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Theron Hitchman
Works at University of Northern Iowa
Attended University of Michigan
30,844 followers|458,587 views
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Theron Hitchman

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+Paul Harper, +Vincent Knight: i believe this has raised my expectations.

Do you think you can book a little time on the Wales Wide Web for me to try? +Robert Talbert and +Dana Ernst will probably want in on the deal, too.
( I think Mr Talbert is off social media at least until Monday, but after that he may want a little internet time.)
 
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done, You have 2 persons scheduled for 7:30am on Thursday, 20 August 2020 at mainframe terminal 3 at National Library of Wales for 1/2 hour. Please bring a picture ID and arrive 45 minutes early to wait for proctor instructions.
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Theron Hitchman

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This is pretty awesome.
 
1-sided dice.
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Yup. "You don't understand how this works..."
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Theron Hitchman

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Make something interesting today.
 
Order in Chaos

That's what Taffgoch, the creator of this picture, calls it.  It's a computer-generated image, made to look nicely weathered... but it's based on an actual model, made by a monk named Father Magnus Wenninger.

Wenninger's story is interesting.  In the 1940s went to the Bahamas to teach at a Benedictine school there. He was asked whether he wanted to teach English or math.  He chose math. But not having taken many math courses in college, he struggled at first to stay a few pages ahead of the students!  He taught algebra, Euclidean geometry, trig and analytic geometry. 

In the 1950's he felt he was getting stale, so he went to Columbia Teachers College in the summer for 4 years.  He got interested in the “New Math"... and started studying polyhedra.

In 1966 he wrote a booklet called Polyhedron Models for the Classroom.  He wrote to H. S. M. Coxeter, the world's expert on polyhedra and higher-dimensional polytopes, sometimes called the 'king of geometry'.   Apparently Coxeter sent Wenninger a copy of his book Uniform Polyhedra

A uniform polyhedron is one that has regular polygons as faces and is symmetrical enough that there's a symmetry carrying any vertex to any other.  There are 75 uniform polyhedra - not counting the infinite list of prisms and 'antiprisms'... and a very weird thing called the 'great disnubdirhombidodecahedron'... which is a topic for another day.

After getting Coxeter's book, Magnus Wenninger spent a lot of time making models of uniform polyhedra. He made 65 of them and put them on display in his classroom. Then he decided to publish a book about them. He had the models photographed and wrote the accompanying text, which he sent to Cambridge University Press.

They said they'd be interested in the book only if Wenninger built all 75 of the uniform polyhedra!  And so he did...

It took him 10 years to finish the book, Polyhedron Models, which was published in 1971.   Mathematics is full of stories of amazing persistence, and this is one!  

The key, which not everyone realizes, is that math is immensely fun.   To leave behind this world of woe and lose yourself in a world of beauty and perfection - it's dangerously addictive.

Puzzle: this shape is covered with little pentagons, little hexagons and funny-looking nonconvex shapes.  How many of each are there?

It only takes a tiny bit of persistence to figure this out... at least compared to Wenninger's persistence.

I got my story from here:

https://en.wikipedia.org/wiki/Magnus_Wenninger

and the image from here:

http://taffgoch.deviantart.com/art/Order-in-Chaos-214480976

#geometry
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Theron Hitchman

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+Henry Segerman gives the 2014 Shankar Memorial lecture.

This was a very good introduction to some 3D and 4D geometry for a general audience.
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Have him in circles
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Theron Hitchman

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Amen to the quoted sentiment.
 
There is a way to present things so that people tell you, ’Oh, I feel so stupid and ignorant in front of you,’ and there’s another way to tell things and people will say, ’Oh, I feel so intelligent when I’m listening to you."
~Cédric Villani


Going Gaga for Math - The study of math is in decline, and this Frenchman may have the flair to fix that.
This eccentric, fast-talking genius is using his infectious love of numbers to market a tricky product: He wants to popularize math worldwide.
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Theron Hitchman

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I just watched this with +Jean Hitchman and our oldest ( a 10 yo). It was excellent. I recommend it for the joy exhibited in sharing the science and the quality of production.

I will make time to watch the other two installments soon.
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Theron Hitchman

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+Jean Hitchman check it out!.

(seen via +John Cook )
 
Eggses.

Credit: Marilyn Henderson
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Tried the new Google camera app for android. I have no opinion at this time. But I did end up with pics of my friends!
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The flesh tones are pretty good considering the yellow color tones in the room.  The color is rich.  The white balance is good.
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Theron Hitchman

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My daily dose of grounding.

give feedback, not advice

Eventually, this will become second nature, right? For now, it takes concentration to get this right.
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Really useful to be reminded of this.
Great advice feedback!
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People
Have him in circles
30,844 people
Work
Occupation
Professor of Mathematics
Employment
  • University of Northern Iowa
    Professor of Mathematics, 2007 - present
  • Rice University
    VIGRE Lovett Instructor of Mathematics, 2003 - 2006
  • Williams College
    Visiting Assistant Professor, 2006 - 2007
Basic Information
Gender
Male
Story
Tagline
College Mathematics Teaching, only mostly insane.
Introduction
I am interested in:
Math (especially geometry),
Inquiry Based Instruction,
Standards based assessment,
learning Python,
the Sage math software project,
Soccer,
good books.
Education
  • University of Michigan
    Mathematics, 1997 - 2003
  • THE Ohio State University
    Mathematics, 1993 - 1997