Abakcus https://abakcus.com Math, science, education, and design: videos, tools, books, articles, lists, and gadgets — hand-picked, one calm place. en-us Wed, 13 May 2026 00:00:00 GMT Overview: A New Perspective of Earth https://abakcus.com/books/overview-benjamin-grant https://abakcus.com/books/overview-benjamin-grant 200 satellite images. Beauty first, then the caption. The gap between those two things is where the book lives.

200 satellite images. Beauty first, then the caption. The gap between those two things is where the book lives.

Read on Abakcus →

]]>
Wed, 13 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Infinite Powers https://abakcus.com/books/infinite-powers https://abakcus.com/books/infinite-powers Newton didn't invent calculus. Archimedes was doing it in the third century BC. Strogatz proves this — chapter by chapter.

Newton didn't invent calculus. Archimedes was doing it in the third century BC. Strogatz proves this — chapter by chapter.

Read on Abakcus →

]]>
Wed, 13 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Save Everything. Organize Nothing. https://abakcus.com/tools/mymind https://abakcus.com/tools/mymind mymind auto-tags every link, image, and note you save — then finds them when you search. No folders, no tags, no system. You throw things at it; it organizes and makes them searchable. A rare app that actually keeps its promise.

mymind auto-tags every link, image, and note you save — then finds them when you search. No folders, no tags, no system. You throw things at it; it organizes and makes them searchable. A rare app that actually keeps its promise.

Read on Abakcus →

]]>
Mon, 11 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Every Minute Has a Book https://abakcus.com/tools/literature-clock https://abakcus.com/tools/literature-clock There are 1,440 minutes in a day. Literature Clock matches each one to a passage from world literature. Open the site: find out it's 2:47 because Tolstoy already wrote that minute.

There are 1,440 minutes in a day. Literature Clock matches each one to a passage from world literature. Open the site: find out it's 2:47 because Tolstoy already wrote that minute.

Read on Abakcus →

]]>
Sun, 10 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
How Do You Like Them Apples? https://abakcus.com/videos/good-will-hunting https://abakcus.com/videos/good-will-hunting A janitor at MIT solves a research-level math problem on a hallway chalkboard. The film is not about the mathematics. Gus Van Sant, 1997.

A janitor at MIT solves a research-level math problem on a hallway chalkboard. The film is not about the mathematics. Gus Van Sant, 1997.

Read on Abakcus →

]]>
Sun, 10 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
What One Fool Can Do, Another Can https://abakcus.com/tools/calculus-made-easy https://abakcus.com/tools/calculus-made-easy Silvanus P. Thompson wrote a calculus book in 1910. Someone converted it to HTML by hand. It's free and it still works.

Silvanus P. Thompson wrote a calculus book in 1910. Someone converted it to HTML by hand. It's free and it still works.

Read on Abakcus →

]]>
Sun, 10 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Two Thousand Flashes on a Map https://abakcus.com/videos/trinity https://abakcus.com/videos/trinity Orbital Mechanics mapped every nuclear detonation from the Trinity test to North Korea’s 2009 tests. Fourteen minutes. Two thousand flashes. The count is the argument.

Orbital Mechanics mapped every nuclear detonation from the Trinity test to North Korea’s 2009 tests. Fourteen minutes. Two thousand flashes. The count is the argument.

Read on Abakcus →

]]>
Fri, 08 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Your Favorite Fry Is a Geometry Problem https://abakcus.com/tools/fry-universe https://abakcus.com/tools/fry-universe A shoestring fry and a steak fry are made from the same ingredient, cooked the same way. The only difference is the cut. Chris Williams built a 3D tool to show you exactly what that difference is.

A shoestring fry and a steak fry are made from the same ingredient, cooked the same way. The only difference is the cut. Chris Williams built a 3D tool to show you exactly what that difference is.

Read on Abakcus →

]]>
Thu, 07 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Testing Board Assumed They Cheated https://abakcus.com/videos/stand-and-deliver https://abakcus.com/videos/stand-and-deliver Stand and Deliver tells the story of Jaime Escalante. But the real story is harder, darker, and far more interesting than the film lets on.

