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    <title>Abakcus</title>
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    <description>Math, science, education, and design: videos, tools, books, articles, lists, and gadgets — hand-picked, one calm place.</description>
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    <lastBuildDate>Tue, 09 Jun 2026 00:00:00 GMT</lastBuildDate>
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    <item>
      <title>The Two Whales That Drew a Fibonacci Spiral</title>
      <link>https://abakcus.com/videos/humpback-whales-fibonacci-bubbles</link>
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      <description>A drone caught two humpback whales tracing a spiral beneath the cold water off Antarctica. One word came to mind immediately: Fibonacci.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Humpback%20whales%20fibonacci%20bubbles.webp" alt="The Two Whales That Drew a Fibonacci Spiral" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>A drone caught two humpback whales tracing a spiral beneath the cold water off Antarctica. One word came to mind immediately: Fibonacci.</p><p><a href="https://abakcus.com/videos/humpback-whales-fibonacci-bubbles">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Tue, 09 Jun 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>The Best Math Movies: Lives Written on the Board</title>
      <link>https://abakcus.com/the-best-math-movies</link>
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      <description>A Beautiful Mind, Good Will Hunting, Pi, Proof, The Imitation Game, Hidden Figures — twenty-three films where the mathematics is never really about the numbers, but about the people wrestling with them.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/The%20Best%20Math%20Movies.webp" alt="The Best Math Movies: Lives Written on the Board" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>A Beautiful Mind, Good Will Hunting, Pi, Proof, The Imitation Game, Hidden Figures — twenty-three films where the mathematics is never really about the numbers, but about the people wrestling with them.</p><p><a href="https://abakcus.com/the-best-math-movies">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Mon, 08 Jun 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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      <title>Life&apos;s Devices</title>
      <link>https://abakcus.com/books/lifes-devices</link>
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      <description>No creature ever escaped gravity, water, or air. Vogel&apos;s classic of biomechanics reads the living world as a structure under load — and changes how you see a tree, a fish, or a falling mouse.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/Life's%20Devices-%20The%20Physical%20World%20of%20Animals%20and%20Plants%20by%20Steven%20Vogel.webp" alt="Life&apos;s Devices" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>No creature ever escaped gravity, water, or air. Vogel&apos;s classic of biomechanics reads the living world as a structure under load — and changes how you see a tree, a fish, or a falling mouse.</p><p><a href="https://abakcus.com/books/lifes-devices">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Wed, 03 Jun 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>99 Variations on a Proof</title>
      <link>https://abakcus.com/books/99-variations-on-a-proof</link>
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      <description>One unremarkable cubic equation, proved ninety-nine different ways. Ording proves that mathematics is, from beginning to end, a matter of style.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/99%20Variations%20on%20a%20Proof%20by%20Philip%20Ording.webp" alt="99 Variations on a Proof" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>One unremarkable cubic equation, proved ninety-nine different ways. Ording proves that mathematics is, from beginning to end, a matter of style.</p><p><a href="https://abakcus.com/books/99-variations-on-a-proof">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Asobi: Newton&apos;s Cradle, Reinvented with Light</title>
      <link>https://abakcus.com/videos/asobi-yasutoki-kariya</link>
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      <description>Eleven light bulbs. Two hidden pistons. One physics law from 1687. Yasutoki Kariya&apos;s senior thesis at Musashino Art University made Newton and Edison share the same sentence.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Asobi%20Newton's%20Cradle.webp" alt="Asobi: Newton&apos;s Cradle, Reinvented with Light" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Eleven light bulbs. Two hidden pistons. One physics law from 1687. Yasutoki Kariya&apos;s senior thesis at Musashino Art University made Newton and Edison share the same sentence.</p><p><a href="https://abakcus.com/videos/asobi-yasutoki-kariya">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sat, 30 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Here We Are</title>
      <link>https://abakcus.com/videos/here-we-are</link>
