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[OL-Forum] Digest Number 877
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There are 5 messages in this issue.
Topics in this digest:
1. Re: Digest Number 876
From: <suchida@mvc....ne.jp>
2. Darkness and crime
From: "Barry Clark" <bajc@alphalink....au>
3. Ecolume Arm Mount fixture
From: "John M. McMahon" <mcmahon@mail....edu>
4. Re: Ecolume Arm Mount fixture
From: "Karl Fox" <lldphx@cox...>
5. New Mexico - Night Sky Office
From: "David Penasa" <dpenasa@bplw...>
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Message: 1
Date: Mon, 28 Jul 2003 20:47:32 +0900 (JST)
From: <suchida@mvc....ne.jp>
Subject: Re: Digest Number 876
Hi
Glad to hear from old friends.
The subjects are asked to indicate (1) "the luminance level to which the
subject feels comfortable to see objects" and (2) "the luminance level beyond
which the subject feels difficult to see objects" for local (task ambience)
and overall lighting system. The test are sampled and categorized from visual
tasks in house entrance, toilet, wash room, bath room, dining room, kitchen,
living room, hallway, staircases, and bed room. The test was repeated 5 times
per subject under the 3000K fluorescent lights.
The highest and lowest data are eliminated and remaining three mid-level
results are used to obtain accumulative distribution of comfortable and lowest
luminance for each visual task.
I understand as Kevin says, the effect is psychological or physiological or a
combination of both.
Allow me to stop here.
I ordered seven more papers from IEIJ today, need to pay few visits to
library, and hope to have clearer vision about this.
Cheers!
Shigemi
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Message: 2
Date: Tue, 29 Jul 2003 01:18:03 +1000
From: "Barry Clark" <bajc@alphalink....au>
Subject: Darkness and crime
Hello everyone. Quite a few of you have helped me in the past, sometimes unwittingly. Now's your chance to do it again, and maybe to help all of us!
I have decided, for reasons I won't go into right now, to seek peer-reviewed journal publication of material from my report on outdoor lighting and crime. Part 2 of the report includes a chapter on darkness and crime. I've selected that topic for the first attempt at a journal paper. Its importance stems from the logical barrier an observed association between darkness and reduced crime creates for the common belief that increasing lighting reduces crime.
Although much of the material as it stands in my report is already sufficiently well documented, there is a need to provide better supporting evidence for other parts. Dates and times, place and people names, nature and duration of the dark conditions, and especially numbers and rates of crimes with normal lighting and then in blackouts or brownouts are what is needed, or at least a pointer to where this information can be obtained. Quantitative data and other factual information about Dark Campus programs, and towns that have voluntarily turned some of their streetlights off, would also be valuable. The information could be from almost any country at all.
Note that imposed or accidentally caused dim lighting or darkness have sometimes been reported as increasing crime, eg the case of a small town in Indiana in December 1973, as reported in a book edited by Lawrence J. Fennelly, a crime prevention specialist from the Harvard University Police Department. (The report is in Chapter 14 by C. M. Girard in the third edition of 'Handbook of loss prevention and crime prevention', 1996). It is important that any such crime-increasing occurrences are included to help avoid bias. Misleading findings are the last thing anyone needs.
It would help if Chapter 3 in Part 2 of my report is checked before posting or emailing information in case I already have it. All contributions will be gratefully received, regardless of whether crime increased, decreased, or didn't change.
Thanks,
Barry Clark
Melbourne, Australia
[Non-text portions of this message have been removed]
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Message: 3
Date: Mon, 28 Jul 2003 15:02:23 -0400
From: "John M. McMahon" <mcmahon@mail....edu>
Subject: Ecolume Arm Mount fixture
Any opinions on this fixture?
The convenience store / gas station complex in Tully, NY is
proposing the 14'/18" models of these w/ 400 w MH on 30'
poles ... not a lot of them (as far as I can tell), but they
do have what they are calling a "non-yellowing drop acrylic
lens" -- which, if I read correctly, is a 4" drop.
http://www.sitelighting.com/Products.cfm?Brand=em&ProLine=EC&Style=EC
There are other tech info links at the sight above.
Thanks.
John McMahon
Tully, NY
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Message: 4
Date: Mon, 28 Jul 2003 20:01:50 -0000
From: "Karl Fox" <lldphx@cox...>
Subject: Re: Ecolume Arm Mount fixture
John,
The Emco Ecolume is available with a flat glass lens in full cutoff
distribution with a horizontal lamp.
Karl Fox
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Message: 5
Date: Mon, 28 Jul 2003 14:13:50 -0600
From: "David Penasa" <dpenasa@bplw...>
Subject: New Mexico - Night Sky Office
---------- Forwarded Message ----------
Date: Monday, July 28, 2003 9:40 AM -0600
From:
To: NM_Astronomy List <nm_astronomy@yahoogroups...>
Subject: [NM Astronomy] Night Sky Office
From: "NM Heritage Preservation Alliance"
Subject: Night Sky Office
FOR IMMEDIATE RELEASE, July 23, 2003 CONTACT: Julianne Fletcher 505-
989-7745
SANTA FE, N.M.--Light pollution in New Mexico will soon have a full-
time adversary. The New Mexico Heritage Preservation Alliance's
Executive Director, Julianne Fletcher, today announced the creation
of the Night Sky Office.
Sheila Sullivan will serve as director and plans to take the lead in
developing and advancing programs that work toward eliminating light
pollution. Light pollution is unnecessary glare from electric
fixtures that dims people's view of the stars.
The Night Sky Office will initiate action on issues concerning light
pollution and New Mexico's night sky, and will establish
educational, legislative, informational and outreach efforts to
reverse light pollution in our state, and will promote pristine
night skies, said Sullivan.
Additionally, the office will act as a clearinghouse for counties,
municipalities, homeowners' associations, and other jurisdictional
entities that have existing light regulations or ordinances or are
looking for resources to develop such regulations. A section
dedicated to the Night Sky Office will be added to NMHPA's website
(www.nmheritage.org).
In 1999, The Alliance listed the Night Sky on its Most Endangered
Places list and partnered with other organizations and individuals
to pass the Night Sky Protection Act three months later. State
Representative Pauline Gubbels sponsored the bill, which was signed
into law by Governor Gary Johnson. In 2002, at the request of
NMHPA's Night Sky Committee, Governor Johnson proclaimed August 12
as "New Mexico Dark Sky Appreciation Night" and invited New Mexicans
to "go out and enjoy the night sky." Request for the 2nd annual
proclamation, for August 27th, has been submitted to Governor
Richardson.
Robin Martin, a prominent advocate for protection of New Mexico's
night sky, made establishment of the office possible through a
generous grant.
When Jerry Rogers, president of the Alliance first proposed the idea
that the dark night sky with myriad stars is part of our cultural
heritage, most New Mexicans had not considered the sky in that way.
In announcing this new Office and program, Rogers said, "Without
conscious action, future generations will not experience the night
sky as we and our ancestors have since time immemorial."
For further information, call Sheila Sullivan, Director, Night Sky
Office, 505-466-0085 or Julianne Fletcher, Director, New Mexico
Heritage Preservation Alliance, 505-989-7745.
###
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