Stand and Deliver tells the story of Jaime Escalante. But the real story is harder, darker, and far more interesting than the film lets on.

Read on Abakcus →

]]>
Thu, 07 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Islamic Geometric Patterns https://abakcus.com/books/islamic-geometric-patterns-eric-broug https://abakcus.com/books/islamic-geometric-patterns-eric-broug A compass, a ruler, and 1,400 years of quiet geometry. 23 patterns from real buildings — from the Great Mosque of Córdoba to Samarkand.

A compass, a ruler, and 1,400 years of quiet geometry. 23 patterns from real buildings — from the Great Mosque of Córdoba to Samarkand.

Read on Abakcus →

]]>
Thu, 07 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Written in Prison. In Print for a Century. https://abakcus.com/books/introduction-to-mathematical-philosophy https://abakcus.com/books/introduction-to-mathematical-philosophy In 1918, Bertrand Russell was given a cell, a desk, and six months with nothing urgent to do. He used them to write the clearest introduction to the foundations of mathematics ever published.

In 1918, Bertrand Russell was given a cell, a desk, and six months with nothing urgent to do. He used them to write the clearest introduction to the foundations of mathematics ever published.

Read on Abakcus →

]]>
Wed, 06 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Your Name, Written by Earth https://abakcus.com/tools/your-name-in-landsat https://abakcus.com/tools/your-name-in-landsat NASA spells out your name using real Landsat satellite images. Every letter is a real place, 700 km below, with coordinates you can look up.

NASA spells out your name using real Landsat satellite images. Every letter is a real place, 700 km below, with coordinates you can look up.

Read on Abakcus →

]]>
Tue, 05 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
A Drawing That Erases Itself https://abakcus.com/videos/yuki-kawae https://abakcus.com/videos/yuki-kawae Yuki Kawae spends hours raking patterns into a sand garden in his apartment. Then he smooths them away. 23 minutes. No narration. The arithmetic stops.

Yuki Kawae spends hours raking patterns into a sand garden in his apartment. Then he smooths them away. 23 minutes. No narration. The arithmetic stops.

Read on Abakcus →

]]>
Tue, 05 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Statistics You Can Watch Think https://abakcus.com/tools/seeing-theory https://abakcus.com/tools/seeing-theory A Brown University student made probability visible — and changed how a generation understands statistics.

A Brown University student made probability visible — and changed how a generation understands statistics.

Read on Abakcus →

]]>
Mon, 04 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Equations That Forgot They Were Equations https://abakcus.com/articles/alejandro-guijarro-momentum https://abakcus.com/articles/alejandro-guijarro-momentum Alejandro Guijarro spent three years photographing quantum mechanics blackboards at Cambridge, Stanford, CERN, and Oxford. No staging. Just the board.

Alejandro Guijarro spent three years photographing quantum mechanics blackboards at Cambridge, Stanford, CERN, and Oxford. No staging. Just the board.

Read on Abakcus →

]]>
Mon, 04 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
How Magritte Broke Perception Without Breaking a Single Rule https://abakcus.com/articles/magritte-blank-signature https://abakcus.com/articles/magritte-blank-signature In 1965, Magritte painted a woman on horseback through a forest. Everything is real. Nothing is possible. A 2023 study in the Journal of Vision finally explains exactly how he did it.

In 1965, Magritte painted a woman on horseback through a forest. Everything is real. Nothing is possible. A 2023 study in the Journal of Vision finally explains exactly how he did it.

Read on Abakcus →

]]>
Sun, 03 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Drawing a Chair 64 Times https://abakcus.com/articles/erich-dieckmann-metal-tube-chair https://abakcus.com/articles/erich-dieckmann-metal-tube-chair Erich Dieckmann's 1931 morphological matrix: 8 rows, 64 variations, from rigid geometry to near-abstraction. The clearest single-page argument for design research the Bauhaus produced.

