The development of quantum physics represented a giant step forward in science, a decisive break with the old stultifying mechanical determinism of “classical” physics. (The “metaphysical” method, as Engels would have called it.) Instead, we have a much more flexible, dynamic – in a word dialectical – view of nature. Beginning with Planck’s discovery of the existence of the quantum, which at first appeared to be a tiny detail, almost an anecdote, the face of physics was transformed. Here was a new science which could explain the phenomenon of radioactive transformation and analyse in great detail the complex data of spectroscopy. It directly led to the establishment of a new science – theoretical chemistry, capable of solving previously insoluble questions. In general, a whole series of theoretical difficulties were eliminated, once the new standpoint was accepted. The new physics revealed the staggering forces locked up within the atomic nucleus. This led directly to the exploitation of nuclear energy – the path to the potential destruction of life on earth – or the vista of undreamed of and limitless abundance and social progress through the peaceful use of nuclear fusion. Einstein’s theory of relativity explains that mass and energy are equivalents. If the mass of an object is known, by multiplying it by the square of the speed of light, it becomes energy.
Einstein (1879-1955) showed that light, hitherto thought of as a wave, behaved like a particle. Light, in other words, is just another form of matter. This was proved in 1919, when it was shown that light bends under the force of gravity. Louis de Broglie later pointed out that matter, which was thought to consist of particles, partakes of the nature of waves. The division between matter and energy was abolished once and for all. Matter and energy are…the same. Here was a mighty advance for science. And from the standpoint of dialectical materialism matter and energy are the same. Engels described energy (“motion”) as “the mode of existence, the inherent attribute, of matter.”[2]
The argument that dominated particle physics for many years, whether subatomic particles like photons and electrons were particles or waves was finally resolved by quantum mechanics, which asserts that subatomic particles can and do behave both like a particle and like a wave. Like a wave, light produces interferences, yet a photon of light also bounces off all electrons, like a particle. This goes against the laws of formal logic. How can “common sense” accept that an electron can be in two places at the same time? Or even move, at incredible speeds, simultaneously, in different directions? For light to behave both as a wave and as a particle was seen as an intolerable contradiction. The attempts to explain the contradictory phenomena of the subatomic world in terms of formal logic leads to the abandonment of rational thinking all together. In his conclusion to a work dealing with the quantum revolution, Banesh Hoffmann is capable of writing:
How much more, then, shall we marvel at the wondrous powers of God who created the heaven and the earth from a primal essence of such exquisite subtlety that with it he could fashion brains and minds afire with the divine gift of clairvoyance to penetrate his mysteries. If the mind of a mere Bohr or Einstein astound us with its power, how may we begin to extol the glory of God who created them?[3]
Unfortunately, this is not an isolated example. A great part of modern literature about science, including a lot written by scientists themselves, is thoroughly impregnated with such mystical, religious or quasi-religious notions. This is a direct result of the idealist philosophy, which a great many scientists, consciously or unconsciously, have adopted.
The laws of quantum mechanics fly in the face of “common sense” (i.e., formal logic), but are in perfect consonance with dialectical materialism. Take, for example, the conception of a point. All traditional geometry is derived from a point, which subsequently becomes a line, a plane, a cube, etc. Yet close observation reveals that the point does not exist.
The point is conceived as the smallest expression of space, something that has no dimension. In reality, such a point consists of atoms – electrons, nuclei, photons, and even smaller particles. Ultimately, it disappears in a restless flux of swirling quantum waves. And there is no end to this process. No fixed “point” at all. That is the final answer to the idealists who seek to find perfect “forms” which allegedly lie “beyond” observable material reality. The only “ultimate reality” is the infinite, eternal, ever-changing material universe, which is far more wonderful in its endless variety of form and processes than the most fabulous adventures of science fiction. Instead of a fixed location – a “point” – we have a process, a never-ending flux. All attempts to impose a limit on this, in the form of a beginning or an end, will inevitably fail.
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Engels, F. Dialectics of Nature, p. 92.
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Hoffmann, B. op. cit., pp. 194-5.