Vai Tigrão.

my masterpost | my studygram | ask me anything

[click images for high quality]

[transcript under the cut]

Other advice posts that may be of interest:

All About Procrastination

How To Study When You Really Don’t Want To

Common Study Mistakes

7 Strategies to Improve Concentration

How To Make Your Notes Aesthetic

Muito claro e preciso.

- calculus notes

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the cafe where i usually study at was soooo noisy today but at least i managed to work on my history IA and notes on some poems😌 what did you guys do this weekend?🤔

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IG: @studybroe

Fofo

Belíssimo

Snake fist by beautiful Sun Linya 😍🐍

É verdade.

FIRST LOOK AT ANT-MAN & THE WASP!

The superhero couple rocking their sweet looking suits!

Just today I got to see a chess book that I remember reading as a little kid. While it didn't give me a lifelong passion for chess, it did give me a lifelong passion for fantasy for its artwork.

The book is "Chess for Young Beginners" from 1975, and here's some of the artwork:

Like, this artwork goes hard. I especially appreciate the colour scheme for the black pieces, with its browns, bronzes, reds and oranges.

This artwork is amazing, evocative, exciting and dramatic. I recommend giving it a look if you have a chance - you can probably scrounge up a PDF of this thing with a bit of searching.

I’m not lying when I say I had a very vivid nightmare when I was 5 that came very close to this video that instagram shoved in my face

Isso sim é que é matemática.

Lissajous curve table

Sewing Machines & Planned Obsolescence

I've got these two sewing machines, made about 100 years apart. An old treadle machine from around 1920-1930, that I pulled out of the trash on a rainy day, and a new Brother sewing machine from around 2020.

I've always known planned obsolescence was a thing, but I never knew just how insidious it was till I started looking at these two side by side.

I wasn't feeling hopeful at first that I'd actually be able to fix the old one, I found it in the trash at 2 am in a thunderstorm. It was rusty, dusty, soggy, squeaky, missing parts, and 100 years old.

How do you even find specialized parts 100 years later? Well, easily, it turns out. The manufacturers at the time didn't just make parts backwards compatible to be consistent across the years, but also interchangeable across brands! Imagine that today, being able to grab a part from an old iPhone to fix your Android.

Anyway, 6 months into having them both, I can confidently say that my busted up trash machine is far better than my new one, or any consumer-grade sewing machine on the market.

Old Machine Guts

The old machine? Can sew through a pile of leather thicker than my fingers like it's nothing. (it's actually terrifying and I treat it like a power tool - I'll never sew drunk on that thing because I'm genuinely afraid it'd sew through a finger!) At high speeds, it's well balanced and doesn't shake. The parts are all metal, attached by standard flathead screws, designed to be simple and strong, and easily reachable behind large access doors. The tools I need to work on it? A screwdriver and oil. Lost my screwdriver? That's OK, a knife works too.

New Machine Guts

The new machine's skipping stitches now that the plastic parts are starting to wear out. It's always throwing software errors, and it damn near shakes itself apart at top speed. Look at it's innards - I could barely fit a boriscope camera that's about as thick as spaghetti in there let alone my fingers. Very little is attached with standard screws.

And it's infuriating. I'm an engineer - there's no damn reason to make high-wear parts out of plastic. Or put them in places they can't be reached to replace. There's no reason to make your mechanism so unbalanced it's reaching the point of failure before reaching it's own design speed. (Oh yeah there is, it's corporate greed)

100 years, and your standard home sewing machine has gone from a beast of a machine that can be pulled out of the literal waterlogged trash and repaired - to a machine that eats itself if you sew anything but delicate fast-fashion fabrics that are also designed to fall apart in a few years.

Looking for something modern built to the standard that was set 100 years ago? I'd be looking at industrial machines that are going for thousands of dollars... Used on craigslist. I don't even want to know what they'd cost new.

We have the technology and knowledge to manufacture "old" sewing machines still. Hell, even better, sewing machines with the mechanical design quality of the old ones, but with more modern features. It would be so easy - at a technical level to start building things well again. Hell, it's easier to fabricate something sturdy than engineer something to fail at just the right time. (I have half a mind to see if any of my meche friends with machine shops want to help me fabricate an actually good modern machine lol)

We need to push for right-to-repair laws, and legislation against planned obsolescence. Because it's honestly shocking how corporate greed has downright sabotaged good design. They're selling us utter shit, and expecting us to come back for more every financial quarter? I'm over it.