The end of the universe itself?

The end of the universe itself? - Printable Version

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The end of the universe itself? - Lylac - 2008-08-02

The standard model of particle physics shows that the LHC doesn't have enough energy to create black holes. It is only an extension of the standard model (of which there is no evidence for) that hypothesises that you can create black holes, but even then they wouldn't be able to accrete matter.

The end of the universe itself? - Abba26 - 2008-08-22

Truemark Wrote:Unfortunately...it isn't

Lol, I'm from Dallas. We got a lot of black holes around there.

The end of the universe itself? - Holypie - 2008-08-26

Abba26 Wrote:Lol, I'm from Dallas. We got a lot of black holes around there.

about that video, i think i heard 'pink hole' in the first few seconds after the words 'black hole' were said

The end of the universe itself? - Arroz - 2008-08-30

WandererWillow Wrote:I think it would only be racist if you asked for white rice and were white...I could see someone throwing a fit over there not being "black rice".

yeah it may be late but heres a compromise add black beans those go good together

The end of the universe itself? - Hazzy - 2008-08-30

Arroz Wrote:yeah it may be late but heres a compromise add black beans those go good together

That's racist.
Rice is good for you - it's white
Beans make your fart, it's bad - its black

lolwut?

The end of the universe itself? - GMSInfighter - 2008-08-30

You know this was supposed to happen like 2 weeks ago? :f6:

The end of the universe itself? - Shakey Stevens - 2008-08-31

Well to put the 'black hole theory' to rest. A black hole is basically a large collection of mass in a small volume. In order for a black hole to be made it would in fact require a lot of mass, more than the mass of the earth. How's something like this supposed to form on earth and consume it.

Think of the universe a large bedsheet stretched out by people holding each of the sides and corners. Now the earth or a planet for that matter would be like placing an orange on the sheet, notice it begins to sag a little around the orange, that represents 'gravity'. A black hole would be represented by placing a pea-sized ball weighing significally more than an orage, we'll say 100lbs for the hell of it. It creates a deep sag in the sheet, this is the gravitational force is has from all that concentrated mass. Now, the gravitational force of a black hole is exponential. You can be right beside the black hole and not experience its gravitational pull, but as soon as you cross the 'threshold' you'll be pulled in at increasingly high force pulling you apart atom by atom. The acceleration would be so great though that time would basically stand still. Lets just say time isn't constant, and this has been proven. Scientists took 2 sycronized atomic clocks, put on in a jet and sent it around the world, the other was left in the hangar. When the two clocks were put back together they varied by a couple minutes, the one on the jet being further behind.

I'm just gonna leave it at that for now, since while ive been typing this the post has prolly closed for some reason like the last, lol.

The end of the universe itself? - Devil - 2008-08-31

Hmmmm just 10 more days folks! Then we know the answers! Tongue

10 September will be the big day the Large Hadron Collider will be started up first! Smile

http://press.web.cern.ch/press/PressReleases/Releases2008/PR06.08E.html

P.S. Notice how their control room is designed to resemble a black hole... hint, hint? Tongue

The end of the universe itself? - Shakey Stevens - 2008-08-31

Devil Wrote:Hmmmm just 10 more days folks! Then we know the answers!

10 September will be the big day the Large Hadron Collider will be started up first!

http://press.web.cern.ch/press/PressReleases/Releases2008/PR06.08E.html

P.S. Notice how their control room is designed to resemble a black hole... hint, hint?

A black hole being formed simply isnt possible, there isnt enough mass with the planet itself to create a black hole. (Mass cannot be created... ya that rule from chemistry/physics)

The end of the universe itself? - Wani - 2008-08-31

They're called micro-black holes for a reason. It's not the amount of mass, but rather the density. It's just they're small and unstable. Also, your first post about black holes had a bunch of errors. You can't be "right next" to a black hole and not feel anything. And the gravitational force isn't exponential, it's an inverse-square relationship.

The end of the universe itself? - Shakey Stevens - 2008-08-31

Wani Wrote:They're called micro-black holes for a reason. It's not the amount of mass, but rather the density. It's just they're small and unstable. Also, your first post about black holes had a bunch of errors. You can't be "right next" to a black hole and not feel anything. And the gravitational force isn't exponential, it's an inverse-square relationship.

