First  Prev  1  2  3  Next  Last
Post Reply What is Dark Matter/Energy?
5517 cr points
Send Message: Send PM GB Post
Offline
Posted 6/4/16
Well it's an interesting concept that there's a force out there in the universe we can see the effects of, but not physically see in no possible way. Which is why it has so much debate and hypotheses around it. I'm no physicist but I think i've come up with a pretty decent idea recently and I felt like sharing it and getting some feedback as well as some other people's ideas on the topic.



So I heard Dark Energy/Matter was a sort of opposing force of gravity (gravity pulls matter together, Dark Energy pushes it away). Using that, I figured that Dark Matter was not only a stupid name for that effect but that it seems that it's more so just a state of a near absolute voidance of any matter. Pure voidance.

Dark Energy
The way I see it is the universe consists of voidance (dark energy) and matter, and all effects from there on is just the two forces seeking equilibrium. Dark Energy (or space in general) works a lot like water in concept. As matter gets more dense, more dark energy is pushed out from it's spot to make room for the matter. As dark energy is moved out, it creates a warping of energy around the matter as it tries to force it's way back inside the matter and equalize. Dark energy pressure works a lot like water pressure but in all directions. That "pressure" is gravity. To put it simple, I think gravity is not a force exerted by matter into space, but instead space applying force to matter.

Dark Matter
As for the whole weird "Dark Matter" debate and the bizarre warping of light out in the middle of nowhere in space (pressure/gravity is the only thing that can warp space and bend light right?), I think I got an idea of what that is. It's not "Dark Matter" but more of an effect generated by little to no gravity pressure in space. The force exerted via gravity plateaus off so far it reaches a near perfect "zero" and that perfect voidance(or perfect vacuum I suppose) warps our constantly bended and imperfect relative physics. It kind of works like a reverse concept Black Hole. Black Holes are a singularity of matter so ultra-compressed it can reach nigh-infinite values and physically warp space just as hard. The "Dark Matter" phenomenon is the opposite as the lack of matter reaching near perfect "zero" values, rather than a Black Hole's near infinity.


What do you guys think?
30236 cr points
Send Message: Send PM GB Post
It doesn't matter.
Offline
Posted 6/4/16
TL:DR
Probably, however nobody knows much about dark matter.
I say probably because it's not a void so it must be made up of some kind of matter and from what I know about matter, matter can be turned into energy.
292 cr points
Send Message: Send PM GB Post
25 / F
Offline
Posted 6/4/16
Where would one go to buy dark matter?
20911 cr points
Send Message: Send PM GB Post
20 / M / Bundaberg, Queens...
Offline
Posted 6/4/16 , edited 6/4/16

DengekiFugu wrote:

Where would one go to buy dark matter?


well seeing as people but normal matter from the normal web...

the dark web!
Posted 6/4/16
8746 cr points
Send Message: Send PM GB Post
M / Behind you!
Offline
Posted 6/4/16

DengekiFugu wrote:

Where would one go to buy dark matter?

The pet shop

11783 cr points
Send Message: Send PM GB Post
26 / F
Online
Posted 6/4/16 , edited 6/4/16
I try to keep it simple. Feel free to correct me if it seems like it could be misunderstood

First of all don't be fooled by the word singularity. It actually just means "we don't really know what it is. We might have an idea what it is but please stop asking". Singularity just sounds better then "that space thing".

Dark Matter
Dark matter is called like that because we can't see the matter itself. It may sound weird when you first hear it but don't forget we're talking about astrophysics here. Calling one of the biggest telescopes on earth (actually four telescopes combined) "Very Large Telescope" speaks for itself.
But just because dark matter itself isn't visible for our eyes doesn't mean that we can't observe it indirectly. It's called gravitational lensing (one way to find proof for dark matter).
If we look at pictures of galaxys for example than we see that something affects our sight on it and that something is gravity (as far as we know). Gravity deforms spacetime. But the gravity of the visible objects isn't enough to explain why the gravitational lensing has such an huge impact on our view. So there must be something else we can't see directly. And that's dark matter as far as we know. But actually the weirdest thing about dark matter isn't that we can't see it, it's that we can't physically interact with it (as far as we know) even though it's gravity can affect it's environment.
But please don't forget that dark matter isn't proven yet. Yes there are evidences that it exists but not enough to really prove it. But personally I think that there is dark matter and that there's more dark matter then visible matter.

