- #1
shemszot
- 12
- 0
Hello,
I'm wondering, how could the universe continue to expend directly after the big bang considering the total amount of mass confined to the relatively small space.
As an example consider that it takes 8 minutes for light to travel from the sun to earth. If at the beginning of time someone was to stand 150million km away from the big bang (distance from the sun to early) it would take 8 minutes for the first energy/particles to get to him. So consider the situation after 8 minutes. You have all the mass of the universe confined to the area within that sphear. Given a rough estimate of the total mass of the visible universe (excluding any dark matter) we have about 2E(52) KG. That means anyone standing 150M KM away would experience an acceleration of about 6E(19) m/sec [square]. At that intensity the gravitational field slows down any particle trying to escape it's field from the speed of light to 0 in 5E(-12) seconds. Considering that the rate of change of the gravitation field at that point is relatively slow (due to increase in radius), how could anything have escaped this force. Why didn't the universe just collapse onto itself?
Let me know your thoughts.
Thanks,
Shem
{as an addendum.. I used the mass of 2E52 for the total mass of the visible universe assuming our sun is an average sun, and our galaxy is an average galaxy).
I'm wondering, how could the universe continue to expend directly after the big bang considering the total amount of mass confined to the relatively small space.
As an example consider that it takes 8 minutes for light to travel from the sun to earth. If at the beginning of time someone was to stand 150million km away from the big bang (distance from the sun to early) it would take 8 minutes for the first energy/particles to get to him. So consider the situation after 8 minutes. You have all the mass of the universe confined to the area within that sphear. Given a rough estimate of the total mass of the visible universe (excluding any dark matter) we have about 2E(52) KG. That means anyone standing 150M KM away would experience an acceleration of about 6E(19) m/sec [square]. At that intensity the gravitational field slows down any particle trying to escape it's field from the speed of light to 0 in 5E(-12) seconds. Considering that the rate of change of the gravitation field at that point is relatively slow (due to increase in radius), how could anything have escaped this force. Why didn't the universe just collapse onto itself?
Let me know your thoughts.
Thanks,
Shem
{as an addendum.. I used the mass of 2E52 for the total mass of the visible universe assuming our sun is an average sun, and our galaxy is an average galaxy).
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