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Dispatches from the birth of the Universe: sometimes science gets lucky - Comments

zengardener's Avatar Comment 1 by zengardener

How does one measure the polarization of gravitons?

Mon, 04 Jun 2012 02:14:11 UTC | #945386

rod-the-farmer's Avatar Comment 2 by rod-the-farmer

Verrry carefully.

Mon, 04 Jun 2012 02:58:29 UTC | #945388

zengardener's Avatar Comment 3 by zengardener

Touche, Rod.

Mon, 04 Jun 2012 04:53:44 UTC | #945400

zombiewoof's Avatar Comment 4 by zombiewoof

Thanks for this, it's fascinating. The older I get the more I'm able to understand and enjoy astronomy. If I'd had a proper education and hadn't spent two decades screwing my head with vodka and hash, I might have had something to offer.

I wish everyone would at least listen to these people.

Mon, 04 Jun 2012 09:16:13 UTC | #945423

neverstopjamin's Avatar Comment 5 by neverstopjamin

Zombiewoof.... Not the same one from crosstown?

Totally agree though.

BACKFROMTHESTORM.

Mon, 04 Jun 2012 10:32:13 UTC | #945439

Alan4discussion's Avatar Comment 6 by Alan4discussion

Mather is now leading the team building the James Webb space telescope, designed to image the formation of the first structures in the Universe, the progeny of the CMB's fluctuations.

We can look forward to further results from this.

Mon, 04 Jun 2012 11:02:06 UTC | #945448

Rawhard Dickins's Avatar Comment 7 by Rawhard Dickins

Noise seen on TV sets is almost entirely dominated by noise generated internally, probably more so on earlier sets. Nowadays you should see or hear a slight difference if you unplug the aerial. This is rather misleading but gets people thinking outside "the box" !

Mon, 04 Jun 2012 11:34:17 UTC | #945453

AlGarnier's Avatar Comment 8 by AlGarnier

The age of the universe, 13-14 billion years, is a least value estimate based on our knowledge of present day physics. It's like trying to guess how long ago a skunk sprayed by estimating the strength of its odor. There are too many unknown factors at play to promote an accurate time frame.  We need to get out there to research and populate the universe. This will be our true immortality. THE FINAL FRONTIER.

Mon, 04 Jun 2012 13:42:24 UTC | #945462

Tyler Durden's Avatar Comment 9 by Tyler Durden

Comment 8 by AlGarnier :

There are too many unknown factors at play to promote an accurate time frame.

How do you know if they are unknown?

Mon, 04 Jun 2012 13:51:11 UTC | #945464

DocWebster's Avatar Comment 10 by DocWebster

Comment 1 by zengardener :

How does one measure the polarization of gravitons?

The end with the little button sticking up is positive.

Mon, 04 Jun 2012 14:48:25 UTC | #945479

Red Dog's Avatar Comment 11 by Red Dog

Comment 4 by zombiewoof :

Thanks for this, it's fascinating. The older I get the more I'm able to understand and enjoy astronomy. If I'd had a proper education and hadn't spent two decades screwing my head with vodka and hash, I might have had something to offer.

I wish everyone would at least listen to these people.

If all you ever did was Vodka and Hash you showed more judgement than some of us. BTW,

Didja ever wake up in the mornin' With a ZOMBY WOOF behind your eyes??

Mon, 04 Jun 2012 15:00:27 UTC | #945483

TeraBrat's Avatar Comment 12 by TeraBrat

CMBR is old stuff.

Mon, 04 Jun 2012 15:59:47 UTC | #945494

Saganic Rites's Avatar Comment 13 by Saganic Rites

Comment 12 by TeraBrat :

CMBR is old stuff.

Dry, so very dry ;-)

Mon, 04 Jun 2012 23:36:26 UTC | #945602

garry burgin's Avatar Comment 14 by garry burgin

The initial universe expanded faster than the speed of light.This caused time to fold back over on itself causing the universe to be circular and not linear.This means the the big bang(or silent expansion as i like to call it)will always elude us.To give it a laymans prospective.Look at the LHC its got a streight bit before it goes into the big round bit.I will try to do a diagram.

