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File (hide): 1681046044559.png (50.61 KB, 1024x1024, 1:1, Penrose Tiling.png) ImgOps iqdb

[–]  No.64802[Reply][Watch Thread]

Recently I've become fascinated with tessellation and spent the past couple of weeks collecting pictures of mosaics from around the world. Eventually just looking at them was not enough and I want to go deeper, understand the geometric shapes and its secrets better. Not even sure why but periodic tiling feels like a brain massage to me, like I'm about to fall out of bottom of how I usually perceive the world around me. So I picked up the book Geometry by Cambridge University Press. Feel free to give a hollow laugh: I honestly thought I could just skip the math part of geometry (yes I'm an idiot) and appreciate its resulting surfaces. While you can do that, if you want to appretiate geometry even at a surface level, you need to know the bare minimum of maths. The book suggested a good grasp on the basics of linear algebra and algebraic structure. I thought 'OK, I'll read the wiki entries as a lazy primer' and quickly realized I forgot even the basics of mathematical symbols. I guess it's true after all, if you don't use it you lose it.

Long story short, I'm currently going through Pure Mathematics for Beginners. The good part of being dumb is when you learn a single thing it feels like a whole new world just opened up and it feels really good.

So yeah, maths thread.
Previous one; >>30554
45 posts and 6 image replies omitted. Click to expand.

[–]  No.68700

bump
>>68091
>read chapter in x days, page by page until I understand each theorem and its proof
>do at least 30% of the proposed exercises

[–]  No.68713

>>68091
Creating Anki decks of the books I read as I go along have been a huge help in allowing me to grab concepts and make connections. Had I started doing this in undergrad, classwork would have been trivial. So I have been working through new stuff and also re-examining my old textbooks related to what I use in my work.
It takes some practice to make good cards for mathematics, it took me about 3 months of making cards for an hour a day before I really developed a sense of what to do.
I reference the 20 Rules from SuperMemo a lot. https://www.supermemo.com/en/blog/twenty-rules-of-formulating-knowledge

[–]  No.68899>>68901

ive been trying to figure out some math for working with game graphics, but im struggling to understand how i would use these pure mathematics in graphics at all. i am a mathlet though, im currently learning basic trigonometry, then i plan on learning some linear algebra and figuring out how 3d graphics actually work. eventually i plan on learning physics too because i want to make fun physics simulations but thats way down the line.

[–]  No.68901>>68903


[–]  No.68903

>>68901
interesting stuff thanks wizzie



File (hide): 1741969782120.jpg (2.94 MB, 2580x2580, 1:1, moon.jpg) ImgOps iqdb

[–]  No.68866[Reply][Watch Thread]

Anyone interested in astronomy? Particularly direct observation with a telescope or binocular.

My interest in astronomy has expanded recently to direct observation instead of just reading books and editing Wikipedia articles. I found an old Nikon 8x42 (basic bird-watching equipment) in a drawer the other day and decided to give it a shot. I know better than to punch above my weight, and you can pretty much forget about deep-sky objects or even other planets when you have a simple binoculars for terrestrial observation, so my best shot is to focus on the closest astronomical object from Earth. I got a couple of lunar atlases online, a couple of lunar calendars, and read the basics about selenography.

It's basically impossible to do any serious astronomical observation by simply holding the binoculars in place, even if you're sitting down. It's just way too shaky, so I strapped the thing to the top rail of a chair, placed that chair over another one and basically made a makeshift tripod. Works perfectly and I have both my hands free to check the lunar atlas or stellarium.

It's amazing how much one can observe with a stable binoculars, some patience and a lunar atlas at hand. The more familiar you get with the lunar surface, the more you'll be able to see, and even though I have only gazed at the moon for about 5 hours total so far, it's fairly easy to get familiar with its basic features. Having the atlas close by to consult just what the heck you're looking at helps immensely. Under certain light conditions, even a shallow, small crater will create an enormously long shadow that you can observe easily.

