April 29, 2004
April 27, 2004
Totem Pole
It's hiding in some trees near the "history corner" part of the Stanford University quadrangle.

April 26, 2004
Hinged Dissection
A nice animation of Dudeney's four-piece hinged dissection of a square into an equilateral triangle. (In French)
Fun and Urban Violence
Blurb on a new book at the Princeton University Press, Migrants and Militants: Fun and Urban Violence in Pakistan (first chapter as PDF):
Being part of a violent community in revolt can be addictiveit can be fun. This book offers a fascinating inside look at present-day political violence in Pakistan through a historical ethnography of the Muhajir Qaumi Movement (MQM), one of the most remarkable and successful religious nationalist movements in postcolonial South Asia. The MQM has mobilized much of the "migrant" (Muhajir) population in Karachi and other urban centers in southern Pakistan and has fomented large-scale ethnic-religious violence. Oskar Verkaaik argues that urban youth see it as an irresistible opportunity for "fun..."
Interview with Roentgen
Journalist: What did you think?
Roentgen: I did not think, I investigated.
Journalist: What is it?
Roentgen: I don't know.
April 24, 2004
Stanford Fisheye, II
A building on the Stanford campus, next to Hoover tower, possibly part of the Hoover Institution ("On War, Revolution, and Peace."I've always wondered, which?).
Shot with with a fisheye lens.

April 23, 2004
Jordan Jaguar Marching Band
Our neighborhood middle school practices for the Palo Alto May Fete Parade on our street:

Video (1.3Mb, 15 second MPG).
April 22, 2004
Fisheye Fun
I bought a Canon 15mm fisheye lens and took a bunch of experimental photos.
Houses tend to look Lilliputian, perhaps because the walkways and bushes in front of them look too big:
Later, in San Francisco, Jim drove as I pointed the fisheye-equipped camera up at San Francisco buildings. Here's more.
My Quiz Results
Ahem.
I took the online quiz how grammatically sound are you?
(brought to me by Quizilla), with the following result:

You are a GRAMMAR GOD!
If your mission in life is not already to
preserve the English tongue, it should be.
Congratulations and thank you!
April 20, 2004
Stanford Volleyball
Before their last regular season game against University of the Pacificwhich, it must be revealed, is located in Stockton, California, about as conceptually distant from the Pacific Ocean as Lawrence, Kansasthe 2004 Stanford Men's Volleyball team posed for a team photo.
Since I was seated in the endzone with a big telephoto lens, I took a photo of the photo being taken:

(click for larger version)
Once the game started, I was disappointed that I couldn't seem to find a camera setting that took unblurry photos of the action.
To: Jim
From: ThaneHow to take photos inside at a volleyball game that aren't blurry?
No flash allowed.
I tried various settings (the "sports" setting on the Canon came close, but still blurry)
Jim replied:
impossible. the reason pix are sharp @ pro indoor games is because they are very well lit. no flash=no stop action=no good in dim situations.best you can do is is the largest aperture on your fastest lens using aperture priority. bump up the iso setting to 800 or 1600 as well.
you could try panning with the subjectfollowing the player while releasing the shutter. that would isolate him and blur the rest.

I eventually gave up trying to take action shots and just took photos of people standing still:

April 19, 2004
Lloyd George

From Good-Bye to All That, by Robert Graves:
Later, in London, my father took me to a dinner of the Honourable Cymmrodorion Societya Welsh literary clubwhere Lloyd George, then Secretary for War, and W. M. Hughes, the Australian Prime Minister, both spoke. Hughes was perky, dry and to the point; Lloyd George was up in the air on one of his `glory of the Welsh hills' speeches. The power of his rhetoric amazed me. The substance of the speech might be commonplace, idle and false, but I had to fight hard against abandoning myself with the rest of his audience. He sucked power from his listeners and spurted it back at them. Afterwards, my father introduced me to Lloyd George, and when I looked closely into his eyes they seemed like those of a sleepwalker.
April 15, 2004
Two ways to hold a violin bow
Denise illustrated two violin bow grips for me.
One for me while learning:

Her actual grip:
April 14, 2004
Protestors
At the intersection of Embacadero Road & El Camino Real, near Stanford University.
The guy on the left apologized for only having a one-sided sign. He sold me this bumper sticker for $1. It had http://tian.greens.org handwritten on the back.
Experimental Math Conference

Rich Schroeppel (center). In the background, Helaman Ferguson (left), and Sherry Li.
G4G6: Brick Packing
Cole attempts a brick packing puzzle that Bill Gosper distributed at G4G6.

Note added 18 April 2004 He found a solution.
April 13, 2004
Capturing the Oak
Another attempt at photographing the oak tree across the street:

Two earlier attempts: #1 #2
April 03, 2004
G4G6: Biomechanics
Robert Friedhoffer demonstrated how a little kid can make himself almost impossible to pick up by applying appropriate counterforces to the arm and shoulder of the person lifting him.
(I didn't exactly see how this worked).
[Coming soon: a video, which doesn't really help]
G4G6: Micro Aircraft
Matt Keenon demonstrated an amazingly slow-flying and light radio-controlled airplane.

I think it was this one, the .7 ounce Bristol Scout:
It's described as being able to fly 30 minutes inside a 20 x 20 room.
G4G6: People

Alan Schoen & Ed Pegg, Jr

Will Shortz (red tie, left of video camera);
Solomon Golomb (behind camera)


Nick Baxter (facing camera). Albert Lucas (foreground), demonstrating that scarf juggling is no more difficult than flashing seventeen rings.

Erik Demaine (center), Martin Demaine's arm, and Craig Kaplan
G4G6: Juggling
I photographed Albert Lucas juggling four rings, then five, then seven, then eight at G4G6. I also took some (low res) video (6 Mb, about 1 minute, MPG).

He showed a video of himself on the Ed Sullivan show at age ten, and another (more recent) one where he flashed seventeen rings in four groups of 4, 4, 4 and 5, then caught each one.
April 02, 2004
G4G6 + Experimental Math
I spoke at the Gathering for Gardner in Atlanta on the subject of Satterfield's Tomb and at the Experimental Mathematics workshop on Pretending in Combinatorial Games.
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