chucky Posted April 7, 2019 Share Posted April 7, 2019 11 hours ago, veejay said: Making The Big Bang Theory TV Set in Far Cry 5! Awesome trial for a new adventure game. 🙂 NICE! Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 10, 2019 Share Posted April 10, 2019 https://www.bbc.com/news/science-environment-47873592Well that's neat!A black hole, which is located in a distant galaxy. The black hole is 500 million trillion km away.Sent from my SM-G975F using Tapatalk Link to comment Share on other sites More sharing options...
son-goku5 Posted April 10, 2019 Share Posted April 10, 2019 2 hours ago, Tonstar17 said: https://www.bbc.com/news/science-environment-47873592 Well that's neat! A black hole, which is located in a distant galaxy. The black hole is 500 million trillion km away.  Pff, these scientists. We have enough black holes in our galaxy 😄 But I'd love to go to the center of our galaxy to see the black hole there. Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 10, 2019 Share Posted April 10, 2019 Pff, these scientists. We have enough black holes in our galaxy [emoji1] But I'd love to go to the center of our galaxy to see the black hole there.[emoji3] Too many to count and even outside our local group, beyond the virgo supercluster which contains the Milky Way and a long way to travel. Well to you and me it is, but on the universal scale it's just 0.2% of the distance to the edge of the observable universe.Even ignoring the expansion of the universe, if you somehow travel the unimaginable distance to this black hole in a single day it'd still take you a year and a half to reach the edge of the universe. [emoji23]Sent from my SM-G975F using Tapatalk Link to comment Share on other sites More sharing options...
son-goku5 Posted April 11, 2019 Share Posted April 11, 2019 18 hours ago, Tonstar17 said: Too many to count and even outside our local group, beyond the virgo supercluster which contains the Milky Way and a long way to travel. Well to you and me it is, but on the universal scale it's just 0.2% of the distance to the edge of the observable universe. Even ignoring the expansion of the universe, if you somehow travel the unimaginable distance to this black hole in a single day it'd still take you a year and a half to reach the edge of the universe. Â I'd love to know what would happen if you went past the edge of the universe. Would you even notice? Would it be like a wall or would you suddenly be in nothingness? Or would the area even traversable? Link to comment Share on other sites More sharing options...
joyceraye Posted April 11, 2019 Share Posted April 11, 2019 4 minutes ago, son-goku5 said: I'd love to know what would happen if you went past the edge of the universe. Would you even notice? Would it be like a wall or would you suddenly be in nothingness? Or would the area even traversable? It doesn't matter. We know per Douglas Adams there's a good pub there. After one intergalactic gargle blaster nobody wants to go any further. Link to comment Share on other sites More sharing options...
veejay Posted April 11, 2019 Share Posted April 11, 2019 (edited) 10 minutes ago, joyceraye said: It doesn't matter. We know per Douglas Adams there's a good pub there. After one intergalactic gargle blaster nobody wants to go any further. So true! 🙂  Edited April 11, 2019 by veejay Link to comment Share on other sites More sharing options...
hokie3457 Posted April 11, 2019 Share Posted April 11, 2019 32 minutes ago, son-goku5 said: I'd love to know what would happen if you went past the edge of the universe. Would you even notice? Would it be like a wall or would you suddenly be in nothingness? Or would the area even traversable? Deep questions, taking us into the deep! Link to comment Share on other sites More sharing options...
Die Zimtzicke Posted April 11, 2019 Share Posted April 11, 2019 (edited) On a Girl Scout leaders page. (I got an award last Saturday for being one for 30 years.) Too bad they didn't call her Doctor, considering she has a PhD, but the intention was good, I guess. Edited April 15, 2019 by Die Zimtzicke Link to comment Share on other sites More sharing options...
