Yep... Richard and I both agreed that we want a specimen where a 1m cube is
needed! ;-)
It's a personal thing really. 1cm has become the standard but 1inch has been
used in the past. As long as it is clear I guess it does not matter too
much. I personally prefer the 1cm cubes but Australia also switched to
metric long before I was born so that's what I have also known. Here's a
couple of interesting (and very nice) pics of two spectacular ~33kg
individuals using a 1cm cube.
http://www.fallingrocks.com/Collections/NWA5439.htm
http://www.meteorite-recon.com/en/Meteoritensammlung.htm
For those wanting an update on my WC cubes there is a new prototype under
way. I'll have to see how it goes before I know anything more.
Cheers,
Jeff
----- Original Message -----
From: "Richard Kowalski" <[email protected]>
To: <[email protected]>
Sent: Monday, March 15, 2010 8:12 PM
Subject: Re: [meteorite-list] meteorite-list] Scale Cubes
"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 <[email protected]> wrote:
From: Shawn Alan <[email protected]>
Subject: [meteorite-list] meteorite-list] Scale Cubes [WAS: Ad Announcing
the "Count" cube Scale / Orientation cube]
To: [email protected]
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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