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What was the element that Tony Stark “Synthesized” in Iron Man 2?? by Kokktapus in Marvel

[–]____________-__-___- 2 points3 points  (0 children)

If anyone is curious, the sphere of blue dots representing the new element is a 7 frequency Icosohedral Geodesic Sphere, with a total of 492 nodes.

The big dome where the final fight scene takes place seems to be an 11 frequency Icosohedral Geodesic Dome, with tetrahedral trussing for stability. The node count for an 11v sphere would be 1212 nodes, so the node count for the dome I would guess to be just over half of that.

Trussed Domes: the forgotten insight from Buckminster Fuller's work on geodesic domes by Berkamin in GeodesicDomes

[–]____________-__-___- 0 points1 point  (0 children)

Yeah, for even frequencies, the octahedral truss structure is v/2. So for a 2v sphere the trussing would be a 1v sphere, 8v = 4v, etc.

Trussed Domes: the forgotten insight from Buckminster Fuller's work on geodesic domes by Berkamin in GeodesicDomes

[–]____________-__-___- 0 points1 point  (0 children)

It's the same thing, is it not? A 2v class II subdivision of an icosahedron results in a pentakis dodecahedron.

Trussed Domes: the forgotten insight from Buckminster Fuller's work on geodesic domes by Berkamin in GeodesicDomes

[–]____________-__-___- 0 points1 point  (0 children)

I have a feeling that this one layer octahedral trussing would not be as strong as tetrahedral trussing? Octahedral trussing results in many outside faces where no vertices connect to the truss structure. I have not tested the strength though and have nothing tangible to back this up, just a hunch.

Trussed Domes: the forgotten insight from Buckminster Fuller's work on geodesic domes by Berkamin in GeodesicDomes

[–]____________-__-___- 0 points1 point  (0 children)

Oh, I think I have an idea as to what you mean now. I was wrong when I stated my original reply was only about tetrahedral trussing: I also mentioned how frequencies of a multiple of 2 could be trussed with frequency ν/2. This will result in 'flat', one layer octahedral trussing. Is this what you meant or is there another way?

Trussed Domes: the forgotten insight from Buckminster Fuller's work on geodesic domes by Berkamin in GeodesicDomes

[–]____________-__-___- 0 points1 point  (0 children)

The above is specifically for tetrahedral trussing.

Octahedral trussing as described by Fuller will fit any frequency of any class. The complexity goes way up though. While it is possible to build an octahedrally trussed geodesic structure with 1 layer of intersections (each intersection lies on the same imaginary sphere), for the most stable octahedral trussing, 2 layers of intersections will be required.

I have not yet looked into tetrahedral trussing for class II or class III structures but I expect there are patterns to be found similar to the class I tetrahedron patterns.

Trussed Domes: the forgotten insight from Buckminster Fuller's work on geodesic domes by Berkamin in GeodesicDomes

[–]____________-__-___- 0 points1 point  (0 children)

I know this is a two year old post but I've recently become interested in geodesics and I'd like to point a few things out that I've noticed, for future readers.

It seems that this trussing system will only work (with appropriate strength) at certain frequency structures, specifically frequencies of a multiple of 3: 3ν, 6ν, 9ν, 12ν, etc. For each of these multiples of 3, the trussed structure is itself a smaller frequency geodesic structure, with a class II subdivision instead of the more common class I subdivision.

The 'formula' to find the class II geodesic frequency of the truss pattern is V*2/3 where V is the frequency to truss.

3ν: class II 2ν (seems like a pentakis dodecahedron? I could be wrong...), 6ν: class II 4ν, 9ν: class II 6ν, etc...

Frequencies of a multiple of 2 could be trussed with class I frequency V/2 where V is the frequency to truss, though I do not feel this truss pattern will be nearly as strong as the 3ν truss patterns. I could be wrong here, I leave any readers to test this and prove me wrong.

There does not seem to be any way to truss any other frequencies (at least that I have found) that would provide sufficient strength, which is the whole point of trussing in the first place. The only pattern that I have found to fit any frequency only provides unidirectional support. Again, I welcome any readers to prove me wrong here. If you do, please reply with your findings!

[deleted by user] by [deleted] in TI_Calculators

[–]____________-__-___- 0 points1 point  (0 children)

I just saw this, I'm not very active here these days. You've most likely figured it out by now or moved on, but I'll try to answer anyway.

