scientists
are working on non-sun-
related methods of main-
taining the proper green-
house environment. Prof.
Ido Seginer, at the Techn-
ion, Israel's Institute of
Technology in Haifa, has
hooked up a standard
greenhouse with a mic-
rocomputer. The professor
has fed all the vital infor-
mation for a plant's growth
— temperature, humidity,
fertilizer needs, light inten-
sity, etc. — into the corn-
puter's memory bank and
installed monitoring meters
at strategic ' locations
around the greenhouse.
Information from these
meters reaches the com-
puter every two minutes.
The computer compares the
current data with what its
memory bank says is the op-
timum environment for the
plants and adjusts and im-
proves the greenhouse con-
ditions accordingly. This
might mean simply closing
a window or opening it for a
little more ventilation,
turning on a furnace on a
cool evening or opening a
water tap to increase
humidity.

This computerized sys-
tem is designed to make
the operation of a
standard greenhouse
more efficient as well as
more cost effective.

Scientists working on yet
another greenhouse project
at Ben-Gurion University
are making use of large

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