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Topic: Causality physics

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PhiloSophy

	Consciousness, Causality, Quantum Physics
		The standard interpretation of quantum physics assumes that the quantum world is characterized by absolute indeterminism and that quantum systems exist objectively only when they are being measured or observed.
		According to the conventional interpretation of quantum physics, however, not only is it impossible for us to measure a particle's position and momentum simultaneously with equal precision, a particle does not possess well-defined properties when it is not interacting with a measuring instrument.
		Bohm's ontological interpretation of quantum physics rejects the assumption that the wave function gives the most complete description of reality possible, and thereby avoids the need to introduce the ill-defined and unsatisfactory notion of wave-function collapse (and all the paradoxes that go with it).
	ourworld.compuserve.com /homepages/dp5/jse.htm (3596 words)

	Causality (physics) - Wikipedia, the free encyclopedia
		Causality describes the relationship between causes and effects, and is fundamental to all natural science, especially physics.
		In classical physics, it was assumed that all events are caused by earlier ones according to the known laws of nature, culminating in Pierre-Simon Laplace's claim that if the current state of the world would be known with precision, it could be computed for any time in the future.
		This is equivalent to the statement that the cause and its effect are separated by a timelike interval, and the effect belongs to the future light cone of its cause.
	en.wikipedia.org /wiki/Causality_(physics) (600 words)

	Causality - Wikipédia
		While the perceived observance of causality is quite possibly the most basic pattern in human experience, David Hume held that causes and effects are not real (or at least not knowable), but imagined by our mind to make sense of the observation that A often occurs together with or slightly before B.
		Attribution can be external (assigning causality to an outside agent or force - claiming that some outside thing motivated the event) or internal (assigning causality to factors within the person - taking personal responsibility or accountability for one's actions and claiming that the person was directly responsible for the event).
		According to these groups, causality does not proceed inward, from external random causes toward effects on a perceiving individual, but rather outward, from a perceiving individual's causative mental requests toward responsive external physical effects that only seem to be independent causes.
	su.wikipedia.org /wiki/Causality (1856 words)

	Learn more about Causality in the online encyclopedia. (Site not responding. Last check: 2007-10-28)
		Causality, or causation, is the relationship between causes and effects.
		That said, under certain assumptions, parts of the causal structure among several variables can be learned from full covariance or case data by the techniques of Path analysis and more generally, Bayesian networks.
		Generally these inference algorithms search through the many possible causal structures among the variables, and remove ones which are strongly incompatible with the observed correlations.
	www.onlineencyclopedia.org /c/ca/causality.html (620 words)

	Causality (physics) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-28)
		In (Click link for more info and facts about modern physics) modern physics, the notion of causality had to be clarified.
		In quantum field theory, causality is closely related to the (Click link for more info and facts about principle of locality) principle of locality.
		For example, the notion that events can be ordered into causes and effects is necessary to prevent paradoxes such as the (Click link for more info and facts about grandfather paradox) grandfather paradox, which asks what happens if a time-traveller kills his own grandfather before he ever meets his grandmother.
	www.absoluteastronomy.com /encyclopedia/c/ca/causality_(physics).htm (472 words)

	Heisenberg - Quantum Mechanics, 1925-1927: Implications of Uncertainty (Site not responding. Last check: 2007-10-28)
		In the sharp formulation of the law of causality-- "if we know the present exactly, we can calculate the future"-it is not the conclusion that is wrong but the premise.
		he challenged the notion of simple causality in nature, that every determinate cause in nature is followed by the resulting effect.
		Translated into "classical physics," this had meant that the future motion of a particle could be exactly predicted, or "determined," from a knowledge of its present position and momentum and all of the forces acting upon it.
	www.aip.org /history/heisenberg/p08c.htm (599 words)

