- The counterclockwise image on the right was adapted from the clockwise File:Yin_and_Yang.svg. Its neutral background enables the color of the circle to be inverted most easily.
This is the Yin-yang symbol or Taijitu (太極圖), with black representing yin and white representing yang. It is a symbol that reflects the inescapably intertwined duality of all things in nature, a common theme in Taoism. No quality is independent of its opposite, nor so pure that it does not contain its opposite in a diminished form: these concepts are depicted by the vague division between black and white, the flowing boundary between the two, and the smaller circles within the large regions.
— From Description of File:Yin_yang.svg
- Third law (aka action-reaction law)
- To every action there is always an equal and opposite reaction: or the forces of two bodies on each other are always equal and are directed in opposite directions.
- The equation of chemical equilibrium
Moebius band 
Perhaps most of the honey-colored (yang or daylight) side is unseen, implicit, on the background, hence the following 2x2 contingency table, so to speak, quadrant or duplex yin-yang:
- Toward a more coherent perspective
- Read the lines from right to left.
- In the Far East, the colors are related to the four cardinal directions and the center.
- Such relations may well be further applied to the solar and life cycles.
- The steps inspire, depress, explode, expire are the four strokes of the internal combustion engine cycle.
- The steps refer, encode, decode, infer are the quadrants of a unit dialog analogous to an engine cycle. The term refer accords with Ogden & Richards (1923) and F. P. Strawson (1950) "On Referring" (subjective cognition or thinking) as a rejoinder to Bertrand Russell (1905) "On Denoting" (objective signification or encoding).
- The steps plan, act, observe, reflect are of the experiential learning cycle as formulated by Carr & Kemmis (1986) Becoming Critical.
- The Greek four classical elements are newly interpreted and related accordingly.
- Dryness may better be regarded as haziness, not sharply contrasted with wetness or wateredness.
- The ancient Greek's view on four elements, juxtaposed by another quadrant yin-yang of properties, seems to stress the circulation from element to element.
- The Möbius band may be responsible for twisting the diagonal opposition of fire vs. water and air vs. earth, as shown in the low right square.
- The Korean 흙 (earth) may be cognate with 흑 (黑, black, north), either being romanized heuk.
Animation of a Foucault pendulum at the Pantheon in Paris (48°52' North), with the Earth's rotation rate greatly exaggerated. The green trace shows the path of the pendulum bob over the ground (a rotating reference frame), while the blue trace shows the path in a frame of reference rotating with the plane of the pendulum.
Quadrant coding cycle 
Triangle of reference 
Ego and reality 
|Idea (mental discourse)||. . . . . . . . .
Information retrieval model 
- Argument for direct access to Document D even extracted
- Instead of its too rough and ambiguous Surrogate d, hence, the thesis of A Direct Approach to Information Retrieval
- The citing extracts necessarily refer to the cited, hence unavoidably a web of hypertexts in need indeed!
- The need for the "world encyclopaedia," "world wide network" or web of scientific information, in general, has been projected perhaps most outspokenly and unselfishly by H. G. Wells since the mid 1930s, evidently in his World Brain (1938). Hence, he is at least a decade earlier pioneer in hypertext than the most celebrated Vannevar Bush who wrote a mere 8-page essay (1945) "As We May Think" without references, perhaps mainly aiming to invite investors to the rapid microfilm selector of his MIT team's patent. Then, what a shame (shamefulness and shamelessness) it is to uniquely make a hero of a selfish commercialist or capitalist at the sacrifice of the real, unselfish, utilitarian hero.
- The epoch-making emergence in 2006 of Pirate Party and WikiLeaks and twitter may be a sign of rebellion against too selfish capitalism, which looks like hanging on the crossroad to have to show up its truly unselfish self interest that may be too far away in this state of the world. The world without making sense of justice would make no more sense than just a jungle. This is a warning for a healthy capitalism to survive. No ism whatsoever without justice! No nuclear power but just world peace as Wellls wished!
- Direct manipulation
- Hence, human-computer interaction, HCI, at last
- In which Ben Shneiderman is also an expert
- Or, computer-human interaction, CHI, at first
- As the ACM SIG/CHI suggests
- As the Greek X (chi) suggests the System-User interaction, S x U
Self-organizing blackboX 
An artwork may be worth a thousand words. That may be why so many people try to draw anyway.
The significance of what the drawing on the right signifies may relate to such critical notions as second-order cybernetics and self-organization, as witnessed by the famous cybernetic pioneers, including Gregory Bateson, Margaret Mead, Heinz von Foerster, Gordon Pask, Staford Beer, Humberto Maturana, w: Francisco Varela, etc., regardless of alleging who was the real progenitor, perhaps among them, closely related one way or another, three of whom you may note happen to be the alumni of University College London. As much as such, the college authority must bother and help make clear who was the real progenitor. Pask claimed it was von Foerster so that the world should be convinced of the truthfulness enough to pay homage to him.
Second-order cybernetics 
It emphasizes the requirement for a possibly constructivist participant observer in the second order case:. . . essentially your ecosystem, your organism-plus-environment, is to be considered as a single circuit. 
