How to show that the universe is static( not expanding)

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Homework Help Overview

The discussion revolves around the concept of a static universe versus an expanding universe, specifically in the context of dark energy and cosmological constants. The original poster seeks to demonstrate a static universe for a project, referencing historical ideas from Einstein.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • The original poster attempts to equate the formulas for matter density and dark energy to argue for a static universe. Some participants question the validity of this approach, while others clarify that the universe is generally understood to be expanding.

Discussion Status

The discussion includes differing viewpoints on the nature of the universe, with some participants suggesting that the original poster's approach may not be viable. There is acknowledgment of the historical context of a static universe, but no consensus has been reached on the proposed method.

Contextual Notes

The original poster mentions that the project requires creating a homework problem related to dark energy, which may influence the framing of their question and assumptions about the universe's state.

cpamieta
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Homework Statement


how can i show the universe is static and not expanding, how it really is.


Homework Equations


[tex]\Omega[/tex]M=...
[tex]\Omega[/tex][tex]\Lambda[/tex]=...



The Attempt at a Solution



"The expansion history of the universe depends on the amount of matter (gravity), quantified
by [tex]\Omega[/tex]M
M, and dark energy (anti-gravity), given by" [tex]\Omega[/tex][tex]\Lambda[/tex]
So would setting these two formulas = to each other and solving for the cosmological constant, that would give me a static universe right? I am like 90% sure its right but want some conformation.
thanks
 
Physics news on Phys.org
It's not static, it's expanding.
 
i know its expanding lol just think of this as different universe that's static. We have a project and one part of it is to create like a homework problem. it has to be on dark energy, so i figured my problem would be using that formula and showing the universe is static, like what Einstein thought
 
nvm what i was thinking would not work
 

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