Supercomputer clue to black holes,

[Gerald]

The colossal black holes at the centres of galaxies probably formed shortly after the Big Bang, a study suggests.

Some of these behemoths are billions of times more massive than our Sun.

Supercomputer simulations indicate the conditions for the birth and growth of these giants could have been set in play by the merger of galaxies when the cosmos was just a few hundred million years old.

http://www.bbc.co.uk/news/science-environment-11087715

http://imgur.com/PMdy7.jpg



Note: 25 August 2010 Last updated at 18:20 GMT

[SteamWake]

These numbers are just impossible to wrap your mind around.

"Billions of times more massive than our own sun" and only the size of an average planet if not smaller.

Still they cannot put the 'finger' on the elusive dark matter.

[TLAM Strike]

http://img340.imageshack.us/img340/695/motivator2972716.jpg

[Aramike]

These numbers are just impossible to wrap your mind around.

"Billions of times more massive than our own sun" and only the size of an average planet if not smaller.

Still they cannot put the 'finger' on the elusive dark matter.They might be getting close to dark matter, though. We have several promising WIMP (weakly interacting massive particle) detection experiments occuring, including ones that have had several "hits". Plus, the LHC in Cern may be able to indirectly detect them as well.

Now Dark Energy ... well, that's another story altogether. :cool:

[Dowly]

Some great space stuff, including 4-5 videos about blackholes here:
http://www.youtube.com/user/SpaceRip

[Gerald]

Some great space stuff, including 4-5 videos about blackholes here:
http://www.youtube.com/user/SpaceRip thanks for the link :yep:

[GoldenRivet]

I watched a video (http://www.youtube.com/watch?v=HEheh1BH34Q)recently that mentioned the largest known star in the universe, CY Canis Majoris - the video makes mention that if you were to fly a jet at 560 mph just above the surface it would take you 1,100 years to circle it once! :o

[Gerald]

I watched a video (http://www.youtube.com/watch?v=HEheh1BH34Q)recently that mentioned the largest known star in the universe, CY Canis Majoris - the video makes mention that if you were to fly a jet at 560 mph just above the surface it would take you 1,100 years to circle it once! :o can not imagine that kind of distance which is also not super PC can do, either, in theory only,just think of our "little" sun which we see as huge, but it takes only eight light-minutes to reach,btw thanks for the link great stuff :up:

[Weiss Pinguin]

http://img340.imageshack.us/img340/695/motivator2972716.jpg
:haha:

[Takeda Shingen]

Wow. My knowledge of space an phenomena is limited, but I am always astounded to read statistics about them. It is enough to make our world seem very, very small.

[Gerald]

http://imgur.com/O7D99.jpg
http://imgur.com/T7agM.jpg
http://imgur.com/Xfdow.jpg

[Biggles]

I watched a video (http://www.youtube.com/watch?v=HEheh1BH34Q)recently that mentioned the largest known star in the universe, CY Canis Majoris - the video makes mention that if you were to fly a jet at 560 mph just above the surface it would take you 1,100 years to circle it once! :o

Ah you beat me to it! I love that video!

[Castout]

I had a weird dream when I was a kid . . . that I was flying above my bed and on top of me some feet away there was a big round swirl of seemingly black smoke like-hole that was sucking me extremely hard into it and that I felt it would bring me to a far far away place at some frakkin incredible speed once I entered.

It seems that I'm not alone:

http://images.icanhascheezburger.com/completestore/2008/10/31/128699823430457767.jpg

[ReFaN]

and heres a video showing what happens when you get sucked into one.

http://www.youtube.com/watch?v=iAyvMU8umUY

[TLAM Strike]

I had a weird dream when I was a kid . . . that I was flying above my bed and on top of me some feet away there was a big round swirl of seemingly black smoke like-hole that was sucking me extremely hard into it and that I felt it would bring me to a far far away place at some frakkin incredible speed once I entered. Sounds a lot like those Alien Abduction stories you hear. Which from what I've heard are more likely caused by temporary paralysis while asleep (a natural occurrence to keep you from moving around too much while asleep) and your brain no longer feels the bed below it making it believe you are flying.




It seems that I'm not alone:

http://images.icanhascheezburger.com/completestore/2008/10/31/128699823430457767.jpgUmmmmmmm.... point of interest the reason its called a "black hole" is because its gravity is so strong light cannot escape it so you can't see it.

[ReFaN]

Ummmmmmm.... point of interest the reason its called a "black hole" is because its gravity is so strong light cannot escape it so you can't see it.

if we cant se it how do we know it exists? i just blew a hole of that theory, hah!

[Castout]

Sounds a lot like those Alien Abduction stories you hear. Which from what I've heard are more likely caused by temporary paralysis while asleep (a natural occurrence to keep you from moving around too much while asleep) and your brain no longer feels the bed below it making it believe you are flying.




Ummmmmmm.... point of interest the reason its called a "black hole" is because its gravity is so strong light cannot escape it so you can't see it.