The above year "1973" may be not only mistaken for 1976 but also deliberated, as it is subtly hanging on the verge of the 1975 world brain storming!
This following article is of a conversation between Stewart Brand, Gregory Bateson and Margaret Mead and was originally published in the CoEvolutionary Quarterly, June 1976, Issue no. 10, pp. 32-44. http://www.oikos.org/forgod.htm
- C. K. Ogden & I. A. Richards (1923). The Meaning of Meaning: A Study of Influence of Language upon Thought and of the Science of Symbolism. 
- C. K. Ogden (1930). Basic English: A General Introduction with Rules and Grammar. 
- Alfred Korzybski (1933). Science and Sanity: An Introduction to Non-Aristotelian Systems and General Semantics.
- I. A. Richards (1936). The Philosophy of Rhetoric. 
- H. G. Wells (1938). World Brain.
- J. D. Bernal (1939). The Social Function of Science.
- Norbert Wiener (1948). Cybernetics: or Control and Communication in the Animal and the Machine.
- C. P. Snow (1959). The Two Cultures and the Scientific Revolution.
- Thomas Kuhn (1962). The Structure of Scientific Revolutions.
- Karl Popper (1963). Conjectures and Refutations: The Growth of Scientific Knowledge.
- Fritjof Capra (1975). The Tao of Physics.
- Paul Feyerabend (1975). Against Method: Outline of an Anarchistic Theory of Knowledge.
- Paul Grice (1975). "Logic and Conversation," in: Syntax and Semantics Vol. 3: Speech Act. pp. 41-58.
- Manfred Kochen, ed. (1975). Information for Action: From Knowledge to Wisdom.
- David A Kolb and R. E. Fry (1975). "Toward an Applied Theory of Experiential Learning," in: C. L. Cooper (ed.) Theories of Group Process, London: John Wiley & Sons. pp. 33-58.
- Walker Percy (1975). The Message in the Bottle.
- Michael Polanyi (1975). Meaning.
- Paul Ricoeur (1975). The Rule of Metaphor: Multi-Disciplinary Studies in the Creation of Meaning in Language.
- Dan Sperber (1975). Rethinking Symbolism.
- D. J. Shallcross (1975). "Creativity: Everybody's Business." Personnel and Guidance Journal, 51(9), 623-626.
- Edward Wilson (1975). Sociobiology: The New Synthesis.
- Nicholas Maxwell (1976). What's Wrong with Science?
- Albert Bandura (1977). Social Learning Theory.
- Ronald Dworkin (1977). Taking Rights Seriously.
- Umberto Eco (1977). A Theory of Semiotics.
- Joseph Novak (1977). A Theory of Education.
- Karl Popper & John Carew Eccles (1977). The Self and Its Brain: An Argument for Interactionism.
- Nicholas Rescher (1977). Methodological Pragmatism: A Systems-Theoretic Approach to the Theory of Knowledge.
- E. F. Schumacher (1977). A Guide for the Perplexed.
- Herbert Simon (1977). Models of Discovery: And Other Topics in the Methods of Science.
- Chris Argyris & Donald Schön (1978). Organizational Learning: A Theory of Action Perspective.
- James Burke (1978). Connections: Alternative History of Technology.
- Arthur Koestler (1978). Janus: A Summing Up.
- Gregory Bateson (1979). Mind and Nature: A Necessary Unity (Advances in Systems Theory, Complexity, and the Human Sciences).
- Hubert Dreyfus (1979). What Computers Can't Do: The Limits of Artificial Intelligence 2nd ed.
- Jurgen Habermas (1979). Communication and the Evolution of Society.
- Andrew Ortony, ed. (1979). Metaphor and Thought.
- Richard Rorty (1979). Philosophy and the Mirror of Nature.
- George Lakoff & Mark Johnson (1980). Metaphors We Live By. [*]
- Nicholas Maxwell (1984). From Knowledge to Wisdom: A Revolution in the Aims and Methods of Science.
C. K. Ogden & I. A. Richards (1923). The Meaning of Meaning: A Study of Influence of Language upon Thought and of the Science of Symbolism.
- This also stands for computer-human interaction, at least at first!
- "The study of an object alive more enlightening than that of its dead remains. The 'Sign-situation' of the Authors corresponds to the 'Context of Situation' here introduced." -- Bronislaw Malinowski[w] (1923). "The Problem of Meaning in Primitive Languages." (Supplement I, p. 296-336) In: Ogden & Richards (1923).
- Note the subtitle of: Manfred Kochen ed. (1975) Information for Action: From Knowledge to Wisdom that promotes H. G. Wells[w] (1938) World Brain.[w] See also: DIKW.[w]
- Manfred Kochen (1987). "How Well Do We Acknowledge Intellectual Debts?" Journal of Documentation, 43(1): 54-64. (pdf) Kochen was a leader in the 1975 revolution, who edited Information for Action: From Knowledge to Wisdom (1975), positively aiming H. G. Wells's metascientific strategy of World Brain[w] for human welfare and against human warfare.
- C. K. Ogden (1930). Basic English: A General Introduction with Rules and Grammar.