A star figure and the Galois quaternion.
The square root of the former is the latter.
(This post was suggested by the definition of
the Dirac operator as a square root.)
Friday, February 12, 2021
Root
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Friday, May 4, 2018
Art & Design
A star figure and the Galois quaternion.
The square root of the former is the latter.
See also a passage quoted here a year ago today
(May the Fourth, "Star Wars Day") —
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Saturday, January 20, 2018
The Chaos Symbol of Dan Brown
In the following passage, Dan Brown claims that an eight-ray star
with arrowheads at the rays’ ends is “the mathematical symbol for
entropy.” Brown may have first encountered this symbol at a
questionable “Sacred Science” website. Wikipedia discusses
some even less respectable uses of the symbol.
Related news —
Related symbolism —
A star figure and the Galois quaternion.
The square root of the former is the latter.
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Friday, August 26, 2016
Structure a Set, Set a Structure
A star figure and the Galois quaternion.
The square root of the former is the latter.
See also a search in this journal for "Set a Structure."
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Tuesday, June 28, 2016
Schicksalstag
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Tuesday, October 21, 2014
Eerie Twist
(Continued from Nov. 15, 2011)
Ben Bradlee, legendary Washington Post editor, dies at 93
See also a post of Jan. 20, 2011, and an earlier post on Twelfth Night, 2010.
A star figure and the Galois quaternion.
The square root of the former is the latter.
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Thursday, February 6, 2014
The Representation of Minus One
For the late mathematics educator Zoltan Dienes.
“There comes a time when the learner has identified
the abstract content of a number of different games
and is practically crying out for some sort of picture
by means of which to represent that which has been
gleaned as the common core of the various activities.”
— Article by “Melanie” at Zoltan Dienes’s website
Dienes reportedly died at 97 on Jan. 11, 2014.
From this journal on that date —
A star figure and the Galois quaternion.
The square root of the former is the latter.
Update of 5:01 PM ET Feb. 6, 2014 —
An illustration by Dienes related to the diamond theorem —
See also the above 15 images in …
… and versions of the 4×4 coordinatization in The 4×4 Relativity Problem
(Jan. 17, 2014).
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Saturday, January 11, 2014
Star Wars (continued)
A star figure and the Galois quaternion.
The square root of the former is the latter.
"… Todo lo sé por el lucero puro
que brilla en la diadema de la Muerte."
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Thursday, October 3, 2013
Loosey in the Sky
"Righty tighty, lefty loosey." — Folk saying
See also a figure from this journal
on Lee Marvin's birthday in 2011 —
The square root of the former is the latter.
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Saturday, February 19, 2011
Brightness at Noon (continued)
From Epiphany Revisited —
A star figure and the Galois quaternion.
The square root of the former is the latter.
… Todo lo sé por el lucero puro
que brilla en la diadema de la Muerte.
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