Log24

Friday, February 21, 2020

Frozen

Filed under: General — Tags: — m759 @ 12:30 PM

Friday, January 31, 2020

Zen and the Art…

Filed under: General — m759 @ 2:02 PM

Continues.

Friday, October 27, 2017

Finite Geometry at Zenodo

Filed under: General,Geometry — Tags: — m759 @ 11:32 AM

DOI

Wednesday, September 1, 2021

Tools

Filed under: General — Tags: — m759 @ 11:52 AM

Update at noon, in memory of Victor Snaith

Thursday, February 20, 2020

In Memory of Jack Youngerman…

Filed under: General — Tags: — m759 @ 11:54 PM

An abstract artist who reportedly died at 93 yesterday.

A search in this  journal for Shubnikov yields

"Raiders of the Lost Stone" (December 26, 2017).

Once Upon a Time in Las Vegas

Filed under: General — Tags: — m759 @ 4:25 PM

Wheel Turnin’ ’Round and ’Round

In Memory of Hunter S. Thompson

Filed under: General — Tags: — m759 @ 2:45 PM

“Continue to exercise caution with stories that can only be
corroborated by dead guys."

— Intelligence officer Frank Anderson in the previous post.

Tale

Filed under: General — Tags: , — m759 @ 12:45 AM

“Continue to exercise caution with stories that can only be
corroborated by dead guys. Fabricated stories are almost
never made up out of whole cloth, but are made by stitching
together generally known facts with bits of uncheckable fantasy.”

— Intelligence officer Frank Anderson, who reportedly
died on January 27, 2020.

This journal on that date

Wednesday, February 19, 2020

Aitchison’s Octads

Filed under: General — Tags: , , — m759 @ 11:36 AM

The 759 octads of the Steiner system S(5,8,24) are displayed
rather neatly in the Miracle Octad Generator of R. T. Curtis.

A March 9, 2018, construction by Iain Aitchison* pictures the
759 octads on the faces of a cube , with octad elements the
24 edges of a  cuboctahedron :

The Curtis octads are related to symmetries of the square.

See my webpage "Geometry of the 4×4 square" from March 2004.
Aitchison's p. 42 slide includes an illustration from that page —

Aitchison's  octads are instead related to symmetries of the cube.

Note that essentially the same model as Aitchison's can be pictured 
by using, instead of the 24 edges of a cuboctahedron, the 24 outer 
faces of subcubes in the eightfold cube .

The Eightfold Cube: The Beauty of Klein's Simple Group

   Image from Christmas Day 2005.

http://www.math.sci.hiroshima-u.ac.jp/branched/files/2018/
presentations/Aitchison-Hiroshima-2-2018.pdf
.
See also Aitchison in this journal.

 
 

Friday, October 27, 2017

To Forge a Head

Filed under: G-Notes,General,Geometry — Tags: — m759 @ 12:25 PM

The title was suggested by a 2014 Vanity Fair  piece
by James Toback (Harvard '66).

"He squinted at this vision of a Qualityless world for a while,
conjured up more details, thought about it, and then squinted
some more and thought some more and then finally circled
back to where he was before.

Squareness.

That's the look. That sums it. Squareness. When you subtract
quality you get squareness. Absence of Quality is the essence
of squareness."

— Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance

And when you add  quality?

A related Zen joke from Final Club (June 19, 2017) —

.

Friday, September 23, 2016

Annals of Scientism

Filed under: General — Tags: — m759 @ 12:00 PM

Last night, Thursday, Sept. 22, 2016, at Harvard's Sanders Theatre,
the annual Ig Nobel prizes were awarded.

This journal earlier that day —

Related material —

Wednesday, May 31, 2006

Wednesday May 31, 2006

Filed under: General — m759 @ 3:00 AM
Clint Eastwood
 is 76.

In honor of his birthday,
a three-part meditation
on quality:

Part I —

From The Quality of Diamond,
Log24 entries from Feb. 2004:

The Quality
with No Name

And what is good, Phaedrus,
and what is not good…
Need we ask anyone
to tell us these things?

— Epigraph to
Zen and the Art of
Motorcyle Maintenance

Part II —

From Log24 on
Dec. 7, 2003:

Eyes on the Prize

Dialogue from “Good Will Hunting” —

Will:   He used to just put a belt,
          a stick, and a wrench
          on the kitchen table
          and say, “Choose.”
Sean:  Gotta go with the belt, there.
Will:    I used to go with the wrench.

 Location, Location, Location

Part III —

From the website of
Noam D. Elkies,
Harvard mathematician:

SLUMMERVILLE

Somerville,
Where the livin’ is sleazy:
Folk are humpin’
And the chillun is high.
Oh yo’ daddy’s rich,
‘Cos yo’ ma is good lookin’
So hush, ugly baby,
Or I’ll make you cry.

[“Parody by Noam D. Elkies;
not the original lyrics,
of course.”]

Related material
from Log24 on
April 10, 2006:

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Noam D. Elkies

The Magic Schmuck

Thursday, October 21, 2004

Thursday October 21, 2004

Filed under: General — m759 @ 2:00 PM

A Date Which Will
Live in Infamy

Log24.net Sunday,
December 7, 2003

Annals of Education:

Eyes on the Prize

Dialogue from
“Good Will Hunting” —

Will:    He used to just put a belt,
          a stick, and a wrench
          on the kitchen table
          and say, “Choose.”

Sean: Gotta go with the belt, there.

Will:   I used to go with the wrench.

The image “http://www.log24.com/log/pix04B/041021--GWH2.jpg” cannot be displayed, because it contains errors.

Today’s saint’s day:
St. Ursula

Today’s birthday:
Ursula K. Le Guin

 The image “http://www.log24.com/log/pix04B/041021-Award.jpg” cannot be displayed, because it contains errors.

Today’s Scripture:

Zen and the Art
of Motorcycle Maintenance

The image “http://www.log24.com/log/pix04B/041021-Zen.jpg” cannot be displayed, because it contains errors.

Chapter 20:

“Then, on impulse, Phædrus went over to his bookshelf and picked out a small, blue, cardboard-bound book. He’d hand-copied this book and bound it himself years before, when he couldn’t find a copy for sale anywhere. It was the 2,400-year-old Tao Te Ching of Lao Tzu. He began to read….

Phædrus read on through line after line, verse after verse of this, watched them match, fit, slip into place. Exactly. This was what he meant. This was what he’d been saying all along, only poorly, mechanistically. There was nothing vague or inexact about this book. It was as precise and definite as it could be. It was what he had been saying, only in a different language with different roots and origins. He was from another valley seeing what was in this valley, not now as a story told by strangers but as a part of the valley he was from. He was seeing it all.

He had broken the code.

He read on. Line after line. Page after page. Not a discrepancy. What he had been talking about all the time as Quality was here the Tao, the great central generating force of all religions, Oriental and Occidental, past and present, all knowledge, everything.”

Sunday, December 7, 2003

Sunday December 7, 2003

Filed under: General — m759 @ 2:45 AM

Annals of Education:

Eyes on the Prize

Dialogue from “Good Will Hunting” —

Will:    He used to just put a belt,
          a stick, and a wrench
          on the kitchen table
          and say, “Choose.”
Sean: Gotta go with the belt, there.
Will:   I used to go with the wrench.

 Location, Location, Location

See, too, Dick Morris on triangulation.

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