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      <description>Oliver Jeffers began this picture book the night his son was born. In 2020 Apple TV+ turned it into a 36-minute animated short narrated by Meryl Streep — a film that makes the scale of the universe feel intimate.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Here%20We%20Are-%20Notes%20for%20Living%20on%20Planet%20Earth.webp" alt="Here We Are" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Oliver Jeffers began this picture book the night his son was born. In 2020 Apple TV+ turned it into a 36-minute animated short narrated by Meryl Streep — a film that makes the scale of the universe feel intimate.</p><p><a href="https://abakcus.com/videos/here-we-are">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Fri, 29 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Five Math Movies That Actually Happened</title>
      <link>https://abakcus.com/five-math-movies-that-actually-happened</link>
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      <description>A Beautiful Mind, Stand and Deliver, Hidden Figures, Moneyball, X+Y — five films where the mathematics is not decoration but the reason the movie exists, each adapted from a documented real life.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Five%20Math%20Movies%20That%20Actually%20Happened%202.webp" alt="Five Math Movies That Actually Happened" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>A Beautiful Mind, Stand and Deliver, Hidden Figures, Moneyball, X+Y — five films where the mathematics is not decoration but the reason the movie exists, each adapted from a documented real life.</p><p><a href="https://abakcus.com/five-math-movies-that-actually-happened">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Fri, 29 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>The Ghost Who Solved a Theorem</title>
      <link>https://abakcus.com/articles/thomason-trobaugh</link>
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      <description>Ninety-four days after his friend died, Robert Thomason dreamed the idea that cracked a fifteen-year problem in algebraic K-theory — and listed the dead man as coauthor.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/The%20Ghost%20Who%20Solved%20a%20Theorem.webp" alt="The Ghost Who Solved a Theorem" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Ninety-four days after his friend died, Robert Thomason dreamed the idea that cracked a fifteen-year problem in algebraic K-theory — and listed the dead man as coauthor.</p><p><a href="https://abakcus.com/articles/thomason-trobaugh">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Thu, 28 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>23 Mathematics Books Dedicated to a Single Problem</title>
      <link>https://abakcus.com/book-lists/math-books-dedicated-to-a-single-problem</link>
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      <description>Riemann, Fermat, Poincaré, Goldbach, Gödel — twenty-three books that each orbit a single mathematical problem, a single question, sometimes a single number.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/23%20Mathematics%20Books%20Dedicated%20to%20a%20Single%20Problem.webp" alt="23 Mathematics Books Dedicated to a Single Problem" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Riemann, Fermat, Poincaré, Goldbach, Gödel — twenty-three books that each orbit a single mathematical problem, a single question, sometimes a single number.</p><p><a href="https://abakcus.com/book-lists/math-books-dedicated-to-a-single-problem">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Thu, 28 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Jodorowsky’s Dune</title>
      <link>https://abakcus.com/videos/jodorowskys-dune</link>
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      <description>The greatest film never made — and the failure that shaped everything after it. Frank Pavich’s 2013 documentary on Alejandro Jodorowsky’s unfilmed Dune.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Jodorowsky%E2%80%99s%20Dune.webp" alt="Jodorowsky’s Dune" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>The greatest film never made — and the failure that shaped everything after it. Frank Pavich’s 2013 documentary on Alejandro Jodorowsky’s unfilmed Dune.</p><p><a href="https://abakcus.com/videos/jodorowskys-dune">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Wed, 27 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>14 Mathematics Books Written by Artists, Architects, and Writers</title>
      <link>https://abakcus.com/book-lists/math-books-artists-architects-writers</link>
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      <description>Pacioli, Dürer, Carroll, Borges, Xenakis — fourteen books on mathematics written by painters, composers, architects, and novelists who never held a faculty position.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/14%20Mathematics%20Books%20Written%20by%20Artists%2C%20Architects%2C%20and%20Writers.webp" alt="14 Mathematics Books Written by Artists, Architects, and Writers" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Pacioli, Dürer, Carroll, Borges, Xenakis — fourteen books on mathematics written by painters, composers, architects, and novelists who never held a faculty position.</p><p><a href="https://abakcus.com/book-lists/math-books-artists-architects-writers">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Wed, 27 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Real Time: Sweeper&apos;s Clock</title>
      <link>https://abakcus.com/videos/sweepers-clock</link>
