And speaking of levels of heaven
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And speaking of levels of heaven
 
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Here's a nice, long glimpse back towards our beginnings. *Much* further back than 6.000 years ago, I might add. All the way back to when our observable universe was a mere 2 billion hears old. You should pull down the image & stare at all the galaxy dots for a minute or two. It's good for the soul...
http://www.eso.org/public/outreach/press-rel/pr-2008/pr-39-08.html My favorite photo in this class, however, is still the Hubble ultra-deep field, in visible light looking back about 13 billion years: http://en.wikipedia.org/wiki/Hubble_Ultra_Deep_Field --Doug ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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Doug,
May I boast for a minute that my wife,
retired from NASA, worked on the HUBBLE and WMAPS. The deep field
picture and many other Hubble pics were made possible by her group. She was an
analyst and programmer in those projects. A number of those pics, such as
the deep field one, are in the book we spoke of in our e-mail exchange.I am
moved, as you are, by those pictures.
Jack.
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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Hi, Jack.
If I had it to do all over again I would quite possibly work in the field of cosmology in one regard or another. I'm envious of those who do work in cosmology-related fields.. At last year's SuperComputing conference I had the privilege of meeting George Smoot, Noble prize winner for physics in 2006. A small group of 5 of us sat at the Berkeley booth one afternoon and he talked with us about cosmology for over an hour. --Doug On Sun, Nov 9, 2008 at 7:14 PM, Jack Leibowitz <[hidden email]> wrote:
-- Doug Roberts, RTI International [hidden email] [hidden email] 505-455-7333 - Office 505-670-8195 - Cell ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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Hi, Doug,
When i was making a such a decision, cosmology
wasn't the field it is now. Modern technology has in the last 20 years (more?)
made it the science it is today While speculative extrapolation goes on, as
expected, the field was all spculation once upon a time not awfully long
ago.
Best,
Jack
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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In reply to this post by Douglas Roberts-2
Check out galaxyzoo.org - they need volunteers and you can carry out the work (categorizing galaxies) from the comfort of your sofa. And it's actual significant research that you'd be contributing to - they've already got the largest and most reliable galaxy catalogue, and it's all from volunteer efforts.
Robert
On Mon, Nov 10, 2008 at 12:01 AM, Douglas Roberts <[hidden email]> wrote: Hi, Jack. ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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I'd love to do a cosmology read sometime. Is there a particularly
good book in the field that is reasonably formal yet not overwhelming? One question I've always had with cosmology and the time to the big bang is that does not seem to be relativistic effects taken into account the time extrapolation. Certainly its been done but not mentioned in the popular books. -- Owen On Nov 10, 2008, at 7:59 AM, Robert Holmes wrote: > Check out galaxyzoo.org - they need volunteers and you can carry out > the > work (categorizing galaxies) from the comfort of your sofa. And it's > actual > significant research that you'd be contributing to - they've already > got the > largest and most reliable galaxy catalogue, and it's all from > volunteer > efforts. > Robert > > On Mon, Nov 10, 2008 at 12:01 AM, Douglas Roberts <[hidden email] > >wrote: > >> Hi, Jack. >> >> If I had it to do all over again I would quite possibly work in the >> field >> of cosmology in one regard or another. I'm envious of those who do >> work in >> cosmology-related fields.. >> >> At last year's SuperComputing conference I had the privilege of >> meeting >> George Smoot, Noble prize winner for physics in 2006. A small >> group of 5 of >> us sat at the Berkeley booth one afternoon and he talked with us >> about >> cosmology for over an hour. >> >> --Doug >> >> >> >> > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > lectures, archives, unsubscribe, maps at http://www.friam.org ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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Oops -- I miss-edited -- should read:
One question I've always had with cosmology is that the time calculated to the big bang (via backwards extrapolation) does not seem to take relativistic effects into account. Certainly its been done but not mentioned in the popular books. -- Owen On Nov 10, 2008, at 10:02 AM, Owen Densmore wrote: > I'd love to do a cosmology read sometime. Is there a particularly > good book in the field that is reasonably formal yet not overwhelming? > > One question I've always had with cosmology and the time to the big > bang is that does not seem to be relativistic effects taken into > account the time extrapolation. Certainly its been done but not > mentioned in the popular books. > > -- Owen > > > On Nov 10, 2008, at 7:59 AM, Robert Holmes wrote: > >> Check out galaxyzoo.org - they need volunteers and you can carry >> out the >> work (categorizing galaxies) from the comfort of your sofa. And >> it's actual >> significant research that you'd be contributing to - they've >> already got the >> largest and most reliable galaxy catalogue, and it's all from >> volunteer >> efforts. >> Robert >> >> On Mon, Nov 10, 2008 at 12:01 AM, Douglas Roberts <[hidden email] >> >wrote: >> >>> Hi, Jack. >>> >>> If I had it to do all over again I would quite possibly work in >>> the field >>> of cosmology in one regard or another. I'm envious of those who >>> do work in >>> cosmology-related fields.. >>> >>> At last year's SuperComputing conference I had the privilege of >>> meeting >>> George Smoot, Noble prize winner for physics in 2006. A small >>> group of 5 of >>> us sat at the Berkeley booth one afternoon and he talked with us >>> about >>> cosmology for over an hour. >>> >>> --Doug >>> >>> >>> >>> >> ============================================================ >> FRIAM Applied Complexity Group listserv >> Meets Fridays 9a-11:30 at cafe at St. John's College >> lectures, archives, unsubscribe, maps at http://www.friam.org > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > lectures, archives, unsubscribe, maps at http://www.friam.org ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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Owen, two suggestions:
1) Stephen Weinberg's "The First Three Minutes", and 2) George Smoot's "Wrinkles in Time" --Doug On Mon, Nov 10, 2008 at 10:22 AM, Owen Densmore <[hidden email]> wrote: Oops -- I miss-edited -- should read: ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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In reply to this post by Douglas Roberts-2
Hello, All,
Just to be clear George is not Oliver - Although Smoot attended MIT, he was not the same Smoot who was laid end to end to measure the Harvard Bridge between Cambridge and Boston; this was his cousin Oliver R. Smoot, an MIT alumnus who served as the chairman of the American National Standards Institute.
