Top all-time · #1617
George W. Hart
Personal blog · georgehart.commathdesignhardware
George W. Hart's personal blog at georgehart.com covers math, design and hardware. Since 2009, 47 different Hacker News readers have linked it 56 times, most often “How to Slice a Bagel into Two Linked Halves (2009)”. No feed was found, so read it on the site itself.
Most-linked posts?
- How to Slice a Bagel into Two Linked Halves (2009)10 people · 12 mentions · first linked 2009-12-07
- Geometric Sculptures3 people · 3 mentions · first linked 2010-05-29
- The Incompatible Food Triad2 people · 3 mentions · first linked 2012-06-06
- Multidimensional Analysis: Algebras and Systems for Science and Engineering2 people · 3 mentions · first linked 2024-08-27
- The Incompatible Food Triad2 people · 3 mentions · first linked 2019-12-20
- Mathematically Correct Breakfast, Knotted Bagel2 people · 2 mentions · first linked 2010-04-01
- How to Slice a Bagel into Two Linked Halves2 people · 2 mentions · first linked 2010-12-04
- The Encyclopedia of Polyhedra2 people · 2 mentions · first linked 2024-06-11
- Mathematically Correct Breakfast2 people · 2 mentions · first linked 2022-03-25
What Hacker News says?
I highly recommend taking a look at George Hart's work on linear algebra: http://georgehart.com/research/multanal.html , although I do think he misses the point (or at least insufficiently emphasizes) that you almost never want to work with linear maps that cannot be described by a set of units on each axis that are multiplied together to get the entries.
Comment linking /research/multanal.html
on “Correctness and composability bugs in the Julia ecosystem”Submitted How to Slice a Bagel into Two Linked Halves (2009) as a story · 415 points
HN discussionWhen I saw the name Vi Hart , the author of the video, it sounded quite familiar. It turned out that She is the daughter of George W Hart , a mathematician and polyhedron man. I'm a big fan of work zome geometry and amazing polyhedron. If you are interested in recreational mathematics, don't miss to checkout https://georgehart.com/ .
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on “Hexaflexagons [video] (2012)”Submitted Mathematically correct breakfast: How to slice a bagel into two linked halves (2009) as a story · 394 points
HN discussionGeorge Hart made STL files for 3d projections of a number of 4d objects[0]. Some 3d printers include them as example prints One place I know even used Hart's 3d projection of 120 cell as a standard test print. It has a bunch of thin complicated features that machines have trouble with. One could tell immediately if something was wrong with the machine if the thin pieces were deformed or came out too brittle that nor…
Comment linking /rp/120-cell-george-hart.stl
on “4D Toys: a box of four-dimensional toys”Submitted How to Slice a Bagel into Two Linked Halves as a story · 350 points
HN discussionIt turns out there's a sequel! http://www.georgehart.com/bagel/knot.html
Comment linking /bagel/knot.html
on “How to Slice a Bagel into Two Linked Halves (2009)”Submitted How to Slice a Bagel into Two Linked Halves as a story · 198 points
HN discussionSee also: https://www.georgehart.com/bagel/bagel.html
Comment linking /bagel/bagel.html
on “The Cube Rule (2017)”Submitted How to Slice a Bagel into Two Linked Halves as a story · 124 points
HN discussionI met George in March 2008 - fascinating man - and I have his screw-together cube puzzle: http://www.georgehart.com/puzzles/cube-puzzle.html I wish I had more money so I could buy more of his stuff - it's utterly intriguing.
