A proof is given that there does not exist an event, that is not already in the past for some possible distant observer at the (our) moment that the latter is "now" for us. Such event is as "legally" past for that distant observer as is the moment five minutes ago on the sun for us (irrespective of the circumstance that the light of the sun cannot reach us in a period of five minutes). Only an extreme positivism: "that which (...) cannot yet be observed does not yet exist", can possibly withstand the conclusion concerned. Therefore, there is determinism, also in micro-physics. (shrink)

Quantum theory predicts that, e.g., in a Stern-Gerlach experiment with electrons the measured spin component $S_Z = \pm \frac{1}{2}$ does not come about by an adjustment at the last moment, a forced “flipping” or “tilting” of the spin (vector), which would imply z-angular momentum exchange between particle and instrument, but will afterward appear to have had the value $\frac{1}{2} or - \frac{1}{2}$ already before the measurement. Because an electron spin cannot have components $ \pm \frac{1}{2}$ in all directions at the (...) same time, the measuring direction has a “privileged” status before the measurement, however we choose that direction, which implies a retroactive effect. A second proof of retroactivity is derived from a special case of the paradox of Einstein, Podolsky, and Rosen. It is strongly suggested by our result that, in essential respects, both Bohr and Einstein were right in their famous controversy about determinism and considering microprocesses “as a whole.”. (shrink)

We abandon as redundant the assumption that there exists something more in the physical world than action quanta, which constitute the atoms of the events of which the four-dimensional world consists. We derive metric, energy, matter, etc., from action and the structure formed by the quanta. In the microworld thequantization of space so introduced implies deviations from conventional metrics that make it possible in particular to explain nonlocality. The uncertainty relations, then, in conjunction with the action-based metric, appear to play (...) an essential role in making direct physical contact between emission and absorption events (i.e., retroactivity) possible, which concretely answers Bohr's conjecture that microprocesses constitute “wholes.” All of this appears to afford a realistic explanation of wave-particle “duality,” the EPR and other quantum paradoxes, the hidden variable problem, the “collapse” of wave packets, and the wave interference mechanism with the ¦ ϕ ¦2 rule. (shrink)

Examining the process of action at a distance, we arrive at the following conclusions: (a) The virtual photons and mesons transmitting Coulomb and nuclear forces, respectively, do not arise from “temporary violations of energy conservation,” but, on the contrary, exactly embody the potential energy corresponding to the relevant forceF that they transmit on their collision with the charged particles or nucleons via the formula Δp=FΔt. (b) In the case of an attractive force, the energy of these photons and mesons is (...) negative. The way this comes about is made clear by a more detailed investigation of Feynman's notion of “traveling backward in time.” (c) The action corresponding to, e.g., a virtual photon's appearance is exactly one quantumh, which fact is responsible for the unobservability of such photons. Some consequences of the revised conception of potential energy for, e.g., the tunnel and the Bohm-Aharonov effect are mentioned. (shrink)

We consider several thought and practical experiments, and variations thereof, from which the existence can be inferred of retroactive effects on the assumptions of conservation of linear and angular momentum and of realism defined in a wide sense. Such conclusion is made less counterintuitive by research into the proper physical background of the relativistic length contraction of a moving arrow, viz. the fact that the universe is four-dimensional indeed. In one of the experiments considered, the evidence of retroactivity is more (...) striking and can more easily be actually demonstrated than was the case in earlier proofs. (shrink)

A modified Young double-slit experiment proposed by Wootters and Zurek is considered in which a system P of parallel plates covered with a photographic emulsion has been set up in the region where we would normally expect the central interference fringes. Because under certain conditions P makes it possible to conclude with much more than50% certainty through which of the two slits each particular photon passed, the relevant interference pattern becomes blurred. It is proved that this implies a retroactive effect (...) because the setup of P and the interaction of photons with P appear to influence the momentum transferred to the photons by the edges of the slits at an earlier stage of the experiment. (shrink)