Scott Powell, creeping back into his Liberal Arts den
On Mon, Nov 10, 2008 at 12:01 AM, Douglas Roberts <[hidden email]> wrote: Hi, Jack. ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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In reply to this post by Douglas Roberts-2
On Nov 10, 2008, at 10:46 AM, Douglas Roberts wrote:
> Owen, two suggestions: > > 1) Stephen Weinberg's "The First Three Minutes", and > 2) George Smoot's "Wrinkles in Time" > > --Doug Oddly enough, I've read both! I didn't connect Smoot with the Nobel, thanks! I was amazed at his tenacity, patiently overcoming constant, huge problems. And Weinberg's book is an absolute gem as well; beautifully crafted and wonderfully mature. I only wish it had been written after the expansionary universe discoveries. But as far as I can recall, neither book wrestled with the problem of "time" in the early universe. We know both velocity and gravity/mass distorts time. The description of time to the beginning of the universe uses linear extrapolation as far as I can tell. This seems at odds with relativity. Possibly it is not an issue within cosmology because it is, after all, the entire universe that is expanding, thus observational problems cancel out, so to speak? -- Owen > On Mon, Nov 10, 2008 at 10:22 AM, Owen Densmore > <[hidden email]> wrote: > >> Oops -- I miss-edited -- should read: >> One question I've always had with cosmology is that the time >> calculated to >> the big bang (via backwards extrapolation) does not seem to take >> relativistic effects into account. Certainly its been done but not >> mentioned in the popular books. >> >> -- Owen >> ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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Administrator
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Damn. s/expanson/inflation/ below re: Weinberg.
-- Owen On Nov 10, 2008, at 11:09 AM, Owen Densmore wrote: > On Nov 10, 2008, at 10:46 AM, Douglas Roberts wrote: > >> Owen, two suggestions: >> >> 1) Stephen Weinberg's "The First Three Minutes", and >> 2) George Smoot's "Wrinkles in Time" >> >> --Doug > > Oddly enough, I've read both! I didn't connect Smoot with the > Nobel, thanks! I was amazed at his tenacity, patiently overcoming > constant, huge problems. > > And Weinberg's book is an absolute gem as well; beautifully crafted > and wonderfully mature. I only wish it had been written after the > expansionary universe discoveries. > > But as far as I can recall, neither book wrestled with the problem > of "time" in the early universe. We know both velocity and gravity/ > mass distorts time. The description of time to the beginning of the > universe uses linear extrapolation as far as I can tell. This seems > at odds with relativity. > > Possibly it is not an issue within cosmology because it is, after > all, the entire universe that is expanding, thus observational > problems cancel out, so to speak? > > -- Owen > >> On Mon, Nov 10, 2008 at 10:22 AM, Owen Densmore >> <[hidden email]> wrote: >> >>> Oops -- I miss-edited -- should read: >>> One question I've always had with cosmology is that the time >>> calculated to >>> the big bang (via backwards extrapolation) does not seem to take >>> relativistic effects into account. Certainly its been done but not >>> mentioned in the popular books. >>> >>> -- Owen >>> > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > lectures, archives, unsubscribe, maps at http://www.friam.org ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
Re: And speaking of levels of heaven
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In reply to this post by Owen Densmore
A few years ago I had an email exchange with Weinberg in which I asked him if he planned to write a second edition of the "The First Three Minutes" where he might address some of the new observational data that has been published since the first edition was released, such as the sudden (cosmologically speaking) apparent acceleration in the rate of expansion of the universe, dark matter, dark energy, Smoot's COBE findings, etc.
Unfortunately, Weinberg said that he had no such plans. I did greatly enjoy talking with Smoot on these topics last year, though. --Doug On Mon, Nov 10, 2008 at 11:09 AM, Owen Densmore <[hidden email]> wrote:
-- Doug Roberts, RTI International [hidden email] [hidden email] 505-455-7333 - Office 505-670-8195 - Cell ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org |
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