Log24

Tuesday, April 23, 2024

Golden Keys

Filed under: General — Tags: — m759 @ 7:55 pm

“Chess problems are the
hymn-tunes of mathematics.”
— G. H. Hardy,
A Mathematician’s Apology

The image “http://www.log24.com/log/pix04A/041010-Hardy2.jpg” cannot be displayed, because it contains errors.
The image “http://www.log24.com/log/pix04A/041010-Mate2.jpg” cannot be displayed, because it contains errors.

Bogart and Lorre in 'Casablanca' with chessboard and cocktail

The key is the cocktail that begins the proceedings.”

– Brian Harley, Mate in Two Moves

"I named this script ocode and chmod 755'd it to make it executable…"

Software forum post on the OCR program Tesseract

Garfield, Dec. 4, 2008:  Mouse's Xmas bulb-lighting

From the author of
The Pearly Gates of Cyberspace:

"Like so many other heroes
 who have seen the light
 of a higher order…."

Wednesday, October 20, 2021

Bullshit Studies

Filed under: General — m759 @ 2:51 am

(Continued)

Yesterday morning's post "First Step" quoted an essay by Michael Spitzer
published online in Aeon  on October 18 —

https://aeon.co/essays/
can-music-give-you-an-orgasm-the-short-answer-is-yes
.

A look at earlier essays in that publication reveals . . .

Related material — From a search for Wertheim in this  journal —
 

http://www.log24.com/log/pix09/090205-cube2x2x2.gif

“Space: what you
damn well have to see.”

— James Joyce, Ulysses  

Friday, July 5, 2013

Self-Evident

Filed under: General — m759 @ 4:30 am

Google sidebar for Richard J. Trudeau's 'The Non-Euclidean Revolution'

Trudeau is a sophist.

Wertheim, on the other hand

Wednesday, May 6, 2009

Wednesday May 6, 2009

Filed under: General,Geometry — Tags: , — m759 @ 11:07 am
Joke

“My pursuits are a joke
in that the universe is a joke.
One has to reflect
the universe faithfully.”

John Frederick Michell
Feb. 9, 1933 –
April 24, 2009 

“I laugh because I dare not cry.
This is a crazy world and
the only way to enjoy it
is to treat it as a joke.”

— Robert A. Heinlein,
The Number of the Beast

For Marisa Tomei
  (born Dec. 4, 1964) —
on the day that
   Bob Seger turns 64 —

A Joke:
Points All Her Own

Points All Her Own,
Part I:

(For the backstory, see
the Log24 entries and links
on Marisa Tomei’s birthday
last year.)

Ad for a movie of the book 'Flatland'


Points All Her Own,

Part II:

(For the backstory, see
Galois Geometry:
The Simplest Examples
.)

Galois geometry: the simplest examples

Points All Her Own,

Part III:

(For the backstory, see
Geometry of the I Ching
and the history of
Chinese philosophy.)

Galois space of six dimensions represented in Euclidean spaces of three and of two dimensions

In simpler terms:

Smackdown!

Garfield on May 6, 2009: Smackdown!

Thursday, February 5, 2009

Thursday February 5, 2009

Through the
Looking Glass:

A Sort of Eternity

From the new president’s inaugural address:

“… in the words of Scripture, the time has come to set aside childish things.”

The words of Scripture:

9 For we know in part, and we prophesy in part.
10 But when that which is perfect is come, then that which is in part shall be done away.
11 When I was a child, I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things.
12 For now we see through a glass, darkly, but then face to face: now I know in part; but then shall I know even as also I am known. 

First Corinthians 13

“through a glass”

[di’ esoptrou].
By means of
a mirror [esoptron]
.

Childish things:

Froebel's third gift, the eightfold cube
© 2005 The Institute for Figuring
Photo by Norman Brosterman
fom the Inventing Kindergarten
exhibit at The Institute for Figuring
(co-founded by Margaret Wertheim)
 

Not-so-childish:

Three planes through
the center of a cube
that split it into
eight subcubes:
Cube subdivided into 8 subcubes by planes through the center
Through a glass, darkly:

A group of 8 transformations is
generated by affine reflections
in the above three planes.
Shown below is a pattern on
the faces of the 2x2x2 cube
that is symmetric under one of
these 8 transformations–
a 180-degree rotation:

Design Cube 2x2x2 for demonstrating Galois geometry

(Click on image
for further details.)

But then face to face:

A larger group of 1344,
rather than 8, transformations
of the 2x2x2 cube
is generated by a different
sort of affine reflections– not
in the infinite Euclidean 3-space
over the field of real numbers,
but rather in the finite Galois
3-space over the 2-element field.

Galois age fifteen, drawn by a classmate.

Galois age fifteen,
drawn by a classmate.

These transformations
in the Galois space with
finitely many points
produce a set of 168 patterns
like the one above.
For each such pattern,
at least one nontrivial
transformation in the group of 8
described above is a symmetry
in the Euclidean space with
infinitely many points.

For some generalizations,
see Galois Geometry.

Related material:

The central aim of Western religion– 

"Each of us has something to offer the Creator...
the bridging of
 masculine and feminine,
 life and death.
It's redemption.... nothing else matters."
-- Martha Cooley in The Archivist (1998)

The central aim of Western philosophy–

 Dualities of Pythagoras
 as reconstructed by Aristotle:
  Limited Unlimited
  Odd Even
  Male Female
  Light Dark
  Straight Curved
  ... and so on ....

“Of these dualities, the first is the most important; all the others may be seen as different aspects of this fundamental dichotomy. To establish a rational and consistent relationship between the limited [man, etc.] and the unlimited [the cosmos, etc.] is… the central aim of all Western philosophy.”

— Jamie James in The Music of the Spheres (1993)

“In the garden of Adding
live Even and Odd…
And the song of love’s recision
is the music of the spheres.”

