Log24

Monday, February 20, 2017

Tetrad

Filed under: General — Tags: , — m759 @ 10:31 pm

Wiktionary —

Russian noun . . .

тетра́дь   (tetrádʹ)  f  inan 
(genitive  тетра́ди
nominative plural  тетра́ди
genitive plural  тетра́дей)

Etymology

Borrowing from Ancient Greek τετράδιον  ‎(tetrádion, 
“quaternion of parchment”), from τετράς  ‎(tetrás),

Noun

  1.  exercise book, notebook


See also Tetrad in this journal.

Mathematics and Narrative

Filed under: General,Geometry — Tags: , , — m759 @ 2:40 pm

Mathematics —

Hudson's parametrization of the
4×4 square, published in 1905:

A later parametrization, from this date in 1986:

http://www.log24.com/log/pix11/110220-relativprob.jpg

A note from later in 1986 shows the equivalence of these
two parametrizations:

Narrative —

Posts tagged Memory-History-Geometry.

The mathematically challenged may prefer the narrative of the
Creation Matrix from the religion of the Transformers:

"According to religious legend, the core of the Matrix
was created from Solomus, the god of wisdom,
trapped in the form of a crystal by Mortilus, the god
of death. Following the defeat of Mortilus, Solomus
managed to transform his crystal prison into the Matrix—
a conduit for the energies of Primus, who had himself
transformed into the life-giving computer Vector Sigma."

At 3:33*

Filed under: General — Tags: , — m759 @ 3:33 am

* A reference to a line in a poem in a novel
by Katherine Neville, The Eight  (1988)

Sunday, February 19, 2017

Cast

Filed under: General — Tags: , — m759 @ 7:14 pm

"La morte è avvenuta alle 22.30 di ieri sera nella sua abitazione."
— http://www.repubblica.it/cultura/2016/02/20/news/
morto_lo_scrittore_umberto_eco-133816061/

See also the previous post, "Radical."

Radical

Filed under: General,Geometry — Tags: — m759 @ 6:17 pm

Book from 1969 by the late Michael Novak

Science demonstrator in Boston today —

See as well Galois Imaginary in this journal.

So I called up the Captain, "Please bring me my wine"
He said, "We haven't had that spirit here since 1969"

Ships That Pass in the Night

Filed under: General — Tags: — m759 @ 11:00 am

… Namely,  Scholarship  and  Showmanship  (previous post)

"The suffix '-schaft '  (cognate with the English '-ship ')
can be added to nouns…."

— http://www.dartmouth.edu/~deutsch/
Grammatik/Wortbildung/Suffixes.html

For instance —

"… I’d rely on the old sociological distinction between gemeinschaft  and gesellschaft . All across the world, we have masses of voters who live in a world of gemeinschaft : where relationships are personal, organic and fused by particular affections. These people define their loyalty to community, faith and nation in personal, in-the-gut sort of ways.

But we have a leadership class and an experience of globalization that is from the world of gesellschaft : where systems are impersonal, rule based, abstract, indirect and formal."

— David Brooks, New York Times  columnist, Jan. 20, 2017

The Lost Well

Filed under: General — Tags: — m759 @ 9:45 am

Eight years ago yesterday —

Saturday, February 18, 2017

Not Strange Enough?

Filed under: General,Geometry — Tags: — m759 @ 7:59 pm

Peter Woit today discusses a book by one Zeeya Merali:

Some earlier remarks by Merali:

Zeeya Merali in Nature  on 28 August 2013

"… a small band of researchers who think that
the usual ideas are not yet strange enough.
If nothing else, they say, neither of the two great
pillars of modern physics — general relativity,
which describes gravity as a curvature of space
and time, and quantum mechanics, which governs
the atomic realm — gives any account for
the existence of space and time.

. . . .

'All our experiences tell us we shouldn't have two
dramatically different conceptions of reality —
there must be one huge overarching theory,' says
Abhay Ashtekar, a physicist at Pennsylvania State
University in University Park."

See as well Overarching and Doctor Strange in this  journal.

Solid Symmetry (continued)

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

See Hanks + Cube in this journal For instance

Friday, July 11, 2014

Spiegel-Spiel des Gevierts

Filed under: Uncategorized — m759 @ 12:00 PM 

See Cube Symbology.

Robert Langdon (played by Tom Hanks) and a corner of Solomon's Cube

Da hats ein Eck 

Fluid Requiem

Filed under: General — Tags: — m759 @ 11:45 am

Remarks on fluidity and lucrative ventures in
yesterday evening's post Transformers suggest
a reading in memory of a Catholic philosopher
who reportedly died yesterday at 83 —

Psalm 22:  "I am poured out like water . . . ."

Verbum

Filed under: General,Geometry — Tags: , , — m759 @ 3:00 am

The Log24 version  (Nov. 9, 2005, and later posts) —

VERBUM
SAT
SAPIENTI

 

Escher's 'Verbum'

Escher's Verbum


Solomon's Cube

Solomon's Cube
 

I Ching hexagrams as parts of 4x4x4 cube

Geometry of the I Ching

The Warner Brothers version

The Paramount version

See also related material in the previous post, Transformers.

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