#geometry — Public Fediverse posts

The other day I was explaining to someone that I'm reviewing high school geometry because I'm both overqualified and underqualified to tutor in it.

I'm going to tutor in it this fall for a student that I've been tutoring now in math for over a year.

I'm overqualified because I can tutor geometry concepts that are beyond high school geometry.

I'm underqualified because up until this afternoon I was having trouble distinguishing a rhombus from a diplodocus. :derpface:

I'm exaggerating a bit, but you get the gist. I'm plugging the holes in my knowledge.

#tutoring #math #geometry

#visualart #artevisual #photography #Photo #fotografie #fotografia #NoToWar #couleur #colors #artberlin #artlondon #artparis #artmontreal #artbasel #artnewyork #arthamburg #geometria #geometrie #geometry #AbstrakteFotografie #abstractphotography #photographieabstraite
https://pablomartinezcalleja.blogspot.com/2026/08/abstraccion-de-una-sopa-con-soba.html

#visualart #artevisual #photography #Photo #fotografie #fotografia #NoToWar #couleur #colors #artberlin #artlondon #artparis #artmontreal #artbasel #artnewyork #arthamburg #geometria #geometrie #geometry #AbstrakteFotografie #abstractphotography #photographieabstraite
https://pablomartinezcalleja.blogspot.com/2026/08/fotografia-abstracta-cccvi-photographie.html

#visualart #artevisual #photography #Photo #fotografie #fotografia #NoToWar #couleur #colors #artberlin #artlondon #artparis #artmontreal #artbasel #artnewyork #arthamburg #geometria #geometrie #geometry #AbstrakteFotografie #abstractphotography #photographieabstraite
https://pablomartinezcalleja.blogspot.com/2026/08/fotografia-abstracta-de-la-vida_0704355156.html

Ever tried turning a cube inside out? In 1929, inventor Paul Schatz figured out that if you remove the corners of a cube, the middle turns into a hinged ring that flips inside out. #science #physics #discovery #geometry

Ever tried turning a cube inside out? In 1929, inventor Paul Schatz figured out that if you remove the corners of a cube, the middle turns into a hinged ring that flips inside out. #science #physics #discovery #geometry

Why were we as a species allowed to say there’s a “right angle” but not a “wrong angle”? #geometry

Why were we as a species allowed to say there’s a “right angle” but not a “wrong angle”? #geometry

#visualart #artevisual #photography #Photo #fotografie #fotografia #NoToWar #couleur #colors #artberlin #artlondon #artparis #artmontreal #artbasel #artnewyork #arthamburg #geometria #geometrie #geometry #AbstrakteFotografie #abstractphotography #photographieabstraite
https://pablomartinezcalleja.blogspot.com/2026/08/fotografia-abstracta-de-la-vida_0279173716.html

#visualart #artevisual #photography #Photo #fotografie #fotografia #NoToWar #couleur #colors #artberlin #artlondon #artparis #artmontreal #artbasel #artnewyork #arthamburg #geometria #geometrie #geometry #luz #lumiere #light #Licht #AbstrakteFotografie #abstractphotography #photographieabstraite
https://pablomartinezcalleja.blogspot.com/2026/08/geometrias-luminicas-composicion.html

For everyone supporting me on Ko-fi and Patreon, a little pure #CSS #3D treat.

❇️ https://ko-fi.com/post/tiles-on-icosahedron-R3F224ZYR4

❇️ https://www.patreon.com/anatudor/posts/tiles-on-166570091

#cssGrid #code #coding #frontend #jade #sass #Maths #geometry #cssLayout #cssVariables #interaction #web #dev #webDev #webDevelopment

For everyone supporting me on Ko-fi and Patreon, a little pure #CSS #3D treat.

❇️ https://ko-fi.com/post/tiles-on-icosahedron-R3F224ZYR4

❇️ https://www.patreon.com/anatudor/posts/tiles-on-166570091

#cssGrid #code #coding #frontend #jade #sass #Maths #geometry #cssLayout #cssVariables #interaction #web #dev #webDev #webDevelopment

New blog post: “There are two kinds of theorems”.

Mathematics alternates between model-building and model-using. After the model building comes a series of theorems showing that the model works and makes sense. And then come the real theorems, the new ones about the thing that was being modeled.

This is perhaps the most important mathematical methodology, and it is never explained to the students, who are left wondering why Euclid proves a lot of theorems about things that are obvious (“vertical angles are equal”) or why we show that the Peano axioms can prove the commutativity of addition.

https://blog.plover.com/math/two-kinds-of-theorems.html

#math #pedagogy #mathEducation #geometry #universeOfDiscourse

New blog post: “There are two kinds of theorems”.