Unfortunately for your claim density is measured by mass/volume, so once again you need mass to create a black hole. In order to feel the force of a black hole you have to in fact be its pull, imagine a cone. At the point is where all the mass is concentrated (very dense Wink

), unless you step into the area where the ice cream goes your not going to feel a thing (from the black hole that is).

The end of the universe itself? - Hazzy - 2008-08-31

Shakey Stevens Wrote:Unfortunately for your claim density is measured by mass/volume, so once again you need mass to create a black hole. In order to feel the force of a black hole you have to in fact be its pull, imagine a cone. At the point is where all the mass is concentrated (very dense ), unless you step into the area where the ice cream goes your not going to feel a thing (from the black hole that is).

1 gram in 0.0000000000000000000000000000000000000000001 cm.
That's more than a little dense.

The end of the universe itself? - Russt - 2008-08-31

Shakey Stevens Wrote:Unfortunately for your claim density is measured by mass/volume, so once again you need mass to create a black hole. In order to feel the force of a black hole you have to in fact be its pull, imagine a cone. At the point is where all the mass is concentrated (very dense ), unless you step into the area where the ice cream goes your not going to feel a thing (from the black hole that is).

Do you have a graphing calculator?
Graph y = -1/x^2.
There's your "cone".

Edit: Here, I did you a favor. I plotted it in Mathematica so you don't have to.
[Image: 2wc2x40.png]

Inverse square relationship, as Wani said.

The end of the universe itself? - Hazzy - 2008-08-31

Russt Wrote:Do you have a graphing calculator?
Graph y = -1/x^2.
There's your "cone".

He's talking about a Black Hole's Light Cone. :x
Hard to explain it.

The end of the universe itself? - Russt - 2008-08-31

He was talking about standing right next to a black hole and not feeling anything.

The end of the universe itself? - Hazzy - 2008-08-31

If you're out of the light cone. :x
Hard to explain. Try wikipedia if this doesn't work.

When you drop a stone in a pool of water, ripples form and move away. Same happens with a Black Hole. If you graph where that 'ripple' is with space on X and time on Y, it turns into a cone, where the point is the place and time of the black hole's creation.
If you stand out of that cone, you won't be affected by it's gravity, until you move into it as time passes. :x

The end of the universe itself? - Shakey Stevens - 2008-08-31

Hazzy Wrote:1 gram in 0.0000000000000000000000000000000000000000001 cm.
That's more than a little dense.

F = GMm/R² So are we talking about a subatomic black hole that wouldn't exist. 1 gram would do nothing regardless of how much they decrease its volume.

Russt Wrote:Do you have a graphing calculator?
Graph y = -1/x^2.
There's your "cone".

Do you mind explaining to me the point your trying to make? I dont have a calculator handy, Im at work, more or less. But if im not mistaken it will be a graph of two curves, as x approaches -infinity y approaches 0, as x approaches infinity y approaches 0, as x approaches 0 y approaches -infinity.

Edit: i see u graphed it for me.

Edit#2: Event Horizon. And thank you for wikipedia for terminology i've forgotten over the years, the concepts are fresh just not the vocabulary.

The end of the universe itself? - Wani - 2008-08-31

Nonono, you don't get my point about density. It's possible to have a microscopic black hole, provided the mass is dense enough. I forget the limit this happens at, but it can happen. It's just it'll last for a fraction of a second before the repulsive forces make it vanish. (Because the repulsive forces >>> gravitational forces)

EDIT: Basically, it's where if light gets close enough to the black hole, it'll get sucked in.

The end of the universe itself? - Shakey Stevens - 2008-08-31

Wani Wrote:Nonono, you don't get my point about density. It's possible to have a microscopic black hole, provided the mass is dense enough. I forget the limit this happens at, but it can happen. It's just it'll last for a fraction of a second before the repulsive forces make it vanish. (Because the repulsive forces >>> gravitational forces)

EDIT: Basically, it's where if light gets close enough to the black hole, it'll get sucked in.

Sounds good to me. I almost posted something about an atomic black hole, but then decided to keep things more simple, b/c there was no way this black hole was going to 'swallow the earth'. Eek

The end of the universe itself? - Wani - 2008-08-31

Oh no, there's really no threat to the world. Having said that, I want a particle accelerator. B> particle accelerator for Otago uni.