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Index of Subjects --Apple-Mail-6--65023368 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Hello all: I suspect that is the case. Keep in mind that, as Sherman noted, one can look at the Sun and damage your eyes on any sunny day. Of course, most days there is no particular reason to look at the sky and even if you did, the brightness would tend to make this a self-correcting problem! Pat On Feb 22, 2008, at 2:45 PM, David & Alison Webster wrote: > Hi Sherman & All, > Is this perhaps because the iris adjusts somewhat to average light > intensity and is consequently dangerously open with respect the bright > arc of the nearly covered sun ? > Yt, DW > > Sherman Williams wrote: > >> >> THE BIG DANGER is just before and just after totality, when the Sun >> not fully covered by the Moon. In those moments sunlight coming >> from the uncovered edges appears to be dim enough that it would not >> seem to be harmful, however, in a few moments of direct gazing at any >> uncovered portion of sun can deliver enough INFARED TO DO DAMAGE to >> the retina. The MOST DANGEROUS TIME to gaze at the Sun would be any >> normal sunny day, especially at noon when we are receiving its most >> potent rays (radiation). >> >> >> Sherman >> >> >> >> Sherman Williams >> >> shermw@xcountry.tv <mailto:shermw@xcountry.tv> >> >> > > > ======================================================================== == Patrick Kelly Director of Computer Facilities ======================================================================== == Faculty of Architecture and Planning Dalhousie University ======================================================================== == PO Box 1000 Stn Central 5410 Spring Garden Road Halifax, Nova Scotia B3J 2X4 Halifax, Nova Scotia B3J 2X4 Canada Canada ======================================================================== == Phone:(902) 494-3294 FAX:(902) 423-6672 E-mail:patrick.kelly@dal.ca ======================================================================== == --Apple-Mail-6--65023368 Content-Transfer-Encoding: 7bit Content-Type: text/enriched; charset=US-ASCII Hello all: I suspect that is the case. Keep in mind that, as Sherman noted, one can look at the Sun and damage your eyes on any sunny day. Of course, most days there is no particular reason to look at the sky and even if you did, the brightness would tend to make this a self-correcting problem! Pat On Feb 22, 2008, at 2:45 PM, David & Alison Webster wrote: <excerpt>Hi Sherman & All, Is this perhaps because the iris adjusts somewhat to average light intensity and is consequently dangerously open with respect the bright arc of the nearly covered sun ? Yt, DW Sherman Williams wrote: <excerpt> THE BIG DANGER is just before and just after totality, when the Sun not fully covered by the Moon. In those moments sunlight coming from the uncovered edges appears to be dim enough that it would not seem to be harmful, however, in a few moments of direct gazing at any uncovered portion of sun can deliver enough INFARED TO DO DAMAGE to the retina. The MOST DANGEROUS TIME to gaze at the Sun would be any normal sunny day, especially at noon when we are receiving its most potent rays (radiation). Sherman Sherman Williams shermw@xcountry.tv <<mailto:shermw@xcountry.tv> </excerpt> </excerpt><fontfamily><param>Courier</param> ========================================================================== Patrick Kelly Director of Computer Facilities ========================================================================== Faculty of Architecture and Planning Dalhousie University ========================================================================== PO Box 1000 Stn Central 5410 Spring Garden Road Halifax, Nova Scotia B3J 2X4 Halifax, Nova Scotia B3J 2X4 Canada Canada ========================================================================== Phone:(902) 494-3294 FAX:(902) 423-6672 E-mail:patrick.kelly@dal.ca ========================================================================== </fontfamily> --Apple-Mail-6--65023368--
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