Mathematics alternates between model-building and model-using. After the model building comes a series of theorems showing that the model works and makes sense. And then come the real theorems, the new ones about the thing that was being modeled.

This is perhaps the most important mathematical methodology, and it is never explained to the students, who are left wondering why Euclid proves a lot of theorems about things that are obvious (“vertical angles are equal”) or why we show that the Peano axioms can prove the commutativity of addition.

https://blog.plover.com/math/two-kinds-of-theorems.html

#math #pedagogy #mathEducation #geometry

Why Are Rivers So Mathematical?

🔗 https://www.quantamagazine.org/why-are-rivers-so-mathematical-20260810/

#Science #Fractals #Geometry #Geophysics #Mathematics #Maths #Math #Rivers

Why Are Rivers So Mathematical?

🔗 https://www.quantamagazine.org/why-are-rivers-so-mathematical-20260810/

#Science #Fractals #Geometry #Geophysics #Mathematics #Maths #Math #Rivers

Illustration by Charles Hinton, from The Fourth Dimension (1904).

Source: University of Toronto Libraries / Internet Archive

https://pdimagearchive.org/images/1fabd983-6a3c-4226-8988-7f6babf13ccd

#mathematics #spacetime #prisms #numbers #physics #geometry #tesseracts #bookillustration #diagrams #art #publicdomain

Illustration by Charles Hinton, from The Fourth Dimension (1904).

Source: University of Toronto Libraries / Internet Archive

https://pdimagearchive.org/images/1fabd983-6a3c-4226-8988-7f6babf13ccd

#mathematics #spacetime #prisms #numbers #physics #geometry #tesseracts #bookillustration #diagrams #art #publicdomain

💁🏻‍♀️ TIL: 🥚✏️ Engraved #ostrich eggshells dating to over 60,000 years ago, from sites including #Diepkloof and #Apollo11, were systematically analyzed.

Over 80% of 112 fragments showed consistent spatial rules, with repeated right angles and parallel lines. The researchers argue this rule-based organization points to planned abstract thought and early symbolic systems.

👉 https://www.sciencedaily.com/releases/2026/08/260808235013.htm

#archaeology #ancient #art #paleolithic #southafrica #namibia #geometry #anthropology #humans #evolution #science #history

💁🏻‍♀️ TIL: 🥚✏️ Engraved #ostrich eggshells dating to over 60,000 years ago, from sites including #Diepkloof and #Apollo11, were systematically analyzed.

Over 80% of 112 fragments showed consistent spatial rules, with repeated right angles and parallel lines. The researchers argue this rule-based organization points to planned abstract thought and early symbolic systems.

👉 https://www.sciencedaily.com/releases/2026/08/260808235013.htm

#archaeology #ancient #art #paleolithic #southafrica #namibia #geometry #anthropology #humans #evolution #science #history

Geometry #festivallife #OlympusAF1 #ShootFilm #FilmPhotography #35mm #BlackAndWhite #Geometry #Industrial #TemporaryArchitecture #beliveinfilm #filmisnotdead #Fediverse #Pixelfed #AnalogVibes

@photography

#Places

Daily diary on Mastodon
🔗 https://pixelfed.social/p/piotrk/992750576357745967

Geometry #festivallife #OlympusAF1 #ShootFilm #FilmPhotography #35mm #BlackAndWhite #Geometry #Industrial #TemporaryArchitecture #beliveinfilm #filmisnotdead #Fediverse #Pixelfed #AnalogVibes

@photography

#Places

Daily diary on Mastodon
🔗 https://pixelfed.social/p/piotrk/992750576357745967

A perimeter is the length of a closed boundary that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional line. The perimeter of a circle or an ellipse is called its circumference.

https://en.wikipedia.org/wiki/Perimeter

#geometry #caturday #caturdayeveryday

A perimeter is the length of a closed boundary that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional line. The perimeter of a circle or an ellipse is called its circumference.

https://en.wikipedia.org/wiki/Perimeter

#geometry #caturday #caturdayeveryday

#visualart #artevisual #photography #Photo #fotografie #fotografia #NoToWar #couleur #colors #color #artberlin #artlondon #artparis #artmontreal #artbasel #artnewyork #arthamburg #urbanismo #urbanism #urbanisme #arquitectura #architecture #geometria #geometrie #geometry
https://pablomartinezcalleja.blogspot.com/2025/12/geometrias-luminicas-xii-light.html

#visualart #artevisual #photography #Photo #fotografie #fotografia #NoToWar #couleur #colors #color #artberlin #artlondon #artparis #artmontreal #artbasel #artnewyork #arthamburg #urbanismo #urbanism #urbanisme #arquitectura #architecture #geometria #geometrie #geometry
https://pablomartinezcalleja.blogspot.com/2025/12/geometrias-luminicas-x-light-geometries.html

💁🏻‍♀️ ICYMI: 🏛️📐 Egyptologist Laurel Bestock breaks down five major archaeological findings behind the #construction of the #GreatPyramid of #Giza.

