October 31, 2014






Coming attractions

September 26, 2014


The day is coming

November 19, 2013

Bad Wolf(BSU, last year. See also here and here.)


November 8, 2013

Isn’t this cute?


All the kids in Francisco’s class drew themselves. And then they got a class shirt with all the drawings. I think the idea is to wear it every Friday.

I got one for myself as well.

(Bemmy is the one farthest to the right, in the front row.)


November 1, 2013

Superspiderman, last night.

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Euler on research

September 20, 2013

Found a great quote while reading through Lagarias’s recent paper on Euler’s constant,

Jeffrey C. Lagarias. Euler’s constant: Euler’s work and modern developments, Bull. Amer. Math. Soc. (N.S.), 50 (4), (2013), 527–628. MR3090422.

Lagarias quotes Truesdell,

 Clifford Ambrose Truesdell, III. An idiot’s fugitive essays on science, Methods, criticism, training, circumstances. Springer-Verlag, New York, 1984. MR769106 (86g:01060); and Great scientists of old as heretics in “the scientific method”. University Press of Virginia, Charlottesville, VA, 1987. MR915762 (88m:01038).


C. Truesdell [303, Essay 10], [304, pp. 91–92], makes the following observations about the methods used by Euler, his teacher Johann Bernoulli, and Johann’s teacher and brother Jacob Bernoulli:

  1. Always attack a special problem. If possible solve the special problem in a way that leads to a general method.

  2. Read and digest every earlier attempt at a theory of the phenomenon in question.

  3. Let a key problem solved be a father to a key problem posed. The new problem finds its place on the structure provided by the solution of the old; its solution in turn will provide further structure.

  4. If two special problems solved seem cognate, try to unite them in a general scheme. To do so, set aside the differences, and try to build a structure on the common features.

  5. Never rest content with an imperfect or incomplete argument. If you cannot complete and perfect it yourself, lay bare its flaws for others to see.

  6. Never abandon a problem you have solved. There are always better ways. Keep searching for them, for they lead to a fuller understanding. While broadening, deepen and simplify.

School picture

September 15, 2013

“OK. Smile for the camera.”

“Uh, mmm, OK. Let’s try again. Smile.”

“Hehe. Let’s smile this time.”


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August 29, 2013

Tuesday, August 27, 2013. First day of school.

2013-08-27 08.44.10 2013-08-27 09.11.15

(Friday night. “What do you mean I begin classes on Monday?”)

The Dalek invasion of Boise

June 1, 2013

So, we went to Kathryn Albertson Park, to play football. But it was so hot, and there were so many geese mementos on the grass, that Francisco felt unhappy, and wanted to go home instead.

We are walking back to the car, when


“Wait. Is that a Dalek?” Francisco was ahead of me. He stopped, came back, and looked at where the camera and I were pointing.

“Yes. That’s a Dalek. And that’s the Doctor.”


The part that I wasn’t expecting was what happened next. He looked at Najuma and I, scared, and said:

“I want to get in the car. Let’s go home.” He started to go for the car, then he looked at me. Why are you not running, you fool?

“No, wait, let me take another picture.”

“No, no, let’s go. Let’s go…” There is a Dalek in the park coming for us, you people, what are you doing? Run! RUN!!

“Oh, it’s talking, what is it saying?”

What else, really? EX-TER-…

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Olden days

May 23, 2013

Martin Conference, Berkeley, May 27-28, 2001.

Martin-Group-medium(If someone has a version in higher resolution, or pictures of the conference, please contact John Steel, or myself.)

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