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 Friendship and Sesame, Maryam and Marina, Israel and Iran
 Elchanan Mossel’s Amazing Dice Paradox (your answers to TYI 30)
 TYI 30: Expected number of Dice throws
 Test your intuition 29: Diameter of various random trees
 Micha Perles’ Geometric Proof of the ErdosSos Conjecture for Caterpillars
 Touching Simplices and Polytopes: Perles’ argument
 Where were we?
 Call for nominations for the Ostrowski Prize 2017
 Problems for Imre Bárány’s Birthday!
Top Posts & Pages
 Friendship and Sesame, Maryam and Marina, Israel and Iran
 Elchanan Mossel's Amazing Dice Paradox (your answers to TYI 30)
 TYI 30: Expected number of Dice throws
 Test your intuition 29: Diameter of various random trees
 Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
 Polymath 10 Emergency Post 5: The ErdosSzemeredi Sunflower Conjecture is Now Proven.
 Test your intuition 28: What is the most striking common feature to all these remarkable individuals
 A Breakthrough by Maryna Viazovska Leading to the Long Awaited Solutions for the Densest Packing Problem in Dimensions 8 and 24
 Stefan Steinerberger: The Ulam Sequence
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Category Archives: Mathematics to the rescue
Angry Birds Update
Angry birds peace treaty by Eretz Nehederet Arqade A few years ago I became interested in the question of whather new versions of the computer game “Angry Birds” gradually makes it easier to get high scores. Devoted to the idea of … Continue reading
In how many ways you can chose a committee of three students from a class of ten students?
The renewed interest in this old post, reminded me of a more recent event: Question: In how many ways you can chose a committee of three students from a class of ten students? My expected answer: which is 120. Alternative … Continue reading
Posted in Mathematics to the rescue, Riddles, Teaching
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Another way to Revolutionize Football
The angle of Victoria Beckham’s hat (here in a picture from a recent wedding) is closely related to our previous post on football One of the highlights of the recent Newton Institute conference on discrete harmonic analysis was a football … Continue reading
Believing that the Earth is Round When it Matters
A world map. Canada seems much bigger than Israel. Note, however, that in the map countries near the equator looks smaller than they are. Update: The roundearth hypothesis is clearer to the people of New Zealand; see the comments section. … Continue reading
Mathematics to the Rescue: Computing the Root of all Evil
Michael Joswig pointed my attention to the following unbelievable front page of the Frankfurter Allgemeine.
What can the Second Prize Possibly be?
You are guaranteed to win one of the following five prizes, the letter says. (And it is completely free! Just 6 dollars shipping and handling.) a) a highdefinition hugescreen TV, b) a video camera, c) a yacht, d) a decorative … Continue reading
The Mystery Beeping Riddle
We came back from the airport with our daughter who has just landed after a fourmonth trip to India. The car was making a strange beep every so often. Maybe it is an indicator signal that should have … Continue reading
Posted in Mathematics to the rescue, Rationality, Riddles
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