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      <description>Two men spend twelve hours pushing piles of debris around an empty floor. The result is a working clock.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Real%20Time-%20Sweeper's%20Clock.webp" alt="Real Time: Sweeper&apos;s Clock" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Two men spend twelve hours pushing piles of debris around an empty floor. The result is a working clock.</p><p><a href="https://abakcus.com/videos/sweepers-clock">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Mon, 25 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Nicolas Bourbaki</title>
      <link>https://abakcus.com/articles/nicolas-bourbaki</link>
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      <description>Nicolas Bourbaki is one of the most influential mathematicians of the twentieth century. There is one problem: no such person ever lived.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Nicolas%20Bourbaki.webp" alt="Nicolas Bourbaki" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Nicolas Bourbaki is one of the most influential mathematicians of the twentieth century. There is one problem: no such person ever lived.</p><p><a href="https://abakcus.com/articles/nicolas-bourbaki">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sun, 24 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>A Mathematician&apos;s Apology</title>
      <link>https://abakcus.com/books/a-mathematicians-apology</link>
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      <description>Hardy at 62, after a heart attack, knowing his mathematical life was over. Pure mathematics as art — the most honest book ever written by a working mathematician.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/A%20Mathematician's%20Apology.webp" alt="A Mathematician&apos;s Apology" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Hardy at 62, after a heart attack, knowing his mathematical life was over. Pure mathematics as art — the most honest book ever written by a working mathematician.</p><p><a href="https://abakcus.com/books/a-mathematicians-apology">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sun, 24 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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      <title>Why Do Fireflies Flash in Unison?</title>
      <link>https://abakcus.com/articles/fireflies-synchronization</link>
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      <description>Every May, the forests of Tennessee pulse with yellow-green light for two weeks. Tens of thousands of Photinus carolinus fireflies synchronize their flashes without any conductor — pure mathematics in action.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Why%20Do%20Fireflies%20Flash%20in%20Unison_.webp" alt="Why Do Fireflies Flash in Unison?" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Every May, the forests of Tennessee pulse with yellow-green light for two weeks. Tens of thousands of Photinus carolinus fireflies synchronize their flashes without any conductor — pure mathematics in action.</p><p><a href="https://abakcus.com/articles/fireflies-synchronization">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sat, 23 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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      <title>The Geometry of Type: 100 Typefaces, Dissected</title>
      <link>https://abakcus.com/books/geometry-of-type</link>
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      <description>You have been looking at letters your entire life. You have never seen them. Stephen Coles fixes that in 256 pages — one spread per typeface, every bowl and counter annotated.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/The%20Geometry%20of%20Type.webp" alt="The Geometry of Type: 100 Typefaces, Dissected" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>You have been looking at letters your entire life. You have never seen them. Stephen Coles fixes that in 256 pages — one spread per typeface, every bowl and counter annotated.</p><p><a href="https://abakcus.com/books/geometry-of-type">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sat, 23 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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      <title>Mr. Finch Explains Pi to a Classroom</title>
      <link>https://abakcus.com/videos/finch-pi-explanation</link>
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      <description>Harold Finch steps to a chalkboard and delivers one of the most moving speeches about mathematics ever written for American television — and one claim that mathematicians still cannot prove.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Mr.%20Finch%20Explains%20Pi%20to%20a%20Classroom.webp" alt="Mr. Finch Explains Pi to a Classroom" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Harold Finch steps to a chalkboard and delivers one of the most moving speeches about mathematics ever written for American television — and one claim that mathematicians still cannot prove.</p><p><a href="https://abakcus.com/videos/finch-pi-explanation">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Fri, 22 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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      <title>32 Metronomes and the Strange Sympathy</title>
      <link>https://abakcus.com/videos/metronome-synchronization</link>
