Dark matter is NOT the same as anti-matter, but is it possible that dark matter may be perhaps the correlate of anti-matter [or matter] for other [unseen, undetectable with current instruments] universes that co-exist in the same space with ours? And perhaps dark energy is simply the effects of the "gravity" of those unseen [undetectable] universes, the manifestations of which have been suggested only mathematically, but not physically detected?
The visible universe—including Earth, the sun, other stars, and galaxies—is made of protons, neutrons, and electrons bundled together into atoms. Perhaps one of the most surprising discoveries of the 20th century was that this ordinary, or baryonic, matter makes up less than 5 percent of the mass of the universe.
The rest of the universe appears to be made of a mysterious, invisible substance called dark matter (25 percent) and a force that repels gravity known as dark energy (70 percent).
http://science.nationalgeographic.com/science/space/dark-matter/
The visible universe—including Earth, the sun, other stars, and galaxies—is made of protons, neutrons, and electrons bundled together into atoms. Perhaps one of the most surprising discoveries of the 20th century was that this ordinary, or baryonic, matter makes up less than 5 percent of the mass of the universe.
The rest of the universe appears to be made of a mysterious, invisible substance called dark matter (25 percent) and a force that repels gravity known as dark energy (70 percent).
http://science.nationalgeographic.com/science/space/dark-matter/
"Dark energy", "undetectable"...it sounds to me similar to Tesla's ether theory.
http://www.newdawnmagazine.com/articles/tesla-vs-einstein-the-ether-the-birth-of-the-new-physics
Philadelphia, PA
Dear all,
There is an excellent lecture on-line devoted to the topic of dark matter, which I would recommend to anyone seriously interested in the present question:
https://www.youtube.com/watch?v=ERbXT8eFuB8
The lecture was given by Carolin Crawford, an astronomer, and she is a very talented speaker--who has a good number of other lectures available on related topics. Though this lecture on "dark matter" is about an hour long, it is well worth viewing. It is suited to a general audience but doesn't skimp on the physics needed to understand the hypothesis.
She provides detailed discussion of the historical background of the hypothesis and the character of the evidence supporting it; and she distinguishes the question of dark matter from that regarding dark energy--which is a rather different hypothesis.
Have a look.
H.G. Callaway
Dear Colleagues,
Good Day,
Here is a very interesting Youtube, entitled "What is Dark Matter and Dark Energy?",
Hope, it will show you "What is dark matter and dark energy" easily.
https://www.youtube.com/watch?v=QAa2O_8wBUQ
Dear Colleagues,
Good Day,
Here are some very nice and interesting articles related to the thread, hope that you find it very useful.....
http://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy/
http://curious.astro.cornell.edu/about-us/108-the-universe/cosmology-and-the-big-bang/dark-matter/658-what-s-the-difference-between-dark-matter-and-dark-energy-intermediate
http://www.scientificamerican.com/article/what-are-dark-matter-and/
https://www.quora.com/What-is-the-difference-between-dark-matter-dark-energy-and-antimatter
http://www.dummies.com/how-to/content/the-universes-dark-matter-and-dark-energy.html
https://en.wikipedia.org/wiki/Dark_matter
I cannot help thinking Tesla's ether is the same as dark energy...I mean, if I say this to a fellow he would see me like a fool but if I show Morgan Freeman on TV talking about dark energy with nice computer simulations, everybody believes him!
To me is quite the same.
Anyway, what should a human being believe these days? Science or Religion? both of them are asking us to have "faith". Science tells me about a BigBang when there was nothing before but an instant after everything existed...come on! Also dark energy and dark matter is about the same. We need to trust it.
Strange days have found us...
Dear @ Miguel Angel Callejas,
Thank you for your insightful comments; your idea about equating Tesla's ether with dark energy does not sound very crazy to me. Tesla was a true genius and, perhaps, we would do well to examine more closely all his theories.
You are so right when you mention that the amount of faith required to believe the BigBang creation may exceed that required to believe any of the other numerous creation myths that exist in a hundred different religions and cultures around the world.
