Recent content by vagor

Couple considerations that may have been missing here: - How old is Trappist-1 system? Being Red dwarf, it may have formed during the early epoch of the universe. In this case its metallicity may be too low to form all elements needed for life. However, it does have planetary system suggesting...

This may be correct mathematically, but it is certainly not the case from physics point of view. Particularly: - Physical body may not have a uniform density. Than center of mass will mot coincide with geometrical center of the body, - A subset (or superset, depending how you look at it) of the...

This discussion appears to show the value of Gödel's incompleteness theorem :) ;)

Supermassive black hole found at the center of mass of each galaxy. As the matter of fact, you can actually see the axis of rotation as two (northern and southern) energetic jects shooting out from rotating black hole...

If you consider grenade explosion as not an instantaneous event, but is rather stretched in time, say for 14 B years or longer, then we are still within that explosion. Explosive substance that fills the grenade is still burning when its particles are already far away from point of singularity...

Yes, but in those early days they didn't know that electrons and nuclei are not classical solids. They also didn't think much about being linguistically proper. They simply saw spectral lines, new that electrons rotate around nucleus and new that electrons have charge. So, to explain what...

Spin of an elementary particle is a quantum number. This name was given to explain the observed behavior during spectrographic experiments in early 20-th century. In reality, all elementary particles are wave functions that manifest differently when interacting with physical environments...

Yes, I see your point. However: 1. That analogy was applied to cosmic era when forces of nature as we know them today did not exist. I don't think we can speculate at which point and distance gravity became prevalent 2. Without experiencing resistance and friction the particles (we can't even...

Btw, I very much like your motto - "There never was a good war, or a bad peace "

Yes, sorry for throwing the wrong word again. It is funny how brain works .. it is very difficult to root out an image that was already associated with a linguistic element

Thank you Catastrope, I love philosophy and would very much like to get engaged into philosophical discussion. It just appeared that that was not the best way to address the specific question. Thanks again, V

Clusters of galaxies form tubes while revolving around a common axis :) :)

Agreed! :):)

Catastrophe, As you correctly guessed, English is not my native language, it is Russian instead. My background is in physics and control systems with some involvement in neurophysiology. Let's stick to your definitions of rotation and spin as posted in #13 with one clarification: It looks...

My original post was structured around the origin of spin/rotation that was apparently introduced shortly after the Big Bang event. However, I was more interested in finding an explanation of dark matter. The latter was hidden as second layer in original query. I was not planning to get into...