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# Posts

### December 20, 2014

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(Click on the comic if you can't see the full image.) (C)Copyright 2014, C. Burke.Expressing my True Love mathematically and recursively. This comic calls to mind my Twelve Triangle Numbers of Christmas from way back in 2007. Once again, I used pseudo-code here, and not any particular programming language. I wouldn't program it exactly like this, but I wanted it to be readable. As for the summations, those actually caused me some problems -- or at least a bit of thought about how they […]
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Spotted on the Web: The Political Hat had a post about the Common Core in Jeopardy category. What makes this interesting is that there was an "Update" to the common with a link to my column from two weeks ago. (Yeah, me!) Maybe this is the reason that Michelle Malkin of Twitchy.com suddenly started following me out of the blue. (Double Yeah, me!) The fame is going full-circle. Or inside-out. Or something. Moving up from the H-list to the G-list. I'll be on the D-list before you know it! The […]
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No summary available for this post.

### December 19, 2014

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New enamel works by Eugeny Matko   http://im-possible.info/english/art/applied_art/eugeny-matko.html#burden
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It's always tough to pick my favorite visualization projects. I mean, it's a challenge to pick and rank your favorite anything really. So much depends on what you feel like at the time, and there's a lot of good work out there. Nevertheless, I gave it a go. Tags: best-of
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Just a couple weeks after Jeopardy had its Non-Common Core Math category during Kids Week, they ventured again into that academic field, but this time with adults. They fared a little better. For one thing, they made it through all five clues, including a Daily Double, and they didn't wait until everything else was exhausted. Unlike the kids' clues, these didn't all have to do with the numbers 1, 2, 3, 4, 5 being added and multiplied. The first question involved calculating a 20% tip on a […]

### December 18, 2014

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Impossible square   by CareCube   http://im-possible.info/english/art/montage/carecube.html   Author - http://carecube.deviantart.com/
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I'm pretty sure there's a ton of untapped potential in data represented physically. Maybe not in the analytical insights sense …Tags: physical
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twocubes: four-bar linkages, and how changing the length of the bars affects the motion in one particular case
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(Click on the comic if you can't see the full image.) (C)Copyright 2014, C. Burke.Remember to place all your holiday orders of operations early so they'll arrive in time ... and in the correct order.

### December 17, 2014

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Crop circle near Bedfordshire in June of 2003 http://im-possible.info/english/art/misc/crop-circles.html#bedfordshire
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When a baseball player is hitting well, commentators will sometimes say that it looks like he's hitting with a bigger …Tags: baseball, physical, sports
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maggie-stiefvater: nevver: What’s wrong with this picture? I’ll tell you what’s wrong with this picture: assumption. This picture has gone viral as thousands of people deliver searing indictments of both smartphones and teens. I’ve met a couple of teens. I’ve had a couple smartphones. Could these teens be playing Angry Birds or texting stupid jokes to each other? Yeah, they could. But they could also be googling provenance for that painting or taking a second to text a friend about […]
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Assisting today in a Geometry class. It was Day 2 of Arcs of a Circle. Yesterday, the teacher covered central angles with the class, which meant that today's lesson moved to the inscribed angles. She carefully and diligently explained what makes an inscribed angle, and how the line segments intercept an arc in a similar way that they saw in the previous lesson. And then we got into the relationship between the arcs and the two types of angles. The measure of an arc of a circle is equal to the […]
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curiosamathematica:This conference room is 11 units long and has three folding partitions at positions 2, 7 and 8. For a meeting of any given size, the room can be configured in exactly one way using this folding partitions. This makes it an example of a Golomb ruler, named for Solomon Golomb and discovered independently by Sidon and Babcock. These are sets of marks at integer positions along an imaginary ruler such that no two pairs of marks are the same distance apart. The number of marks on […]

### December 16, 2014

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Recent data from the Census Bureau suggests the rate of non-working men has increased. As more women go to work …Tags: Amanda Cox, employment, Upshot

### December 15, 2014

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As promised yesterday, more about my weekend meet-ups. On Friday Night, a gathering of #mathednyc took place at the offices of Offices of New Visions for Public Schools on West 13 Street in New York City, dubbed the #NYCMathTweetUp. I'm not sure how the capitalization worked with hashtags. Prior to the event, I read that n > 30 had RSVPed, where n is "the number of people interested". However, upon arrival, I discovered fewer than that made it there on a cold night, but this didn't discourage […]
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Tragedy #469   by Benjamin Dewey   http://im-possible.info/english/art/cartoons/benjamin-dewey.html   Author - http://tragedyseries.tumblr.com/
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My new favorite pie chart. Via Flowing Data.
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You make and publish bits of data about yourself, intentionally and unintentionally, and it goes to the indexed public web …Tags: Ben Goldacre, privacy
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When you have your phone's Wi-Fi turned on, even if you're not connected to anything, you broadcast the networks you've …Tags: privacy, Wi-Fi
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twocubes: visualizingmath: twocubes, does this have anything to do with logarithmic spirals? A few years ago, I used a compass to draw something quite similar to this! It’s so interesting to see it in gif form, zooming in.  Anyway, cool gif!  more or less; you can view the points of tangency between the circles as being on a logarithmic spiral shaped like something like r=α2^(3tθ/2π) for some constant α (I think); basically the circular arcs that go from one point of tangency to the […]
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Until recently, I had a lot of make-up weekends, lost Saturdays and Sundays were I made-up the backlog of work that I let snowball from Monday to Friday (or the week or weeks before). However, this weekend was a Meet-up Weekend, where I got to meet up with people I didn't know personally beforehand, but now I can say I have. Warning: These meetups keep me out late -- not complaining. On the contrary, glad that I'm out of a rut. On the other hand, I haven't made up the sleep yet, so this is a […]
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twocubes, does this have anything to do with logarithmic spirals? A few years ago, I used a compass to draw something quite similar to this! It’s so interesting to see it in gif form, zooming in.  Anyway, cool gif!

### December 14, 2014

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Artworks by Paul Laffoley   http://im-possible.info/english/art/various/paul-laffoley.html   Artist - http://paullaffoley.net/
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Tattoos by Sean Danger Rhodes   http://im-possible.info/english/art/misc/tattoo/sean-danger-rhodes.html   Author - http://instagram.com/sean_danger_rhodes
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mindfuckmath: Made to Order Draw three circles of equal size and inscribe them with a pentagon, a hexagon, and a decagon. The sides of these figures form a right triangle — and half of a golden rectangle.
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It's seems like every day, like every number, has something special about it, but as George Orwell might've said, but wisely chose not to, "Some dates are more special than others". (Had he said something about some numbers being more equal than others, that could've been a problem, but would've fit well into his theme. But that's a subject for another blog post.) Today is Consecutive Number Day because it is 12/13/14. We've had a Consecutive Number Day for each of the past 11 years -- TWO, if […]