Algodoo

Thanks. Now I can sing the "Making Science" song in my head when I make new scenes.

Q: We make a great team, don't we?
A: Yes. I like it when somebody takes a scene and goes one "step" further.

Nice work. For some reason "Walking on Sunshine" is playing in my head when I watch this scene.

You can improve the performance by pasting the following code in the laser script input boxes:

sim.frequency = 100.0;
postStep := (e)=>{};
update := (e)=>{};
maxRays := 1;
onLaserHit := (e)=>{
e.geom.materialName != "outline" ? {
Scene.addCircle({
pos := e.pos;
radius := 0.029999999;
density := 2.0000000;
collideSet := 1;
materialName := "outline";
timeToLive := 0.0099999998;
drawBorder := false;
color := [1.0000000, 1.0000000, 1.0000000, 1.0000000];
drawCake := false;
heteroCollide := false;
glued := true;
body := 0
})
} : {}
};

An interesting variation is to change the pin onCollide event as follows"

color == _red ? {
color = _clear;
scene.my.score = scene.my.score + 100
} : {};
color == _black ? {
color = _clear;
scene.my.score = scene.my.score + 10
} : {
color = _black
}

I suggest do not change the uploaded scene. The code variation was presented as something to play around with but not necessarily save. There is no need to respond to this comment since it would probably take more time to respond than to try out the code and it's understood that you will try the code out if and when you feel like it.

Nice work as usual. I was hesitant to stack the wooden box on the cardboard boxes, but it looks like they can take it. I can also stack the cardboard box pallet on the wooden box pallet, but that takes much more effort (unless there is some trick to it).

Q: why pictures does not changed .after updating
A: You need to reload the current page (Ctrl-R on my browser).

Thanks Xray.

Drawing with Sound (Oscilloscope Music)

Thanks. It's very gracious of you to say that seeing that it's mostly your idea and code.

Your suggestion sounded good so I used it. It was hard for me to detect any difference in response.

Nice work.

Flames are cool. Good thing Bob's seat has a spring or Bob might end up with back problems.

Xray,

Thanks for trying it out.

Q: Apparently, the color OR the texture can be altered, but not both. Is that how you intended it?
A: No. Color AND texture change works for me. I can add color to Homer and it picks and fills both color AND texture OK.

Statement: ...separately change both the color AND the texture...desirable.
Response: I assume you mean something along the lines of having color and texture check boxes. I figured that transferring both would work in the majority of cases since most textured objects don't have color and vice versa. I will consider it.

Q: Did you know about that?
A: Yes AND no. Yes, I did notice that refractive index does not show up in the material panel unless there is a laser. No, I didn't know that refractive index is always on the script menu.

Thanks Xray.

You're right. Thanks. I didn't transfer textures when creating geometries. I will fix that. Meanwhile, you can add the texture after the fact by using the paint can.

Nicely done nikol. Now tell us how you did it.

OK, I'm impressed. I understand and believe most of what you are saying, except for "It is simple.". If I understand correctly the process works like this:
1. Get a drawing in the form of discrete equally spaced values.
2. Do a DFT on the drawing.
3. Take the resulting list of frequency, phase, and amplitude values and convert each item into motor speed, initial angle, and link length.
4. Connect all the links together.
5. Put a tracer on the end of the last link.

I'm not sure how the DFT works with lines that reverse in the x (or time) direction, but I guess that all just works out.

By the way: I've programmed in Python and find it to be the most straightforward and concise language.

Yes kids, don't do street drugs or you might come home and make an Algodoo scene like this one.

Q: Do you speak from experience?
A: No, do you?

I've done drugs (alcohol) before and I've found that it has never improved any situation I was in at the time.

Nice work. I don't understand why this is in the "Marble & Athlons & BFDI & Camps" group unless it's there as an example of what can be done instead of marble races etc..

Thanks Xray. Even though this type of scene has a limited audience, I still somehow feel compelled to make them. And even after all these years of playing with Algodoo, I'm still impressed with the power of Algodoo to solve Engineering problems.

Q: Is there a script that chooses randomly "yes", "maybe", "no"?
A: Maybe, but it may be easier to create one than to find one. You can search the forum for "Random number generator in Thyme" for starters. I'm not going to write one for you because that's your job.

Thanks Xray.

The Linkage ,

Regarding "Better hope nobody designs bridges with this", if the assumption is that Algodoo is not accurate enough, you may be wrong. If the assumption is that I made a mistake somewhere, you may be right. Regarding accuracy, I compared results with those found on Free Beam Calculator and found that the results agreed within 1% with the the exception of the moments and stress which were within 2%. The main limitations to accuracy are the hinge spring constant (1E+08) and the fact that the beam is segmented. Errors due to these two sources are limited and quantifiable. I could provide an error estimate with the results, but I won't be doing that today. I suspect that most bridge designers these days use Finite Element Analysis (which is a much more elaborate version of what I am doing in this scene). This scene should be OK for hobbyists, Engineering students, and Engineers in non life-threatening applications.

Nice work. I've used resistor substitution boxes before, but never knew how the switch worked. I agree that the switch is a very clever mechanical and electrical design. From a manufacturing standpoint, it's easier to stock two resistor values than nine. I like your circuit path tracing tool. Congratulations on being the first person in Algobox to completely fill the Description box.

I concur.

Nice work. Weird not weired.

Quote: the newly spawned water drops at the nozzles have little to no radial velocity.
Response: The radial velocity is now 5 m/s was 1 m/s. The right sprinkler drops have a radial velocity of 15 m/s. Code is in invisible boxes on the sprinkler tubes.