Re: [ATM] Off Topic Viewing sun with polarized material

[Guy Brandenburg <gfbrandenburg@yahoo.com>]

A normal sextant has a half-silvered mirror in it so's
the user can match the sun to the horizon. Or at least
that's the way I understand it. I ahve a broken one
somewhere in my classroom, but have never yet used it.
It lacks the half-mirror completely.
Guy B
--- dave g <omegacent@yahoo.com> wrote:

> G'day Wayne,
>  
> > I have obtained a Davis instruments sextant......I
> have thought about
> > taking the polarized lenses out of sunglasses and
> placing them in front
> > of each other rotated for maximum loss of light.
> > Would this be safe for viewing the sun?
>  
> Er, NO.  Don't do this.  NO.NO.NO.
>  
> Better to get some Baader Solar filter material,
> available from many sources.   You can buy a sheet
> of A4 for $25 and make a filter for your scope,
> binoculars and use the offcuts for your sextant.
> 
> Regards
>  
> Dave
> http://users.tpg.com.au/daveg/
>  
> 
> 		
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=====
Guy  Brandenburg
Washington, DC
My home page:
http://home.earthlink.net/~gfbranden/GFB_Home_Page.html
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