— The Midrash Jazz Quartet in City of God, by E. L. Doctorow (2000)

A quotation today at art critic Carol Kino’s website, slightly expanded:

“Art inherited from the old religion
the power of consecrating things
and endowing them with
a sort of eternity;
museums are our temples,
and the objects displayed in them
are beyond history.”

— Octavio Paz,”Seeing and Using: Art and Craftsmanship,” in Convergences: Essays on Art and Literature (New York: Harcourt Brace Jovanovich 1987), 52

From Brian O’Doherty’s 1976 Artforum essays– not on museums, but rather on gallery space:

Inside the White Cube

“We have now reached
a point where we see
not the art but the space first….
An image comes to mind
of a white, ideal space
that, more than any single picture,
may be the archetypal image
of 20th-century art.”

http://www.log24.com/log/pix09/090205-cube2x2x2.gif

“Space: what you
damn well have to see.”

— James Joyce, Ulysses  

Friday, December 12, 2008

Friday December 12, 2008

Filed under: General,Geometry — Tags: , , — m759 @ 3:09 pm
On the Symmetric Group S8

Wikipedia on Rubik's 2×2×2 "Pocket Cube"–
 

http://www.log24.com/log/pix08A/081212-PocketCube.jpg
 

"Any permutation of the 8 corner cubies is possible (8! positions)."

Some pages related to this claim–

Simple Groups at Play

Analyzing Rubik's Cube with GAP

Online JavaScript Pocket Cube.

The claim is of course trivially true for the unconnected subcubes of Froebel's Third Gift:
 

Froebel's third gift, the eightfold cube
© 2005 The Institute for Figuring

 

Photo by Norman Brosterman
fom the Inventing Kindergarten
exhibit at The Institute for Figuring
(co-founded by Margaret Wertheim)

 

See also:

MoMA Goes to Kindergarten,

Tea Privileges,

and

"Ad Reinhardt and Tony Smith:
A Dialogue,"
an exhibition opening today
at Pace Wildenstein.

For a different sort
of dialogue, click on the
artists' names above.

For a different
approach to S8,
see Symmetries.

"With humor, my dear Zilkov.
Always with a little humor."

-- The Manchurian Candidate

Monday, December 8, 2008

Monday December 8, 2008

Filed under: General — Tags: — m759 @ 10:12 am

An Indiana Jones Xmas
continues…

 

Chalice, Grail,
Whatever

 

Last night on TNT:
The Librarian Part 3:
Curse of the Judas Chalice,
in which The Librarian
encounters the mysterious
Professor Lazlo

Related material:

An Arthur Waite quotation
from the Feast of St. Nicholas:

“It is like the lapis exilis of
the German Graal legend”

as well as
yesterday’s entry
relating Margaret Wertheim’s
Pearly Gates of Cyberspace:
A History of Space from
Dante to the Internet

 to a different sort of space–
that of the I Ching— and to
Professor Laszlo Lovasz’s
cube space

David Carradine displays a yellow book-- the Princeton I Ching.

“Click on the Yellow Book.”

Happy birthday, David Carradine.

Sunday, December 7, 2008

Sunday December 7, 2008

Filed under: General,Geometry — Tags: — m759 @ 11:00 am
Space and
 the Soul

On a book by Margaret Wertheim:

“She traces the history of space beginning with the cosmology of Dante. Her journey continues through the historical foundations of celestial space, relativistic space, hyperspace, and, finally, cyberspace.” –Joe J. Accardi, Northeastern Illinois Univ. Lib., Chicago, in Library Journal, 1999 (quoted at Amazon.com)

There are also other sorts of space.

Froebel's third gift, the eightfold cube
© 2005 The Institute for Figuring

Photo by Norman Brosterman
fom the Inventing Kindergarten
exhibit at The Institute for Figuring
(co-founded by Margaret Wertheim)

This photo may serve as an
introduction to a different
sort of space.

See The Eightfold Cube.

For the religious meaning
of this small space, see

Richard Wilhelm on
the eight I Ching trigrams
.

For a related larger space,
see the entry and links of
 St. Augustine’s Day, 2006.

Thursday, December 4, 2008

Thursday December 4, 2008

Filed under: General,Geometry — m759 @ 12:00 pm
 
OCODE

"The first credential
 we should demand of a critic
 is his ideograph of the good."

— Ezra Pound,
  How to Read

"OCR is a field of research in pattern recognition, artificial intelligence and machine vision."

 — Wikipedia

"I named this script ocode and chmod 755'd it to make it executable…"

Software forum post on the OCR program Tesseract

Wednesday, Dec. 3, 2008:
Pennsylvania lottery
Mid-day 755, evening 016
New York lottery
Mid-day 207, evening 302

Garfield, Dec. 4, 2008:  Mouse's Xmas bulb-lighting
From the author of
The Pearly Gates of Cyberspace:

"Like so many other heroes
 who have seen the light
 of a higher order…."

For further backstory,
click on the mouse.

Sunday, March 2, 2008

Sunday March 2, 2008

Filed under: General — m759 @ 10:31 pm
Practical Magic

Halloween 2005:

“They don’t understand
what it is to be awake,
To be living
on several planes at once
Though one cannot speak
with several voices at once.”

— T. S. Eliot,
The Family Reunion

Margaret Wertheim with fellow tesseract authors

Several voices:

Margaret Wertheim in today’s
Los Angeles Times and at
The Pearly Gates of Cyberspace
,

Linda Dalrymple Henderson, and

Madeleine L’Engle and husband.

From Wertheim’s Pearly Gates:

Wertheim's 'Pearly Gates of Cyberspace,' page 200
“There is such a thing
as a tesseract.”

Madeleine L’Engle   

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