sci.astro.ccd-imaging
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Re: What are these white dots on a lunar photo?

Subject: Re: What are these white dots on a lunar photo?
From: David Nakamoto <david.nakamoto@xxxxxxxxxxx>
Date: Mon, 25 Dec 2006 17:28:03 GMT
Newsgroups: sci.astro.ccd-imaging
Yup, people don't realize how dangerous human touch is to certain materials. We're slightly acidic(?) so anything we touch is going to get a dose of etching acid, and then the disintegration sets in.

So during the holidays, be careful of that handshake or your palm may melt away, or that hug lest your clothing disintegrate, or heaven forbid, kissing; God Knows what bugs are sitting there patiently on that person's lips, just waiting for the next ride to hitch on to come by. (^_^)

   --- Dave

Pat wrote:
Yep, sorry to have to agree. Great pictures but whoever handled this material
needs a head modification - like a head removal??
If you want to be kind to him/her, buy a box of linen gloves for them.
Note that the skin oils of some people are able to etch most things - in some cases, even stainless steel!

"reconair" <reconair@xxxxxxxxxxxx> wrote in message news:12ouhort0mn54e7@xxxxxxxxxxxxxxxxxxxxx
They're finger prints on the negative.

Scott
<zerge@xxxxxxxxxxx> wrote in message news:1167000275.090376.297660@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
http://www.lpi.usra.edu/resources/lunar_orbiter/bin/info.shtml?223

Click on the picture. There's a lot of white dots which are clearly
some
sort of noise on the film. Does anybody know why these imperfections
appear?




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