Category Archives: Recreational Mathematics

Math Games That Make You Think

In the echo chamber, social media kinda world that we’re living in, network theory is playing an increasingly important role. So I was delighted, this morning, to spend several minutes playing an interactive game by the talented Nicky Case called … Continue reading

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On Tricurves

Tim Lexen, a mechanical engineer in Cumberland, Wisconsin, wrote a post about tricurves for the Aperiodical. As their name implies, tricurves are sort-of triangle cousins which have three sides, but instead of having three straight edges, each of their sides are … Continue reading

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What Wish Would You Ask a Math Genie to Grant?

“If a genie offered to give you a thorough understanding of one theorem, what theorem would you choose?” blogger John D. Cook recently asked on his @AnalysisFact Twitter account. Responses ranged from the names of theorems to questions about the … Continue reading

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Summer Time is Puzzle Time

It’s Mid-May, that means it time to put away your serious things and time to start thinking about (what else?) math puzzles! Alexander Bogomolny, of CutTheKnotMath, has curated an amazing collection of math puzzles, problems, and interactive lessons. I always … Continue reading

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Math Puzzles To Pass The Time

There are two types of people in this world: those that can only lie, and those that can only tell the truth. You might recognize that as the opening clause of so many knights and knaves problems. These are classic … Continue reading

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The Lure Of The Rubik’s Cube

Who among us has not lost at least one afternoon of their life to that most seductive of toys: The Rubik’s Cube? Originally invented by the Hungarian architect Erno Rubik in 1974, this cube – although apparently not its patents … Continue reading

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Math Games Might Be Sort Of Good For Your Brain

Good news, all that time you spent playing World of Warcraft might have made you smarter. A study out of Stanford just showed that playing video games just 10 minutes each day can make you better at math. The study … Continue reading

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In Praise of People Who Tell Us How to Play with New Toys

I’ve been thinking about getting a 3D printer for a long time but haven’t taken the plunge yet. Aside from the money, space, and inevitable proliferation of small plastic things to step on, part of me is worried I wouldn’t … Continue reading

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It’s Not a Trick, It’s an Illusion

I’ve stumbled on the Best Illusion of the Year Contest a few times, but this is the first year I’ve thought about the illusions mathematically. Dave Richeson wrote two posts about this illusion by Kokichi Sugihara, one of the top … Continue reading

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The Ramanujan Movie

I saw the Ramanujan Movie and I loved it. “The Man Who Knew Infinity,” came out a few weeks ago, starring Dev Patel as Srinivasa Ramanujan and Jeremy Irons as G.H. Hardy, it was a beautifully told story of what … Continue reading

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