Carm6773 Posted April 12, 2019 Share Posted April 12, 2019 (edited) Meanwhile, I'm busy watching Hockey playoffs. Here's my Hockey Boyfriend...Go Bolts! Edited April 12, 2019 by Carm6773 Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 13, 2019 Share Posted April 13, 2019 I'd love to know what would happen if you went past the edge of the universe. Would you even notice? Would it be like a wall or would you suddenly be in nothingness? Or would the area even traversable? Deep questions, taking us into the deep!The question is What is beyond the edge of the known universe? [emoji848]Space is deep, it is so endless, when you're lost it's so relentless, as Hawkwind once said :-)Sent from my SM-G975F using Tapatalk Link to comment Share on other sites More sharing options...
legacy99 Posted April 13, 2019 Share Posted April 13, 2019 I wonder if the flat earthers think the universe is flat tooSent from my SM-G930P using Tapatalk Link to comment Share on other sites More sharing options...
veejay Posted April 14, 2019 Share Posted April 14, 2019 (edited) 7 hours ago, legacy99 said: I wonder if the flat earthers think the universe is flat too ...and "hot, dark and moist" !? 😉  Edited April 14, 2019 by veejay Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 14, 2019 Share Posted April 14, 2019 I wonder if the flat earthers think the universe is flat tooSent from my SM-G930P using TapatalkUnfortunately, the biggest thing is what it doesn't tell us. We still don't know if the universe is finite or infinite, let alone flat or slightly curvature. [emoji5]Sent from my SM-G975F using Tapatalk Link to comment Share on other sites More sharing options...
djsurrey Posted April 14, 2019 Share Posted April 14, 2019 On 4/11/2019 at 7:25 AM, son-goku5 said: On 4/10/2019 at 1:23 PM, Tonstar17 said: Too many to count and even outside our local group, beyond the virgo supercluster which contains the Milky Way and a long way to travel. Well to you and me it is, but on the universal scale it's just 0.2% of the distance to the edge of the observable universe. Even ignoring the expansion of the universe, if you somehow travel the unimaginable distance to this black hole in a single day it'd still take you a year and a half to reach the edge of the universe.  I'd love to know what would happen if you went past the edge of the universe. Would you even notice? Would it be like a wall or would you suddenly be in nothingness? Or would the area even traversable? "edge of observable universe" just means theoretically that is as far as can be seen because that is as far as light could travel since the big bang. If you were someplace else the "edge" would also be someplace else (as far as is knowable). It is an theoretical observational edge not an actual edge. https://en.wikipedia.org/wiki/Observable_universe Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 14, 2019 Share Posted April 14, 2019 "edge of observable universe" just means theoretically that is as far as can be seen because that is as far as light could travel since the big bang. If you were someplace else the "edge" would also be someplace else (as far as is knowable). It is an theoretical observational edge not an actual edge. https://en.wikipedia.org/wiki/Observable_universe Even if its theoretical, is there an edge of the visible universe? how can the universe be expanding if there is no end or edge to it?The cosmological principle theory, is in part, a consequence of the idea that the laws of physics are the same everywhere.This implies, there is no edge and no place to go where the universe just ends.Sent from my SM-G975F using Tapatalk Link to comment Share on other sites More sharing options...
son-goku5 Posted April 14, 2019 Share Posted April 14, 2019 36 minutes ago, Tonstar17 said: Even if its theoretical, is there an edge of the visible universe? how can the universe be expanding if there is no end or edge to it? The cosmological principle theory, is in part, a consequence of the idea that the laws of physics are the same everywhere. This implies, there is no edge and no place to go where the universe just ends. My guess is that at some point, all you'd see is blackness because all the matter and energy that was expelled during the Big Bang hasn't reached those areas of space yet. And by empty space I mean truly empty. No space dust, no background radiation etc Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 14, 2019 Share Posted April 14, 2019    My guess is that at some point, all you'd see is blackness because all the matter and energy that was expelled during the Big Bang hasn't reached those areas of space yet. And by empty space I mean truly empty. No space dust, no background radiation etc Exactly, but the matter and energy must have gone somewhere? All the stars, planets and galaxies that can be seen today make up about 4 percent of the universe. The other 96 percent is made of stuff we can't see, detect or even comprehend. These mysterious substances are called dark energy and dark matter. I guess empty space is where the missing radiation, dark matter and energy are.The region of empty space probably has more energy than everything in the universe, combined.    Sent from my SM-G975F using Tapatalk   Link to comment Share on other sites More sharing options...
