Caution: This article is a long read, and goes in many directions. For the curious mind, it's a lively mindfield
to explore and come back again and again. If you prefer poster images, never mind.
Some links occur here mostly because they're interesting, and somehow are part of a duality.
For me, duality means at least two things which are associated somehow, but considered separately are different. We don't need to count above 2, like say 'polyality' because obviously the idea of divergence
, or fork, is able to have many 'tines' or separate paths. (See Tuning Fork, below.) We don't have time to cover every possibility, so let's just stick with 2, the most simple case of multiple. (See Rhizome Philosophy
for an interesting alternative to this binary association structure. Also the paragraph titled "Association Schemes" in Exploiting the Pyramid
We aren't considering pairs of identicals, like dual wheels
, two of exactly the same thing, but maybe if there is a small difference
, or doubtful meaning between similar things (see dual internal organs under anatomy, below).
Sometimes the association between things is not obvious, in which case we better explain, but most dualities are obviously two tined
. Let it go at that. Tuning Fork, a synchronous dynamic opposition
, and also an acoustic device having a dual nature similar to both stringed eg. Piano
and other percussion devices (eg. Glockenspiel
. See also disambiguation of similar percussion instruments
. Tuning forks have the advantage of needing no containment structure because their duality counter-balances the vibrations. All the other devices have a single resonator for each tone. Dualism (disambiguation index) | wkpd
Fake Word Similarities Dual not confused with duel
Dual not confused with do all. (Obvious.)
Duality expressions flip side double edged sword Janus faced dark side
-- bright side balance equilibrium equation opposites (word list) positive-negative (photography)
) bilateral symmetry mirror
images, real vs virtual
paired symbols yin-yang (principle) yin-yang (history) Dual Obelisks, ancient Egypt
(had different inscriptions on each) duality as found on tumblr (index)
hypocrisy vs sincerity (philosophical mirror) hypocrisy sincerity sin cere means without wax, not a crackpot idea Being a Leftist Means never having to Say You’re Sorry
title of this essay inspired by a 1970s witticism dual-process theory of human intelligence
The Balance (disambiguation index) | wkpd
, in the physical, a two-sided weight comparator, in the abstract, the equation
... possibly the most significant model (3)
of reality ever conceived
Exercising Equations, For Example...
How can things fly, and boats sail upwind? Bernoulli's two-path model of lift
vs Newton's Reaction of air-inertia model of force
Previous link models a lifting surface as a flat-plane and air is deflected in a single direction. Modeling a lifting surface as an arc also works, but no simple reference explaining this is found. So I'm going to do it, very briefly...
Imagine a wing, or sail, is a simple arc
, and a small sample of air passing by it is like a stone on a string.
. Air has mass
, therefore thrust
ing it around a curve causes a reaction force opposite the center of the curve (aka lift
This is an important example because large commercial aircraft wings are complex mechanical devices that change shape depending on speed
(scroll down to Flaps). At low speed, the wing simulates an arc, and a sail is made loose to form a larger curve. (Sailing in light airs, reduce tension on halyards
, while a tight (more flat) sail configuration is called 'close-hauled'
Binary Thinking, True or False? What is it? | qra Binary opposition
WARNING: Cultural Marxism, deconstruction False dilemma
, an obstacle to effective negotiation, in which nuances and concessions should be considered, not "take it or leave it" ultimatums GOOD, BAD, UGLY? 2015 | stnfd
Example: Evolution vs Religious Tradition (Creationism) Purpose or no Purpose, that's the question: Darwinism: Survival without Purpose 2007
Another example from Mark Driscoll
Biblical Christianity requires black-and-white thinking because it is dualistic... Mainstream culture refuses to allow any categories because that would mean making distinctions, which ultimately ends in making value judgments. (which is DISCRIMINATION!) For the record, I am in favor of discrimination, not by race, but by behavior record. Discriminating Evolution from Intelligent Design (the flaws clause) 7 min Boolean Logic
technical: Bifurcation theory Binary Options
Nature Wave–particle duality | wkpd Wave–particle duality (article index) | scidly Light and Sound CGI video, wave-particle duality 25 min
position vs momentum (uncertainty principle
observer vs object observed (anthropic principle
) Energy-mass duality | wkpd
Mutual-Influence Orbital Oscillation Patterns
Mass Duality vs Time, Effects Lunacy; tidal lock
one side seen, one side hidden Orbital resonance
Example: Earth-Luna orbit each other; Luna's mass is 0.0123 of earth's. Earth oscillates due to Luna, but radius of orbit is less than Earth's radius, so it's less obvious. See Barycenter
. See also NASA
, Luna's orbit
, and Libration
Earth Mother Goddess Duo: Gaia/Medea Hypothesis
Internal Organ Duals, Why? What are paired organs? (lists) 2018 | qra Symmetry Why do we have two of some organs, but not all? 2014 | stkxchg
Respiratory-Circulatory System Overlap (dual function) Venous Blood forced by thoracic-ambient pressure differential
... Heart and lungs are together in the pulmonary cavity, experience simultaneous pressure fluctuations
(scroll down to 'Respiratory Pump'), thus fluid influx and egress (air is a fluid). Respiration includes blood circulation, the respiratory and circulatory systems are inextricably linked.