                                                              -----
                                                          --           --
                                                       -                  -
                                                         --            --
                                        ---------------+--------

So imagine a circle with a linear line leading to its bottom.The + sign is where the expansion reached light speed and folded back on itself.This is the point we can see back to and no further.OPAQUE PERIOD.This is the point where the universe became circular.There is no before this + point which humans can comprehend.By the way the circle is getting bigger due to the expansion continuing but thats irrelevant.

Thu, 14 Jun 2012 20:05:40 UTC | #947449

Quine's Avatar Comment 15 by Quine

Comment 14 by garry burgin:

This caused time to fold back over on itself causing the universe to be circular and not linear.

?? Huh? What does that even mean?

Got evidence?

Thu, 14 Jun 2012 20:13:26 UTC | #947451

garry burgin's Avatar Comment 16 by garry burgin

The streight bit before the + sign is like a umbilical cord.I breaks off and then the baby universe has to fend for itself.A bit like a orphan.

Thu, 14 Jun 2012 20:13:43 UTC | #947452

garry burgin's Avatar Comment 17 by garry burgin

Quine..Its hard to explain but i will do my best.The universe when it began was a bit like a lazer beam.It eccelerated to the speed of light at which point it mushroomed due to matter gaining infinate mass.DIAGRAM.

                                                                                  +   +                                                                                                    
                                                                               +             +

=========================================== +

                                                                              +             +
                                                                                    +   +

this is when the universe folded back in on itself making the universe 3 dimensional as we comprehend it today while at the same time eliminating its beginings from our 3 dimensional comprehension.

Thu, 14 Jun 2012 20:26:50 UTC | #947454

ZenDruid's Avatar Comment 18 by ZenDruid

Garry, you got it backwards. LHC-driven particles accrue their energy in the round bit and then shoot away in the straight bit.

Thu, 14 Jun 2012 20:27:42 UTC | #947456

garry burgin's Avatar Comment 19 by garry burgin

ZenDruid.I was talking about the bit at the begining where hydrogen atoms without electrons are injected into the accelerator.Is it called a injector?

Thu, 14 Jun 2012 20:32:52 UTC | #947458

garry burgin's Avatar Comment 20 by garry burgin

Anyway back to the subject in hand.Has the thought occured to anyone that the visable part of the universe is already travelling at the speed of light or close to it.From earths point of view the visable universe is expanding ever faster away from us .Is the visable universe all that there is.The blackness of the unseen univerese is where it has already exceded the speed of light and is no longer visable.Forgive my spelling mistakes im a gas fitter from england with a Thatchers 80,s schooling.

Thu, 14 Jun 2012 20:45:16 UTC | #947460

ZenDruid's Avatar Comment 21 by ZenDruid

I don't think the ionization and beam collimation stages lend much energy to the injected nuclei. It's the ring that accelerates them to the desired energy level.

Thu, 14 Jun 2012 20:48:34 UTC | #947461

garry burgin's Avatar Comment 22 by garry burgin

ZenDruid......Do you mind?...I was trying to put it into laymans terms.I was looking for a shape not a function.Do you agree that a particle accelerator has a streight bit leading into a circle?...

Thu, 14 Jun 2012 20:58:32 UTC | #947462

garry burgin's Avatar Comment 23 by garry burgin

Anyway.In the begining matter was eccelerated to the speed of light and travelled back in time meeting itself giving the universe more mass.This continued untill the gravity of the mass was strong enought to outweigh the acceleration of the expansion of the universe.This is when proto stars where formed out of condenced hydrogen which was in turn formed from proto matter created by universal folding.The universe is still expanding many times faster than C but matter now doesnt give a monkey,s cos its got mass.I think a big rip is more plausable than a big chill.

Thu, 14 Jun 2012 21:14:53 UTC | #947467