Tensor Posted April 14, 2019 Author Share Posted April 14, 2019 It's going to depend on the topography of space.  Is it curved or flat.  If curved, does it have positive or negative curvature.  Is it bounded or unbounded? Is it simply connected or is it not?  The math can get  does get frightful.  So simply, if the universe has positive curvature,  it could be unbounded.  Think of sphere or a torus as positive curvature with no bounds (no edge).  If that is the case, there is no edge to the universe.  The only experimental evidence we have at present, is that, within experimental error, the universe is flat.    As for the rest, we simply don't know.  So we really don't have an  answer to that question, at this time. Link to comment Share on other sites More sharing options...
djsurrey Posted April 14, 2019 Share Posted April 14, 2019 (edited) 2 hours ago, Tonstar17 said: Even if its theoretical, is there an edge of the visible universe? An answer would be more philosophy than science. 2 hours ago, Tonstar17 said: how can the universe be expanding if there is no end or edge to it? You may not find the answer very satisfying but have a look at https://www.space.com/33005-where-is-the-universes-edge-op-ed.html Quote ...analogies also carry a fatal flaw. We can all easily imagine an inflating beach ball or a rising loaf of bread, and we immediately think of them as expanding into something: empty air. The beach ball has a skin. The loaf has a delicious, crunchy crust. They have edges, and they're moving into something. Our minds have played a trick on us, and it's cheating us from being fully awestruck at what's going on. [snip] ...we can have an expanding universe without needing an edge or a thing for it to expand into. I'll admit I have trouble wrapping my head around this concept. But that's the beauty of using mathematics to understand the universe: We can create and manipulate concepts that our brains simply couldn't handle on their own!  Edited April 14, 2019 by djsurrey Link to comment Share on other sites More sharing options...
joyceraye Posted April 14, 2019 Share Posted April 14, 2019 I don't think it matters so long as they're open. By closing time who'd care ? Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 14, 2019 Share Posted April 14, 2019 It's going to depend on the topography of space.  Is it curved or flat.  If curved, does it have positive or negative curvature.  Is it bounded or unbounded? Is it simply connected or is it not?  The math can get  does get frightful.  So simply, if the universe has positive curvature,  it could be unbounded.  Think of sphere or a torus as positive curvature with no bounds (no edge).  If that is the case, there is no edge to the universe.  The only experimental evidence we have at present, is that, within experimental error, the universe is flat.    As for the rest, we simply don't know.  So we really don't have an  answer to that question, at this time. Yeah, no one answer to these questions, but we cant help speculate.The left-over radiation from the Big Bang suggest that the universe might be flat? or is there enough matter for the universe to have zero curvature?The density of matter curves the universe around on itself to form an analogue of a sphere. Is it easily described mathematically. Nope. If the universe is indeed curved, then it is finite, just like the surface of a sphere is. What more, the gravitational pull exerted by all the mass will eventually stop it from expanding and cause it to contract. Eventually it will end in a big crunch.Sent from my SM-G975F using Tapatalk  Interesting concept. I just can't get my head around the universe expanding but no edge, its like saying, the mysterious substance called dark energy does not exist. It doesn't make sense, but I guess that the mathematics of the concept.Sent from my SM-G975F using Tapatalk Link to comment Share on other sites More sharing options...
son-goku5 Posted April 15, 2019 Share Posted April 15, 2019 10 hours ago, Tonstar17 said: Exactly, but the matter and energy must have gone somewhere? All the stars, planets and galaxies that can be seen today make up about 4 percent of the universe. The other 96 percent is made of stuff we can't see, detect or even comprehend. These mysterious substances are called dark energy and dark matter. I guess empty space is where the missing radiation, dark matter and energy are.The region of empty space probably has more energy than everything in the universe, combined. That's why they say that empty space isn't truly empty ^^ But I was talking about the space after the space where the energy hasn't reached yet. The universe is still expanding Link to comment Share on other sites More sharing options...
djsurrey Posted April 15, 2019 Share Posted April 15, 2019 15 hours ago, Tonstar17 said: Interesting concept. I just can't get my head around the universe expanding but no edge, its like saying, the mysterious substance called dark energy does not exist. Is it? Link to comment Share on other sites More sharing options...
Tonstar17 Posted April 15, 2019 Share Posted April 15, 2019 Is it? Yep.Sent from my SM-G975F using Tapatalk That's why they say that empty space isn't truly empty ^^ But I was talking about the space after the space where the energy hasn't reached yet. The universe is still expandingThat space cannot exist if there are no radiation or energy.Sent from my SM-G975F using Tapatalk Link to comment Share on other sites More sharing options...
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