Comment linking /puzzles/cube-puzzle.html
on “How to Slice a Bagel into Two Linked Halves”Submitted The Incompatible Food Triad as a story · 16 points
HN discussionHe is especially known for workshops he has led around the world constructing very large models of four-dimensional polytopes (e.g., 1, 2, 3, 4, 5), These extraordinary activities expose participants to important conceptual ideas they might never experience otherwise... his alternative introductions to mathematical topics are often effective for engaging students who are not attracted to traditional mathematics teac…
Comment linking /research/hartbiog.html
on “How to Slice a Bagel into Two Linked Halves”Submitted A Scott Kim Ambigram for George Hart as a story · 14 points
HN discussionHappy to have agreement that this goes beyond "traditional linear algebra". But, pedagogical treatment is a separate question from what is linear algebra. Should these all be the same wikipedia page? - https://en.wikipedia.org/wiki/Exterior_algebra - https://en.wikipedia.org/wiki/Multilinear_algebra - https://www.georgehart.com/research/multanal.html (okay, not mainstream enough to have a relevant page, but it is ex…
Comment linking /research/multanal.html
on “Poor Foundations in Geometric Algebra”Submitted How to Slice a Bagel into Two Linked Halves as a story · 8 points
HN discussionHere are the links without going through Google's URL shortener: http://www.georgehart.com/sculpture/sculpture.html http://bibliodyssey.blogspot.com/2009/08/jamnitzer-perspecti...
Comment linking /sculpture/sculpture.html
on “Escher Sketch”Submitted Mathematically Correct Breakfast as a story · 5 points
HN discussionThe rest of George Hart's site is interesting as well, especially his encyclopedia of virtual polyhedra [1]. There is also a part 2 of "Mathematically Correct Breakfast" (this time a trefoil knot) [2], and his sculptures are worth looking at as well [3]. [1] http://www.georgehart.com/virtual-polyhedra/vp.html [2] http://www.georgehart.com/bagel/knot.html [3] http://www.georgehart.com/sculpture/sculpture.html
Comment linking /sculpture/sculpture.html
on “How to Slice a Bagel into Two Linked Halves”Submitted Mathematically Correct Breakfast, Knotted Bagel as a story · 5 points
HN discussionMaybe HN could apply itself to finding solutions to George Hart's Incompatible Food Triad . (George is father to maths/art youtube superstar Vi Hart and himself an amazing maths/artist.) After twenty-five years of thinking about this problem I decided to write a web page about it. Here is the problem: Can you find three foods such that all three do not go together (by any reasonable definition of foods "going togeth…
Comment linking /triad.html
on “Food Grammar: Unspoken rules of cuisine”Submitted Slide-Together Geometric Constructions (2004) as a story · 5 points
HN discussion1. The source code is here: https://github.com/tesseralis/polyhedra-viewer , under the MIT license. 2. Both! I do have a catalog of the polyhedra (adapted from http://www.georgehart.com/virtual-polyhedra/vp.html ). Some of the operations, like truncation, are done parametrically, but others, like expansion, I "cheated" and relied on knowing what the result is b/c I was just too lazy to figure out the math. 3. I don'…
Comment linking /virtual-polyhedra/vp.html
on “Show HN: Polyhedra Viewer”Submitted Johnson Polyhedra as a story · 3 points
HN discussionPolyhedra Viewer: app to explore the relationships and transformations between various convex polyhedra. This has been a passion project of mine for the last six months (with different versions going back further!) It's partially inspired by George W Hart's virtual polyhedra ( http://www.georgehart.com/virtual-polyhedra/vp.html ) I wanted to make something accessible and beautiful, since a lot of the resources that…
Comment linking /virtual-polyhedra/vp.html
on “Show HN: Polyhedra Viewer”Submitted The Incompatible Food Triad as a story · 3 points
HN discussionHappens to the best of us: http://www.georgehart.com/virtual-polyhedra/kepler.html
Comment linking /virtual-polyhedra/kepler.html
on “How the belief in beauty has triggered a crisis in physics”Submitted Multidimensional Analysis: Algebras and Systems for Science and Engineering as a story · 2 points
HN discussionRock-paper-scissors also gives rise to scenes that are bad for naive sorting (for graphics or CAD), where you have three objects such that any two can be sorted in occlusion order, but not all three. Can we triage our ikigai such that I (sympathising with my machinery) take all your overly-associative structures and you (communing with the universe?) take all my insufficiently-associative structures? (there are many…
Comment linking /triad.html
on “Huawei developing SSD-tape hybrid amid US tech restrictions”Submitted The Encyclopedia of Polyhedra as a story · 2 points
HN discussion