	Processes and Causality
		A general theory of causality must be able to accommodate the full range of approximations, ranging from sophisticated theories of physics to informal, often unconscious habits that enable an organism to survive and reproduce.
		Causal influences on the values of physical functions at any point p are limited by c to a region of the past with respect to p called the cone of causal influence.
		A causal structure of a set of variables V is a directed acyclic graph in which each node corresponds to a distinct element of V, and each link represents a direct functional relationship among the corresponding variables.
	www.jfsowa.com /ontology/causal.htm (15616 words)

	Causality
		Your response might be that, for one thing, the vase was broken after her collision with the table so the direction of the causal link is incontestable.
		The second law of thermodynamics is inexplicable in terms of the underlying laws of physics which, as far as we know, are reversible.
		We know that in general relativity causal effects are limited by the light cones which are part of the geometry of space-time.
	www.weburbia.com /pg/cause.htm (2181 words)

	"Cause And Effect"
		causalism may now be a permanent fixture in the mind-set of most theoretical physicists in the world.
		Furthermore, education in physics is deficient if it shields students from this fact and from the fact that modern theory is fundamentally flawed simply because it is an acausal theory.
		Moreover, the physics establishment will be remiss in its obligation to society in general if it fails to put the topic of causality versus acausality on public view.
	www.nationmakers.com /cause.htm (5232 words)

	Alternate View Column AV-57
		Nevertheless, the physics community is concerned that there may be some fundamental problem with design or execution of the SAGE experiment.
		Causality Loopholes in General Relativity - The law of causality, the principle that a cause must always precede its effects in every reference frame, is one of the most fundamental laws of physics.
		From the viewpoint of physics, that is a disaster and perhaps an indication that general relativity is in need of revision.
	www.npl.washington.edu /AV/altvw57.html (2054 words)

	FOWLER: Zubiri's Critique of Hume's Analysis of Causality
		Hume believed that science requires causality; and because science is undeniably both knowledge and empirical, he made every effort to ensure that his new explanation of causality could support the development and use of scientific knowledge.
		The implication of this is quite clear: insofar as Hume’s theory of the intelligence requires causality to be deterministic, it is erroneous, as is his theory of causality.
		But Hume’s analysis of intelligence and of causality, and the skeptical conclusions he draws from it, are all defective because he does not recognize the three stages involved in knowledge of the world, and the unique characteristics of the first, primordial apprehension of reality.
	www.zubiri.org /general/xzreview/1998/humecritique.html (4127 words)

	Is a unified theory of information feasible
		Today causality in physics represents a general, immediate, and local relation between physically measurable variables which are non-symmetrical with respect to cause and effect.
		Physical units (in particular in classical mechanics) are based on the metaphysical principle of some factor (like mass, force, energy) while the substantialism gets lost in the realm of information.
		Causality per informationem, or immanent causality, presupposes that something already exists on (or in) which the cause produces an effect, for instance the processes of life or understanding.
	www.capurro.de /trialog.htm (9128 words)

	Distinguishing Synchronicity from Parapsychological Phenomena
		Despite Jung’s reference to the "discoveries of modern physics" in the paragraph preceding this quotation, he did not understand causality in physics since the advent of quantum mechanics in the 1920’s.
		Despite their being no causal factors for an individual decay, many precise and experimentally verifiable statements can be made that certainly qualify as natural law in any reasonable use of the term.
		Causality as a statistical truth presupposes the existence of acausality, otherwise it cannot be a statistical truth" (Jung 1975, p.
	www.lightlink.com /vic/distinguishing.html (10093 words)

	Promulgation of Absurdities in Quantum Mechanics
		Of course, physics students have to study some interpretation of modern physics but most of their professors do not consider the interpretational aspect of physics important.
		Physics is the fundamental science that aims to understand all fundamental things of Nature.
		In modern physics, matter is not considered to have its own independent existence before it is detected, just as in the case of modern philosophy of Descartes and Berkeley.
	www.newtonphysics.on.ca /HEISENBERG/Chapter1.html (5470 words)