Erich Dieckmann's 1931 morphological matrix: 8 rows, 64 variations, from rigid geometry to near-abstraction. The clearest single-page argument for design research the Bauhaus produced.

Read on Abakcus →

]]>
Sat, 02 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Feynman on How Math Should Be Taught to Children https://abakcus.com/articles/feynman-math-education https://abakcus.com/articles/feynman-math-education In 1965, Feynman read 500 pounds of math textbooks and wrote the sharpest critique in the history of mathematics education. Sixty years later, the problem is still with us.

In 1965, Feynman read 500 pounds of math textbooks and wrote the sharpest critique in the history of mathematics education. Sixty years later, the problem is still with us.

Read on Abakcus →

]]>
Fri, 01 May 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Astronomy Textbook That Outlived an Empire https://abakcus.com/articles/al-jaghmini-astronomy-manuscript https://abakcus.com/articles/al-jaghmini-astronomy-manuscript Written one year before its author died in the Mongol conquest of Khwarazm, al-Jaghmini's Mulakhkhas became the most widely copied Arabic astronomy textbook ever made.

Written one year before its author died in the Mongol conquest of Khwarazm, al-Jaghmini's Mulakhkhas became the most widely copied Arabic astronomy textbook ever made.

Read on Abakcus →

]]>
Thu, 30 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Rafael Araujo's 20+ Mesmerizing Geometrical Masterpieces https://abakcus.com/rafael-araujo-geometrical-masterpieces https://abakcus.com/rafael-araujo-geometrical-masterpieces Rafael Araujo spends 100 hours on a single drawing — no software, no undo. A selection of his most stunning hand-drawn golden ratio illustrations.

Rafael Araujo spends 100 hours on a single drawing — no software, no undo. A selection of his most stunning hand-drawn golden ratio illustrations.

Read on Abakcus →

]]>
Wed, 29 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Proof That 0.999… Is Exactly Equal to 1 https://abakcus.com/articles/0999-equals-1 https://abakcus.com/articles/0999-equals-1 It looks strange. It feels wrong. But 0.999… is not ‘almost 1’ — it is exactly 1. Here is the geometric series proof that settles the matter in five steps.

It looks strange. It feels wrong. But 0.999… is not ‘almost 1’ — it is exactly 1. Here is the geometric series proof that settles the matter in five steps.

Read on Abakcus →

]]>
Mon, 27 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
24 Beautiful Physics Poster Designs That Inspire You https://abakcus.com/24-beautiful-physics-poster-designs-that-inspire-you https://abakcus.com/24-beautiful-physics-poster-designs-that-inspire-you String theory, quantum mechanics, entropy, general relativity — 24 poster designs by 2046 Print Shop that turn physics concepts into beautiful objects worth hanging on a wall.

String theory, quantum mechanics, entropy, general relativity — 24 poster designs by 2046 Print Shop that turn physics concepts into beautiful objects worth hanging on a wall.

Read on Abakcus →

]]>
Sun, 26 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
25 Beautiful Math Documentaries to Make Students Love Mathematics https://abakcus.com/25-beautiful-math-documentaries-to-love-math https://abakcus.com/25-beautiful-math-documentaries-to-love-math A Trip to Infinity, The Proof, N Is a Number — 25 documentaries that show the other face of mathematics: obsession, beauty, and the particular madness of chasing a question.

A Trip to Infinity, The Proof, N Is a Number — 25 documentaries that show the other face of mathematics: obsession, beauty, and the particular madness of chasing a question.

Read on Abakcus →

]]>
Sat, 25 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Five YouTube Channels That Make You Love Mathematics https://abakcus.com/17-best-math-youtube-channels-to-study-mathematics https://abakcus.com/17-best-math-youtube-channels-to-study-mathematics Numberphile, 3Blue1Brown, Eddie Woo, Socratica, Khan Academy — five YouTube channels built by people who loved mathematics first, and only then turned the camera on.

