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13 Jul 2005 @ 12:02, by swanny
Oh well .... its early yes but I was thinkin yesterday
about this "electromagnetic" soup we humans have created
and are livin in and wonder about how it effects us...
not that it matters or that we can really do anything about
it.... its hardly even regulated. any who I suppose its a little bit
interesting .... no?
Courtesy of the web...
Electromagnetism
Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, composed of the electric field and the magnetic field. The electric field can be produced by stationary electric charges, and gives rise to the electric force, which causes static electricity and drives the flow of electric current in electrical conductors. The magnetic field can be produced by the motion of electric charges, such as an electric current flowing along a wire, and gives rise to the magnetic force one associates with magnets. The term "electromagnetism" comes from the fact that the electric and magnetic fields are closely intertwined, and, under many circumstances, it is impossible to consider the two separately. For instance, a changing magnetic field gives rise to an electric field; this is the phenomenon of electromagnetic induction, which underlies the operation of electrical generators, induction motors, and transformers.
The term electrodynamics is sometimes used to refer to the combination of electromagnetism with mechanics. This subject deals with the effects of the electromagnetic field on the mechanical behavior of electrically charged particles.
The force that the electromagnetic field exerts on electrically charged particles, called the electromagnetic force, is one of the four fundamental forces. The other fundamental forces are the strong nuclear force (which holds atomic nuclei together), the weak nuclear force (which causes certain forms of radioactive decay), and the gravitational force. All other forces are ultimately derived from these fundamental forces. However, it turns out that the electromagnetic force is the one responsible for practically all the phenomena one encounters in daily life, with the exception of gravity. Roughly speaking, all the forces involved in interactions between atoms can be traced to the electromagnetic force acting on the electrically charged protons and electrons inside the atoms. This includes the forces we experience in "pushing" or "pulling" ordinary material objects, which come from the intermolecular forces between the individual molecules in our bodies and those in the objects. It also includes all forms of chemical phenomena, which arise from interactions between electron orbitals.
Furthermore, light is actually a kind of travelling disturbance in the electromagnetic field (i.e. electromagnetic waves.) Therefore, all optical phenomena are actually electromagnetic phenomena.
An accurate theory of electromagnetism, known as classical electromagnetism, was developed by various physicists over the course of the 19th century, culminating in the work of James Clerk Maxwell, who unified the preceding developments into a single theory and discovered the electromagnetic nature of light. In classical electromagnetism, the electromagnetic field obeys a set of equations known as Maxwell's equations, and the electromagnetic force is given by the Lorentz force law.
One of the peculiarities of classical electromagnetism is that it is difficult to reconcile with classical mechanics, but it is compatible with special relativity. According to Maxwell's equations, the speed of light is a universal constant, dependent only on the electrical permittivity and magnetic permeability of the vacuum. This violates Galilean invariance, a long-standing cornerstone of classical mechanics. One way to reconcile the two theories is to assume the existence of a luminiferous aether through which the light propagates. However, subsequent experiments efforts failed to detect the presence of the aether. In 1905, Albert Einstein solved the problem with the introduction of special relativity, which replaces classical kinematics with a new theory of kinematics that is compatible with classical electromagnetism. In this theory, magnetism turns out to be the effect that relativity has on simple electrostatics and does not need a special set of equations (like Maxwell's equations in a classical Universe).
Remarkably, in another paper published in that same year, Einstein undermined the very foundations of classical electromagnetism. His theory of the photoelectric effect posited that light could exist in discrete particle-like quantities, which later came to be known as photons. Einstein's theory of the photoelectric effect extended the insights that appeared in the solution of the ultraviolet catastrophe presented by Max Planck in 1900. In his work, Planck showed that hot objects emit electromagnetic radiation in discrete packets, which leads to a finite total energy emitted as black body radiation. Both of these results were in direct contradiction with the classical view of light as a continuous wave. Planck's and Einstein's theories were progenitors of quantum mechanics, which, when formulated in 1925, necessitated the invention of a quantum theory of electromagnetism. This theory, completed in the 1940s, is known as quantum electrodynamics (or "QED"), and is one of the most accurate theories known to physics.