	Center for Integral Science
		The Center is a unique institution whose aim is to bring together the perspectives of philosophy, the cognitive sciences, neuroscience, the social sciences, medicine, and the physical sciences, the arts and humanities, to move toward an integrated understanding of human consciousness.
		CTNS is an international non-profit membership organization focusing on the relation between the natural sciences including physics, cosmology, evolutionary and molecular biology, as well as technology and the environment, and Christian theology and ethics.
		FMBR was established to assist in the evolution of integrated models that encompass the physical, mental and spiritual.
	www.integralscience.org (2033 words)

	UCLA 81st FACULTY RESEARCH LECTURE SERIES
		If causal information has an empirical meaning beyond regularity of succession, then that information should show up in the laws of physics.
		Such bi-lingual activity would be forgiven if causality was used merely as a convenient communication device - a shorthand for expressing complex patterns of physical relationships that would otherwise take many equations to write.
		Such distinctions are not supported by the equations of physics, and this leads us to ask whether the whole causal vocabulary is purely metaphysical.
	bayes.cs.ucla.edu /LECTURE/lec1b-1_text.htm (635 words)

	Causality (physics) (Site not responding. Last check: 2007-10-28)
		The principle of locality is essentially an attempt to reclaim the sense of time ordering lost in the process, but this concept has in turn been challenged by developments in quantum physics.
		In particular, Bell's Theorem complicates the physical notion of causality by extending the set of events which can affect a physical measurement to a practically unmeasureable universe.
		It is strongly suspected that general relativity also preserves causality and forbids agents from changing the past, although this has not been rigorously demonstrated.
	www.fact-index.com /c/ca/causality__physics_.html (333 words)

	Amazon.com: Books: Nexus: Small Worlds and the Groundbreaking Science of Networks (Site not responding. Last check: 2007-10-28)
		Buchanan illustrates social and physical networks with examples ranging from the infamous "six degrees of separation" theories, to the spread of the AIDS virus, to the mapping of the nervous system of the nematode worm.
		Buchanan points out the hidden networks that tie together both the physical world and the world of consciousness, showing that amongst other things the Internet, electrical grids, the brain and the global economy are all systems with an underlying pattern that shares nature's design.
		Physics, biology and other sciences have uncovered a multitude of unexpected connections between the operation of the human world and the functioning of other seemingly unrelated things.
	www.amazon.com /exec/obidos/tg/detail/-/0393041530?v=glance (2070 words)

	Imre Lakatos: Modern Physics, Modern Society
		Physical labour and mental labour are differentiated, they begin to fight, and in the meanwhile men sink to be partial workers: these are the characteristics of this strange distorted motion.
		In reality, therefore, we are indeed faced with a double world: the unity of the non-excluding opposites of the physical world and the familiar world which reflects the natural existence of things and, as an opposition to it, the fetish world reflecting the social existence of things.
		In the age of world-wars the development of physics does not increase man’s domination over nature any more, and thus the physical world seemingly becomes a bloodless, abstracted (from reality) empty frame in its negative sense, for which it is not worth making any Heisenbergian “sacrifice” at all.
	hps.elte.hu /~kutrovatz/LAKATOS0.html (6034 words)

	Boundary Institute - Home Page
		We are currently pursuing two major research themes, one concerning the foundations of physics, the other the foundations of mathematics and computer science.
		Specification, design, verification, and debugging should be represented as a seamless whole, rather than by a collection of language extensions and ad hoc techniques.
		Abstract: We describe here a simple experiment in psychic phenomena (Psi) where the usual target generator is replaced by a cascade of randomly controlled stages of a Markov Chain.
	www.boundary.org (400 words)

	Sharp Blue: Relativity, FTL and causality
		In any of these cases, though, some kind of "causality" still exists, though it isn't our everyday notion of causality, in which all effects are caused by causes that happened in their pasts, and our decisions can change the future unconstrained by "what is already going to happen".
		In modern physics, causality means that an effect must lie in the future light cone of its cause.
		What this says of causality is that moments A and B are related only by the context provided by your consciousness, and that to say that A caused B is an act, not of logic, but of faith.
	www.theculture.org /rich/sharpblue/archives/000089.html (5651 words)

