[meteorite-list] meteorite-list] Scale Cubes
Shawn Alan
photophlow at yahoo.com
Mon Mar 15 06:28:39 EDT 2010
Hi Richard, List
You just prove my point I was making with by changing the orientation cube size scale from cm to inches or to feet if you will from your statement....
"Now the example you cite is ambiguous. I have no way of knowing if it is a 1-cm cube or some other dimension because there is no scale on the scale cube. That is my gripe. For a scale cube to be truly useful it has to have the scale visible on it."
Richard that is true, the cited image is ambiguous and that's why I cited it, but again, the cm could be branded on a different side, and the side that was chosen was the T side for top, that's why the cube is set up that way :). Also, We all know from when we see an orientation cube its rated at 1cm, a standard that has been done for awhile for referencing scale to an object with orientation cubes. Without keeping this scale uniform it makes orientation cubes useless with the other sides that don't have the cm scale in printed on it which can cause confusion.
Here are samples on eBay of orientation cubes used to give people perspective for scale.
http://cgi.ebay.com/NWA-XXXX-METEORITE-BLACK-CRUSTED-INDIVIDUAL-378-GRAMS_W0QQitemZ280478298335QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item414dcf30df
http://cgi.ebay.com/meteorite-ataxite-DRONINO-COMPLETE-slice-44-8-gr_W0QQitemZ150423645810QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2305f2ae72
http://cgi.ebay.com/Gao-Guenie-Oriented-Meteorite-17g-Individual_W0QQitemZ150423478353QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2305f02051
http://cgi.ebay.com/Campo-meteorite-etched-part-slice-18-5-grams_W0QQitemZ170458836710QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item27b0236ee6
http://cgi.ebay.com/Davy-A-Meteorite-L4-Chondrite-1940-Texas-USA_W0QQitemZ260568380216QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3cab15f338
http://cgi.ebay.com/Meteorites-ALH-A76009-NWA-4734-NWA-5511-Lot_W0QQitemZ150423073194QQcmdZViewItemQQptZLH_DefaultDomain_2?hash=item2305e9f1aa
All these cubes are cm cube and some don't show the cm scale and one doesn't have any marking, but because there is a standard used with orientation cubes we know that the cube is a 1CM :)
Shawn Alan
[meteorite-list] meteorite-list] Scale Cubes
Richard Kowalski damoclid at yahoo.com
Mon Mar 15 05:12:34 EDT 2010
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"Standard"
I may be mistaken, but has there be a standard set?
AFAIK, these are scale cubes, not standard cubes.
Now the example you cite is ambiguous. I have no way of knowing if it is a 1-cm cube or some other dimension because there is no scale on the scale cube. That is my gripe. For a scale cube to be truly useful it has to have the scale visible on it.
I really don't care of the actual size of a scale cube as long as the scale is visible in the image.
For the Count's find (which I can say I'm green with envy about. Nice job Count!) A 1 cm cube would be, in my opinion too small a 1 decimeter cube, clearly marked as such, would be much more appropriate.
I made the comment to Jeff Kuygen in a private email that a 1 meter scale cube would make more sense for a Hoba sized meteorite. Usually we use people to show the scale of this iron in situ. Can you imagine how ridiculous it would be to try to use a 1-cm scale cube to show Hoba's scale?
No. Scale cubes show scale and the scale needs to be appropriate to the object.
Cheers
--
Richard Kowalski
Full Moon Photography
IMCA #1081
--- On Mon, 3/15/10, Shawn Alan <photophlow at yahoo.com> wrote:
> From: Shawn Alan <photophlow at yahoo.com>
> Subject: [meteorite-list] meteorite-list] Scale Cubes [WAS: Ad Announcing the "Count" cube Scale / Orientation cube]
> To: meteorite-list at meteoritecentral.com
> Date: Monday, March 15, 2010, 1:59 AM
> Richard Listers
>
> Hi when you have a chance click on this link on eBay
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280478300077&ssPageName=STRK:MEWAX:IT
>
> It looks like this could be one of Tims cm wood cubes
> (might I add I like the cm wood cubes he has done)? Well
> that is what I would assume that its a cm cube because that
> has been the set standard I have seen day in and day out
> with orientation cubes. Now for argument sake, lets say
> its a inch cube and the only reference I can go off of is
> only the image and the cube with the T on it. By default,
> I would assume its a cm size cube because that has been the
> set standard. But in actuality its the inch cube, or who
> knows, it could be 2.5 inch cube or 1.3 inch cube or a foot
> cube.
>
> Now this can cause some confusion when people use
> orientation cubes as a set standard for scale. When the
> scale changes in size the orientation cube has no use now
> when a new size is introduced or sizes. I like that he made
> the inch cube in celebration for Counts big find. I think it
> would have been more fitting and fun if he also branded the
> wooden cubes to say The Count Cube on every side to
> distinguish it from his cm wood cubes that he sells.
>
> What might happen is people might take the inch cube
> and use it as an orientation cube scale and this could
> cause confusion if you cant see the inch etched on one
> side in the cube because all of the other orientation cubes
> I have seen are cm, the standard that has been used. And
> also to take in consideration not all bidders on eBay are
> members on the Meteorite Central List.
>
> Shawn Alan
>
>
> [meteorite-list] Scale Cubes [WAS: Ad Announcing the
> "Count" cube Scale / Orientation cube]Richard Kowalski
> damoclid at yahoo.com
> Mon Mar 15 04:32:25 EDT 2010
>
>
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>
> Shawn, Matt,
>
> If I'm not mistaken, the scale cube was invented
> specifically for the lunar samples brought back by the
> Apollo missions.
>
> Obviously, the idea behind using a scale cube is just that,
> to show the scale of the object in the photograph.
>
> I agree that for good scientific reasons, a scale cube in
> some metric measurement makes the most sense. A cubic
> centimeter is most common, but why not a cubic decimeter or
> a cubic meter, if those are appropriately sized for the
> object? I have no problem with any sized scale cube as long
> as the dimension is clearly marked and visible in the
> photograph. 1-cm, 1 inch, no matter. There is no "standard"
> so to speak. The key is to use something of the appropriate
> scale for the object being photographed...
>
> I have no objection to using other objects too, again as
> long as they are easily identifiable. I might not know what
> the coin is, if one is being used for scale, but I
> immediately have a general idea how big is probably is. As
> long as I can unambiguously identify it in the photograph,
> that's all I need. If the image is poor and I can't
> determine exactly what coin it is, much less the country of
> origin, much of the value of using that coin for scale is
> lost.
>
> Most car keys are about the same size and have been for a
> very long time... Put them next to your rocks. I'll have
> some idea how big they are.
>
> Something that REALLY bothers me is something ambiguous,
> like dice. They all look the same and come in many different
> sizes. Even the standard ones have no markings that tell you
> they are standard size, or some other size. If you see them
> in a photograph, is it a standard die, a small one from a
> board game or is it a huge novelty die from a game show??
>
> I can assume it is a standard die or close to it and get a
> general scale of the object. The same goes for the plastic
> 1-cm cubes you see in photos that have no scale marked on
> them. By the weight of the object you can guess the cube is
> 1-cm, but it's really a bad idea not to include the actual
> size of your scale on your scale object, no matter what size
> it is!
>
> Cheers
>
> --
> Richard Kowalski
> Full Moon Photography
> IMCA #1081
>
>
>
>
>
>
>
>
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