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Three-Cornered Things | Zachary Abel's Math BlogZachary Abel's Math Blog
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Zachary Abel's Math Blog
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Three-Cornered Things | Zachary Abel's Math Blog | blog.zacharyabel.com Reviews
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Zachary Abel's Math Blog
blog.zacharyabel.com
ellipses | Three-Cornered Things
http://blog.zacharyabel.com/tag/ellipses
Zachary Abel's Math Blog. January 2, 2013. This is the 4th and last installment in the current series on mini-golf and ellipse geometry. See the previous ones here: #1. We must settle one more question to round out our elliptical arc: Why does light, when shot from one focus of an ellipse-shaped mirrored room, reflect back to the other focus? To answer this question, we’ll need a Fact, a Formalism, and a Fairy Tale. Recall that, in the previous post. So that the total length of broken path F. Which is de...
How Unilluminating! | Three-Cornered Things
http://blog.zacharyabel.com/2012/09/how-unilluminating
Zachary Abel's Math Blog. September 2, 2012. Said differently, consider the room as a large hole of mathematical mini-golf, where the locations of the ball (just one point) and cup (also just a point) are predetermined. Your goal is to pick a direction to hit the ball, hoping that it will reflect off the walls and eventually find its way to the cup. Is a hole-in-one always possible? With these rules in place, it turns out that it. Possible to be left in the dark, or to make a hole-in-one impossible!
fairy tales | Three-Cornered Things
http://blog.zacharyabel.com/tag/fairy-tales
Zachary Abel's Math Blog. Tag Archives: fairy tales. January 2, 2013. This is the 4th and last installment in the current series on mini-golf and ellipse geometry. See the previous ones here: #1. We must settle one more question to round out our elliptical arc: Why does light, when shot from one focus of an ellipse-shaped mirrored room, reflect back to the other focus? To answer this question, we’ll need a Fact, a Formalism, and a Fairy Tale. Recall that, in the previous post. On the ellipse; let d.
Dandelin spheres | Three-Cornered Things
http://blog.zacharyabel.com/tag/dandelin-spheres
Zachary Abel's Math Blog. Tag Archives: Dandelin spheres. What Makes Ellipses… Ellipses? October 1, 2012. Last time we used wild properties of ellipses to build some really easy—and some really devilish—golf courses. Specifically, I claimed that every ellipse has two magical points F. Such that a ray from F. Always bounces off the ellipse and lands precisely at F. And furthermore, this path always has the same length. Why does this happen? And how do we find these foci? Is always the same! So the sum XF.
Little Red’s Geometry Problem | Three-Cornered Things
http://blog.zacharyabel.com/2012/12/straight-line-riding-hood/reflect-little-red
Zachary Abel's Math Blog. Little Red’s Geometry Problem. January 2, 2013. In Red, Alert. Full resolution (600 × 230). Left: Paths from M to S to G transform into paths from M’ to G, the shortest of which is straight. Right: This straight path behaves like a mirror. Leave a Reply Cancel reply. Your email address will not be published. Required fields are marked *. Notify me of follow-up comments by email. Notify me of new posts by email. New Sculpture Writeup: Penny Pincher. MIT MoSAIC This Weekend.
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Matemáticas - Altas Capacidades Recursos
https://sites.google.com/a/educacion.navarra.es/banco-de-recursos/home/enriquecimiento-curricular/actividades-con-ordenador/matematicas
Buscar en este sitio. Recursos para el aula. Desarrollo personal y social. Inteligencia emocional. Libros y juegos para el aula. Material para el Profesorado. Actividades para el aula. Blog de Amadeo Artacho con gran cantidad de recursos y posibilidades para trabajar las mateméticas en todos los niveles educativos. 1 feb 2016 3:17. Creena - Altas capacidades CREENA. 14 oct. 2015 3:32. Creena - Altas capacidades CREENA. 13 oct. 2015 5:29. Creena - Altas capacidades CREENA. Blog Juegos y matemáticas. 15 se...
Zachary Abel's Homepage
http://zacharyabel.com/index.html
I am a recently minted Ph.D. from the MIT Mathematics Department, and my Research. Focuses on the interactions between geometry and theoretical computer science. I also design and build Mathematical Sculptures. Attempting to reveal hidden geometric beauty in office supplies and other modest materials. See these sculpture pages for pictures and mathematical descriptions of these works.
Writings by Zachary Abel
http://www.zacharyabel.com/writings.html
Endpaper: Math has this funny property. Zachary Abel and Scott D. Kominers. The Harvard College Mathematics Review. Mathematical minutiae: (i ) has this funny property. Zachary Abel and Scott D. Kominers. The Harvard College Mathematics Review. 2(1):75–77, 2008. The Harvard College Mathematics Review. Scott Kominers, Menyoung Lee, and Zachary Abel. Combinatorial properties of the Higman-Sims graph. Math 155: Designs and Groups. Tangles for knots and links. By Aldo Andreotti and Theodore Frankel. Spring 2...