Her breakdown covers ancient stone quarrying, mud-brick ramps, worker housing, transport logbooks, and earlier pyramid designs that led to Giza.

👉 Learn more: https://seethis.tv/post/an-egyptologist-explains-5-key-discoveries-about-gizas-great-pyramid

#africa #ancienthistory #archaeology #architecture #boats #buildings #culture #egypt #engineering #geology #geometry #history #jobs #limestone #math #monuments #papyrus #pyramids #stone #technology #tech #womeninstem #work #writing #tksst #video

💁🏻‍♀️ ICYMI: 🏛️📐 Egyptologist Laurel Bestock breaks down five major archaeological findings behind the #construction of the #GreatPyramid of #Giza.

Her breakdown covers ancient stone quarrying, mud-brick ramps, worker housing, transport logbooks, and earlier pyramid designs that led to Giza.

👉 Learn more: https://seethis.tv/post/an-egyptologist-explains-5-key-discoveries-about-gizas-great-pyramid

#africa #ancienthistory #archaeology #architecture #boats #buildings #culture #egypt #engineering #geology #geometry #history #jobs #limestone #math #monuments #papyrus #pyramids #stone #technology #tech #womeninstem #work #writing #tksst #video

There Are Magic Hexagons of Every Order

https://gukov.dev/math/2026/08/02/new-magic-hexagons.html

Comments: https://news.ycombinator.com/item?id=49229174

#HackerNews #magichexagons #mathematics #geometry #patterns #mathart

There Are Magic Hexagons of Every Order

https://gukov.dev/math/2026/08/02/new-magic-hexagons.html

Comments: https://news.ycombinator.com/item?id=49229174

#HackerNews #magichexagons #mathematics #geometry #patterns #mathart

Large-sized #quilts!
1st measures 84 x 90 (213 x 228 cm) 🤎🩶🤍
2nd measures 105 x 87 in (267 x 221 cm) 💙 💚 🤍 💗
msg me if you'd like to make either of these a part of your interior ~~~

#art #artforsale #quilting #quilter #quilters #quilt #handmade #design #decor #interiordecorating #interiors #artist #artists #mastoart #artstodon #artistsonmastodon #geometric #geometry

Large-sized #quilts!
1st measures 84 x 90 (213 x 228 cm) 🤎🩶🤍
2nd measures 105 x 87 in (267 x 221 cm) 💙 💚 🤍 💗
msg me if you'd like to make either of these a part of your interior ~~~

#art #artforsale #quilting #quilter #quilters #quilt #handmade #design #decor #interiordecorating #interiors #artist #artists #mastoart #artstodon #artistsonmastodon #geometric #geometry

💁🏻‍♀️ ICYMI: 🏛️📐 Egyptologist Laurel Bestock breaks down five major archaeological findings behind the #construction of the #GreatPyramid of #Giza.

Her breakdown covers ancient stone quarrying, mud-brick ramps, worker housing, transport logbooks, and earlier pyramid designs that led to Giza.

👉 Learn more: https://seethis.tv/post/an-egyptologist-explains-5-key-discoveries-about-gizas-great-pyramid

#africa #ancienthistory #archaeology #architecture #boats #buildings #culture #egypt #engineering #geology #geometry #history #jobs #limestone #math #monuments #papyrus #pyramids #stone #technology #tech #womeninstem #work #writing #tksst #video

A 2D representation of a 4D Tesseract. #geometry #sacredgeometry

If you’re at MathFest, be sure to check out the art exhibit. I have a couple of pieces there, including a painting of the geometry of longitudes and a set of bracelets I made with cellular automata. You can see from my first photograph that I’ve done this painting more than once because I wanted to update it for the conference. In doing the second version, I screwed up one of the, illustrations in the center column and so I had to do it twice to get it right. #mathart #geometry

Photo du jour bonjour !

#architecture #urbain #urban #sky #bluesky #bleu #ciel #summer #ete #geometry #géométrie #formes #lignes #lines #up #photo #photography #urbanism #urbanphotography