[PPRAANet] Use welder helmets for welding

[Glenn]

GREAT information but now that the eclipse is over, I don't think many 
will be looking up at the sun! Don't know if you
posted this prior to the eclipse and it took this long to make it or 
what. Regardless excellent info!!

      Glenn  n3ulw


On 8/22/2017 9:36 AM, Paul Signorelli wrote:
> Safe solar viewing can be done with welders glass of sufficiently high number. The only ones that are safe for direct viewing of the Sun with your eyes are those of Shade 12 or higher. These are much darker than the filters used for most kinds of welding. If you have an old welder’s helmet around the house and are thinking of using it to view the Sun, make sure you know the filter’s shade number. If it’s less than 12 (and it probably is), don’t even think about using it to look at the Sun. Many people find the Sun too bright even in a Shade 12 filter, and some find the Sun too dim in a Shade 14 filter — but Shade 13 filters are uncommon and can be hard to find.
>
> The welders glass doesn't block enough of the IR (Heat).
>
> Paul    w0rw
>
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