Numberphile, 3Blue1Brown, Eddie Woo, Socratica, Khan Academy — five YouTube channels built by people who loved mathematics first, and only then turned the camera on.

Read on Abakcus →

]]>
Fri, 24 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Kung Fu Motion Visualization: Hareketin İçindeki Yapı https://abakcus.com/videos/the-physics-of-kung-fu https://abakcus.com/videos/the-physics-of-kung-fu Tobias Gremmler turned motion-capture data from Kung Fu masters into five moving sculptures. Veri heykel oldu; zaman kumaş, hız madde.

Tobias Gremmler turned motion-capture data from Kung Fu masters into five moving sculptures. Veri heykel oldu; zaman kumaş, hız madde.

Read on Abakcus →

]]>
Wed, 22 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Kenneth Snelson's Needle Tower: 60 Feet, Zero Contact https://abakcus.com/articles/snelson-needle-tower https://abakcus.com/articles/snelson-needle-tower 60 feet tall, 14 inches of ground contact. No aluminum tube touches another. The whole thing holds up because of what isn't there.

60 feet tall, 14 inches of ground contact. No aluminum tube touches another. The whole thing holds up because of what isn't there.

Read on Abakcus →

]]>
Tue, 21 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
A Number That Cannot Be the Smallest https://abakcus.com/articles/sqrt2-irrational https://abakcus.com/articles/sqrt2-irrational Most proofs that √2 is irrational use prime factorization. This one uses something simpler: if a smallest natural number witnessing rationality existed, you could always find a smaller one.

Most proofs that √2 is irrational use prime factorization. This one uses something simpler: if a smallest natural number witnessing rationality existed, you could always find a smaller one.

Read on Abakcus →

]]>
Tue, 21 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Patterns No Hand Could Have Drawn https://abakcus.com/articles/specimens-fancy-turning https://abakcus.com/articles/specimens-fancy-turning Victorian ornamental turning produced spirograph-like geometric forms of extraordinary precision — not drawn, not sculpted, but calculated by a machine that ran on mathematics.

Victorian ornamental turning produced spirograph-like geometric forms of extraordinary precision — not drawn, not sculpted, but calculated by a machine that ran on mathematics.

Read on Abakcus →

]]>
Tue, 21 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Woman Who Was Right https://abakcus.com/articles/marilyn-vos-savant https://abakcus.com/articles/marilyn-vos-savant In 1990, Marilyn vos Savant answered a probability puzzle correctly. Nearly 10,000 people — many of them academics — wrote to tell her she was wrong. She was not.

In 1990, Marilyn vos Savant answered a probability puzzle correctly. Nearly 10,000 people — many of them academics — wrote to tell her she was wrong. She was not.

Read on Abakcus →

]]>
Sun, 19 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Color the Forest Already Had https://abakcus.com/tools/mushroom-color-atlas https://abakcus.com/tools/mushroom-color-atlas 825 colors, 40+ dye mushrooms. Julie Beeler's atlas of natural color that exists only because a specific fungus grew in a specific place.

825 colors, 40+ dye mushrooms. Julie Beeler's atlas of natural color that exists only because a specific fungus grew in a specific place.

Read on Abakcus →

]]>
Sun, 19 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
299 Products. One Graveyard. https://abakcus.com/tools/killed-by-google https://abakcus.com/tools/killed-by-google Google has retired 299 products since 2006. Average lifespan: 5.2 years. The pattern behind the shutdowns has run twice — and will run again.

Google has retired 299 products since 2006. Average lifespan: 5.2 years. The pattern behind the shutdowns has run twice — and will run again.

Read on Abakcus →

]]>
Sun, 19 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
12,795 Objects, One Life https://abakcus.com/tools/barbara-iweins-katalog https://abakcus.com/tools/barbara-iweins-katalog Barbara Iweins photographed every single thing she owns — all 12,795 of them. The spreadsheet is the easy part to explain.

Barbara Iweins photographed every single thing she owns — all 12,795 of them. The spreadsheet is the easy part to explain.

