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 Mathematical Gymnastics
 Media Item from “Haaretz” Today: “For the first time ever…”
 Jim Geelen, Bert Gerards, and Geoﬀ Whittle Solved Rota’s Conjecture on Matroids
 Media items on David, Amnon, and Nathan
 Next Week in Jerusalem: Special Day on Quantum PCP, Quantum Codes, Simplicial Complexes and Locally Testable Codes
 Happy Birthday Ervin, János, Péter, and Zoli!
 My Mathematical Dialogue with Jürgen Eckhoff
 Test Your Intuition (23): How Many Women?
 Happy Birthday Richard Stanley!
Top Posts & Pages
 Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
 The KadisonSinger Conjecture has beed Proved by Adam Marcus, Dan Spielman, and Nikhil Srivastava
 Two Math Riddles
 Believing that the Earth is Round When it Matters
 When It Rains It Pours
 Polymath 8  a Success!
 Why Quantum Computers Cannot Work: The Movie!
 The Polynomial Hirsch Conjecture: Discussion Thread
 Amazing: Peter Keevash Constructed General Steiner Systems and Designs
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Media items on David, Amnon, and Nathan
David Kazhdan, a very famous mathematician from my department with a superhuman understanding of mathematics (and more) is recovering from a terrible bike accident. Here is an article about him from “Maariv.” (In Hebrew) Amnon Shashua, a computer science … Continue reading
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Dorit Aharonov’s on TEDx: A Feldenkrais lesson for the beginner scientist
Here is a lovely lecture starting with quantum computers, going through the Feldenkrais method, and ending with a mathematical puzzle. Click on the picture for the video of the talk. Here are Dorit’s four bodymind principles for learning: 1. Start … Continue reading
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Alexander Chervov MO’s Question: NoteworthyAchievementsInAndAround2010
Alexander Chervov asked over Mathoverflow about Noteworthy results in and around 2010 and some interesting results were offered in the answers. If you would like to mention additional results you can comment on them here. The only requirement is to … Continue reading
Course Announcement: High Dimensional Expanders
Alex Lubotzky and I are running together a year long course at HU on High Dimensional Expanders. High dimensional expanders are simplical (and more general) cell complexes which generalize expander graphs. The course will take place in Room 110 of the mathematics building … Continue reading
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Baggage Claim or Baggage Reclaim
Visiting London, Cambridge and the very interesting 2010 British Colloquium in Theoretical Computer Science at Edinburgh was splendid! More later. But a poll is called for. How to call the area to collect your baggage: “Baggage reclaim” or “Baggage claim”? … Continue reading
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A Little Story Regarding Borsuk’s Conjecture
Jeff Kahn Jeff and I worked on the problem for several years. Once he visited me with his family for two weeks. Before the visit I emailed him and asked: What should we work on in your visit? Jeff asnwered: … Continue reading
Banknotes with Pictures of Mathematicians
Are you aware of any? (current ones? old ones?)
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A Workshop for Advanced Undergraduate Students, Sept 617 2009
סדנא לתלמידי בוגר מצטיינים במתמטיקה מכון איינשטיין למתמטיקה, האוניברסיטה העברית בירושלים יום א’ י”ז אלול – יום ה’ כ”ח אלול תשס”ט 617/9/09 המכון למתמטיקה של האוניברסיטה העברית מזמין תלמידי מתמטיקה מצטיינים המסיימים שנה ב’ או ג’ של … Continue reading
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The Generation Gap
Which is larger, the generation gap between you and your perents or the generation gap between you and your children?