Algodoo

Nice work.

I enjoy watching "Technology Connections" videos. He does a good job explaining stuff. I have the toaster explained in The Antique Toaster that's Better than Yours.

Suggestion:
Side fumbling can be effectively prevented by using six hydrocoptic marzlevanes.

STURGEON GENERAL'S WARNING: This scene may cause slight discomfort (terrifying screaming nightmares, bed wetting) in young viewers.

My excuse: I can't help myself and lack self-control.

Anyhow, I realize suggestions are just suggestions. I don't cry for too long if they are not implemented.

Nice effect. Reminds me of YouTube bar chart videos on how the world is changing.

Well done.

OK, I've stopped crying.

Yes, and they should definitely learn about hydrocoptic marzlevanes.

Thanks for your continued support and encouragement.

As a player, this is my expectation:
Play starts with you (yellow). Play label is black text on yellow background. Die is shown. Equation is hidden.
You click on die. Die is dimmed and equation is shown in black text on yellow background.
If you get equation correct then you move forward die number places.
My (blue) turn. Play label is white text on blue background. Die is shown. Equation is hidden.
I click on die. Die is dimmed and equation is shown in white text on blue background.
If I get equation correct then I move forward die number places.
If you and I land in the same spot, then the active player is shown and the inactive player is hidden.

There should be no ambiguity about the active player or what to click on. Right now the play label is one color, the equation is another color, and the die is always showing so I don't have a clue who's turn it is or what to click on.

The graphics look great and the functionality is 95% complete. With some extra effort you could make this game more user friendly.

Q: Was that intentional?
A: I think it happened in the course of play and I decided to save at that point.

I usually use the first 5 letter word that pops into my head. It may make my score slightly larger (worse), but I find it more challenging and enjoyable. I typically use this scene to help solve the Wordle, but it's not cheating since I created the tool. I now have 100% success for 220 plays with an average score of 3.99 with the real Wordle.

Statement (S): zero ohm capacitor is not permitted
Response (R): I suspect that capacitor manufacturers strive for zero ohm capacitors.

S: A zero ohm capacitor is electrically a piece of wire!
A: A zero ohm inductor is electrically a piece of wire. A zero ohm capacitor is electrically a capacitor. I don't see any problem shorting out capacitors. It's great fun. Spot welders often use a bank of capacitors that are localy shorted across two pieces of sheet metal to create a spot weld.

So I think we agree that the capacitor internal resistance should be much smaller than the external circuit resistance.

I had a lot of suggestions for this scene, so I just made a response scene, use whatever you like and don't be hesitant to tell me if you think a component sucks. The only thing I copied was the jumper cable (and the whole modular concept).

P.S. I can see now that your capacitor is better than mine.

Thanks.

Nice work. I like the simple method you use to ensure that only one particle responds when two particles collide.

Q: What type of gear teeth are used?
A: Involute profile gear teeth. With involute teeth, the gear teeth roll against one another without slipping.

Q: Where did you get the gear tooth profile?
A: Search Algobox for search word "gear" and author "s_noonan".

Q: What is "V(m/s)"?
A: V(m/s) is air velocity which is used to calculate the convection coefficient which determines how fast the object responds to room air temperature changes.

Q: Is it common to mix imperial and metric units for this type of calculation.
A: No, normally you would use consistent units, but I used Watts for energy generation since I have a better physical understanding of Watts than BTU/hour. I used W/(m^2-°C) for the convection coefficient and m/s for the air velocity because that's what the chart and formula I used were based on.

Q: I did not know how to calculate the required dimensions and shape of such a heat sink.
A: If the part is in CAD then there is usually a way to automatically get volume and surface area for the part. If it's a part of uniform cross section, then you could use Algodoo and the code in one of the objects in Thermal Convection to get perimeter (P) and area (A). Surface area = P * L + 2 * A. Volume = A * L. If it's just size and shape you're after, then I would just scale up or down a standard heat sink. I would expect a scaled heat sink ability to dissipate heat to be directly proportional to its surface area.

It is generally accepted that the lum­ped system analysis is applicable if the Biot number < 0.1. If that's not true, then the approach in this scene is not applicable.

My best guess is that if the heat sink uses natural convection then lumped analysis applies.

I had already looked into making a junction. I was looking for an external spur gear arrangement that imitated an automobile rear end differential and didn't come up with anything. I didn't consider stretched axles. I might give it another shot. Maybe stretched axles or an internal spur gear would help. Nice improvements on your scene.

I saw that and figured it was done inadvertently. I did a Notepad++ compare and saw that only the description changed. I was going to let it go but decided to update the title and description today. I revisited Kilinich's scene mentioned in the comments above and am still amazed at his level of understanding and coding ability.

Q: Would the plot be more useful if the Y-axis was logarithmic?
A: I don't think so. Logarithmic scales are typically used for very wide ranges. In this case the range is too small. If the value doesn't change in 30 seconds then the auto-scaling max and min become equal and the plot disappears. I need to set a default minimum range.

Q: Can this be used for carving turkeys?
A: Yes, but the laser needs to be very far away if you want parallel slices.

Thanks.

Q: Did you use your Spur Gear Generator II to make the gears?
A: No, I used the gear generator in Mechanical Toolbox, which is essentially the same.

Regarding "Positraction", I did add some braking between the primary output gears and blue planet carrier gear, but there is probably a more accurate way to do limited slip thru coding. OK for anybody reading this to add coded limited slip and re-post.

Thanks.Regarding PID, I've never thought about it that way, but since it's a self correcting system it must have similar characteristics.

Thanks.

Q: Doesn't the Algodoo "Combine Shapes" tool essentially do the same thing?
A: No, the Algodoo "Combine Shapes" tool does more and does it better.

I was looking into polygon cutting because I wanted something to automatically slice polygons similar to the Laser Angle Cutter scene. If I had that, then I could add it to my FEA Stripper scene which already has horizontal and vertical polygon slicing. Angle slicing was not as easy as I thought. Most of the slices would be OK, but I had problems with angles greater than 2*pi and slices made from the beginning and end of the polygon surface array. Angle slicing might also be applied to thermal FEA or to exploding objects.

Thanks.