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      <description>Start 32 metronomes at different times. Walk away. Come back in three minutes. Physics will have done the rest.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/32%20Metronomes%20and%20the%20Strange%20Sympathy.webp" alt="32 Metronomes and the Strange Sympathy" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Start 32 metronomes at different times. Walk away. Come back in three minutes. Physics will have done the rest.</p><p><a href="https://abakcus.com/videos/metronome-synchronization">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Fri, 22 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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      <title>The ABCs of Triangle, Square, Circle</title>
      <link>https://abakcus.com/books/abcs-triangle-square-circle</link>
      <guid isPermaLink="true">https://abakcus.com/books/abcs-triangle-square-circle</guid>
      <description>Sixty-nine pages on the shapes that rewired twentieth-century design. Still the sharpest Bauhaus primer ever written.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/The%20ABCs%20of%20Triangle%2C%20Square%2C%20Circle.webp" alt="The ABCs of Triangle, Square, Circle" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Sixty-nine pages on the shapes that rewired twentieth-century design. Still the sharpest Bauhaus primer ever written.</p><p><a href="https://abakcus.com/books/abcs-triangle-square-circle">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/The%20ABCs%20of%20Triangle%2C%20Square%2C%20Circle.webp" type="image/webp" length="0" />
      <pubDate>Fri, 22 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Pablo Carlos Budassi’s Logarithmic Map of the Universe</title>
      <link>https://abakcus.com/articles/budassi-universe-map</link>
      <guid isPermaLink="true">https://abakcus.com/articles/budassi-universe-map</guid>
      <description>How one image fit the entire observable universe — 93 billion light-years across — into a circle you can hold. The idea came from folding paper for a birthday party.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Logarithmic%20Map%20of%20the%20Entire%20Known%20Universe%20in%20One%20Image%202.webp" alt="Pablo Carlos Budassi’s Logarithmic Map of the Universe" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>How one image fit the entire observable universe — 93 billion light-years across — into a circle you can hold. The idea came from folding paper for a birthday party.</p><p><a href="https://abakcus.com/articles/budassi-universe-map">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Logarithmic%20Map%20of%20the%20Entire%20Known%20Universe%20in%20One%20Image%202.webp" type="image/webp" length="0" />
      <pubDate>Wed, 20 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Thirteen Gifts That Give Mathematics Itself</title>
      <link>https://abakcus.com/articles/mathematician-gifts</link>
      <guid isPermaLink="true">https://abakcus.com/articles/mathematician-gifts</guid>
      <description>Not the mug with the pi symbol. Thirteen objects — a Galton Board, a Klein bottle, a Helicone — each one built on a real mathematical idea.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Gift%20Ideas%20for%20Mathematicians.webp" alt="Thirteen Gifts That Give Mathematics Itself" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Not the mug with the pi symbol. Thirteen objects — a Galton Board, a Klein bottle, a Helicone — each one built on a real mathematical idea.</p><p><a href="https://abakcus.com/articles/mathematician-gifts">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Gift%20Ideas%20for%20Mathematicians.webp" type="image/webp" length="0" />
      <pubDate>Wed, 20 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>When Did Einstein First Write E = mc²?</title>
      <link>https://abakcus.com/articles/einstein-emc2</link>
      <guid isPermaLink="true">https://abakcus.com/articles/einstein-emc2</guid>
      <description>The world&apos;s most recognized equation did not appear in its familiar form in 1905. The paper trail from Einstein&apos;s journal paper to the 1912 manuscript to the 1946 letter.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Einstein's%20Handwritter%20Letter%20with%20E%3Dmc2%20equation.webp" alt="When Did Einstein First Write E = mc²?" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>The world&apos;s most recognized equation did not appear in its familiar form in 1905. The paper trail from Einstein&apos;s journal paper to the 1912 manuscript to the 1946 letter.</p><p><a href="https://abakcus.com/articles/einstein-emc2">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Einstein's%20Handwritter%20Letter%20with%20E%3Dmc2%20equation.webp" type="image/webp" length="0" />
      <pubDate>Tue, 19 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Walk the International Space Station on Google Street View</title>
      <link>https://abakcus.com/tools/iss-street-view</link>
      <guid isPermaLink="true">https://abakcus.com/tools/iss-street-view</guid>
      <description>Thomas Pesquet brought a Street View camera to the ISS. 420 km above Earth, now navigable from your browser — same corridors, same handrails, same cupola view of the planet below.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Space%20Vehicle%20Mockup%20Facility%20Google%20Maps.webp" alt="Walk the International Space Station on Google Street View" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Thomas Pesquet brought a Street View camera to the ISS. 420 km above Earth, now navigable from your browser — same corridors, same handrails, same cupola view of the planet below.</p><p><a href="https://abakcus.com/tools/iss-street-view">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Space%20Vehicle%20Mockup%20Facility%20Google%20Maps.webp" type="image/webp" length="0" />
