[meteorite-list] Since Scale Cubes are a topic today

From: Delbert Waterbury <paseclipse_at_meteoritecentral.com>
Date: Thu, 8 Nov 2007 16:26:48 -0800 (PST)
Message-ID: <480843.73959.qm_at_web51304.mail.re2.yahoo.com>

Yeah I guess it would be nice to have a 3D laser
scanning machine to scan all my meteorites into.
However I don't have a few hundred thousand dollars
(or maybe millions) to spend right now on something
like this. So I'll have to settle for the next best
thing (and the cheapest) using my very own scale cube
I paid 25 bucks for.

Either way, I think the scale cube is excellent for
figuring out the "general size" of an object in a
photograph. It's better than using a coin because you
get that third dimension that coins lack.

Del


--- "Sterling K. Webb" <sterling_k_webb at sbcglobal.net>
wrote:

> Hi,
>
> Matthias said the introduction of the scalecube
> into the natural scene is the insertion of the
> Absolute,
> the Platonic Ideal. Yes, true, and, as such, tells
> us so
> much more about the beings making the photograph
> than it does about the object being photographed.
>
> As for using scalecubes as a basis for
> measuration,
> you can utilize an existing arsenal of projective
> geometric
> calculation in a pinch. But, if what you wanted from
> the
> start was measurement, you would photograph
> everything
> by placing it inside a half cube -- floor, back, and
> side --
> that was white and gridded off in your choice of
> units
> (centimeters, inches, or the 60th part of a
> Babylonian
> cubit), and shooting it at different orientations
> (6). It
> would then be medium easy to use a computer
> algorithm
> that would convert the images to measurements or a
> 3D
> model in a few teraflops.
>
> This is what should be done with meteorites (and
> "Moon Rocks," and pieces of UFO's if you got'em).
> Then, instead of pictures of the Meteorite of the
> Day,
> we would have the virtual object of the Meteorite of
> the Day. It wouldn't be scientifically useless to be
> doing
> that with important pieces even today.
>
> Maybe, scalecubes are just more Fun? Cooler?
>
>
> Sterling K. Webb
>
-------------------------------------------------------------------
> ----- Original Message -----
> From: "David & Kitt Deyarmin" <bobadebt at ec.rr.com>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Thursday, November 08, 2007 4:19 PM
> Subject: [meteorite-list] Since Scale Cubes are a
> topic today
>
>
> I'm going to have to disagree with you.
>
> Another hobby I have is making replicas of props
> from various science
> fiction movies
>
> I have used photos to reverse engineer parts and
> have done so with amazing
> accuracy
>
> A perfect example is an MG-81 Flash Hider/ Booster
> that was use on Han
> Solo's "Blaster" from Star Wars.
>
> This part went unidentified for 26 years but I and a
> small group of
> hobbyists created and manufactured replica of this
> part from the various
> available photos.
>
> About 3 years ago, it was finally identified and a
> mint specimen was found
> and borrowed, they have a value of about $3000 so we
> were lucky the guy let
> use it.
>
> To even my own surprise my Flash Hider was
> surprisingly accurate to the real
> thing.
>
> Here is a picture, the real prop is on top and my
> replica is on the bottom
>
>
http://i131.photobucket.com/albums/p298/BobaDebt/Flashhiders.jpg
>
> Bear in mind that this is just one image of a single
> prop, they used a
> variety of props and each had variances in the
> parts. For instance in the
> above picture the holes are look smaller but there
> are other pictures that
> they look bigger.
>
> However, when I compared my replica to a real MG-81
> Flash Hider most of my
> measurements were off by less then .005" of an inch
> which is pretty good.
>
>
>
>
---------------------------------------------------------------------------------
>
>
> Hi, All
>
> Measurement from a photo with a scalecube in it is
> impossible except in the
> case of a very elaborate photo setup designed to
> make such measurements
> possible and even then, the precision is low. aying
>
> Sterling K. Webb
>
>
>
---------------------------------------------------------------------------------
>
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>
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>
>
>


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Received on Thu 08 Nov 2007 07:26:48 PM PST