Dark Energy
Could explain why the universe is expanding way faster then it should. Actually the assumption was that the universe is slowing down but that was wrong. So there has to be something that explains it and that would be dark energy but there's hardly any proof for it. And it will take a little bit of time until we know what's actually going on out there.
If I would have to pick a side I would go for dark energy exists but who knows. It's still a pretty vague concept.

By the way pressure isn't the same as gravity. Don't confuse them.
Posted 6/4/16
If I could answer that I'd have a Nobel prize.
31145 cr points
Send Message: Send PM GB Post
30 / M
Offline
Posted 6/4/16
From what I remember of a Krauss book I read on atheism physics, dark energy is, in a nutshell, the energy of empty space, and the energy density of empty space seems to be a universal constant - and it tries to do pretty much the exact opposite of gravitational attraction.

What this means is that immediately after the big bang, all matter was much, much closer together (remember that the attraction between objects due to gravity is inversely proportional to distance), so matter was the dominant gravitational force, causing the universe's expansion to decelerate.

Then, when the universe was about half the current size (5 billion years ago, or some such), the energy density of matter became low enough that dark energy became the dominant gravitational force and the universe's expansion began accelerating.

Or something like that... I'm not entirely sober.
runec 
28300 cr points
Send Message: Send PM GB Post
Online
Posted 6/4/16 , edited 6/4/16

Kazzooey wrote:
Well it's an interesting concept that there's a force out there in the universe we can see the effects of, but not physically see in no possible way. Which is why it has so much debate and hypotheses around it. I'm no physicist but I think i've come up with a pretty decent idea recently and I felt like sharing it and getting some feedback as well as some other people's ideas on the topic.


No offence, but I think you probably should have just stopped right there.
6163 cr points
Send Message: Send PM GB Post
34 / M / Off the map.
Offline
Posted 6/4/16
Higgs: it's too dark.

CERN flips the light switch.

Higgs: I can see.
91529 cr points
Send Message: Send PM GB Post
23 / M / Finland, city of...
Offline
Posted 6/4/16
well i'd say it's dark matter when your cycling on dark street without streetlights on and out of nowhere you notice row of white teeth and eyes.In same spot that seemeed empty till then. Then one hears "hello jamal. Care to light my cigarette?".True story.
16789 cr points
Send Message: Send PM GB Post
Hoosierville
Offline
Posted 6/4/16
If you collide Matter and Anti-matter it explodes into nothing.
10263 cr points
Send Message: Send PM GB Post
Offline
Posted 6/4/16 , edited 6/4/16
My limited understanding of Dark Energy and Dark Matter:

Normal energy and matter will lose density as it spreads out in space. I believe most if not all people have a solid concept of this.

And while the density of dark matter supposedly acts similarly, the density of dark energy remains constant. This means that as space is created with the outward push of the universe, so too is dark energy created.

Also, consider that we have only seen what we BELIEVE to be the effects of dark energy and dark matter. We have not really witnessed or measured it directly. It's like this: If you were to drop many tiny invisible shapes into a glass jar of water.... and were only able to peer into that jar from a great distance, with an instrument such as binoculars.... you'd still know more about what was in that jar than we know about dark matter and energy.

MY THEORY: Dark Matter and Dark Energy are not Energy and Matter at all. What we are witnessing is how the dimension of space interacts with matter and energy on levels that we do not yet understand. The entire idea behind dark energy breaks our known understanding of the laws of physics, in that it is created by the expansion of the universe and our understanding is that energy is neither created nor destroyed. However, if you look at it as an interaction between space and the material within the universe, it begins to make a little more sense.



But, hey....who the hell really knows?
292 cr points
Send Message: Send PM GB Post
25 / F
Offline
Posted 6/4/16

HolyDrumstick wrote:
Normal energy and matter will lose density as it spreads out in space. I believe most if not all people have a solid concept of this.

Yes, Kim and Khloe were just tweeting their observations on the interaction between energy and matter while accelerating through space. Absolutely riveting.

You must not get out much and chat with average citizens if you actually believe that statement. You give us far too much credit.

If I were attending Yale, I would probably be offended.

First  Prev  1  2  3  Next  Last
You must be logged in to post.