Note that previous articles omit hydrostatic pressure
which influences venous circulation (fluid pressure is higher at lower elevations, depending on density; eg. Hg (used in barometers) is 13.534g/cm3,
blood is 1.06 g/cm3
(slightly more than water)). When you experience tingling, numbness or swelling due to inactivity, raise the inactive limbs above heart, gravity will help the circulation. Also, dizziness might be due to pressure variations in brain, such as suddenly standing upright after kneeling for awhile. Move more slowly.
Notice that we have only indirect control over heart-rate. We can increase physical activity (especially respiration) voluntarily, then the autonomous nerve system
takes care of the rates. Sex
Origin of Sex Reproduction, Evolution of When Did Sex Become Fun? 2016 | spns A Brief History of Human Sex 2006 | lvsci
Chromosome Duality predicts longevity, reliably Scientists Discover Why women live longer Petrov 8 min
The sex with the reduced sex chromosome dies earlier: a comparison across the tree of life Mar.2020
polarity electrical chemical Polarization (waves)
see also Introduction to Polarized Light magnetic geomagnetic pole geographic antipodes Bi-polar Disorder (mental health) Dysphoric Mania in Bipolar Disorder
(reality IS bipolar, see previous links)
dysphoria is a profound state of unease or a general dissatisfaction with life
split personality, eg. Dr. Jekyll and Mr. Hyde Euphoria
psycho-active stimulants create euphoria 10 BEST LEGAL EUPHORIC HIGH HERBS 2017
See also 4 Most Euphoric Nootropics What are Nootropics? What Is Rejection Sensitive Dysphoria?
Society DUO - Animation Short Film (Fr) 2014 - GOBELINS (for some performance artists, life is a matter of trust) 3.5 min Dual inheritance theory
Bi-polar Disorder (social inequality), topic continues under heading "Double Standard of Morality" (scroll down)... A simple two-tier arrangement of mucked-up social "order" which originated in prehistoric times, a result of a conquering group, aka "ruling class" which maintains a dominant position (see Dominance as social construct
). The privileged class takes advantage in several ways, one of which allows THEM to commit crimes against US without consequence, but the reverse situation is dealt with harshly.
Assuming there is an ecological crisis, Culture Dysphoria 2015
The historic task of cultural change is to resolve throughout the dominant culture the distortions of rationalist human/nature dualisms that deny our ecological embodiment and membership of the global ecological community.
In Reality, trends toward the Cosmopolitan Cluster
are profoundly dissatisfying to conservative individuals. The CC issue is a case of 'the melting pot'
. see also Cosmopolitan Cluster The urban rural divide in the US and other complexities of polarization JUL.17,2019 | ToL
New idea: 'indivi', I'm going to premise means not divided, a singleton, and dual means two. That leads us to... a person is an undivided twosome, let's assume it means mind-body. What exactly is the duality of human nature? | qra
(trick question, see answer by Mike Brant, also good, Marcos Sheldon Padilla (per mind-body), see next link) More about Mind-Body UR2 CGPGrey 5 min Dual Citizenship
list of, a good place to look for spies Editorial: The problem of dual citizenship 2014... “dual citizenship can present a security issue whether to permit access to classified information which affects recruitment, employment and assignments.” -US State Dept. In some cases, dual citizenship could disqualify an applicant for a sensitive position with the CIA or the State Department. (But not so for Israelis?)... List Israeli Dual Citizens in the US. 114th Congress; Bernie Sanders is on it 2016 | SotN
Binary Competition US vs THEM
Right vs Left (politics) angels and demons 2 Class Social Hierarchy (Social Order Simplified)
Double Standard of Morality
... is a necessary adjunct to an US vs THEM ethic... because conflating US with THEM gives us cognitive dissonance; (social) equality is oblivion The Dual Code of Morality CHINA Strategy; moral dualities Double Standard of Morality A necessary adjunct to US vs THEM ethic social equality is oblivion
Bite the Hand that FED you; Ferried by kin-dness from Diaspora
, then They try to sink that "kin"ship How the Jews Destroyed Germany | rjn
Jewish Declaration of War on Nazi Germany 1933 How The Jews Destroyed America | rjn Nazi Jews- “Jew's own worst enemy!” 2007 Makow\rense Cabalist Bankers Funded Hitler Via Wehrmacht Sep.2019 | svmls Jewish Origins of Communism
For (Moses) Hess, the cardinal sin of the Judaic people was to abandon their heritage, while the cardinal objective of his Communism was to persuade all other people to abandon theirs… Israel’s New Ideology of Genocide 2018
Communism was the means for achieving Judaic supremacy over the gentiles. The gentiles were fated to be reduced to a faceless, deracinated mass. Capitalism was also capable of producing this effect, through free trade and the unfettered financialization of society, in which the management of money becomes a vast business in itself, and where the highest virtue, after obeisance to Judaism, is profit.