Picture attached is all the stuff I was able to observe and firmly identify so far. Two days worth of observation. The picture is not accurate to what I was actually seeing, as the moon was waxing when I was looking at it, and this picture shows a full moon, though I'll use this to update everything I manage to identify. For example, the crater Clavius is quite distinct during certain lunar phases, but in the picture it's barely visible. Seas and oceans (basaltic plains) are the most obvious stuff, and you usually begin with those since it's so distinct and easily identifiable. Then you start noticing the bays (recesses of the seas), craters and recently I managed to observe a lunar swirl, though it took me a minute to realize it. Btw if you're located in the northern hemisphere, this picture is inverted for you.

IPost too long. Click here to view the full text.
2 posts and 1 image reply omitted. Click to expand.

[–]  No.68873

>>68870
>any interest in anything at all is a result of AUTIZM
Stop

[–]  No.68882>>68884

I had a shitty telescope a while back, and I could never see shit. The moon looked cool, but to point to a specific star or planet was almost impossible. And when I got to point to anything all I could see was a white dot. Besides, there was a bit of light pollution where I lived then so I couldn't see much in the sky sometimes.
I liked to look at the constellations, however; I like astronomy and I wish I had the time to learn more about it, and to work out calculations on my HP-48.

[–]  No.68884>>68893

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>>68882
The most common type of telescope, and possibly the one that brings the most frustration (because they are usually purchased without much thought or a specific goal in mind), is the refractor telescope. I'm guessing you had something like the one in the picture. That's a 70mm aperture refractor telescope. The 70mm refers to the size of its primary lens, which is located at the end of the tube. This type is often chosen for children or as a first telescope because they are inexpensive and most brands offer one for sale. They are also incredibly easy to use. You simply point it at your astronomical object of choice, look through the eyepiece, and that's it, minimal adjustments are required.

Still, you can fall in love with a 70mm refractor IF you are aware of its capabilities and limitations. As I mentioned in the original post, if you try to punch above your weight when equipment is concerned, frustration will usually ensue. Even with excellent lenses, 70mm refractors are not all that suited for observing stars and deep-sky objects. They will improve your visibility significantly, but stars, nebulae, and deep-sky objects are quite far from Earth, so they will still appear as bright points in the sky.

70mm refractors are primarily for objects within the solar system. If you know how to use them and have some patience while waiting for a clear night, you can, for example, see the rings of Saturn, the moons of Jupiter, comets, and so on. Of course, you can have a lot of fun observing the Moon; many features of its surface will be visible. Again, you can use it for objects farther away, but keep in mind that they won't look like the pictures from NASA. Still, there's a lot of enjoyment to be had with a 70mm telescope.

In fact, I'm currently shopping around for one. They are perfect for what I want to do. The key is to purchase one from a reputable brand like Celestron. Having a very good 70mm telescope is far better than having a poor-quality 130mm one. The quality of the lens is crucial. There are many issues that can arise with inferior lenses, such as chromatic aberration and fuzziness caused by poorly adjusted components inside the telescope. So, opt for a small aperture with good quality.

Now, you are correct that astronomy is mostly about geometry. Actually SEEING objects is a relatively small part of the overall experienPost too long. Click here to view the full text.

[–]  No.68893>>68898

>>68884
Thanks for the book rec! I had actually found it, and it was one of my favorites on the list (along with Smart's spherical astronomy, and Jean Meeus' Mathematical Astronomy Morsels.)
If I get my hands on that telescope again, I will definitely look at the moon more attentively. We take so much for granted in life.

[–]  No.68898

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So this night was more or less clear, 34% humidity, some clouds but good, clear windows between them for longs periods of time. Not in the right places to see the moon but I decided to just focus on whatever I could see. A large area from the Southern Cross was quite visible, particularly the "backyard" of Mimosa, the second brightest star in that constellation. I was not focusing on Mimosa specifically, instead, just around that area, it's possible to spot a star cluster called Jewel Box (NGC 4755). It's visible to the naked eye as a fuzzy bright spot but using binoculars or a telescope you can actually see it's a collection of stars. If you're patient and keep looking at it, your eyes will adjust, as well as your focus will increase, and you'll be able to detect several different stars within the cluster. As you get used to stellar scintillation, you'll be able to distinguish more and more features. You'll be amazed how much you're be able to see if you keep at it for an hour or so, instead of just taking a peek.

