Unravelling the Mystery of Hubble Time and Galactic Plasma

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SUMMARY

The discussion centers on the concept of Hubble time, specifically the equation t(u) = 1/H x 10^12 years, and its implications regarding the age of the universe and the nature of time. Participants explore the paradox of an accelerating universe and the potential for time to behave in a non-linear fashion. The conversation also touches on Hannes Alfven's Plasma cosmology and its parallels to electromagnetic fields, suggesting a connection between galactic plasma dynamics and cosmic expansion. A strong emphasis is placed on the necessity of advanced mathematical understanding, particularly in calculus and differential geometry, to engage with these complex theories.

PREREQUISITES
  • Understanding of Hubble's Law and Hubble time
  • Familiarity with calculus, specifically derivatives and integrals
  • Basic knowledge of differential geometry
  • Awareness of plasma cosmology and electromagnetic fields
NEXT STEPS
  • Study the implications of Hubble's Law on cosmic expansion
  • Learn advanced calculus techniques, focusing on integrals and derivatives
  • Research differential geometry and its applications in cosmology
  • Explore Hannes Alfven's theories on plasma cosmology and their relevance to modern astrophysics
USEFUL FOR

Astronomy students, astrophysicists, and anyone interested in the mathematical foundations of cosmological theories and the dynamics of the universe.

shintashi
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I was staring at my calculus book when this came to me, so apologies if its a little murky.

I've been thinking about Hubble time and noticing something odd, that my astronomy professor really couldn't (or wouldn't) answer.

t(u)= 1/H x 10e12 years

which didn't quite work because if the observations of the expansion of the universe indicated acceleration, then the age of the universe would be going down, not up, and eventually the timeline of humanity would exceed the age of the universe (which among other things would be really weird). When I thought About it some more, this only seemed to make sense if time were moving backwards. Instead of cause -> effect, it would be effect -> cause, while our perceptions would be mnemonic. As crazy as this sounds, it made sense, at least on paper. Then I thought some more on the subject a year later (the present), and concluded there was a problem. While the universe may be expanding and accelerating so, in reverse it would be contracting and decelerating. This seemed to work, until I thought about the big bang, and then realized that such a "bang" would have enormous rates of acceleration.

This led me to believe there may be a pattern to the motion of time in relation to space, and the first thing I thought of that resembled it was the motion of galactic material into and out of a blazar or other galactic black hole.

I was then reminded of Hannes Alfven's Plasma cosmology, and the theories of galactic plasma EM fields paralleling the Earth's magnetosphere. If the lines of electromagnetism are compared with a toroid, with velocities going toward the axis accelerating, and lines exiting the axis decelerating, then it works.

For a quick reminder, here's a random image.
http://universe-review.ca/I15-53-electromagnetism.jpg
or go here:
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm
 
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And you just said that you didn't understand functions very well?!
 
neutrino said:
And you just said that you didn't understand functions very well?!

is that a real question or sarcasm? I was never trained formally in mathematics beyond the algebra level, and learned what was necessary for my science classes. My calculus book is called "Calculus". its the 3rd edition of Stewart from 1995 and was a gift from long ago. I just started reading integrals today, while also reading a biographical excerpt on the side of some guy with a photgraphic memory named Gauss. I took physics and chemistry at the high school level 14-15 years ago, and took physics and astronomy at the college level recently. Engineering physics is different though, much more "rigorous" and requires a heavy amount of calculus - much more than working with a matrix or using the square route of -1.

mainly I would like to have the math skills to describe theories that come to mind based on observation and analysis. As Eric T Bell says
"the very essence of analysis is the correct use of infinite processes"
 
I am sorry if my comment offended you, but I'm just amazed. The terms velocity, acceleration, etc. have precise meanings in physics, and more so in cosmology. Someone would need at least a rudimentary understanding of differential geometry, which is quite a way from derivatives and integrals, to properly describe theories on black holes and the universe. So it was just surprising to see this post from you, who, just a few hours ago, was asking what an integral was. :)
 
Shintashi, go and learn derivatives and integrals first, then learn their application in classical Newtonian mechanics, then think about your question again! Do it in that order! Until then, I do not see a point in discussing your question. In fact, I do not see a point in your question at all.
 
Demystifier said:
Shintashi, go and learn derivatives and integrals first, then learn their application in classical Newtonian mechanics, then think about your question again! Do it in that order! Until then, I do not see a point in discussing your question. In fact, I do not see a point in your question at all.

the solution to the Olber Paradox was proposed by Edgar Allen Poe, not a mathematician.
 

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