Talks by Zachary Abel
http://www.zacharyabel.com/talks.html
Hardness of Plane Graph Rigidity. The 32nd International Symposium on Computational Geometry. Conference presentation of this paper. The 19th Annual Bridges Conference. Jyväskylä, Finland, pages 359–362, August 2016. Conference presentation of this paper. The Tenth Gathering for Gardner. Folding equilateral plane graphs. The 22nd International Symposium on Algorithms and Computation. Yokohama, Japan, December 2011. Conference presentation of this paper. Conference presentation of this paper. MIT, May 2013.
Sculpture by Zachary Abel
http://zacharyabel.com/sculpture
Click the images below for larger pictures and mathematical descriptions of these works. Please contact me. If you have any comments or questions. Also, if you construct one of these designs or a modification thereof, I would love to see pictures and/or hear your thoughts! New sculptures are announced on my blog. Binder Clip Snub Dodecahedron). Paperclip Snub Truncated Icosahedron).
About me and this blog - on graphs
http://ongraphs.de/blog/about
About me and this blog. A blog on geometric graphs and other things. About me and this blog. About me and this blog. Hi, my name is André. I am a scientist interested in Theory of Computer Science and Discrete Math. My main interest are geometric graphs. I study problems such as how to embed graphs, or how many crossing-free graphs exist. So why a blog? Hmm, basically I would like to find out what I have to say and if there are people interested in it. Leave a Reply Cancel reply.
Report from GD2016 - on graphs
http://ongraphs.de/blog/2016/09/report-from-gd2016
About me and this blog. A blog on geometric graphs and other things. About me and this blog. September 28, 2016. Last week I was in Athens attending the 24th Symposium on Graph Drawing and Network Visualization. I will give a short report on what happened in Greece. As usual there were about 40 talks (2 of them were invited talks), a poster session and an onsite contest. Let me start with the talks. The program can be accessed here. St-order we can use this to compute an upward planar drawing on a grid&#...
Dynamic Citation Graph - on graphs
http://ongraphs.de/blog/2015/01/dynamic-citation-graph
About me and this blog. A blog on geometric graphs and other things. About me and this blog. January 27, 2015. Almost a year ago I had a post about citation networks of interconnected communities. There are many tools for preparing an interactive visualization on a webpage. I wanted to make it in javascript – but still – which weapon should I choose: d3.js. Sigmajs and cytoscape.js are targeted for displaying graphs. However what I saw from the examples I liked d3.js most (I also prefer vecto...Package&#...
Brent | The Math Less Traveled
https://mathlesstraveled.com/author/byorgey
The Math Less Traveled. Explorations in mathematical beauty. About this blog (FAQ). Assistant Professor of Computer Science at Hendrix College. Functional programmer, mathematician, teacher, pianist, follower of Jesus. Post without words #10. August 26, 2016. August 26, 2016. Factorization diagram card redesign: feedback welcome! August 24, 2016. Post without words #9. August 14, 2016. August 14, 2016. Post without words #8. August 12, 2016. Post without words #7. July 18, 2016. July 18, 2016. What'...
Appendices | The Math Less Traveled
https://mathlesstraveled.com/appendices
The Math Less Traveled. Explorations in mathematical beauty. About this blog (FAQ). Here be the Appendices, repositories of general mathematical information and exposition that didn’t fit in one of my posts for one reason or another. I expect that in time there will come to be quite a bit of information contained here, of a more general nature than my freewheeling blog posts. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). Follow Blog via Email.
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blog.zachandkristaphotography.com
photo journal
A collection of times had and photos taken. The joy of being a photographer is seeing the love in their eyes…. A Trip Through Time. The Cressman Family…. At Elk Island View – View on Path. We are Fragile…. As our family grows, I have to keep myself remembering these short moments I have with them while they are young… I love my two little girls so very much…. 8203;credit to Lauren Mann and the Fairly Odd Folk for “Fragile” off of their album Over Land and Sea. 1 ⁄ 9. Powered by Tumblr -.
Zach Archer Blog | Friend to analog and digital alike
Friend to analog and digital alike. Skip to primary content. Skip to secondary content. LED Installation: The Door Wall. June 4, 2016. Here’s a quick wrap-up post for The Door Wall project, which Jared Boone. And I developed in 2013. It’s a permanent installation of 3,810 RGB LEDs:. We learned about this project through Michael Ossman. Who saw the HypnoLamp. And introduced us to Danielle. The owners and operators of Ada’s Technical Books. Continue reading →. The Northwest Animation Festival. June 21, 2013.