ve’ahavta (“love your neighbor as yourself”) admonition to Goyim for regarding their Jewish neighbors; as for the Jews themselves, haba le-horgecha, hashkem le-horgo (“he who comes to kill you, rise early and kill him first” as told in 3 Little Pigs))
(wolf) attempts to trick third pig out of his (brick) house by asking to meet him at various places, but he is outwitted each time (3rd pig rises early, does the suggested task, and saves himself from being eaten)
Juice Dualities Juice, and DNA Melting Plot 1 back pages
A take-down of religious "morality" by a "believer"
To Serve the Greater Good, a Moral Philosophy for today++
Survey of Creativity and Destruction 1 Westciv
Garrett Hardin writes: "The essential characteristic of a tribe is that it should follow a double standard of morality -- one kind of behavior for in-group relations, another for out-group." -Wild Taboo "It is a tragic irony that discrimination has produced a species (homo sapiens) that now proposes to abandon the principle responsible for its rise to greatness." Survey of Creativity and Destruction 8; Survival is Objective #1 in Evolution
Wild Taboo; Hardin/Masters
Competitive Exclusion Principle In the competition for living space and resources between two species (or two groups that occupy the same ecological niche), one will inevitably and inexorably eliminate the other. “In a finite universe – and the organisms of our world know no other – where the total number of organisms of both kinds cannot exceed a certain number… one species will necessarily replace the other species completely if the two species are “complete competitors, i.e., live the same kind of life.” Historic Walls: Segregation and Security, defensive duo Disapproval of US.MX Border Barrier Design
Musical Duets (entertainment break from difficult study)
2x(Tico) no Fubá - Duo Siqueira Lima - guitar 4 Hands 3 min (includes brief encore) otra vez... 22x (Tico) Zequinha de Abreu arr. N Kossinskaya guitar quartet 4 min Anabel Montesinos & Marco Tamayo | Mozart, Rondo Alla Turca (w/audience) 3 min
Delibes, Lakmé - Duo des fleurs, Sabine Devieilhe & Marianne Crebassa, 3.8m views since Nov2017 4.5 min
Sun Quan The Emperor (Guzheng & Drum Ver.) 9.6m views since 2015 5 min
MUSA - Chandelier（Sia) & Wrecking Ball Mash - Guzheng and Zhongruan 3.3m views since 2015 3.5 min
Irish Senior Citizen Plays London Mall Piano... Then Magic Occurs; spontaneous Irish duet, Galway and Kerry 582k views since Jun.3.2019 (today is Jun.10) 7 min
Rasputin (Boney M) (viol/cello)- The Ayoub Sisters 3.4 min
A.Montesinos & M.Tamayo-Tres canciones de The Beatles-Stagione Internazionale di Chitarra Classica 9.9 min
Fool on the Hill; She's Leaving Home; Penny Lane; Crazy - Patsy Cline Cover (Allison Young vocals, Josh Turner Guitar) 8.5k views 3.3 min
Dancing, an exercise in aesthetic, social duality
Grace on Ice Gabriella PAPADAKIS, Guillaume CIZERON, 2016 WC's music: Perfect- Ed Sheeran 4.3 min
A family exercise Derek and Julianne, music: "Unsteady" 2 min
Piano Duet, + 3 couples in traditional form Andrea & Matteo Bocelli, music: "Fall On Me" 2.6 min
Memorabilia (skips emotional intro) Jordan and Lindsay contemporary style, music: “Take Me Home” 1.3 min dance episode ends at 3:00
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