First it is proved that, in a deterministic theory, Malus' law requires that, if a photon is successively transmitted by two polarizers with appropriately chosen settings, the first transmission influences a hidden variable (co-) determining the second one. We derive from this that in an ideal EPR experiment (giving the result predicted by quantum mechanics for two correlated photons transmitted by two polarizers with suitably chosen settings) there has to be a nonlocal influence from the “first” transmission interaction to the (...) second. Subsequently we argue that we can abandon determinism as an assumption so that the locality hypothesis is in any case untenable if the predictions of quantum mechanics are all correct. (shrink)

C W Evers, J C Walker; Knowledge, Partitioned Sets and Extensionality: a refutation of the forms of knowledge thesis, Journal of Philosophy of Education, Volume.

Originally published in 1913, this text was written in anticipation of the King's Speech for that year, which was due to include a Bill for the development of a National System of Education. The text puts forward the view that 'unless the Bill succeeds in making the most of the movement for reform springing from the schools themselves, it can but grant opportunities which will be incompletely utilised'. This book will be of value to anyone with an interest in the (...) history of education and educational reform. (shrink)

This supplement to Prudentia 2003 contains a series of papers written by previous students and colleagues of professor Chris Dearden, former professor of classics at Victoria university of Wellington.

As a drama and a poem theEumenidesis often regarded with unease. It brings theOresteiato a conclusion; but its account of Athens and the Areopagus seems to many readers inspired more by patriotism than a sense of dramatic unity. Hence much attention has been devoted to Aeschylus' supposed political message in the play; as a result, the question of its fitness to crown the trilogy recedes into the background or even vanishes. On the other hand, those whose concern is with Aeschylus' (...) poetry tend to ignore his ‘politics’. The purpose of this paper is twofold. First, it seeks to vindicate Aeschylus the artist: to show, that is, how the founding of the homicide court and the cult of the Semnai on the Areopagus in Athens properly marks the end of the troubles of the Argive Atridae, and how the sufferings and guilt of individual men and women are resolved in a city's institutions. In pursuing this aim, it also has to consider, and try to define, the relation of the tragedian to his audience and to contemporary society. My concern, then, is with the individual and the community, both within the play and behind it. (shrink)

After consulting the commentaries and the fine remarks of ‘Longinus’ on this passage, a reader may still reasonably feel dissatisfied. Lines 1405–7 are normally taken to mean ‘you have shown fathers, brothers, sons and brides, wives, mothers to be kindred blood’; for the position of Schneidewin-Nauck compare Od. 4.229–30.

C W Evers, J C Walker; Pyrotechnics Defended: a reply to Jim Mackenzie, Journal of Philosophy of Education, Volume 21, Issue 1, 30 May 2006, Pages 139–142, http.

In a previous article I discussed some textual and metrical issues in the lyric-iambic stanzas Supplices 71–8/79–86, and the problematic persona and constitution of the Chorus. The preceding maternal κεсα in four ionic stanzas presents fewer textual problems; but here too there is a challenging crux, at 45 in the first strophe; and there is more to be said about the ode's metrical structure. I begin with a metrical reappraisal, which will prove to have a bearing on the textual problem. (...) Unless otherwise stated, the text given is identical with those of both Diggle and Collard, except in lineation. (shrink)

The familiar crux in line 139, as obelized by Dawe, disappears in the new Oxford Text, whose editors accept the Triclinian reading . Their short critical note touches only on the metrical issue, citing discussions by Stinton and Diggle, in both of which acceptance of here is cautiously linked with recognition of the same responsion at Philoctetes 209/218 and Euripides, Medea 159/183. The note concludes with a reference to p. 75 of an article by K. Itsumi.

The familiar crux in line 139, as obelized by Dawe, disappears in the new Oxford Text, whose editors accept the Triclinian reading. Their short critical note touches only on the metrical issue, citing discussions by Stinton and Diggle, in both of which acceptance of here is cautiously linked with recognition of the same responsion at Philoctetes 209/218 and Euripides, Medea 159/183. The note concludes with a reference to p. 75 of an article by K. Itsumi.