Thread: Dark Matter

Originally Posted by Seraphim

Then if gravity is so strong, why is the universe expanding?

Gravity is slowing the expansion. If this expansion will continue forever depends on whether or not there is enough matter in the universe to reverse it.

Originally Posted by Seraphim

So, we're talking rear-ending galactic slowpokes here?

Yes... I think we're looking at a comparison of easily observable effects versus effects only observed on the edge of scientific understanding. At least that's my take on it.

God is not easily (naturally) observed the same way gravity or cookies are. In order to observe him, you may have to travel to the edge of your natural understanding.

Originally Posted by NYCshaver

Gravity is slowing the expansion. If this expansion will continue forever depends on whether or not there is enough matter in the universe to reverse it.

According to the people in the know, the rate of expansion is actually increasing.

Gravitational attraction between nearby objects is powerful enough to overcome the initial outward momentum imparted to everything from the Big Bang. If it wasn't, nothing would have ever touched again after it (i.e. the universe would be solely composed of the tiniest of particles slowly drifting apart).

As for things colliding head-on, here's an illustration. Since the effects of gravity increase as the distance between two bodies decreases, the two galaxies are going to be coming closer and closer to a perfect head-on collision.





Even if they don't have a perfect head-on collision, it's going to make a big mess, and stuff will be flung out from the collision in all directions, only to regroup later with other stuff, now traveling in entirely new directions and attracted to other nearby clumps of things. After many such collisions, you've got a fairly chaotic situation. In such an environment, I'd wager perfect head-on collisions are entirely possible, if not inevitable.

Other reasons this stuff is hard to think about:

• gravity affects the rate of the universe's expansion (it expands slower in high-gravity areas)
• this isn't just objects moving farther apart along "outward" trajectories - space itself is expanding in all directions
• all we can see is a freeze-frame of any of it, even though the farther we look, the farther back in time we see

I have been conducting further research....



But I can't figure out why the outline is not symmetrical?

it's a partial eclipse of the heart

Originally Posted by northpaw

Gravitational attraction between nearby objects is powerful enough to overcome the initial outward momentum imparted to everything from the Big Bang. If it wasn't, nothing would have ever touched again after it (i.e. the universe would be solely composed of the tiniest of particles slowly drifting apart).

As for things colliding head-on, here's an illustration. Since the effects of gravity increase as the distance between two bodies decreases, the two galaxies are going to be coming closer and closer to a perfect head-on collision.





Even if they don't have a perfect head-on collision, it's going to make a big mess, and stuff will be flung out from the collision in all directions, only to regroup later with other stuff, now traveling in entirely new directions and attracted to other nearby clumps of things. After many such collisions, you've got a fairly chaotic situation. In such an environment, I'd wager perfect head-on collisions are entirely possible, if not inevitable.

Other reasons this stuff is hard to think about:

• gravity affects the rate of the universe's expansion (it expands slower in high-gravity areas)
• this isn't just objects moving farther apart along "outward" trajectories - space itself is expanding in all directions
• all we can see is a freeze-frame of any of it, even though the farther we look, the farther back in time we see

Thanks.

It doesn't even have to be that radical a shift. If two spiral galaxies , both speeding away from the alleged Big BAng at the same velocity, both with a clockwise rotation, all that has to happen to have a head-on collision is to have the the two galaxies overlap, as the rotational nature of the galaxies will have the stars swirling "down" on the one side and "up" on the other.

Originally Posted by Seraphim

Thanks.

It doesn't even have to be that radical a shift. If two spiral galaxies , both speeding away from the alleged Big BAng at the same velocity, both with a clockwise rotation, all that has to happen to have a head-on collision is to have the the two galaxies overlap, as the rotational nature of the galaxies will have the stars swirling "down" on the one side and "up" on the other.

EDIT: nevermind, my funny wasn't.

Originally Posted by Seraphim

I have been conducting further research....



But I can't figure out why the outline is not symmetrical?

The "missing piece" may have been dislodged by a head-on strike from another cookie.

The missing part may have been bitten off (Hoglahoo is a main suspect in the case...).

The missing part may not be missing at all, perhaps the cookie was baked that way?

The missing part may have been sucked into a microscopic black hole.

This cookie may be on it's way to becoming a dougnut, as the microscopic black hole shifts more towards the center of mass, it will create a toroid.

There is no missing piece, the part you can't see is simply theoretical, undetectable, but its' presence can be inferred from the rest of the cookie, And this dark portion of the cookie could account for the majority of the caloric makeup of this tasty snack.

Originally Posted by Seraphim

Did you follow the instructions?

Here:

His mother said to the servants, "Whatever He says to you, do it." 6 Now there were set there six waterpots of stone, according to the manner of purification of the Jews, containing twenty or thirty gallons apiece. 7 Jesus said to them, "Fill the waterpots with water." And they filled them up to the brim. 8 And He said to them, "Draw some out now, and take it to the master of the feast." And they took it. 9 When the master of the feast had tasted the water that was made wine, and did not know where it came from (but the servants who had drawn the water knew), the master of the feast called the bridegroom

I did follow them as closely as I could. I couldn't find the mother, the servants, the master of the feast, or Jesus (the book says they died long time ago) so I did the saying, the pouring and the tasting myself.
I don't have the six stone waterpots either (or even if I had I couldn't admit to it or I'll be put to jail for smuggling antiques), so I used a miniature version.
In science you can replace parts with ones with identical function and it all works the same, apparently that doesn't work the same in religion.
I do remember a scientist who was the only one who can create this amazing devices with remarkable properties. He ended up not only being fired, but also stripped from his PhD for falsification.
I haven't seen anything resembling such checks and balances for religious practitioners. As far as I recollect the Bible says that whatever 'miracle' Jesus was able to perform, any of his disciples should be able to reproduce.
So, anybody who considers themselves a disciple of Jesus please do me a favor and give me instructions as simple as his of how to get the water in my pitchers become Montrachet (actually Amarone would do just as well). Without going to Crete, of course. Keep in mind, just like the rest of those feast goers, I could care less about Jesus himself, I'm interested primarily in the results.