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    Robert Lang

    langorigami.com · Personal blog · on HN since 2008

    Robert Lang, a physicist turned origami artist, shares his folding designs, TreeMaker software and writing on the math and science of origami.

    Visit blogRSSHN submissions
    MathScienceDesign & UX
    What HN says

    Commenters call him a leading figure in origami math, recommend his book Origami Design Secrets, and point to his site for art and science.

    Stats for nerds
    26HN people shared it
    6linked in comments
    213story points
    Feb 2026last shared
    2009people per year2026

    Top posts on HN

    1. 1
      TreeMaker: Origami Design Software
      8 people · 204 points · first shared 2017 · 12 comments on HN
    2. 2
      Computational Origami
      2 people · 4 points · first shared 2019 · Discussion on HN
    3. 3
      Beautiful origami from a leading theorist of origami math.
      1 person · 3 points · first shared 2008 · Discussion on HN
    4. 4
      Mathematical and scientific origami
      1 person · 2 points · first shared 2016 · Discussion on HN
    5. 5
      Homepage
      3 people · first shared 2015
    6. 6
      Eyeglass telescope
      2 people · first shared 2023
    7. 7
      Origami conferences
      1 person · first shared 2020
    8. 8
      Optigami
      1 person · first shared 2026
    9. 9
      About robert j lang
      1 person · first shared 2019
    10. 10
      Origami design secrets 2nd edition
      1 person · first shared 2021

    What HN people wrote when they linked it

    • layoutIfNeededApr 2019

      The article talks about Robert J. Lang (https://langorigami.com), but he deserves more than a passing mention if we're talking about origami. He's a physicist/mathematician at NASA, an AMS Fellow, and also one of the top origamists in the world.

      Here's a video showing his extraordinary origami insects: https://www.youtube.com/watch?v=CYoTCssVyJU

      He wrote dozens of papers about the mathematics of origami over the years, and last year he came out with a gorgeous book on the subject: Twists, Tilings, and Tessellations: Mathematical Methods for Geometric Origami (https://www.amazon.com/Twists-Tilings-Tessellations-Mathematical-Geometric/dp/1138563064)

      He also has a bunch of origami books with "regular" animal models, but they tend to be on the complex end of the spectrum, so they're not for beginner origamists.

      He also developed TreeMaker, which is a software tool for systematically designing folding patterns from a model specification: https://langorigami.com/article/treemaker/ (some of his complex insect models are based on TreeMaker folding patterns)

    • CrazyStatFeb 2026

      Is there? I followed the link[1] to the original author of the desktop software this web app is derived from, and he says:

      > To make a long story short, by the third generation of ReferenceFinder (written in 2003), I had incorporated all 7 of the Huzita-Justin Axioms of folding into the program, allowing it to potentially explore all possible folding sequences consisting of sequential alignments that each form a single crease in a square of paper. Of course, the family tree of such sequences grows explosively (or to be precise, exponentially); but the concomitant growth in the availability of computing horsepower has made it possible to explore a reasonable subset of that exponential family tree, and in effect, by pure brute force, find a close approximation to any arbitrary point or line within a unit square using a very small number of folds.

      (emphasis added)

      [1] https://langorigami.com/article/referencefinder/

    • Red_TarsiusMay 2015

      I'm an aspiring inventor of board games, so that takes all my free time. In the past, I used to practice technical origami: The ancient art of paper folding meets mathematics. It's the best of both worlds: a very practical, yet mind-bending activity.

      If you're interested, start by reading Robert J. Lang http://www.langorigami.com/ and Erik Demaine http://erikdemaine.org/.

      Origami Design Secret is the best introduction on modern techniques: http://www.amazon.com/Origami-Design-Secrets-Mathematical-Methods/dp/1568814364/ref=cm_cr_pr_product_top?ie=UTF8

      I also read a lot. It's not cool yet, but it will be if I get to read 100+ non-fiction books in one year. That's my goal for 2015.

    • OldGuyInTheClubJul 2023

      There's much more to a telescope than the primary mirror which the author conveniently neglects. As others point out below, making an IR observatory (JWST) requires keeping everything around the mirror cold so that the mirrors and instruments (not trivial, either) have a hope in heck of working.

      Livermore tested a multi-meter thin Fresnel optic back in 2002. They also worked with Robert Lang, physicist and origamist, to figure out how to pack the thing effectively.

      https://digital.library.unt.edu/ark:/67531/metadc1412512/m2/1/high_res_d/15005362.pdf

      https://langorigami.com/article/eyeglass-telescope/

    • aa-jvJan 2023

      Origami is one of those subjects that hits the aesthetic button as well as the technical button .. it forms the roots of a means of manifesting "programmable matter" which is long overdue for a bit of crazy technological innovation.

      Every now and then I go through a phase of "catching up with the state of the origami art" and it is always rewarding to see the progress made by academics and scientists alike .. I find Computational Origami utterly fascinating, personally:

      https://langorigami.com/article/computational-origami/

    • b215826Nov 2019

      I would suggest origami. Origami is probably the art form that's been studied by mathematicians and computer scientists more than any others, e.g., flat-foldable origami crease patterns obey some simple mathematical theorems [1]. There has also been considerable research into finding an origami crease pattern for a particular target shape, and software such as TreeMaker helps one do that [2].

      [1]: https://en.wikipedia.org/wiki/Mathematics_of_paper_folding#Flat_folding

      [2]: https://langorigami.com/article/treemaker/

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