	Causality (Site not responding. Last check: 2007-10-28)
		Your response might be that, for one thing, the vase was broken after her collision with the table so the direction of the causal link is incontestable.
		The second law of thermodynamics is inexplicable in terms of the underlying laws of physics which, as far as we know, are reversible.
		We know that in general relativity causal effects are limited by the light cones which are part of the geometry of space-time.
	adela.karlin.mff.cuni.cz /~motl/Gibbs/cause.htm (2184 words)

	Clear message for causality (December 2003) - Physics World - PhysicsWeb
		In 1995, for example, Günther Nimtz of the University of Cologne encoded Mozart's 40th Symphony on a microwave beam, which he claimed to have transmitted at a speed faster than light.
		Relativity teaches us that sending a signal faster than light would be equivalent to sending it backwards in time.
		Aephraim M Steinberg is at the Institute for Experimental Physics, University of Vienna, Austria
	physicsweb.org /article/world/16/12/3 (1562 words)

	Amazon.ca: Books: Causality & Locality in Modern Physics (Site not responding. Last check: 2007-10-28)
		The topics of the contributions range from quantum mechanics and its interpretation, to particle physics, electromagnetic theory, relativity and gravity, and the relationship between inertia and the zero-point electromagnetic oscillations that constitute the vacuum.
		The fifty-two articles are arranged under the following categories: astrophysics-cosmology, the Aharonov-Bohm effect, electrodynamics, gravitation and inertia, light and photons, mathematical physics, particle physics and quantum theory.
		Topics include those ranging from quantum mechanics & its interpretation, to particle physics, electromagnetic theory, relativity & gravity, & the relationship of inertia & zeropoint electromagnetic oscillations in a vacuum.
	www.amazon.ca /exec/obidos/ASIN/0792352270 (289 words)

	The Electric Tao: A brief history of causality
		MyJewishLearning.com has an article tracing the ways modern philosophers have dealt with the free will "problem" vis-a-vis the inescapable "mechanistic" causality of physics.
		Perhaps more importantly, modern quantum physics has revealed that what is actually happening at the sub-atomic level is not mechanistic in any traditional sense.
		Kant may have had a point, at least, in speaking on the fundamental limitations of perception and human understanding of the world.
	www.electrictao.net /archives/000302.shtml (208 words)

	Causality, Measurement and Space
		The eclipse of causality in 20th Century thought is one of the leading characteristics of this Dim Age.
		This may raise some hackles; for while quantum mechanics' disdain for causality is not the least controversial, relativity is usually regarded as a causal theory, a haven of sanity compared to quantum mechanics.
		That causal knowledge (or error) is the essence of a physical theory; wildly different physical theories can have a great many equations in common.
	www.quackgrass.com /space.html (5250 words)

	M Physics 21:- Causality & Speed of Light (c) & The Speed of Cosmic Expansion ensured that 'SR / GR' is False?
		M Physics 21:- Causality and Speed of Light (c) and The Speed of Cosmic Expansion ensured that 'SR / GR' is False?
		Or The Speed of Cosmic Expansion > FTL ensured that 'SR /GR' is False, given Causality...
		M Physics 21: SR21- The M Salvager of genuine Ostrich:- FTL in SR/GR, for the Good and survival of SR/GR, with proof -- kx21 9/05/02 (
	superstringtheory.com /forum/timeboard/messages7/68.html (276 words)

	SCIENCE : Physics : Causality (Physics) Books
		Formale Teleologie Und Kausalitat in Der Physik : Zur Philosophischen Relevanz Des Prinzips Der Kleinsten Wirkung Und Seiner Geschichte = Formal Teleology and Causality in Physics
		Causality, Electromagnetic Induction and Gravitation : A Different Approach to the Theory of Electromagnetic and Gravitational Fields
		Causality and Locality in Modern Physics : Proceedings of a Symposium in Honour of Jean-Pierre Vigier
	www.allbookstores.com /Science/Physics/Causality_(Physics).html (257 words)

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