Here's an useful picture. 1 is their location on the star chart. I circled its location in pink. 2 is the Stellarium graphic. I circled all the stars that was distinct enough for me to identify. 3 is a picture of this cluster taken by an observatory. 4 is closer to how I was actually seeing it through a 8x42 binoculars, which is a birding binoculars but it's the equipment I have for now.

>>68893
Happy gazing anon.



[–]  No.51498[Reply][Last 50 Posts][Watch Thread]

This thread will be for discussing all television shows, series and miniseries

https://en.wikipedia.org/wiki/2020_in_American_television#Programs_debuting_in_2020
243 posts and 81 image replies omitted. Click to expand.

[–]  No.67570

>>67566
TNG was what got me into sci-fi in the first place as a kid.
It's a good show and glad you enjoyed it.

[–]  No.67574>>67576

>>67566
Dianna Troi was a mistake. Empaths were a mistake. I fucking hated every second that bitch was on the screen. Riker was also a shit character. Other than that it was quite good and enjoyable. I wish they would have done Star Trek Captain Worf. I always liked Worf. The stuff they did later in the series really fleshed out his character and I would have liked to see him as the lead. What we got after that was just disappointing. Janeway wasn't terrible, but just not very interesting as was the show itself. It was like TNG just watered down. Then Enterprise was just shit. I didn't get very far with that one. Couldn't force myself through it.

[–]  No.67576>>67578

>>67574
Oh, and deep space 9 is good. Not as good as TNG but nearly.

[–]  No.67578

>>67576
I never liked Deep space 9 but I did enjoy TNG and Voyager.

Part of the appeal of Star Trek to me is the exploration and adventure.
Sitting on a space station most of the time just didn't do it for me.

[–]  No.68894

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I'm currently watching Star Trek the original series after almost a year without touching any Trek at all. I needed the abstinence to enjoy this stuff again. Just finished watching Shore Leave from the first season. It's a decent episode, a rather quaint idea but way too padded out. I won't be commenting every single episode here, but will try to make a post summarizing my thoughts on each season.


[Last 50 Posts]

[–]  No.68756[Reply][Watch Thread]

A thread for those who enjoy and wish to discuss animation and animation related stuff from places that aren't Japan.
22 posts and 3 image replies omitted. Click to expand.

[–]  No.68863

>>68860
>A thread for those who enjoy and wish to discuss animation
>and wish to discuss animation
>discuss animation
Do you have something to discuss?
This isn't a dump thread.

[–]  No.68871>>68872

> Animation related stuff from places that aren't Japan.
NEZHA is ok? It's based on a Chinese myth.

Next up: Arcane (french animation)

[–]  No.68872

>>68871
The first one was discussed in the last thread.
Haven't seen the second one yet.
What did you think of it without spoilers?

Will also again point out this isn't a dump thread.
Don't just dump youtube vids without having anything to say.

[–]  No.68875>>68892

What is the problem with modern cartoon writing? Compare it with dinobot's writing. A character in a complex in a dilemma among its predacon heritage, his maximal loyalty with a strong sense of honor. Dinobot attempts suicide for this very reason. Until he decides to make a decision and realizes that he no longer has a choice. Even so, knowing that he was going to die anyway, he confronts and defeats all the predacons. It brought a tear to my eye, and I had not seen beast wars until today.

>Tell my tale to those who ask.Tell it truly, the ill deeds along with the good and let me be judged accordingly.The rest is silence


Today we only have shows inspired by the cheap sappy sentimentality of steven universe.

[–]  No.68892

>>68875
>Today we only have shows inspired by the cheap sappy sentimentality of steven universe
Steven Universe is kinda old to use as a example of modern cartoon writing.