      <pubDate>Mon, 18 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Five Books That Teach You to Think Like a Mathematician</title>
      <link>https://abakcus.com/book-lists/five-books-mathematical-thinking</link>
      <guid isPermaLink="true">https://abakcus.com/book-lists/five-books-mathematical-thinking</guid>
      <description>Mathematical thinking is a skill, not a talent. Five books that teach proof, logic, and the art of constructing an argument so airtight no counterexample can survive it.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Five%20Books%20That%20Teach%20You%20to%20Think%20Like%20a%20Mathematician.webp" alt="Five Books That Teach You to Think Like a Mathematician" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Mathematical thinking is a skill, not a talent. Five books that teach proof, logic, and the art of constructing an argument so airtight no counterexample can survive it.</p><p><a href="https://abakcus.com/book-lists/five-books-mathematical-thinking">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Five%20Books%20That%20Teach%20You%20to%20Think%20Like%20a%20Mathematician.webp" type="image/webp" length="0" />
      <pubDate>Sat, 16 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Poemotion — Takahiro Kurashima</title>
      <link>https://abakcus.com/videos/poemotion-kurashima</link>
      <guid isPermaLink="true">https://abakcus.com/videos/poemotion-kurashima</guid>
      <description>Two layers of printed lines. One transparent film. No battery, no code — slide it across the page and the geometry comes alive.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Poemotion%20_%20Takahiro%20Kurashima.webp" alt="Poemotion — Takahiro Kurashima" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Two layers of printed lines. One transparent film. No battery, no code — slide it across the page and the geometry comes alive.</p><p><a href="https://abakcus.com/videos/poemotion-kurashima">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Poemotion%20_%20Takahiro%20Kurashima.webp" type="image/webp" length="0" />
      <pubDate>Thu, 14 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Pattern Radio: Whale Songs</title>
      <link>https://abakcus.com/tools/pattern-radio-whale-songs</link>
      <guid isPermaLink="true">https://abakcus.com/tools/pattern-radio-whale-songs</guid>
      <description>Google AI and NOAA opened 8,000 hours of underwater recordings to anyone with a browser. Scroll through a year of ocean. Find the whales.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Pattern%20Radio%20Whale%20%20Songs.webp" alt="Pattern Radio: Whale Songs" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Google AI and NOAA opened 8,000 hours of underwater recordings to anyone with a browser. Scroll through a year of ocean. Find the whales.</p><p><a href="https://abakcus.com/tools/pattern-radio-whale-songs">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Pattern%20Radio%20Whale%20%20Songs.webp" type="image/webp" length="0" />
      <pubDate>Thu, 14 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>The Map of Mathematics</title>
      <link>https://abakcus.com/tools/map-of-mathematics</link>
      <guid isPermaLink="true">https://abakcus.com/tools/map-of-mathematics</guid>
      <description>Quanta Magazine mapped the living frontier of mathematical research — 41 nodes, four territories, every connection a link to original reporting.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/The%20Map%20of%20Mathematics.webp" alt="The Map of Mathematics" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Quanta Magazine mapped the living frontier of mathematical research — 41 nodes, four territories, every connection a link to original reporting.</p><p><a href="https://abakcus.com/tools/map-of-mathematics">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/The%20Map%20of%20Mathematics.webp" type="image/webp" length="0" />
      <pubDate>Thu, 14 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Overview: A New Perspective of Earth</title>
      <link>https://abakcus.com/books/overview-benjamin-grant</link>
      <guid isPermaLink="true">https://abakcus.com/books/overview-benjamin-grant</guid>
      <description>200 satellite images. Beauty first, then the caption. The gap between those two things is where the book lives.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/A%20New%20Perspective%20of%20Earth%20by%20Benjamin%20Grant.webp" alt="Overview: A New Perspective of Earth" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>200 satellite images. Beauty first, then the caption. The gap between those two things is where the book lives.</p><p><a href="https://abakcus.com/books/overview-benjamin-grant">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/A%20New%20Perspective%20of%20Earth%20by%20Benjamin%20Grant.webp" type="image/webp" length="0" />
      <pubDate>Wed, 13 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Infinite Powers</title>
      <link>https://abakcus.com/books/infinite-powers</link>
