Category Archives: links

Picture this

Picture this! is a very cool interactive thingy, made by Jason Davies, intended to get students (or anyone, really) thinking about some interesting math. Go play around with it and see if you can answer any of the listed questions … Continue reading

Posted in challenges, links, pattern, pictures | Tagged , , , | 6 Comments

Wythoff’s game at Three-Cornered Things

I’ve really been enjoying Zachary Abel’s series of posts on Wythoff’s game [Wythoff’s Game: Red or Blue?; A Golden Observation; The “Fibonacci”est String; Wythoff’s Formula], over on his blog Three-Cornered Things. The Fibonacci numbers show up in the strangest places! … Continue reading

Posted in fibonacci, games, links | Tagged | 7 Comments

Nature by Numbers

This has been making the rounds of the math blogosphere (blathosphere?), but in case you haven’t seen it yet, check out Cristóbal Vila’s awesome short video, Nature by Numbers. Especially appropriate given that I have been writing about Fibonacci numbers … Continue reading

Posted in fibonacci, golden ratio, links, video | Tagged , , , , | 1 Comment

Carnival of Mathematics 86

Welcome to the 86th Carnival of Mathematics! is semiprime, nontotient, and noncototient. It is also happy since and . In fact, it is the smallest happy, nontotient semiprime (the only smaller happy nontotient is 68—which is, of course, 86 in … Continue reading

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New Carnival of Mathematics

The Carnival of Mathematics has been revived! A big thanks to Mike Croucher of Walking Randomly for organizing it for the past few years, and to Katie Steckles, Christian Perfect, and Peter Rowlett for taking over. The latest edition, carnival … Continue reading

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Dimensions: go watch! now!

I finally got around to watching the Dimensions videos, which I mentioned once before. They are super cool and will be sure to blow your mind! They start by explaining some simple tools (stereographic projection) and intuition (with references to … Continue reading

Posted in fractals, geometry, links, video | Tagged , , , , | 2 Comments

Relatively Prime: Stories from the Mathematical Domain

Samuel Hansen needs your help! He’s currently raising money to create a series of podcasts explaining math to a wide audience. From the linked video, it looks like they will be a lot of fun, and I think it would … Continue reading

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Happy Tau Day!

Happy day! , of course, is the fundamental circle constant which represents the ratio of any circle’s circumference to its radius. (In the past people have also used the symbol “” to represent half of ; perhaps you’ve heard of … Continue reading

Posted in famous numbers, links, video | Tagged , , | 3 Comments

The wonderful world of Mike Reilly

The other day I received an email from Mike Reilly, who introduced himself as a professional game and puzzle inventor, and suggested that I might be interested in taking a look at a few of his web sites. I wasn’t … Continue reading

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Vi Hart's math doodles

Vi Hart’s math doodle videos have been making the rounds of the math blogosphere (I heard of them from Denise at Let’s Play Math!). There are four videos so far and they are well worth watching — inspirational, creative, full … Continue reading

Posted in games, humor, links, people, video | Tagged , , , | 2 Comments