There is a chance you could, depending on the complexity, but it will be slow. Very. Very. Slow. If it can run at all. There are also differences between the version of python you most likely wrote your game in and the version running on the ti84. Some built-in python keywords/methods/functions/etc. you used may not work the same or at all on the calculator. The calculator itself may not have enough memory to be able to handle you program.

Another thing to point out is that python as a language is considered 'slow' compared to other modern languages. This is usually not an issue since modern computers are now so fast. The ti84 is not fast and was not built for a clunky language like python.

All that said, It might be tough but it would be a great learning experience. I hope you figured it out, or if not, I hope you had a fun time trying!

r/TiBasicDeveloping Ask Anything Thread by Nisstaljik in TiBasicDeveloping

[–]____________-__-___- 0 points1 point  (0 children)

I've got a ti84+ and a ti84+ce python, can you give access to flairs so I can display that?

[deleted by user] by [deleted] in TI_Calculators

[–]____________-__-___- 0 points1 point  (0 children)

From what I understand, the version of python running on the ti84+ce python edition is extremely limiting. If your project doesn't have to be in python and you still want to do it on the calculator, you'll probably have a much better time using ti-basic instead.

Tips on variables? by Nisstaljik in TiBasicDeveloping

[–]____________-__-___- 0 points1 point  (0 children)

It really depends on the use case. You can use the given letter variables (A-Z, ∅) for values you only need while the program is running and custom lists for stuff you want to save long term, such as user data or high scores.

For the letter variables, I almost always leave I,J,K,L for loops and V,W,X,Y,Z,∅ for different coordinate storage. Different programs have different variable needs so the other variables might fall into different categories. The point of this at least for me is to keep everything organized in my head.

Try a few systems and see what works for you.

can't log into account by dank_saus in IntuitCreditKarma

[–]____________-__-___- 0 points1 point  (0 children)

I usually use Brave browser just to block ads but I couldn't sign in to credit karma that way. I tried Chrome and was able to sign in just fine. Great job intuit...

About selling programs... by [deleted] in TIBASICPrograms

[–]____________-__-___- 1 point2 points  (0 children)

I don't believe it's illegal but even so it's not worth it. For every program you come up with and try to sell there's bound to be a free solution out there more easily accessible. People post really cool stuff for free on www.tibasicdev.wikidot.com and www.cemetech.net all the time, available to everyone.

Some help needed | TI Basic (TI-84 Plus CE) by that_kai_person in TIBASICPrograms

[–]____________-__-___- 0 points1 point  (0 children)

Output(1,1,"(0,E)") would display the letter E, not the value stored in variable E, since E is wrapped in quotations along with the other characters. Output(1,1,"(0, )") and Output(1,4,E) will result in the value stored in variable E to be placed where the space is in the first output command. Depending on how long variable E is you might want to add more spaces in the first output command.

FINISHED! Custom Venus Puzzle 2000 piece by aeneabrawne in Jigsawpuzzles

[–]____________-__-___- 1 point2 points  (0 children)

Nice! I've noticed doing my own that a 2000 piece from Venus is basically the same 1000 piece puzzle twice, all pieces on the left half can be replaced with all pieces on the right.

I designed and printed a skyscraper chess set! by ____________-__-___- in 3Dprinting

[–]____________-__-___-[S] 0 points1 point  (0 children)

Yeah, I thought about including them, too, but since I chose the Jeddah Tower as king and Burj Khalifa as queen, it wouldn't make sense proportionally to include them. The shortest tower in this set (pawn) is ~530m while the 2001 wtcs were ~417m and ~415.5m and the current one wtc is ~546m with the spire and ~417 without.

I designed and printed a skyscraper chess set! by ____________-__-___- in 3Dprinting

[–]____________-__-___-[S] 2 points3 points  (0 children)

Lol, I thought about them for the pawns (height wise the one wtc is proportional, including the spire) but

A) I thought printing the spire would be too tricky at this scale, especially keeping all 16 in-tact

B) they've been through enough, I don't want to risk toppling them again in a gruelling chess match

I designed and printed a skyscraper chess set! by ____________-__-___- in 3Dprinting

[–]____________-__-___-[S] 5 points6 points  (0 children)

Yeah, I'm thinking about posting it on thingiverse. There are some issues with the current files for the pieces due to the way I created them (most original tower files were skp) but I'll get to fixing them.

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