      <guid isPermaLink="true">https://abakcus.com/books/infinite-powers</guid>
      <description>Newton didn&apos;t invent calculus. Archimedes was doing it in the third century BC. Strogatz proves this — chapter by chapter.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/Infinite%20Powers%20by%20Steven%20Strogatz.webp" alt="Infinite Powers" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Newton didn&apos;t invent calculus. Archimedes was doing it in the third century BC. Strogatz proves this — chapter by chapter.</p><p><a href="https://abakcus.com/books/infinite-powers">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/Infinite%20Powers%20by%20Steven%20Strogatz.webp" type="image/webp" length="0" />
      <pubDate>Wed, 13 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Save Everything. Organize Nothing.</title>
      <link>https://abakcus.com/tools/mymind</link>
      <guid isPermaLink="true">https://abakcus.com/tools/mymind</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/MyMind%203.webp" alt="Save Everything. Organize Nothing." style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/tools/mymind">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/MyMind%203.webp" type="image/webp" length="0" />
      <pubDate>Mon, 11 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Every Minute Has a Book</title>
      <link>https://abakcus.com/tools/literature-clock</link>
      <guid isPermaLink="true">https://abakcus.com/tools/literature-clock</guid>
      <description>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&apos;s 2:47 because Tolstoy already wrote that minute.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Literature%20Clock.png" alt="Every Minute Has a Book" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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&apos;s 2:47 because Tolstoy already wrote that minute.</p><p><a href="https://abakcus.com/tools/literature-clock">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Literature%20Clock.png" type="image/webp" length="0" />
      <pubDate>Sun, 10 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>How Do You Like Them Apples?</title>
      <link>https://abakcus.com/videos/good-will-hunting</link>
      <guid isPermaLink="true">https://abakcus.com/videos/good-will-hunting</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Good%20Will%20Hunting.webp" alt="How Do You Like Them Apples?" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/videos/good-will-hunting">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Good%20Will%20Hunting.webp" type="image/webp" length="0" />
      <pubDate>Sun, 10 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>What One Fool Can Do, Another Can</title>
      <link>https://abakcus.com/tools/calculus-made-easy</link>
      <guid isPermaLink="true">https://abakcus.com/tools/calculus-made-easy</guid>
      <description>Silvanus P. Thompson wrote a calculus book in 1910. Someone converted it to HTML by hand. It&apos;s free and it still works.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Calculus%20Made%20Easy.png" alt="What One Fool Can Do, Another Can" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Silvanus P. Thompson wrote a calculus book in 1910. Someone converted it to HTML by hand. It&apos;s free and it still works.</p><p><a href="https://abakcus.com/tools/calculus-made-easy">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Calculus%20Made%20Easy.png" type="image/webp" length="0" />
      <pubDate>Sun, 10 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Two Thousand Flashes on a Map</title>
      <link>https://abakcus.com/videos/trinity</link>
      <guid isPermaLink="true">https://abakcus.com/videos/trinity</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Trinity%20%E2%80%93%20Visualization%20of%20Nuclear%20Detonations.webp" alt="Two Thousand Flashes on a Map" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/videos/trinity">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Trinity%20%E2%80%93%20Visualization%20of%20Nuclear%20Detonations.webp" type="image/webp" length="0" />
      <pubDate>Fri, 08 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Your Favorite Fry Is a Geometry Problem</title>
      <link>https://abakcus.com/tools/fry-universe</link>
      <guid isPermaLink="true">https://abakcus.com/tools/fry-universe</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/The%20Fry%20Universe.webp" alt="Your Favorite Fry Is a Geometry Problem" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/tools/fry-universe">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/The%20Fry%20Universe.webp" type="image/webp" length="0" />
      <pubDate>Thu, 07 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>The Testing Board Assumed They Cheated</title>
      <link>https://abakcus.com/videos/stand-and-deliver</link>
      <guid isPermaLink="true">https://abakcus.com/videos/stand-and-deliver</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Stand%20And%20Deliver.jpg" alt="The Testing Board Assumed They Cheated" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/videos/stand-and-deliver">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Stand%20And%20Deliver.jpg" type="image/webp" length="0" />
      <pubDate>Thu, 07 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Islamic Geometric Patterns</title>
      <link>https://abakcus.com/books/islamic-geometric-patterns-eric-broug</link>