Read on Abakcus →

]]>
Sun, 19 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Every Raindrop Has a Destination https://abakcus.com/tools/river-runner https://abakcus.com/tools/river-runner River Runner lets you click anywhere on a map and watch the exact downstream journey of a raindrop — from where it lands to the ocean.

River Runner lets you click anywhere on a map and watch the exact downstream journey of a raindrop — from where it lands to the ocean.

Read on Abakcus →

]]>
Sun, 19 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Cymatics: Sound Has a Shape https://abakcus.com/videos/cymatics-nigel-stanford https://abakcus.com/videos/cymatics-nigel-stanford Nigel Stanford spent months building instruments that don't play music — they reveal it. Five physics experiments, one music video, and the wave equation made visible.

Nigel Stanford spent months building instruments that don't play music — they reveal it. Five physics experiments, one music video, and the wave equation made visible.

Read on Abakcus →

]]>
Sun, 19 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Four tarts, one sculptor, and the philosophy of disappearance https://abakcus.com/articles/dinara-kasko-kinetic-tarts https://abakcus.com/articles/dinara-kasko-kinetic-tarts Dinara Kasko and artist José Margulis built kinetic sculptures from CNC-cut chocolate. They were assembled, admired, and eaten — which was the point.

Dinara Kasko and artist José Margulis built kinetic sculptures from CNC-cut chocolate. They were assembled, admired, and eaten — which was the point.

Read on Abakcus →

]]>
Sun, 19 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Feynman Technique: A Complete Guide https://abakcus.com/articles/feynman-technique https://abakcus.com/articles/feynman-technique The four-step learning method developed by Nobel Prize-winning physicist Richard Feynman. How it works, why it works, and how to apply it to anything.

The four-step learning method developed by Nobel Prize-winning physicist Richard Feynman. How it works, why it works, and how to apply it to anything.

Read on Abakcus →

]]>
Sat, 18 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The Mathematics of Sudoku https://abakcus.com/articles/sudoku-mathematics https://abakcus.com/articles/sudoku-mathematics On counting all valid 9×9 grids (6.7 sextillion), solving algorithms that work on paper, and why Sudoku is fundamentally a graph coloring problem.

On counting all valid 9×9 grids (6.7 sextillion), solving algorithms that work on paper, and why Sudoku is fundamentally a graph coloring problem.

Read on Abakcus →

]]>
Fri, 17 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The free kick that took 13 years to explain https://abakcus.com/videos/roberto-carlos-free-kick https://abakcus.com/videos/roberto-carlos-free-kick On June 3, 1997, Roberto Carlos kicked a ball at 136 km/h spinning at 14 revolutions per second. The Magnus effect bent it around a wall into the net from 35 metres.

On June 3, 1997, Roberto Carlos kicked a ball at 136 km/h spinning at 14 revolutions per second. The Magnus effect bent it around a wall into the net from 35 metres.

Read on Abakcus →

]]>
Thu, 16 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Inside Roger Penrose's notebook https://abakcus.com/articles/penrose-journal https://abakcus.com/articles/penrose-journal Handwritten pages of spinor algebra, twistor diagrams, Penrose tiling prototypes, and Cayley algebra — alongside programs for a 1978 pocket calculator.

Handwritten pages of spinor algebra, twistor diagrams, Penrose tiling prototypes, and Cayley algebra — alongside programs for a 1978 pocket calculator.

Read on Abakcus →

]]>
Wed, 15 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The world's hardest Sudoku — 23 clues, one solution https://abakcus.com/articles/inkala-sudoku https://abakcus.com/articles/inkala-sudoku Arto Inkala's 2012 puzzle: 4.5% trivialization rate, 153 human attempts, three months to design — and what “hardest” actually measures.

Arto Inkala's 2012 puzzle: 4.5% trivialization rate, 153 human attempts, three months to design — and what “hardest” actually measures.

