|
||||||||
Space and Astronomy Thread |
![]() |
|
|
Thread Tools | Search this Thread |
|
|
#3026 |
|
Forum Member
Join Date: Oct 2013
Posts: 3,997
|
I wonder whether there is any directional information in the data so that optical telescopes could then be pointed at the source. There are also various detectors of high energy cosmic rays round the planet. I imagine that if two black holes collapse into one another, thought to be the possible source of these gravitational waves, then some fairly beefy comics with be emitted. Neutrinos too coming to think of it.
|
|
|
|
|
Please sign in or register to remove this advertisement.
|
|
|
#3027 |
|
Forum Member
Join Date: May 2004
Location: Storbritannia
Posts: 28,927
|
Quote:
Definitely a Nobel prize for the team... fabulous to finally get experimental evidence for this and now the door will be open to even more research.
There are a couple of interesting articles below: Einstein's gravitational waves 'seen' from black holes Gravitational waves: A triumph for big science The two highly sensitive LIGO detectors at opposite ends of the continental United States will be joined by an equally sensitive Advanced Virgo detector based in Italy which should start operating from 2017 onwards. |
|
|
|
|
|
#3028 |
|
Forum Member
Join Date: Feb 2003
Location: Hampshire
Posts: 2,090
|
PBS Space Time channel summary video on today's announcement: https://youtu.be/gw-i_VKd6Wo
Related earlier video: https://youtu.be/1Tstyqz2g7o |
|
|
|
|
|
#3029 |
|
Forum Member
Join Date: Mar 2014
Posts: 1,549
|
Really is a monumental achievement. Congratulations to the LIGO team.
I thought for sure Keyser_Soze1 would be the one to jump on this first. For shame, for shame, you're slipping Keyser.
|
|
|
|
|
|
#3030 |
|
Forum Member
Join Date: Sep 2011
Posts: 10,236
|
Quote:
I wonder whether there is any directional information in the data so that optical telescopes could then be pointed at the source. There are also various detectors of high energy cosmic rays round the planet. I imagine that if two black holes collapse into one another, thought to be the possible source of these gravitational waves, then some fairly beefy comics with be emitted. Neutrinos too coming to think of it.
![]() I'm also delighted by LIGO's success, especially considering that we're a two-legged species. Go bipeds!
|
|
|
|
|
|
#3031 |
|
Forum Member
Join Date: Oct 2013
Posts: 3,997
|
Chuckle. Sorry: "cosmic rays".
|
|
|
|
|
|
#3032 |
|
Forum Member
Join Date: Feb 2014
Location: The Sixth Circle of Hell
Posts: 20,185
|
Quote:
Really is a monumental achievement. Congratulations to the LIGO team.
I thought for sure Keyser_Soze1 would be the one to jump on this first. For shame, for shame, you're slipping Keyser. ![]() ![]() To make up for my tardniness here are a few links. ![]() http://news.nationalgeographic.com/2...etime-science/ http://news.discovery.com/space/gala...ime-160211.htm http://news.discovery.com/space/dark...rth-160211.htm http://www.wired.com/2016/02/scienti...-the-universe/ http://www.livescience.com/53683-gra...ifference.html http://www.livescience.com/53684-gra...ves-found.html http://www.livescience.com/53693-ima...le-merger.html http://www.livescience.com/53694-sou...ack-holes.html |
|
|
|
|
|
#3033 |
|
Forum Member
Join Date: Sep 2011
Posts: 10,236
|
Has there been any response from the ELISA* team? I wonder how it affects their schedule, and when we might expect an all-sky gravitational-wave survey. The thought of peering behind the CMB makes me go
.(*I've only just found out that she's changed her name! )
|
|
|
|
|
|
#3035 |
|
Forum Member
Join Date: Mar 2014
Posts: 1,549
|
Quote:
I am indeed!
