13 Mar
2003
13 Mar
'03
2:05 a.m.
S&T Says that it is. --- Patrick Wiggins <paw@trilobyte.net> wrote:
Greg Taylor wrote:
I just picked up some #13 Welder's glass. The spot
is
very easily seen naked eye. I need to get a solar filter for one of my scopes.
I don't know that a #13 is safe. #14 is the only one I've heard is safe.
http://sunearth.gsfc.nasa.gov/eclipse/SEhelp/eclipsePhoto.html#Safety
Patrick
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