I am not a man-of-faith (at least, I have never been able to muster very much of it), but a man-of-science ... a scientist from a very young age ... and in my mind, science is about "knowing" and less about "believing." I think "believing" should more properly belong (and remain more restricted) to the realms of religion and theology (and for the truly foolish ... politics).
Best regards,
Bob
No dark matter exists!
Please, accept the PFO-CFO Theory from Beginning, including formation of stars and Sun and the future of the Solar System. The publications are available in my and Elena Kadyshevich pages at the ResearchGate site. Some detailing are available in my answers to Elena Kadyshevich questions about the positive and negative features of Einstein's GR and in different RG discussions. Dark matter is the necessary effect of the hypothetical big bang but no dark matter was found for 70 years and no big bang existed and no dark matter exists in Nature. Everything was much simpler. The PFO-CFO Theory was developed in the last decade and was repeatedly published and presented at a number of international cosmological conferences. It is alternative to the big bang hypothesis and is based on the Einstein's Special Relativity and develops it but it rejects the Einstein's General Relativity because the last assumes that the gravitational potential and the light speed is constant over Space. Please, read our works performed in this direction if this problem in its wide scale is of interest for you.
Dear Victor,
I have studied your PFO-CFO theory, as presented in your publications that you kindly make available. I must admit that I do not possess sufficient skill in either mathematics or physics to make the necessary calculations to develop an opinion on the likelihood of your theory being right-or-wrong [especially as to the ("how to" and) need for amending Einstein's formula e=mc2]. However, I do find your conceptualization of our cosmology, i.e., mass/energy as the "nothing" [potential] that comprises [what most assume is simply "empty" ... not only of "objects" ... but also of "potential"] space, most interesting ... and does not offend the limited logical capabilities of my brain. Rather it seems to have a very pleasing logical texture, as "smooth" and pleasing to the mind as the touch of silk is to the hand. And your concept of "objects" within space [stars as "knots" resulting from resonances of this "potential"] coming-into-existence as focal-points ["knots"] of this undetectable "potential" seems brilliantly-and-obviously logical .. one might even say "logically elegant " So, I thank you for doing the favor of pointing-out your theories.
My respects,
Bob
Dear Colleagues,
Good Day,
"Dark Energy vs. Dark Matter
While dark energy repels, dark matter attracts. And dark matter’s influence shows up even in individual galaxies, while dark energy acts only on the scale of the entire universe.
Our universe may contain 100 billion galaxies, each with billions of stars, great clouds of gas and dust, and perhaps scads of planets and moons and other little bits of cosmic flotsam. The stars produce an abundance of energy, from radio waves to X-rays, which streak across the universe at the speed of light.
Yet everything that we can see is like the tip of the cosmic iceberg — it accounts for only about four percent of the total mass and energy in the universe.
About one-quarter of the universe consists of dark matter, which releases no detectable energy, but which exerts a gravitational pull on all the visible matter in the universe.
Because of the names, it’s easy to confuse dark matter and dark energy. And while they may be related, their effects are quite different. In brief, dark matter attracts, dark energy repels. While dark matter pulls matter inward, dark energy pushes it outward. Also, while dark energy shows itself only on the largest cosmic scale, dark matter exerts its influence on individual galaxies as well as the universe at large."....
Please, see the rest of the article for more detail...
http://hetdex.org/dark_energy/dark_matter.php
Dear Bob,
I thank you for finding a time to read attentively our issues and to express your benevolent opinion about them. I think that just logic is a necessary component allowing for approach to understanding the natural phenomena, and I find that your pattern of thought is close to such an understanding of the process of scientific perception of the natural phenomena. Nature is simple, it doesn’t luxuriate in excesses, and its movements are logically conditioned. Mathematics should be in logic’s service instead of the other way round. Big Bang, dark matter, dark energy, and black holes are out of logic and represent no more than mathematic images. They are born by a nicest mathematical solution. But I think that the solved mathematical problem had physically-incorrect entry conditions. Einstein took that Space is homogeneous in its gravitation potential and in the light speed in it. It appears to me that this statement was mistaken, and just it led to the subsequent anti-logical fancies. I think that Universe is really much simpler than it follows from Einstein’s tensor equation.
Regards,
Victor
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