The last addition to the show was over 5 years ago.

Most modern shows are just adaptations of older properties being continuily recycled.

If you want good examples of modern cartoon writing then it's probably better to keep a eye on movies.

For example Puss and Boots: Last Wish had excellent writing.



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[–]  No.68521[Reply][Watch Thread]

Favorite comic?
Favorite author?
Favorite cartoonist?
Favorite character?

What are you reading right now?

Previous thread: >>41819
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[–]  No.68796

I wish argentinian comic were more praised around the world.

[–]  No.68812

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>>68718
Fleetway sonic is crazy. Most of the characters fell straight out of 2000ad. Captain Plunder is like a Ork Kaptin with more consciousness and less Dakka. The echidnas were misterous species of warriors, even before the penders comics and sonic adventure 1. Sonic dont care about gfs, so theres no drama about sally, fiona or bunnie raping sonic

[–]  No.68842>>68850

<3 The Last Airbender
It's been twenty years…

[–]  No.68850

>>68842
The comics are decent but, it will never be the same as the original show. Thanks Bryan Konietzko and Michael Dante DiMartino for destroying the franchise

[–]  No.68876

Been reading I Hate Fairyland. Gert is a homicidial cunt.



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[–]  No.60202[Reply]>>68867[Watch Thread]

Anyone here interested in researching serial killers? I find some of their backstories and psychiatric evaluations really interesting…
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[–]  No.68784

Hear about the new tranny cult that serial killed their way across the US that was just partially caught?

6 known victims so far, but that number might grow as more details are uncovered.

[–]  No.68830>>68832

>>68755
King Von is dead. He was such a real nigga that his opps in prison felt sad when he passed away. Like he killed our people but what a legend. Rare specimen. They couldn't believe it and left a deep sigh.

Once he was questioned by the cops and they said "You and T.Roy are the talk of the streets. Be wary". The info about their shootings and their enemies plans reached even the police. He was a valuable shooter for his set. Without him the score would be way less. He felt in jail and prison like fish in the water so much that goofies on YouTube whine about him romanticizing it in his interviews where he simply told his experience. Never snitched too. The story about him putting $100,000 on FBG Duck is prolly fake. The chains were bought long before the killing. Muwop and others killed FBG Duck because one person from THF said he was trapped and about to be attacked. Hence why they rushed so fast and got caught. FBG Duck was fucking that person's baby mother (ex). When in court it was revealed he was in no danger, 5 members of O'Block 6 (one killed himself before arrest) gave him a side eye. That's for real.

Unfortunately for all involved from all sides.

[–]  No.68832

>>68830
Not that Von would be against that, but the dates from the paperwork don't coincide.

[–]  No.68867>>68868

>>60202 (OP)
How about the people that protect us from scum like him?

[–]  No.68868

>>68867
TV show actors? What?



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[–]  No.49409[Reply][Last 50 Posts]>>68420[Watch Thread]

Anyone here have weird, niche interests? I’m curious about this kind of thing. I like hearing about people dedicating their lives to one specific strange thing. Post about them here.
95 posts and 25 image replies omitted. Click to expand.

[–]  No.68015


[–]  No.68024

I like to collect old phones and PDAs. I have spent hundreds of dollars on these obsolete devices. They're pretty cool though

[–]  No.68420

>>49409 (OP)
is that image supposed to be pareidolia? becuase it kinda looks like a face from the distance.

[–]  No.68859>>68861

I make parasols & umbrellas

[–]  No.68861

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[Last 50 Posts]

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[–]  No.56891[Reply][Last 50 Posts][Watch Thread]

Any other wizards into combat sports?
I have done Krav Maga (2 years); it was ok but I can see why people say it’s overrated. Did some BJJ at an MMA gym but it was expensive as fuck. Boxing was the best so far; nothing has tested my fitness, strength, timing and precision like boxing. Class was always all male.

Really want to try Muay Thai. What other fighting styles are wizards into?
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[–]  No.67750>>67752

>>67749
how do you know you're high testosterone? Are you a fast gainer?