Default Parallels Plesk Panel Page
Web Server's Default Page. This page is generated by Parallels Plesk Panel. The leading hosting automation software. You see this page because there is no Web site at this address. You can do the following:. Parallels is a worldwide leader in virtualization and automation software that optimizes computing for consumers, businesses, and Cloud services providers across all major hardware, operating systems, and virtualization platforms. To find out more information. Hypervisor Virtualization technology for.
Zacharias Pieri
Nigeria and Boko Haram Tracker; Issue 3. For the past month or so, I have been working hard along with colleagues from the Global Initiative at the University of South Florida (USF) to produce our latest analyses on conflict and security, governance and civil society in Northern Nigeria. Http:/ www.usfglobalinitiative.org/newsletter/. Three Key Trends on Boko Haram. 1 The resurgence of Boko Haram. 2 The regionalization of Boko Haram. 3 Greater alignment with Islamic State. Before setting fire to homes.
Mikołaj Zacharow - Fotograf | Web Design | Specjalista IT
Fotograf Web Design Specjalista IT. Aparat fotograficzny jest nie tylko przedłużeniem oka, ale również umysłu. Może widzieć ostrzej, dalej, bliżej, wolniej i szybciej niż oko. Może ujrzeć niewidzialne światło. Dzięki niemu możemy zobaczyć przeszłość, teraźniejszość i przyszłość. Zamiast używać aparatu tylko do odtwarzania obrazów chciałbym stosować go tak, by to, co niewidzialne dla oczu, stało się widzialne. Księdza bp W. Tymienieckiego 3. 90-365 Łódź, Polska. 48 799 96 02 77.
Three-Cornered Things | Zachary Abel's Math Blog
Zachary Abel's Math Blog. New Sculpture Writeup: Penny Pincher. January 25, 2016. Check out the latest addition to my sculpture page: Penny Pincher. Made with more than four thousand binder clips and two thousand pennies, this monstrosity stands at 35 pounds and just under 2.5 feet, but it is perfectly content standing on three flimsy-looking legs. The flat image above doesn’t do justice to the three-dee-ness of the sculpture, so here’s a way around(hah! Head over to the full writeup. December 11, 2015.
Zachary Armstrong's Blog
Neverwinter Nights 2 UI Mods. Issues launching Borderlands 2 — .net 4.0 gets in a loop. When you try to run Borderlands 2, it gets into a loop where it asks you to reboot after it reinstalls .net 4.0. Fortunately, this problem is easily resolved! First, do a complete install of Borderlands 2. The first time it asks you to reboot, do so. Put it in that folder and launch! September 18, 2012, at 5:58 pm Tags: borderlands2. 29 views Leave a comment. I was getting the lovely error:. Around line #34, it reads.
McIntosh MC30 Rebuild and Restoration
McIntosh MC30 Rebuild and Restoration. I will be documenting the rebuild and complete restoration of a McIntosh MC30 mono amplifier. Latest posts are displayed first. If you're new to the blog, go to my first post, click on Jan 25 below. Sunday, March 23, 2014. Burn in period complete. This is just a quick update to let you know that after a few weeks of intense testing I am quite satisfied with the newly rebuilt amp. Anyhow, please look up the new group I just created on Facebook. Tuesday, March 4, 2014.
Open Bracket
Monday, December 1, 2014. Reflections on USV vs. a16z. Decided to share these thoughts from March 2014:[1]. I was reflecting on Fred Wilson’s comment. Where he analogized Union Square Ventures. USV) to a boutique clothing store and Andreessen Horowitz. A16z) to Walmart. That suggestion sets up a jarring contrast but I believe it’s deceptive. Discussion about the case on a16z. Brought out some of the reason why the analogy is imperfect, but we never really covered why. A16z is a bit of a strange animal.
Broken Groundglass
New website updates - www.zacharysallen.com/. March 26th, 2013. January 16th, 2012. In the Field at ACRE Exhibitions in Chicago. I am having a show of new work at ACRE Exhibitions. In Chicago starting with the opening reception on Sunday the 10th from 4-8pm. More info on the show can be found at http:/ www.facebook.com/event.php? If you or anyone you know will be around CHI have them stop by the show. Hope to see you there. April 6th, 2011. February 16th, 2011. January 27th, 2011. Discuss on our WP Forum.
My Life, My Interests | Live, Love & Learn
Live, Love and Learn. My Life, My Interests. Welcome to my blog! Comments Off on Welcome. Mathilde Mouse and The Story of Silent Night. This is a very cool Christmas story about a mouse that influenced the creation of one of the greatest Christmas carols ever. Comments Off on Mathilde Mouse and The Story of Silent Night. Posted in Children's Stories. Here are a few handheld shots of fireworks from the 4th of July that I shot. Comments Off on Fireworks. Theme by Michael Tyson.
