Yoshiki,
I was helping my son with Chemistry and the question on his test was "Which has more molecules, a liter of frozen vegetable oil or a liter of liquid vegetable oil. So I reminded him the experiment we did with the balloon and how it contracted when we put it in ice water and expanded when we warmed it up.
Then I thought your Particles Dye in Waterhttp://squeakland.org/showcase/project.jsp?id=7429project and tried resizing the Kedama World (which didn't work) I was able to change the worlds scale. I eventually created two separate Kedama worlds in another project each with 500 turtles and scaled them to convey the idea.
I wanted to make a copy of the Kedama World (two avoid creating the same scripts twice), to show the "Dye in Water" model with different tick rates at the same time to facilitate comparison (which is easier when you can see both at the same time). This idea came from my youngest son who suggested we try the Dye in Water with Ice Water and Hot Water.
So, couple of things:
1. Can you change the size of a Kedama world (w/o changing the size of the turtles?) 2. Just curious why does each edge have its own mode (bouncing, wrap, stick) as opposed to one for all? 3. How can I model the color changes for a Particles in Dye project. I was thinking of something along the lines of having the colors "mix" when the dye and water were in the same spot (or in the other's patch) but wasn't sure how to do that. I assume it has to do with setting the red/green/blue component from/into patch, but couldn't quite figure it out. 4. How can I add an extra turtle to a world? (ex: dye and water)?
Lastly I really love your question: "Is there really such a thing as a molecule? How can we avoid asking you just to believe it?" I have been posing this question to a bunch of folks including some professors at Princeton. Two of the three said something like "that's a really good question, I don't know I've just always believed it" One just got this big smile and said, "its a model and we use experiments to see how well the model works."
Thanks, Stephen
At Sat, 6 Nov 2010 00:40:06 -0400, Steve Thomas wrote:
Yoshiki,
I was helping my son with Chemistry and the question on his test was "Which has more molecules, a liter of frozen vegetable oil or a liter of liquid vegetable oil. So I reminded him the experiment we did with the balloon and how it contracted when we put it in ice water and expanded when we warmed it up.
Then I thought your Particles Dye in Water project and tried resizing the Kedama World (which didn't work) I was able to change the worlds scale. I eventually created two separate Kedama worlds in another project each with 500 turtles and scaled them to convey the idea.
Ah, I'd love to see it.
I wanted to make a copy of the Kedama World (two avoid creating the same scripts twice), to show the "Dye in Water" model with different tick rates at the same time to facilitate comparison (which is easier when you can see both at the same time). This idea came from my youngest son who suggested we try the Dye in Water with Ice Water and Hot Water.
Right now, no. Many internal structure needed to be taken care of and I couldn't go far enough to allow copying, and migrating particles from one world to another, etc.
So, couple of things:
- Can you change the size of a Kedama world (w/o changing the size of the turtles?)
For now, do the following:
- Create a text object and type in:
KedamaMorph new openInWorld
- Just select the "KedamaMorph" part, and press Ctrl-b or Alt-b or Cmd-b you'll see a green window. - Press a little button labeled "class" around the center. - from the top-right pane, choose the element labeled "defaultDimensions" (may be clipped by the scroll bar). - You should see a point expression that looks like:
^ 100 @ 100
Replace it with your favorite numbers like "300@300", and press Ctrl-s or Alt-s or Cmd-s. The red border around the bottom pane go away and you can close the browser window.
- Now, go back to the text object, and select all text ("KedamaMorph new openInWorld") and press Ctrl-d, Alt-d, or Cmd-d.
- Just curious why does each edge have its own mode (bouncing, wrap, stick) as opposed to one for all?
For example, the gas tank example utilize it. the top edge is set to wrap but others are set to bounce.
- How can I model the color changes for a Particles in Dye project. I was thinking of something along the lines of having the colors "mix" when the dye and water were in the same spot (or in the other's patch) but wasn't sure how to do that. I assume it has to do with setting the red/green/blue component from/into patch, but couldn't quite figure it out.
... I have an answer but running out time. Next time I can do it, I'll try to write an example. But unfortunately, the code not going to be pretty. (The effect it makes will be pretty, however^^;)
- How can I add an extra turtle to a world? (ex: dye and water)?
From the menu in the viewr for the KedamaWorld. The button between orange 'v' and blue '+', and choose 'add a new breed of turtle'.
Lastly I really love your question: "Is there really such a thing as a molecule? How can we avoid asking you just to believe it?" I have been posing this question to a bunch of folks including some professors at Princeton. Two of the three said something like "that's a really good question, I don't know I've just always believed it" One just got this big smile and said, "its a model and we use experiments to see how well the model works."