      <guid isPermaLink="true">https://abakcus.com/books/islamic-geometric-patterns-eric-broug</guid>
      <description>A compass, a ruler, and 1,400 years of quiet geometry. 23 patterns from real buildings — from the Great Mosque of Córdoba to Samarkand.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/Islamic%20Geometric%20Patterns%20by%20Eric%20Broug.jpg" alt="Islamic Geometric Patterns" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>A compass, a ruler, and 1,400 years of quiet geometry. 23 patterns from real buildings — from the Great Mosque of Córdoba to Samarkand.</p><p><a href="https://abakcus.com/books/islamic-geometric-patterns-eric-broug">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/Islamic%20Geometric%20Patterns%20by%20Eric%20Broug.jpg" type="image/webp" length="0" />
      <pubDate>Thu, 07 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Written in Prison. In Print for a Century.</title>
      <link>https://abakcus.com/books/introduction-to-mathematical-philosophy</link>
      <guid isPermaLink="true">https://abakcus.com/books/introduction-to-mathematical-philosophy</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-20a4177bffe64c589df64f56f79e9127.r2.dev/Introduction%20to%20Mathematical%20Philosophy%20by%20Bertrand%20Russell.png" alt="Written in Prison. In Print for a Century." style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/books/introduction-to-mathematical-philosophy">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Wed, 06 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Your Name, Written by Earth</title>
      <link>https://abakcus.com/tools/your-name-in-landsat</link>
      <guid isPermaLink="true">https://abakcus.com/tools/your-name-in-landsat</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Your%20Name%20in%20Landsat.png" alt="Your Name, Written by Earth" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/tools/your-name-in-landsat">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Tue, 05 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>A Drawing That Erases Itself</title>
      <link>https://abakcus.com/videos/yuki-kawae</link>
      <guid isPermaLink="true">https://abakcus.com/videos/yuki-kawae</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-676f738e0a3948d19dc9defd954e36d5.r2.dev/Yuki%20Kawae%20zen%20garden.jpg" alt="A Drawing That Erases Itself" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/videos/yuki-kawae">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Tue, 05 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Statistics You Can Watch Think</title>
      <link>https://abakcus.com/tools/seeing-theory</link>
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      <description>A Brown University student made probability visible — and changed how a generation understands statistics.</description>
      <content:encoded><![CDATA[<img src="https://pub-3775c49696ac49478c024f66a3dbe50d.r2.dev/Seeing%20Theory.png" alt="Statistics You Can Watch Think" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>A Brown University student made probability visible — and changed how a generation understands statistics.</p><p><a href="https://abakcus.com/tools/seeing-theory">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Mon, 04 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>The Equations That Forgot They Were Equations</title>
      <link>https://abakcus.com/articles/alejandro-guijarro-momentum</link>
      <guid isPermaLink="true">https://abakcus.com/articles/alejandro-guijarro-momentum</guid>
      <description>Alejandro Guijarro spent three years photographing quantum mechanics blackboards at Cambridge, Stanford, CERN, and Oxford. No staging. Just the board.</description>
      <content:encoded><![CDATA[<img src="https://pub-98e13baa8ca84d53b2e3ee903a8fce62.r2.dev/Alejandro%20Guijarro%20Physics%20Blackboards%201.jpg" alt="The Equations That Forgot They Were Equations" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Alejandro Guijarro spent three years photographing quantum mechanics blackboards at Cambridge, Stanford, CERN, and Oxford. No staging. Just the board.</p><p><a href="https://abakcus.com/articles/alejandro-guijarro-momentum">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Mon, 04 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>How Magritte Broke Perception Without Breaking a Single Rule</title>
      <link>https://abakcus.com/articles/magritte-blank-signature</link>
      <guid isPermaLink="true">https://abakcus.com/articles/magritte-blank-signature</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Rene%20Magritte%E2%80%99s%20The%20Blank%20Signature.webp" alt="How Magritte Broke Perception Without Breaking a Single Rule" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/articles/magritte-blank-signature">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sun, 03 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Drawing a Chair 64 Times</title>
      <link>https://abakcus.com/articles/erich-dieckmann-metal-tube-chair</link>
      <guid isPermaLink="true">https://abakcus.com/articles/erich-dieckmann-metal-tube-chair</guid>
