More thoughts on light

MORE THOUGHTS ON LIGHT

Ozodi Osuji

     I woke up at 4AM today and my mind was preoccupied with light. I was struck by how everything in the universe is made of light and is light in disguised form (I wrote about it in the morning).

     From a purely philosophical appreciation of light, my mind drifted to the light that we all studied at schools, the behavior of light in reflection, refraction, umbra, penumbra, and vibrations of light. I liked physics, classical and new.

     (Here is a quiz for you; I sit here in front of my window typing this stuff. I momentarily looked outside the window and saw a tree, a person, and a thing. Is that tree/person/thing the way it was when I saw it? No. I saw the tree/person/thing as it was in the past. Light hit it, reflected a picture of it to my eyes and my eyes sent the information to my brain where it is interpreted as a tree/person/thing and tells my eyes that I saw a tree/person/thing; by the time I say that I saw a tree/person/thing I am talking about the tree/person/thing as it was in the past, albeit seconds in the past…light travels at 186, 282 miles per second; some of the things we think that we see in the present are long gone out of existence. Light from distant stars shows us those stars but those stars may have long exploded in supernova and are no longer in existence. We only see the past, not the present; the present can be known but not seen!)

      Classical physics is the study of mechanics, heat, light, sound, electricity, and chemistry (chemistry is really a part of physics).

     New physics is the study of Quantum mechanics and Albert Einstein’s Special and General relativity.

     So, my mind drifted to schoolchild physics of light and, naturally, I began thinking about Michael Faraday and James Clerk Maxwell and his four equations that unified electricity and magnetism and J.J. Thomson (the man, who in 1897, discovered the electron); and quantum physicists like Werner Heisenberg who elucidated how electrons behave inside the atom; they are arranged in shells and jump from one shell level to another and in doing so elicit light; they are also the means of combining elements to form molecules.

     These days we associate electricity with magnetism because both seem to be the same phenomenon. Thus, we say electromagnetism (electrical fields have magnetic fields and magnetic fields have electrical fields, both attract each other).

     Consider the atom. Inside the atom are electrons and nuclei. Electrons have negative charges. They are attracted to nuclei inside atoms (nuclei acting as magnets); nuclei, specifically, protons, have positive charge. Thus, in the atom is electromagnetism phenomenon; electromagnetic force is everywhere in the universe attracting and holding things together.

      Electromagnetism is one of the four forces of nature (the strong nuclear force that binds protons and neutrons inside the nuclei, the weak nuclear force that breaks the nuclei, gravitation force and electromagnetism force).

      So, what makes nuclei pull electrons (electrons are packets of light) to them? And does so in a manner that the number of electrons pulled towards the nuclei, in each element, is as the same number of protons inside the nuclei (one electron and one proton is hydrogen; two electrons and two protons is helium, six electrons and six protons is carbon; eight electrons and eight protons is oxygen and so on).

     What is it in nature that operates this precisely? Is it all accidental? If nature did not work with this mathematical precision the physical universe would not exist. So, what is in nature that makes it work in a mathematically precise manner?

    Universal intelligence, aka spirit probably is at work in nature; however, I do not know that this is the case; I do wonder why nature is so mathematical and predictable in its operations, although, in human terms, it is meaningless.

Ozodi Osuji

October 21, 2022

Electromagnetism

From Wikipedia, the free encyclopedia

Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force is carried by electromagnetic fields composed of electric fields and magnetic fields, and it is responsible for electromagnetic radiation such as light. It is one of the four fundamental interactions (commonly called forces) in nature, together with the strong interaction, the weak interaction, and gravitation.[1] At high energy, the weak force and electromagnetic force are unified as a single electroweak force.

Electromagnetic phenomena are defined in terms of the electromagnetic force, sometimes called the Lorentz force, which includes both electricity and magnetism as different manifestations of the same phenomenon. The electromagnetic force plays a major role in determining the internal properties of most objects encountered in daily life. The electromagnetic attraction between atomic nuclei and their orbital electrons holds atoms together. Electromagnetic forces are responsible for the chemical bonds between atoms which create molecules, and intermolecular forces. The electromagnetic force governs all chemical processes, which arise from interactions between the electrons of neighboring atoms. Electromagnetism is very widely used in modern technology, and electromagnetic theory is the basis of electric power engineering and electronics including digital technology.

There are numerous mathematical descriptions of the electromagnetic field. Most prominently, Maxwell’s equations describe how electric and magnetic fields are generated and altered by each other and by charges and currents.[2]

The theoretical implications of electromagnetism, particularly the establishment of the speed of light based on properties of the “medium” of propagation (permeability and permittivity), led to the development of special relativity by Albert Einstein in 1905.

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