Re: [Utah-astronomy] Patch Springs fire aerial shot
Well, don't stare at the sun, regardless. Even when the smoke is dense enough to turn it deep red, I suspect it still can inflict eye damage. And that includes looking through a viewfinder. (And I suspect it could damage a camera with an electronic viewfinder.) -- Joe ------------------------------ On Thu, Aug 15, 2013 2:27 PM MDT Chuck Hards wrote:
The wind shifted and the smoke is blowing north now. The GSL is completely covered with smoke. Leaving work this afternoon, as I got onto I-215 at the south end of the Legacy Parkway, the road was high enough to let me peek into the Tooele valley. It looks like it's filled with smoke.
I suspect the fire abated a bit over night thanks to the cooler temps, but as of 2:30 this afternoon, there is more smoke than ever.
We may get another deep red sun and moon tonight.
On Thu, Aug 15, 2013 at 11:57 AM, <jcarman6@q.com> wrote:
This morning no plumes of smoke over the Oquirhs. Is the fire out?
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OK, mom. Who are you talking to? On Aug 15, 2013 2:36 PM, "Joe Bauman" <josephmbauman@yahoo.com> wrote:
Well, don't stare at the sun, regardless. Even when the smoke is dense
enough to turn it deep red, I suspect it still can inflict eye damage. And that includes looking through a viewfinder. (And I suspect it could damage a camera with an electronic viewfinder.) -- Joe
On 15 Aug 2013, at 14:34, Joe Bauman wrote:
Well, don't stare at the sun, regardless. Even when the smoke is dense enough to turn it deep red, I suspect it still can inflict eye damage. And that includes looking through a viewfinder. (And I suspect it could damage a camera with an electronic viewfinder.) -- Joe
Like Joe and Chuck and everyone else here who have commented, I too am always careful to stress the importance of safety when observing our home star. However, a while about I came across the following that pretty well refutes everything I've ever heard on the subject. I'm still going to continue to stress safety but I'd like to hear some thoughts from the folks here about this: Galileo, solar observing, and eye safety http://mintaka.sdsu.edu/GF/vision/Galileo.html The author notes he is an astronomer and not an ophthalmologist but a couple of the people he sites do have MDs and PhDs appropriate to the discussion. ??? patrick
First, I don't base my concerns on any false story about Galileo. I thought Galileo used a technique that projected the image of the sun on a piece of paper, from which he could draw. That's a strange way to start the discussion, setting up the Galileo straw man. The part that is most important is where he says, "Normal people just don't get eye damage from looking at the Sun; the average person looks away when the Sun is “too bright to look at,” and exposure for a few seconds does not seem to be sufficient to damage most eyes — though some people may be unusually susceptible to this kind of injury" This is what I tried to say: don't stare at the sun. What about our long-held concerns and often-repeated warnings does he contradict? Nothing. With permanent eye damage possible, it's just stupid to take a risk. -- Joe ________________________________ From: Patrick Wiggins <paw@wirelessbeehive.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Thursday, August 15, 2013 9:25 PM Subject: Re: [Utah-astronomy] Patch Springs fire aerial shot On 15 Aug 2013, at 14:34, Joe Bauman wrote:
Well, don't stare at the sun, regardless. Even when the smoke is dense enough to turn it deep red, I suspect it still can inflict eye damage. And that includes looking through a viewfinder. (And I suspect it could damage a camera with an electronic viewfinder.) -- Joe
Like Joe and Chuck and everyone else here who have commented, I too am always careful to stress the importance of safety when observing our home star. However, a while about I came across the following that pretty well refutes everything I've ever heard on the subject. I'm still going to continue to stress safety but I'd like to hear some thoughts from the folks here about this: Galileo, solar observing, and eye safety http://mintaka.sdsu.edu/GF/vision/Galileo.html The author notes he is an astronomer and not an ophthalmologist but a couple of the people he sites do have MDs and PhDs appropriate to the discussion. ??? patrick _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
I would like to hear alternate theories on way my right eye developed a cataract and my left eye is great. I used my right eye 95% of the time for solar viewing.
Erik On 15 Aug 2013, at 14:34, Joe Bauman wrote:
Well, don't stare at the sun, regardless. Even when the smoke is dense enough to turn it deep red, I suspect it still can inflict eye damage. And that includes looking through a viewfinder. (And I suspect it could damage a camera with an electronic viewfinder.) -- Joe
Like Joe and Chuck and everyone else here who have commented, I too am always careful to stress the importance of safety when observing our home star.
However, a while about I came across the following that pretty well refutes everything I've ever heard on the subject.
I'm still going to continue to stress safety but I'd like to hear some thoughts from the folks here about this:
Galileo, solar observing, and eye safety http://mintaka.sdsu.edu/GF/vision/Galileo.html
The author notes he is an astronomer and not an ophthalmologist but a couple of the people he sites do have MDs and PhDs appropriate to the discussion.
???
patrick _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy
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participants (4)
-
Chuck Hards -
Erik Hansen -
Joe Bauman -
Patrick Wiggins