#geometry

[houghtonlib]

We have just digitized our copy of The First Six Books of Euclid by Oliver Byrne (1847) which uses diagrams of intense color as an aid to learning geometry. Although it sold poorly at the time of publication, it's recognized today as a masterpiece of design and printing.

Typ 805.47.3730

Houghton Library, Harvard University

[sasj]

Geometric Shapes / 250705

[orangeblossombitch]

Namoura ya amoura pt. 2

Way back when the world looked so much softer, and the smells from Tetas kitchen would take root in your memories. Sweet rosewatersyrup and melted butter...

Available on my INPRNT

[garadinervi]

Donald Judd. A catalogue of the Exhibition at the National Gallery of Canada, Ottawa 24 May – 6 July, 1975. Catalogue Raisonné of Paintings, Objects, and Wood-Blocks 1960-1974 / Catalogue de l'exposition à la Galeria nationale du Canada, Ottawa, 24 mai – 6 juillet 1975. Catalogue raisonné de peintures, objets et planches en bois 1960-1974, The National Gallery of Canada for the Corporation of the Nationals Museums of Canada, Ottawa, 1975 [Studio Bruno Tonini, Gussago (BS). Art: © Judd Foundation / ARS, New York]

Preface: Jean Sutherland Boggs Graphic Design: Eiko Emori

↗ Judd Foundation

[machi40h]

[violetfractal]

A circle inscribed in a square covers 79% of the square.

A ball inscribed in a cube fills 52% of the cube.

A 4-ball inscribed in a hypercube fills 31% of the hypercube.

A 5-ball inscribed in a 5-cube fills 16% of the 5-cube.

⋮

A 9-ball inscribed in a 9-cube fills it up less than 1% of the way, yet there’s no room to fit a second ball of the same size without intersecting the first.

⋮

In dimensions 23 and up, you can fit a little cube in the corner of the diagram, such that the cube has a larger volume than the ball!

That's especially disconcerting because the 23-cube has 8,388,608 corners. Even if you inscribe the little red cubes in all eight million corners, your big cube will still be 99.5% empty space.

[charlesoberonn]

Does Tumblr know about the travesty that is the optimal (as far as we know) configuration to pack 17 squares in a larger square?

[389]

One of the iwan ceilings of Fatima Masumeh Shrine in atabki sahn, Qom, Iran

[xponentialdesign]

🔺 Feeling Stripes 🔺 source files

[cosmicportal]

"The universe is written in the language of mathematics, and its characters are triangles, circles, and other geometric figures"

~ Galileo Galilei, Il Saggiatore

[pate-geo-enthusiast]

[sasj]

Geometric Shapes / 250704

[szimmetria-airtemmizs]

Now with rotations.

I made a gif not long ago (see below). Many of you expressed that it was "deeply uncomfortable" and "upsetting". I hope this new one will calm your feelings.

[rbrooksdesign]

∑FEETc: Divisor Matrix Table (DMT): Source Of All Serendipity 4, digital + acrylic painting, July 4, 2025, Reginald Brooks



The source of all serendipity (Butterfly Effect) comes from the same (∑FEETc) as that that develops from careful planning.

∑FEETc

*Fractal

*Entanglement

*Entropy

*Time

*Consciousness

[garadinervi]

Giovanni Pintori, Schema frecce colore, (sketch), 1956 [Archivio privato Paolo Pintori. © Matteo Zarbo, Milano]

Exhibitions: Giovanni Pintori (1912-1999). Pubblicità come arte / Advertising as art, Curated by Chiara Gatti and Nicoletta Ossanna Cavadini, m.a.x. museo, Centro Culturale Chiasso, Chiasso, October 7, 2024 – February 16, 2025 (then March 2, 2025); MAN – Museo d'Arte di Nuoro, Nuoro, March 21 – June 15, 2025

Catalogue: Giovanni Pintori (1912-1999). Pubblicità come arte / Advertising as art, Edited by Chiara Gatti and Nicoletta Ossanna Cavadini, Texts by Chiara Gatti, Mario Piazza, Davide Cadeddu, Nicoletta Ossanna Cavadini, Luigi Sansone, Angela Madesani, Silvana Editoriale, Cinisello Balsamo (MI), 2024