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[DSLF] Digest Number 655
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There are 8 messages in this issue.
Topics in this digest:
1. Re: wattages
From: Steve Davis <w2sgd@juno...>
2. Re: Covenant ideas?
From: Steve Davis <w2sgd@juno...>
3. Re: Evaluation of gas station canopy lighting
From: "ctstarwchr" <ctstarwchr@aol...>
4. Re: Re: wattages
From: Yvan Dutil <yvan.dutil@sympatico...>
5. Re: Digest Number 652
From: Yvan Dutil <yvan.dutil@sympatico...>
6. Re: Covenant ideas?
From: Scott Griswold <griz@lightfromabove...>
7. Article on Flagstaff
From: Steve Pauley <spauley@cox-internet...>
8. Re: Covenant ideas?
From: "P. Edward Murray" <edward12@comcast...>
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Message: 1
Date: Sat, 27 Apr 2002 08:04:05 -0400
From: Steve Davis <w2sgd@juno...>
Subject: Re: wattages
From: "Terry McGowan" <lighting@ieee...>
> Recall the "blue dot" tail lights that are sold as
> add-ons for cars.
Never see them. I guess I'm either lucky or haven't
missed anything. How about those blue running board
lights on wanna be hot rods? Those yellow or amber
rear turn signals are eyeball killers. -sd
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Message: 2
Date: Sat, 27 Apr 2002 08:05:27 -0400
From: Steve Davis <w2sgd@juno...>
Subject: Re: Covenant ideas?
James Benya wrote:
> The Sunriver development in Eastern Oregon has an excellent CC&R that
is
> enforced restricting against direct glaring and upwards light. The
place is
> darned pleasant at night - you astronomers would love it. Contact the
> Sunriver resort for starters.
Any sites left? Just think, everybody has a 18" scope,
and the neighborhood watch is actually a star party. :)
Safety in numbers! -sd
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Message: 3
Date: Sat, 27 Apr 2002 14:44:09 -0000
From: "ctstarwchr" <ctstarwchr@aol...>
Subject: Re: Evaluation of gas station canopy lighting
--- In DarkSky-list@y....., "Bill & Michelle Bahus" <thebahuses@s.....>
wrote:
> How about uploading it to the files area?
Rensselear has it on their website at:
http://www.lrc.rpi.edu/Projects/canopy.PDF
Clear skies,
Cliff Haas
http://members.aol.com/ctstarwchr
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Message: 4
Date: Sat, 27 Apr 2002 12:33:46 -0400
From: Yvan Dutil <yvan.dutil@sympatico...>
Subject: Re: Re: wattages
I still have a peripheric vision in broad daylight. However, at that light level
all the rod are bleached. Periferal vision comes from the canoes that are
concentrated in the feova but their distribution extend all over the eye.
Yvan Dutil
James Benya a écrit :
> Your comments about pupils and visual response are akin to Berman's work.
> Berman, however, does not agree with you when it comes to low mesopic and
> scotopic vision.
>
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Message: 5
Date: Sat, 27 Apr 2002 12:37:58 -0400
From: Yvan Dutil <yvan.dutil@sympatico...>
Subject: Re: Digest Number 652
James Benya a écrit :
> Diffusion and refraction (bending) are related concepts. What bends more
> (refraction) also diffuses more.
That's false. Diffusion is produce by a spatial variation of the index of
refraction.
And differential refraction depend of teh variation of the index of
refraction
with the wavelength. It depends on the material properties and change with
the wavelenght. Some materials present very little chromatism.
Yvan Dutil
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Message: 6
Date: Sat, 27 Apr 2002 12:11:52 -0400
From: Scott Griswold <griz@lightfromabove...>
Subject: Re: Covenant ideas?
> From: "ncdarkskyman" <Dan@Caton...>
> Subject: Covenant ideas?
>
> I have a developer who is building a 100-acre mountainside
> development, with 15-20 large lots and wants to have a covenant to
> protect the night sky. Is anyone aware of a good covenant posted on
> the web somewhere to model on? This will nave NO street lighting--he
> wants to protect against obtrusive house entrance/facade, "security"
> etc. lighting.
Dan,
Try contacting the Harmony Institute in Florida.
http://www.harmonyinstitute.org
As part of their Community Design program they promote the use of
DarkSky and Energy Star products.
Here is a link directly to their "Contact" form:
http://www.harmonyinstitute.org/contactForm.html
I have spoken via e-mail with chairman Martha Lentz. She tells me
"that in addition to the public lighting conforming to dark sky
standards, lighting within private property
will have the same requirements."
You can visit the web page for the Town of Harmony, FL. Here:
http://www.harmonyfl.com
I hope this information is of help to you. Good luck in your ventures.
Peace & Dark Skies,
Scott Griswold
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Message: 7
Date: Sat, 27 Apr 2002 16:48:21 -0600
From: Steve Pauley <spauley@cox-internet...>
Subject: Article on Flagstaff
Don't know if this was posted yet.
"Afield" the magazine of the Orion Society, Spring 2002,
has a nice article on Flagstaff and Chris Luginbuhl.
Great job by Chris and the citizens of Flagstaff!
All the Stars in the Sky
Combatting Bad Lighting in Flagstaff and Beyond
by Peter Friederici
Lots of light spills wasted into the night sky, confusing
migrating animals and obscuring the stars. How can we dim
these thousand points of light pollution.
http://www.orionsociety.org/pages/oa/index_oa.html
Steve P
[Non-text portions of this message have been removed]
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Message: 8
Date: Sat, 27 Apr 2002 19:47:47 -0400
From: "P. Edward Murray" <edward12@comcast...>
Subject: Re: Covenant ideas?
V unir.....?
English Please!
Ed
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