Yea it was just a dream. Was just joking around

As for the black hole I think we do can see it just not in outer space where it's black :D

When light is sucked right in and never gets reflected back then it would mean the black hole would be just that: black.
At least that's how I understand it

[ReFaN]

Yea it was just a dream. Was just joking around

As for the black hole I think we do can see it just not in outer space where it's black :D

When light is sucked right in and never gets reflected back then it would mean the black hole would be just that: black.
At least that's how I understand it

Well well smartguy, you just had to ruin my day, and i felt so good about myself for almost busting the black hole conspiracy.

In other words, you are probably right, or atleast the scientists working with this.

[Dowly]

From what I've read and seen on documentaries, Black Hole isn't black. Only the very center is black, the outer edges are quite colorful not to mention the stream of particles it's shooting out (check the pic on previous page by Vendor).

[TLAM Strike]

From what I've read and seen on documentaries, Black Hole isn't black. Only the very center is black, the outer edges are quite colorful not to mention the stream of particles it's shooting out (check the pic on previous page by Vendor).

Dowly is on the right track, while the black hole is consuming matter its visible by the effect it is having on said matter. If it is consuming no matter than it becomes invisible to the eye once again, although you could still detect (in theory) it's gravitational distortion by gravity lensing a star behind the black hole (basically the star's light bends around the black hole so you can see it.)

Detecting them from their Hawking Radiation is another possibility although I'm not sure if that has yet been accomplished. :hmmm:

[Castout]

Well well smartguy, you just had to ruin my day, and i felt so good about myself for almost busting the black hole conspiracy.

In other words, you are probably right, or atleast the scientists working with this.

Doesn't matter same thing happened to me with below

Dowly is on the right track, while the black hole is consuming matter its visible by the effect it is having on said matter. If it is consuming no matter than it becomes invisible to the eye once again, although you could still detect (in theory) it's gravitational distortion by gravity lensing a star behind the black hole (basically the star's light bends around the black hole so you can see it.)

Detecting them from their Hawking Radiation is another possibility although I'm not sure if that has yet been accomplished. :hmmm:

:damn:

[UnderseaLcpl]

Detecting them from their Hawking Radiation is another possibility although I'm not sure if that has yet been accomplished. :hmmm:

I'm pretty sure I heard on tv that it hadn't actually been done yet. I know its true because Morgan Freeman was the one who said it. You cannot argue with a man who looks that wise.

-on a sidenote, you made my "favorite people of the week" list by linking that cool "Atomic Rocket" site in the XV-stealth-thread-thing. Fascinating stuff, even if most of the equations are over my head. Fun Fact: You can survive in a hard vacuum for about 90 seconds. I spent 28 years not knowing this.

[TLAM Strike]

I'm pretty sure I heard on tv that it hadn't actually been done yet. I know its true because Morgan Freeman was the one who said it. You cannot argue with a man who looks that wise. If Morgan Freeman said it, then it must be true- the man played God, Two Presidents and the Director of the CIA: You have to trust him. :03:

-on a sidenote, you made my "favorite people of the week" list by linking that cool "Atomic Rocket" site in the XV-stealth-thread-thing. Fascinating stuff, even if most of the equations are over my head. Fun Fact: You can survive in a hard vacuum for about 90 seconds. I spent 28 years not knowing this. One of my favorite websites. It changed the way I look at Science Fiction. :up:

[Weiss Pinguin]

Fun Fact: You can survive in a hard vacuum for about 90 seconds. I spent 28 years not knowing this.
Seems Hollywood has spent the last 28 years not knowing it either :p2:

[Dowly]

And of course, there's an quiz on how long you can survive in a vacuum:
http://www.oneplusyou.com/q/v/space_vacuum

(It probably ask if you want to register somewhere, but just click the 'not thanks, take me to the results' button on bottom-right corner)

48 seconds here. :shifty:

If there's any truth to the things there's written on the result page, I think Event Horizon got pretty close to it when that young guy blew himself out into the space. :hmmm:

[TLAM Strike]

And of course, there's an quiz on how long you can survive in a vacuum:
http://www.oneplusyou.com/q/v/space_vacuum

(It probably ask if you want to register somewhere, but just click the 'not thanks, take me to the results' button on bottom-right corner)

48 seconds here. :shifty: 1:29 here. ;)

If there's any truth to the things there's written on the result page, I think Event Horizon got pretty close to it when that young guy blew himself out into the space. :hmmm: One of the few movies or TV shows to get it right. There was a Star Trek TNG episode that did it right once a long time ago.

[Gerald]

is that it is a pure coincidence that they went by the name "black" In our references, we know little about these phenomena, and then there is room for speculation,on the planet we live in (Tellus) will experience a much longer future no one can imagine,and if it ever comes to our attention (which I highly doubt) the data will likely be composed of entirely different values and materials if they so-called "black hole".