![]() To make up for my tardniness here are a few links. ![]() http://news.nationalgeographic.com/2...etime-science/ http://news.discovery.com/space/gala...ime-160211.htm http://news.discovery.com/space/dark...rth-160211.htm http://www.wired.com/2016/02/scienti...-the-universe/ http://www.livescience.com/53683-gra...ifference.html http://www.livescience.com/53684-gra...ves-found.html http://www.livescience.com/53693-ima...le-merger.html http://www.livescience.com/53694-sou...ack-holes.html What future implications does everyone think this discovery will have? New planetary discoveries? New technologies invented? I know that they held off on any announcements before publishing their findings to make sure that it will hopefully hold up to the numerous peer reviews. |
|
|
|
|
|
#3036 |
|
Forum Member
Join Date: Nov 2002
Posts: 76,816
|
Quote:
Good Job, that's the Keyser we know.
What future implications does everyone think this discovery will have? New planetary discoveries? New technologies invented? I know that they held off on any announcements before publishing their findings to make sure that it will hopefully hold up to the numerous peer reviews. I can't see it having any implications on Earth or in discoveries at the scale of planets. I suppose it's more akin to the discovery around 1920 that light was bent by passing near huge mass objects like stars. It didn't lead to lots of gravitational light bending technology |
|
|
|
|
|
#3037 |
|
Inactive Member
Join Date: Jun 2010
Posts: 4,159
|
Quote:
It's difficult to see any practical implications.......it'll open another window on the universe but only to look for extreme events.
I can't see it having any implications on Earth or in discoveries at the scale of planets. I suppose it's more akin to the discovery around 1920 that light was bent by passing near huge mass objects like stars. It didn't lead to lots of gravitational light bending technology I get the impression they are just trying to sound clever, but that's surely not the case. Not being particularly familiar with Einstein's theories myself and unsure what effect our awareness of these gravitational noises will have for us here on Earth, I am not that excited myself. Well done to the scientists though. |
|
|
|
|
|
#3038 |
|
Forum Member
Join Date: May 2011
Location: Schar's World
Posts: 473
|
Quote:
It's difficult to see any practical implications.......it'll open another window on the universe but only to look for extreme events.
I can't see it having any implications on Earth or in discoveries at the scale of planets. I suppose it's more akin to the discovery around 1920 that light was bent by passing near huge mass objects like stars. It didn't lead to lots of gravitational light bending technology |
|
|
|
|
|
#3039 |
|
Forum Member
Join Date: Dec 2004
Posts: 21,645
|
Quote:
It's difficult to see any practical implications.......it'll open another window on the universe but only to look for extreme events.
I can't see it having any implications on Earth or in discoveries at the scale of planets. There are already upgrades to the detector sensitivity planned, and space-based detectors will be even more sensitive, so the range of astronomical events that can be observed gravitationally will increase. And the engineering that had to be developed is pretty impressive, so there may be some "practical" spin-offs from that. |
|
|
|
|
|
#3040 |
|
Forum Member
Join Date: Mar 2014
Posts: 1,549
|
I like this explanation.
"It's like looking at the universe with new eyes — the amount of information that's there is going to be amazing," says Mina Arvanitaki "Teukolsky says the discovery shows just how extraordinary the natural world can be. "The universe is stranger than any kind of fiction we could imagine," he says. "I mean, it's preposterous." http://www.npr.org/sections/thetwo-w...-holes-collide Here is a plethora of articles and videos about the Gravity Waves and LIGO. http://www.space.com/31894-gravitati...-coverage.html |
|
|
|
|
|
#3041 |
|
Forum Member
Join Date: May 2009
Location: Devon
Posts: 12,838
|
Has the Pope commented yet?
|
|
|
|
|
|
#3042 |
|
Forum Member
Join Date: Sep 2011
Posts: 10,236
|
Quote:
Good Job, that's the Keyser we know.
