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- Test your intuition 24: Which of the following three groups is trivial
- Believing that the Earth is Round When it Matters
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- Happy Birthday Ron Aharoni!
- A lecture by Noga
- יופיה של המתמטיקה
- When It Rains It Pours
- In how many ways you can chose a committee of three students from a class of ten students?
- Gödel, Hilbert and Brouwer

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# Category Archives: Uncategorized

## A Proposal Regarding Gilad Shalit

Since an agreement for the release of Gilad Shalit in exchange for the release of Hamas prisoners could not be reached, I propose to initiate negotiations (perhaps with Egyptian help) on the improvement of Gilad Shalit’s captivity conditions. In return … Continue reading

## Colloquium at Berlin

I arrived to Berlin for a short visit to give a colloquium talk at the new BMS on Helly-type theorems, and to participate in the Ph. D. committee of Ronald Wotzlaw. (Update: Dr. Ronald Wotzlaw.) Here is an abstract for the … Continue reading

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## Bad Advice; An Answer to an Old Trivia Question

A transparency and a lecture using transparencies. (No relation to the advice.) Our bad, worse and worst advice corner Bad - When you give a talk with transparencies or computer presentations, don’t go over the content of the transparencies but rather assume … Continue reading

## Stand Clear of The Closing Doors, Please

Do you miss New York City? Here is something to remind you click here click also here (video) One more time? Click here. London lovers, however, say that this is nothing compared to

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Tagged Mind the gap, Missing NYC, New York City, Stay clear of the closing doors
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## New Haven (mainly pictures)

] Yale, New Haven I am back in New Haven which have become my home away from home in the last five years. Cappuccino’S and more – Cedar cross Congress, New Haven. Not only that this name is similar … Continue reading

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Tagged New Haven, Three dimensional electron microscopy, Yale, Yoel Shkolinsky
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## Surprising Math

1. A pleasant surprise When I worked on the diameter problem for d-polytopes with n facets. I was aiming to prove an upper bound of the form but my proof only gave It was a pleasant surprise to note that . 2. … Continue reading

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