black sand

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From: MC elover (mcelover@yahoo.com)
Date: Tue Jan 11 2000 - 12:41:30 PST 

Message-ID: <20000111204130.3951.qmail@web906.mail.yahoo.com>
Date: Tue, 11 Jan 2000 12:41:30 -0800 (PST)
From: MC elover <mcelover@yahoo.com>
Subject: black sand

hello pinholers

i once heard of a nice way to get the black magnetic
sand out of the sand from ocean beach. any
suggestions?

--eric

p.s. thanks for all the replies on the stereoscopic
slide show question. as it turns out, you need a
"silver" screen in order for your polarized light to
bounce back polarized. some screens are silver, some
not. i checked mine with a flashlight shining through
one polarizer onto the screen and looking through and
rotating another ..... ta da!! my screen is silver!
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