What future implications does everyone think this discovery will have? New planetary discoveries? New technologies invented? I know that they held off on any announcements before publishing their findings to make sure that it will hopefully hold up to the numerous peer reviews.
|
|
|
|
|
|
#3043 |
|
Forum Member
Join Date: Mar 2014
Posts: 1,549
|
Quote:
It's unlikely that this announcement will lead to new technologies, we've only really confirmed what we thought we knew - that gravitational waves exist. This announcement will no doubt lead to increased funding for similar projects. One thing it might make possible is to 'see' beyond the surface of last scattering, looking back to when the Universe was still opaque to electromagnetic waves. We might glimpse the precursors to the ripples in the Cosmic Microwave Background, and put the Big Bang Theory to the test.
![]() |
|
|
|
|
|
#3044 |
|
Forum Member
Join Date: Aug 2015
Posts: 2,055
|
Quote:
It's unlikely that this announcement will lead to new technologies, we've only really confirmed what we thought we knew - that gravitational waves exist. This announcement will no doubt lead to increased funding for similar projects. One thing it might make possible is to 'see' beyond the surface of last scattering, looking back to when the Universe was still opaque to electromagnetic waves. We might glimpse the precursors to the ripples in the Cosmic Microwave Background, and put the Big Bang Theory to the test.
![]() |
|
|
|
|
|
#3045 |
|
Forum Member
Join Date: Dec 2004
Posts: 21,645
|
Quote:
I thought that there was no "theoretical" explanation to the Big Bang - that it was just an ad hoc explanation thrown in to explain how the universe went from very small (pin head sized) to very big - very quickly. Something to do with a "phase" change of matter (?).
|
|
|
|
|
|
#3046 |
|
Forum Member
Join Date: Mar 2014
Posts: 1,549
|
Off topic: It is very hard to build actual space crafts that would hold up to all the complications faced in space, but I was just thinking off hand if there was a possible way to get a nuclear sub to space how well could it possibly survive? It's nuclear powered so it has a long term power supply, they have air re-breathers than scrub oxygen to breath, their ballasts could be filled with water to protect against radiation, and most importantly it would look REALLY cool.
I know its a stupid question but technically it seems to have all the tools for success. |
|
|
|
|
|
#3047 |
|
Forum Member
Join Date: Dec 2004
Posts: 21,645
|
Quote:
Off topic: It is very hard to build actual space crafts that would hold up to all the complications faced in space, but I was just thinking off hand if there was a possible way to get a nuclear sub to space how well could it possibly survive? It's nuclear powered so it has a long term power supply, they have air re-breathers than scrub oxygen to breath, their ballasts could be filled with water to protect against radiation, and most importantly it would look REALLY cool.
I know its a stupid question but technically it seems to have all the tools for success. |
|
|
|
|
|
#3048 |
|
Forum Member
Join Date: Mar 2014
Posts: 1,549
|
Quote:
I'm not sure it would survive very well at all. One obvious problem is that a submarine hull is designed to handle pressures that are higher on the outside than on the inside. In space, it's the other way round. And the air scrubbers on a submarine are to remove excess CO2 - the oxygen comes from electrolysing sea water. That might be a problem in space.
![]() Edit: Proof http://www.popsci.com/sites/popsci.c...?itok=2jrKloIL https://s-media-cache-ak0.pinimg.com...d16d9a24f9.jpg http://www.wallpaperup.com/133494/Te...submarine.html |
|
|
|
|
|
#3049 |
|
Forum Member
Join Date: Sep 2011
Posts: 10,236
|
Quote:
Okay you can throw all the technical stuff at it all you want but you can't deny it would be pretty bad ass. That good sir is irrefutable.
![]() Edit: Proof http://www.popsci.com/sites/popsci.c...?itok=2jrKloIL https://s-media-cache-ak0.pinimg.com...d16d9a24f9.jpg http://www.wallpaperup.com/133494/Te...submarine.html |
|
|
|
|
|
#3050 |
|
Forum Member
Join Date: Mar 2003
Location: East London
Posts: 25,846
|
Sorry, the Daily Mail says otherwise - http://www.dailymail.co.uk/sciencete...s-nothing.html (Article & comments are hilarious) Quote:
Has the Pope commented yet?
|
|
|
|
![]() |
|
All times are GMT. The time now is 03:41.





.
)