[Dowly]

Think the Black Hole name came from the method they use even today to look for them: watching for black areas in space that look 'funky' and see how the planets/stars behave there. If they seem to have irregular paths and go faster at certain points of the path, it's safe to assume there is an Black Hole there that is pulling the planets/stars to such an odd paths. :hmmm:

This of course just my assumption how the name came to be, might be wrong. :yep:

As for knowing about the BH's, I'd say we don't know much, but we can assume a lot. We assume there's an huge mass in the center that pulls nearby objects to it, we also can assume that it is more of an grinder than an bottomless pit as it shoots out particles when it's "consuming" something, as to chew and spit it out again. I'm quite sure I saw/read from somewhere that they have a pretty good idea on how BH's are born too (big star imploding or something like that).

Again, this something I pulled from memory, might be wrong. :yep:

[Gerald]

Think the Black Hole name came from the method they use even today to look for them: watching for black areas in space that look 'funky' and see how the planets/stars behave there. If they seem to have irregular paths and go faster at certain points of the path, it's safe to assume there is an Black Hole there that is pulling the planets/stars to such an odd paths. :hmmm:

This of course just my assumption how the name came to be, might be wrong. :yep:

As for knowing about the BH's, I'd say we don't know much, but we can assume a lot. We assume there's an huge mass in the center that pulls nearby objects to it, we also can assume that it is more of an grinder than an bottomless pit as it shoots out particles when it's "consuming" something, as to chew and spit it out again. I'm quite sure I saw/read from somewhere that they have a pretty good idea on how BH's are born too (big star imploding or something like that).

Again, this something I pulled from memory, might be wrong. :yep: This is exactly what my first thoughts respond to what they so-called "black holes" stands for,and as you say we do not know much and what we know is that all goes so fast according to the knowledge we have, which is not even a drop in the ocean,and I think there never can be reached perhaps, in theory.... :hmmm:

[Dowly]

This is exactly what my first thoughts respond to what they so-called "black holes" stands for,and as you say we do not know much and what we know is that all goes so fast according to the knowledge we have, which is not even a drop in the ocean,and I think there never can be reached perhaps, in theory.... :hmmm:

Aye, right you are. I love space, I love watching towards the stars on a dark cloudless sky and try to figure out what the heck all this is. Mind boggling, but cool as hell.

Check this video, it's from the user I posted earlier "Spacerip". Show's some footage of stars/planets orbiting a Black Hole:
http://www.youtube.com/watch?v=QOW-NYPEp84

[Gerald]

Aye, right you are. I love space, I love watching towards the stars on a dark cloudless sky and try to figure out what the heck all this is. Mind boggling, but cool as hell.

Check this video, it's from the user I posted earlier "Spacerip". Show's some footage of stars/planets orbiting a Black Hole:
http://www.youtube.com/watch?v=QOW-NYPEp84 And this shows even more what we're talking about, or what we want to talk about,I like what I see a dark night, look up, so overwhelming and all elusive the purpose of taking advantage of opportunities to experience.

[Aramike]

Detecting them from their Hawking Radiation is another possibility although I'm not sure if that has yet been accomplished.It likely will never be accomplished, as Hawking radiation involves purely theoretical, tiny particles and anti-particles that usually form in empty space and nearly instantaneously annihilate themselves. Hawking radiation involves the standard appearance of such particles at the event horizon of the black hole, except this time gravity pulls in one of the particles allowing the other to escape. The particle pulled in must have negative energy due to the Conservation law, meaning that negative particle would annihilate energy within the black hole, causing it to slowly "evaporate".

The normal annihilation of such virtual particles gives off a minute amount of energy (more precisely, it releases borrowed energy) that CAN be experimentally detected through what is known as the Casimir effect. However, without that annihilation, proving the existance of such particles will likely remain impossible for some time to come.

[The Third Man]

And this shows even more what we're talking about, or what we want to talk about,I like what I see a dark night, look up, so overwhelming and all elusive the purpose of taking advantage of opportunities to experience.

Go up in a small airplane and climb above 5,000' AGL on a clear night and the sky literally explodes with stars.

[Gerald]

Go up in a small airplane and climb above 5,000' AGL on a clear night and the sky literally explodes with stars. certainly not in a small plane,this was with turboprop, and approx. 600 Feet First And Then approx 6000 feet, I agree that it is a fantastic experience,and you really have a beautiful view :yep:

[Dowly]

Go up in a small airplane and climb above 5,000' AGL on a clear night and the sky literally explodes with stars.

You get a pretty good experience by just going somewhere there's no light and looking up, we can see the mMilky Way when we're at our cottage during fall. Awesome stuff. :salute:

[Gerald]

You get a pretty good experience by just going somewhere there's no light and looking up, we can see the mMilky Way when we're at our cottage during fall. Awesome stuff. :salute: True understatement :salute:

[Gerald]

http://design.lbl.gov/education/blackholes/index.html

http://hubblesite.org/explore_astronomy/black_holes/home.html

http://www.newscientist.com/article/dn18498-new-black-hole-simulator-uses-real-star-data.html

[The Third Man]

certainly not in a small plane,this was with turboprop, and approx. 600 Feet First And Then approx 6000 feet, I agree that it is a fantastic experience,and you really have a beautiful view :yep:

I was trying to promote folks to get above the light polution and do it slowly to enhance the experience.