      <description>Erich Dieckmann&apos;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.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/Metal%20Tube%20Chair%20by%20Erich%20Dieckmann.png" alt="Drawing a Chair 64 Times" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Erich Dieckmann&apos;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.</p><p><a href="https://abakcus.com/articles/erich-dieckmann-metal-tube-chair">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sat, 02 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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    <item>
      <title>Feynman on How Math Should Be Taught to Children</title>
      <link>https://abakcus.com/articles/feynman-math-education</link>
      <guid isPermaLink="true">https://abakcus.com/articles/feynman-math-education</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/How%20Should%20Math%20Be%20Taught%20to%20Children%3F.webp" alt="Feynman on How Math Should Be Taught to Children" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/articles/feynman-math-education">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Fri, 01 May 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>The Astronomy Textbook That Outlived an Empire</title>
      <link>https://abakcus.com/articles/al-jaghmini-astronomy-manuscript</link>
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      <description>Written one year before its author died in the Mongol conquest of Khwarazm, al-Jaghmini&apos;s Mulakhkhas became the most widely copied Arabic astronomy textbook ever made.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/An%20Illustrated%20Astronomical%20Treatise%20by%20Mahmud%20ibn%20Muhammad%20al-Jaghmini.webp" alt="The Astronomy Textbook That Outlived an Empire" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Written one year before its author died in the Mongol conquest of Khwarazm, al-Jaghmini&apos;s Mulakhkhas became the most widely copied Arabic astronomy textbook ever made.</p><p><a href="https://abakcus.com/articles/al-jaghmini-astronomy-manuscript">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Thu, 30 Apr 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>Rafael Araujo&apos;s 20+ Mesmerizing Geometrical Masterpieces</title>
      <link>https://abakcus.com/rafael-araujo-geometrical-masterpieces</link>
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      <description>Rafael Araujo spends 100 hours on a single drawing — no software, no undo. A selection of his most stunning hand-drawn golden ratio illustrations.</description>
      <content:encoded><![CDATA[<img src="https://pub-57855d8f88704d1cafba485f1b715e8d.r2.dev/Rafael%20Araujo%20Geometrical%20Drawings%2016.jpeg" alt="Rafael Araujo&apos;s 20+ Mesmerizing Geometrical Masterpieces" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>Rafael Araujo spends 100 hours on a single drawing — no software, no undo. A selection of his most stunning hand-drawn golden ratio illustrations.</p><p><a href="https://abakcus.com/rafael-araujo-geometrical-masterpieces">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="https://pub-57855d8f88704d1cafba485f1b715e8d.r2.dev/Rafael%20Araujo%20Geometrical%20Drawings%2016.jpeg" type="image/webp" length="0" />
      <pubDate>Wed, 29 Apr 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>The Proof That 0.999… Is Exactly Equal to 1</title>
      <link>https://abakcus.com/articles/0999-equals-1</link>
      <guid isPermaLink="true">https://abakcus.com/articles/0999-equals-1</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="/images/0999-equals-1-card.svg" alt="The Proof That 0.999… Is Exactly Equal to 1" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/articles/0999-equals-1">Read on Abakcus →</a></p>]]></content:encoded>
      <enclosure url="/images/0999-equals-1-card.svg" type="image/webp" length="0" />
      <pubDate>Mon, 27 Apr 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>24 Beautiful Physics Poster Designs That Inspire You</title>
      <link>https://abakcus.com/24-beautiful-physics-poster-designs-that-inspire-you</link>
      <guid isPermaLink="true">https://abakcus.com/24-beautiful-physics-poster-designs-that-inspire-you</guid>
      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/24%20Beautiful%20Physics%20Poster%20Designs%20That%20Inspire%20You.webp" alt="24 Beautiful Physics Poster Designs That Inspire You" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/24-beautiful-physics-poster-designs-that-inspire-you">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sun, 26 Apr 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
    </item>
    <item>
      <title>25 Beautiful Math Documentaries to Make Students Love Mathematics</title>
      <link>https://abakcus.com/25-beautiful-math-documentaries-to-love-math</link>
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      <description>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.</description>
      <content:encoded><![CDATA[<img src="https://pub-df7a29ac929f4b26b7322c861440d59d.r2.dev/25%20Beautiful%20Math%20Documentaries%20to%20Make%20Students%20Love%20Mathematics.webp" alt="25 Beautiful Math Documentaries to Make Students Love Mathematics" style="max-width:100%;height:auto;display:block;margin-bottom:1em;" /><p>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.</p><p><a href="https://abakcus.com/25-beautiful-math-documentaries-to-love-math">Read on Abakcus →</a></p>]]></content:encoded>
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      <pubDate>Sat, 25 Apr 2026 00:00:00 GMT</pubDate>
      <author>ali@abakcus.com (Ali Kaya)</author>
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