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Category: Articles
6 comments
13 Jul 2005 @ 12:34 by swanny : Phi Force
Phi force
My concern is that when things are built involving electricity or electronics little if no thought is given to the overall or global electromagnetic effect of the device. The lack of this "design" consideration makes me question how this device harmonizes with and within the existing natural environment.
It could be compared to a color blind person painting a picture with colors with little regard for anything but contrast and hue.
What though in my opinion results in is a haphazard hodgepodge of devices creating a new form of pollution that we don't really need, though subtle it may be.
Practioners of Feng Shui are somewhat aware of this an caution people about putting TVs and Computers and such in sleeping areas, saying it overly disrupts the natural Chi forces.
This make me wonder if perhaps Chi might be some kind of Natural of "Phi" Electromagnetic force.
Anyway I suppose it a bit of pickin nits and I may just be over or geo sensitive.
13 Jul 2005 @ 13:47 by swanny : Qi
Oops I guess my "knowledge" is not always accurate
Chi is actually spelt "Qi" sorry...
I never was to up on spelling.
I am improving... I read the dictionary at times.
Heres a good link on "Qi Design"
Link = http://www.qidesign.ca/
13 Jul 2005 @ 14:05 by swanny : qi def
Qi is a fundamental concept of everyday Chinese culture, most often defined as "air" or "breath" (for example, the colloquial Mandarin Chinese term for "weather" is tiān qi, or the "breath of heaven") and, by extension, "life force" or "spiritual energy" that is part of everything that exists. References to qi or similar philosophical concepts as a type of metaphysical energy that sustains living beings are used in many belief systems, especially in Asia.
Philosophical conceptions of qi date from the earliest recorded times in Chinese thinking. One of the important early figures in Chinese mythology is Huang Di or the Yellow Emperor. He is often considered a culture hero who collected and formalized much of what subsequently became known as traditional Chinese medicine. Although the concept of qi has been very important within all Chinese philosophies, their descriptions of qi have been varied and conflicting.
13 Jul 2005 @ 17:13 by swanny : Electromagnetic Design
Oh I see there is some work being done
on "electromagnetic design" well good on us
Link = http://www.nottingham.ac.uk/ggiemr/...ch/examples.htm
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14 Jul 2005 @ 05:45 by : Qi
I agree that maybe Qi and Phi are somewhat related, though I still haven't found any info about it.
When you practice Tai Chi or Qi Gong you can feel the 'energy' flowing through your entire body, it's an amazing experience. Qi Gong is at the base of Tai Chi, and it helps to remove the blockages in the Qi, that may be causing physical or mental illness. Some theories say that this Qi could be a bioelectric (or bioenergetic) current in our body. Acupuncture has been said also to be related with this bioelectric current, generated by cellular function. I read somewhere that a research in China shows that the acupuncture points have strong concentrations of ions, supporting this theory. And that makes sense, as in our body everyday it takes place millions of chemistry reactions that could originate this bioelectric current. It's a very interesting topic. But of course when I practice Tai Chi or Qi Gong I forget about chemistry reactions in the body, and just concentrate in feeling the energy flowing freely.
I've read also some books of Feng Shui. As Qi Gong helps the energy (Qi) to flow inside our body, Feng Shui helps it to flow through our house or our environment.
(Ed, the last link doesn't work.)
14 Jul 2005 @ 09:27 by swanny : oops
It was just some animations showing the electromagnetic flow
of current in differenct settings and arrangements.
In DC or direct current it seemed that the electromagnetic
fields flowed and acted much the same as water even
with a field getting trapped inside things. Not sure
why the link isn't working except perhaps that it was a
site intended for "commercial users".
I don't know if AC or alternating current would work the same
way. Thanks though for your understanding of Qi..... its all
quite related and somewhat interconnected.
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