Well, the last one is close to my thinking. We are not going to know the "final truth", but science is a methodology to try to approach it.
-- Yoshiki
I agree with the second scientist and Yoshiki on the last point. We have a lot of convincing evidence that something we call an atom and something called a molecule, etc. exist. For example X-ray diffraction, chemical reactions, the periodic table, atomic energy levels, molecular rotational levels, electron diffraction, etc. We have models for them that explain a lot. We don't know what their underlying reality is (whatever that means).
Randy
Randall Caton 41596 Bald Eagle Drive Bigfork, MN 56628 218-832-3490 Sent from my iPhone
On Nov 6, 2010, at 1:44 AM, Yoshiki Ohshima yoshiki@vpri.org wrote:
At Sat, 6 Nov 2010 00:40:06 -0400, Steve Thomas wrote:
Yoshiki,
I was helping my son with Chemistry and the question on his test was "Which has more molecules, a liter of frozen vegetable oil or a liter of liquid vegetable oil. So I reminded him the experiment we did with the balloon and how it contracted when we put it in ice water and expanded when we warmed it up.
Then I thought your Particles Dye in Water project and tried resizing the Kedama World (which didn't work) I was able to change the worlds scale. I eventually created two separate Kedama worlds in another project each with 500 turtles and scaled them to convey the idea.
Ah, I'd love to see it.
I wanted to make a copy of the Kedama World (two avoid creating the same scripts twice), to show the "Dye in Water" model with different tick rates at the same time to facilitate comparison (which is easier when you can see both at the same time). This idea came from my youngest son who suggested we try the Dye in Water with Ice Water and Hot Water.
Right now, no. Many internal structure needed to be taken care of and I couldn't go far enough to allow copying, and migrating particles from one world to another, etc.
So, couple of things:
- Can you change the size of a Kedama world (w/o changing the size of the turtles?)
For now, do the following:
Create a text object and type in:
KedamaMorph new openInWorld
Just select the "KedamaMorph" part, and press Ctrl-b or Alt-b or Cmd-b you'll see a green window.
Press a little button labeled "class" around the center.
from the top-right pane, choose the element labeled "defaultDimensions" (may be clipped by the scroll bar).
You should see a point expression that looks like:
^ 100 @ 100
Replace it with your favorite numbers like "300@300", and press Ctrl-s or Alt-s or Cmd-s. The red border around the bottom pane go away and you can close the browser window.
Now, go back to the text object, and select all text ("KedamaMorph new openInWorld") and press Ctrl-d, Alt-d, or Cmd-d.
- Just curious why does each edge have its own mode (bouncing, wrap, stick) as opposed to one for all?
For example, the gas tank example utilize it. the top edge is set to wrap but others are set to bounce.
- How can I model the color changes for a Particles in Dye project. I was thinking of something along the lines of having the colors "mix" when the dye and water were in the same spot (or in the other's patch) but wasn't sure how to do that. I assume it has to do with setting the red/green/blue component from/into patch, but couldn't quite figure it out.
... I have an answer but running out time. Next time I can do it, I'll try to write an example. But unfortunately, the code not going to be pretty. (The effect it makes will be pretty, however^^;)
- How can I add an extra turtle to a world? (ex: dye and water)?
From the menu in the viewr for the KedamaWorld. The button between orange 'v' and blue '+', and choose 'add a new breed of turtle'.
Lastly I really love your question: "Is there really such a thing as a molecule? How can we avoid asking you just to believe it?" I have been posing this question to a bunch of folks including some professors at Princeton. Two of the three said something like "that's a really good question, I don't know I've just always believed it" One just got this big smile and said, "its a model and we use experiments to see how well the model works."
Well, the last one is close to my thinking. We are not going to know the "final truth", but science is a methodology to try to approach it.
-- Yoshiki _______________________________________________ squeakland mailing list squeakland@squeakland.org http://lists.squeakland.org/mailman/listinfo/squeakland
On Saturday 06 Nov 2010 10:10:06 am Steve Thomas wrote:
Lastly I really love your question: "Is there really such a thing as a molecule? How can we avoid asking you just to believe it?"
It is not a belief. It is a working assumption. A belief is something that one holds all the time. A working assumption is something that we hold to be true within a context. One can posit an atom to be a particle in one context and a wave in another. It does not have to 'exist'.
Subbu
squeakland@lists.squeakfoundation.org