[–]  No.67752

>>67750
His desire to crush his enemies, see them driven to suicide, and to hear their loli call him "nii-san" is indicative of extremely high testosterone.

[–]  No.67754

>>67749
A decent wizard does not even befriend the kin of their enemies, lest it be to cause further havoc to them

[–]  No.68525

New year, new martial art.

Started formally practicing kali.
It's expensive and the talent I have to train with is limited, but as long as they don't drip feed instructions I am pretty confident I can learn all I want from it in 6 months to a year.
What I am mostly worried about is the instructor wants to mix in Krav, which I am not interested in, and very likely wants to avoid allowing sparing often, which is troublesome since I am used to sparing almost every class when I did karate.

[–]  No.68846

I know Taichi


[Last 50 Posts]

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[–]  No.65873[Reply]>>68844[Watch Thread]

Do any of you play Go/Weiqi/Baduk? It feels certainly like a game one with a lot of time can devoted themselves to. Other interesting games like shogi or chess? It's certainly somewhat difficult to self teach and a teacher would help but it is what it is.
18 posts omitted. Click to expand.

[–]  No.65978

>>65977
unlike games of chance, you actually have 100% control over it

[–]  No.65981

I've been playing weiqi and shogi for five years and chess for longer, but recently decided to stop. I don’t really want to stare at a screen all day anymore and it’s impossible to find a game with a long enough time control where I can make moves on a physical board, and I'm tired of playing correspondence. But beyond that, I think that AI has fundamentally changed the nature of these games and the culture surrounding them to the point where they no longer appeal to me. I think I’ll keep studying old pro games on a physical board, at least.

I was going to link a subbed NHK Cup game, but I just learned that they've all been copyright claimed apparently. This sucks.

>>65898
There seems to be a misconception that because the rules are simple and about surrounding things, the game must be straightforward and peaceful, but in reality, most weiqi games devolve into complicated, high-stakes fighting. I think it's a very intriguing game once you understand how the stones interact with each other.

[–]  No.68809

How good is GO AI opponents these days?

[–]  No.68822

I like the game but I can't play it.
What I mean is that I suck, and I don't get any better however much I play or try to read go books. I do enjoy it but I also feel tense as I have to keep myself from making impulse moves and think my moves, but reading different variations gets very taxing and I end up making a mess..
I like the fights, though. I like breaking into a seemingly safe territory and living.

[–]  No.68844

>>65873 (OP)
GO is a gentleman's game.



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[–]  No.68271[Reply][Watch Thread]

What makes a good fantasy or science fiction novel for you. Is it the prose or the writer's ability to bring his ideas to life?

Have you read any novels that you consider beautiful in their own right?
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[–]  No.68797>>68814

Was Phil dick a regular crackhead or it was really a gnostic of his time. A real shaman of the words. Many times he tried to kill himself. Everytime he saw his own self stopping him from doing it. Like his life was required for something else

[–]  No.68814>>68841

>>68797
Makes me think if theres a world better than this for everybody.

[–]  No.68827>>68836

Anyone read any Thomas Disch before? I just know that he's responsible for writing The Brave Little Toaster. On an unrelated note, I'm thinking of picking up Childhood's End because the plot synopsis makes me think of Half-Life 2.

[–]  No.68836

>>68827
334 Must be one of the most saddest novels i ever read, because shown our own present, and a wet dream for every Technocrat out there. You dont even have rigths if you are stupid.

His death is a great lost for fiction in general, he killed himself because the death of his boyfriend some years ago, and that nobody wanted to publish his books, but, publishing houses craves for the work of those 2 hacks of king and martin.

[–]  No.68841

>>68814
It's incredibly depressing how hostile most of the universe is. Even most exoplanets are just hellholes full of ice, cold water, molten rocks, noxious gas storms and scorching sand.

I participated in Seti@Home at one point. But these days I wonder if we are just that 1 in a trillion freak accident. That among those endless galaxies, all there is to find is hellhole planets void of any life.



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