Principle of visibility and the principle of visualization...

The principle of visualization and the principle of visualization

In the history of chemistry, especially quantum, there are no collisions connected with the desire to present chemical processes in visual form: all the studied realities should be given in a form accessible to the senses. As far as the author knows, the principle of visibility has not been clearly formulated by any of the philosophers.

The lessons of quantum physics and chemistry show that the possibility of representing all the concepts of quantum mechanics in visual form has not yet been proved. But, apparently, it's too early to write off the principle of visibility into the archive. This is especially important for specialists in the field of chemistry. But, perhaps, there is no doubt that "naive" understanding the principle of clarity is incompatible with quantum chemistry. It is unacceptable to imagine, for example, electrons in the form of corpuscles, waves or their train.

A scientist should always be guided by the position that the vitality of a visual image is determined by its conceptual content.

Strictly speaking, the researcher should strive not for visualization, but for visualization. This is a stage in scientific research, the refusal of which substantially impoverishes it and, in the final analysis, distorts it. The principle of clarity in the form in which it is described in the existing literature does not take into account the content of conceptual transduction. A completely different situation develops around the principle of visualization. He is able to direct the research along the right path, namely, to contribute to the purposeful development of not merely simple, visually perceived conceptually saturated images. It can be stated that the development of modern science has led from the principle of visibility to the principle of visualization.

The principle of observability

It was formulated by one of the founders of quantum physics W. Heisenberg in the following form: "It is reasonable to include in the theory only quantities that can be monitored". Einstein objected to Heisenberg in a rather abrupt form: "From a principled point of view, the desire to build a theory only on observable magnitudes is completely absurd. Because in reality everything is just the opposite. Only the theory decides what it is that can be observed. "

From a philosophical point of view, the dispute between two geniuses of science is very revealing. Einstein more specifically than Heisenberg, stressed the conceptual status of the theory. But his opponent, obviously, was acquainted with him by no means hearsay. Why did an acute situation arise in the conversation between two outstanding scientists? Why did Einstein's remark very much surprise Heisenberg? Because they differently ranked the principles of scientific theory. The background of their dispute was quantum mechanics. Einstein put the principle of observability in place, following for the basic principles of the theory. Heisenberg believed that the theory begins precisely with the principle of observability. Reconstructing their possible position relative to the quantum theory, we can say that for Einstein it begins with the postulate of the wave function, and for Heisenberg with the principle of observability.

Scientists argue

Einstein's position seems more weighted. She does not deny the principle of observability, but suggests it's "cautious" formulation. For example, this: "The content of concepts of theories must certainly appear in the results of observations."

Of course, we are talking about such sciences, in which an observation operation takes place. Chemistry is just such a science. In the field of quantum chemistry, the question of the consistency of the principle of observability becomes particularly acute. Indeed, it is widely believed that the phenomenon of the wave function falls out of the field of action of the principle of observability. The point is that this function does not represent a real wave process, which is accessible to observation. Before the advent of quantum mechanics, physicists and chemists did not meet with processes that were in principle unobservable. When it happened, there was a problem situation, the overcoming of which is delayed.

According to the author, the essence of the situation described is as follows. The so-called pure states in principle do not lend themselves to the process of observation. The measurement destroys the pure states, indicating mixed states. Does this mean that we must abandon the recognition of the reality of pure states? No, it does not mean. The theory makes it possible to go from the results of measurements relating to mixed states to pure states. Between these two types of states there is a definite dependence, it is this that allows us to judge not only mixed but also pure states from the measurements. But in this case, one should not forget about the specific nature of these states for a second.

Consider in this connection, for example, the nature of the distance between atoms in the molecule. It has two meanings. In one case, this distance is a parameter of the observed phenomenon, in the other - an unobservable, pure state. It is always necessary to distinguish between what is observed and, in principle, can not be observed. As a rule, in the books on physical chemistry we are talking about the distance between atoms (the length of chemical bonds) as a parameter of a mixed state. And it is identified with the corresponding parameter of the pure state. Molecules with their inherent geometric shapes can be observed. But this is a mixed state. Molecules and atoms in their pure state, no one has observed and, judging by the current state of quantum chemistry, will never see.

So, the principle of observability is relevant for the interpretation of quantum chemistry, but only if it is interpreted in the light of the postulate of the wave function.

thematic pictures

Also We Can Offer!

Other services that we offer

If you don’t see the necessary subject, paper type, or topic in our list of available services and examples, don’t worry! We have a number of other academic disciplines to suit the needs of anyone who visits this website looking for help.

How to ...

We made your life easier with putting together a big number of articles and guidelines on how to plan and write different types of assignments (Essay, Research Paper, Dissertation etc)