- #1
Karoly
- 11
- 0
Alright, my first post here, and I feel like a questionmark if it is justifiable to post this here, but I'll give it a shot.
Recently I've pondered on some stuff regarding the expansion of the universe. Since I'm only in grade 12, attending the International Baccalaurate programme, I cannot state that I have Real knowledge about anything, which makes my questions probably rediculous, but what do I know?
Here is the deal, We have learned that the universe is thought to be expanding, and as the universe expands the entropy increases and the temperature decreases, and so does the density and so on. What I have thought of, firsly is that the universe didn't start by expanding with the speed of light since, as the Big Bang started, and eventually as photons were released, they got different displacements and thus some were further away than others. This means that the expansion is uneven. Also, as the uneven expansion is due to maybe photons colliding or something like that. Then as the the universe expands, the expansion after a while should not expand uniformly, cause after a while the photon's angle from its original position decreases, and there are parts that do should be left untouched by the photons, hence uneven expansion.
So far the model of the universe as I have been taught is that, that the universe is trying to reach equilibrium. A problem now is, let's assume that the universe is now expanding with the speed of light, which means that the photons explore with the speed of light. As these photons are namely light, they should have that speed, and as light does not have a mass, it can have infinite energy? - that is, go on forever?
Let's assume it can, if it does, then the following thing would happen: The mass in the universe is moving with a speed of (c-k), as it has a mass and is not able to move with the speed of light. The first question that arise here for me is, why would it even want to create an equilibrium? I mean, the mass of the universe does not behave like a liquid in a container, or does it? And even if it did, eventually it would not be able to fill the bottom of the container, so that there would be empty space between the photons that keep on expanding and the mass that is left behind.
Also, if we assume that it is trying to reach an equilibrium, and that it is affected by a force or a motion in the direction of the expansions, then another problem would arise, namely, light is able to keep on traveling, but the mass's velocoty would decrease all the time. As the mass has the velocity of (c-k) this value of k is likely to increase since it attracts more and the more mass it is, the less will the velocity become, so wouldn't the mass eventually come to rest? That is, wouldn't the universe stop reaching for equilibrium?
Then in all this mess, what would then really happen to the pressure, density, temperature and entropy of the universe?
*sigh* This must be pretty rediculous to hear, and I'm sorry if it is, but I just wanted some clarity for my ponderings. And, no, we have not studied Einsteins relativity theories, but I have a feeling that he is likely to pop up in explaining this, but feel free to use all things available, cause I'm willing to learn :)
Thank you for your time,
Károly
Recently I've pondered on some stuff regarding the expansion of the universe. Since I'm only in grade 12, attending the International Baccalaurate programme, I cannot state that I have Real knowledge about anything, which makes my questions probably rediculous, but what do I know?
Here is the deal, We have learned that the universe is thought to be expanding, and as the universe expands the entropy increases and the temperature decreases, and so does the density and so on. What I have thought of, firsly is that the universe didn't start by expanding with the speed of light since, as the Big Bang started, and eventually as photons were released, they got different displacements and thus some were further away than others. This means that the expansion is uneven. Also, as the uneven expansion is due to maybe photons colliding or something like that. Then as the the universe expands, the expansion after a while should not expand uniformly, cause after a while the photon's angle from its original position decreases, and there are parts that do should be left untouched by the photons, hence uneven expansion.
So far the model of the universe as I have been taught is that, that the universe is trying to reach equilibrium. A problem now is, let's assume that the universe is now expanding with the speed of light, which means that the photons explore with the speed of light. As these photons are namely light, they should have that speed, and as light does not have a mass, it can have infinite energy? - that is, go on forever?
Let's assume it can, if it does, then the following thing would happen: The mass in the universe is moving with a speed of (c-k), as it has a mass and is not able to move with the speed of light. The first question that arise here for me is, why would it even want to create an equilibrium? I mean, the mass of the universe does not behave like a liquid in a container, or does it? And even if it did, eventually it would not be able to fill the bottom of the container, so that there would be empty space between the photons that keep on expanding and the mass that is left behind.
Also, if we assume that it is trying to reach an equilibrium, and that it is affected by a force or a motion in the direction of the expansions, then another problem would arise, namely, light is able to keep on traveling, but the mass's velocoty would decrease all the time. As the mass has the velocity of (c-k) this value of k is likely to increase since it attracts more and the more mass it is, the less will the velocity become, so wouldn't the mass eventually come to rest? That is, wouldn't the universe stop reaching for equilibrium?
Then in all this mess, what would then really happen to the pressure, density, temperature and entropy of the universe?
*sigh* This must be pretty rediculous to hear, and I'm sorry if it is, but I just wanted some clarity for my ponderings. And, no, we have not studied Einsteins relativity theories, but I have a feeling that he is likely to pop up in explaining this, but feel free to use all things available, cause I'm willing to learn :)
Thank you for your time,
Károly