Read on Abakcus →

]]>
Tue, 14 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Seven questions, June 7, 1869 https://abakcus.com/articles/mit-1869 https://abakcus.com/articles/mit-1869 MIT's first algebra entrance exam. The questions haven't changed. Everything else — tuition, class size, acceptance rate — is unrecognisable.

MIT's first algebra entrance exam. The questions haven't changed. Everything else — tuition, class size, acceptance rate — is unrecognisable.

Read on Abakcus →

]]>
Mon, 13 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
A tree on a barge, crossing the Black Sea https://abakcus.com/videos/taming-the-garden https://abakcus.com/videos/taming-the-garden Salomé Jashi's Taming the Garden follows hundreds of ancient trees uprooted for a Georgian billionaire's private garden. One of the most haunting films of the decade.

Salomé Jashi's Taming the Garden follows hundreds of ancient trees uprooted for a Georgian billionaire's private garden. One of the most haunting films of the decade.

Read on Abakcus →

]]>
Sun, 12 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
13 lies before the neck gives out https://abakcus.com/articles/pinocchio https://abakcus.com/articles/pinocchio A Leicester paper applied Newtonian mechanics to Pinocchio’s nose — exponential growth, oak, and a hard limit at thirteen.

A Leicester paper applied Newtonian mechanics to Pinocchio’s nose — exponential growth, oak, and a hard limit at thirteen.

Read on Abakcus →

]]>
Sat, 11 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The chip that required a geometry lesson https://abakcus.com/articles/geometry-behind-pringles https://abakcus.com/articles/geometry-behind-pringles A Pringle is a hyperbolic paraboloid — stack, snap, can, and factory physics.

A Pringle is a hyperbolic paraboloid — stack, snap, can, and factory physics.

Read on Abakcus →

]]>
Fri, 10 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The notebook where general relativity didn't work yet https://abakcus.com/articles/zurich-notebook https://abakcus.com/articles/zurich-notebook Zurich, 1912–1913 — puzzles, line elements, wrong turns, and the path to November 1915.

Zurich, 1912–1913 — puzzles, line elements, wrong turns, and the path to November 1915.

Read on Abakcus →

]]>
Thu, 09 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
The legislature that tried to vote on π https://abakcus.com/articles/indiana-pi-bill https://abakcus.com/articles/indiana-pi-bill 1897 — Indiana’s House passed a bill that implied π = 3.2. Then a mathematician walked in.

1897 — Indiana’s House passed a bill that implied π = 3.2. Then a mathematician walked in.

Read on Abakcus →

]]>
Wed, 08 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Four equations on a wall https://abakcus.com/articles/maxwell-warsaw https://abakcus.com/articles/maxwell-warsaw Maxwell in stone on Warsaw’s physics library — integral form, street level, no apologies.

Maxwell in stone on Warsaw’s physics library — integral form, street level, no apologies.

Read on Abakcus →

]]>
Tue, 07 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
One fox. Four years. Zero apologies. https://abakcus.com/articles/rambo-fox https://abakcus.com/articles/rambo-fox A single red fox in the Pilliga vs. traps, baits, dogs — and a rewritten plan.

A single red fox in the Pilliga vs. traps, baits, dogs — and a rewritten plan.

Read on Abakcus →

]]>
Mon, 06 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
Paper that stands up https://abakcus.com/articles/billingsley-euclid https://abakcus.com/articles/billingsley-euclid Henry Billingsley’s 1570 English Euclid — paper solids that still beat a headset

Henry Billingsley’s 1570 English Euclid — paper solids that still beat a headset

Read on Abakcus →

]]>
Sun, 05 Apr 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)
A shelf built on a sequence https://abakcus.com/articles/fibonacci-shelf https://abakcus.com/articles/fibonacci-shelf Peng Wang’s modular shelf — six rectangles, one famous sequence

Peng Wang’s modular shelf — six rectangles, one famous sequence

Read on Abakcus →

]]>
Wed, 18 Mar 2026 00:00:00 GMT ali@abakcus.com (Ali Kaya)