mental invalid Posted November 14, 2003 Share Posted November 14, 2003 (it's supah cool) http://micro.magnet.fsu.edu/primer/java/sc...of10/index.html Link to comment Share on other sites More sharing options...
Guest imported_El Mamerro Posted November 14, 2003 Share Posted November 14, 2003 Have you ever seen the film? soooo slick and seamless. The Eames crush shit. What ever happened to the Superstring Theory thread? That should be up for a well-deserved bump soon. Link to comment Share on other sites More sharing options...
$360 Posted November 14, 2003 Share Posted November 14, 2003 good stuff. anyone see that eclipse the other night? Link to comment Share on other sites More sharing options...
Dirty_habiT Posted November 14, 2003 Share Posted November 14, 2003 Mental, you're in space.:lick: what's the deal with some horoscopes? Link to comment Share on other sites More sharing options...
mental invalid Posted November 14, 2003 Author Share Posted November 14, 2003 i knew mams would be the first to respond... mams...remember that shit....that thread was great.... read any laymen books about space that you could recommend....no not A New Science...its still breaking my book shelf... ive never seen the movie at all...but ill look for it... yeah i saw the eclipse....shit like that is just amazing.... roe, casting cosmic shadows... Link to comment Share on other sites More sharing options...
mental invalid Posted November 14, 2003 Author Share Posted November 14, 2003 "Mental, you're in space" "looking at stars" homie.....:dazed: Link to comment Share on other sites More sharing options...
swiss cheese Posted November 14, 2003 Share Posted November 14, 2003 AMAZING. Link to comment Share on other sites More sharing options...
!@#$% Posted November 14, 2003 Share Posted November 14, 2003 i'm a total science geek. the Leonids are happening this month too. hopefully they'll be nice. i saw it a few years ago, it was totally amazing...i saw so many shooting stars that night, i've got wishes for decades.. i have considered going back to school to secure a physics degree.. there have been some new postulations about the 'shape' of the universe (which totally confounds me that something infinite can have a shape)..and now they are thinking dodecahedrals.. pentagon shit. crazy. Link to comment Share on other sites More sharing options...
Guest imported_Tesseract Posted November 14, 2003 Share Posted November 14, 2003 They call me Tesseract. I'd bump my thread on this but the images and video are redxed. Good find roe Link to comment Share on other sites More sharing options...
mental invalid Posted November 14, 2003 Author Share Posted November 14, 2003 "the Leonids are happening this month too. ' can you explain that.... yeah i heard that about finite infinite....almost gave me an acid flashback... Link to comment Share on other sites More sharing options...
swiss cheese Posted November 14, 2003 Share Posted November 14, 2003 (which totally confounds me that something infinite can have a shape) TO us it's infinite, but not really. It's constantly expanding so it can't be actually "infinite". Link to comment Share on other sites More sharing options...
!@#$% Posted November 14, 2003 Share Posted November 14, 2003 Leonids Meteor Shower http://science.nasa.gov/headlines/y2003/10...ubleleonids.htm October 10, 2003: The Leonid meteor shower is coming. Twice. Bill Cooke of the Space Environments Group at the NASA Marshall Space Flight Center explains: "Normally there's just one Leonid meteor shower each year, but this year we're going to have two: one on Nov. 13th and another on Nov. 19th." Both are caused by comet Tempel-Tuttle, which swings through the inner solar system every 33 years. With each visit the comet leaves behind a trail of dusty debris--the stuff of meteor showers. Lots of the comet's old dusty trails litter the mid-November part of Earth's orbit. "Our planet glides through the debris zone every year," says Cooke. "It's like a minefield. Sometimes we hit a dust trail, sometimes we don't." Direct hits can spark a meteor storm, which is defined as more than 1000 shooting stars per hour. "That's what happened in, for example, 1966 and 2001," says Cooke. "Those were great years for Leonids." "This year we're going to brush past two of the trails--no direct hits," he says. Even so, "we might have a nice display." The first shower is expected on Nov. 13th around 17:17 UT. For about three hours centered on that time Earth will be close to some dust shed by Tempel-Tuttle in the year 1499. Sky watchers in Alaska, Hawaii and along the Pacific rim of Asia are favored. They'll see anywhere from a few to 40 meteors per hour--"if they can avoid the glare from that night's gibbous Moon," cautions Cooke. A good strategy for moonlit meteor observing: travel to high altitudes where the air is clear or stand in the shade of a tall building or hillside. oops. i guess i missed the first one. but i saw it in 01 when i was painting a beauty of a spot. what a night! http://science.nasa.gov/headlines/y2003/images/doubleleonids/japan1.jpg'> Link to comment Share on other sites More sharing options...
OPEN_PIEHOLE Posted November 14, 2003 Share Posted November 14, 2003 nizzies? wiggers suck!! Link to comment Share on other sites More sharing options...
!@#$% Posted November 14, 2003 Share Posted November 14, 2003 Maximum number of Leonids in 15 min. New York, NY 2:30 a.m. (Nov. 19th) 17 Miami, FL 2:30 a.m. (Nov. 19th) 14 Chicago, IL 1:30 a.m. (Nov. 19th) 13 Dallas, TX 1:45 a.m. (Nov. 19th) 9 Denver, CO 0:45 a.m. (Nov. 19th) 7 Los Angeles, CA 0:00 a.m. (Nov. 19th) 3 Caracas, Venezuela 3:30 a.m. (Nov. 19th) 17 San Juan, Puerto Rico 3:30 a.m. (Nov. 19th) 18 London, England 5:45 a.m. (Nov. 19th) 7 Paris, France 6:30 a.m. (Nov. 19th) 6 Link to comment Share on other sites More sharing options...
Guest imported_Tesseract Posted November 14, 2003 Share Posted November 14, 2003 its an american thing.... Link to comment Share on other sites More sharing options...
CinchedWaist Posted November 14, 2003 Share Posted November 14, 2003 I feel so.....small after watching that. I'm in a Physics class this semester. It is sooooo damn interesting. Link to comment Share on other sites More sharing options...
Guest TEARZ Posted November 14, 2003 Share Posted November 14, 2003 space is the place (check the reference) Link to comment Share on other sites More sharing options...
!@#$% Posted November 14, 2003 Share Posted November 14, 2003 Originally posted by Tesseract its an american thing.... huh? i gave some euro times bud.:o Link to comment Share on other sites More sharing options...
swiss cheese Posted November 14, 2003 Share Posted November 14, 2003 I believe he's refering to the "NIZZIE" Part. I believe Invalid was kidding around. Don't be so serious (to open piehole). Link to comment Share on other sites More sharing options...
Daze One Million Posted November 14, 2003 Share Posted November 14, 2003 some scientists did some expirement, i dont really recall but allthough the evidence is inconclusive, the facts gathered pointed towards a finite universe, and to go along with the dodecahedral model, its said that the universe is like one gigantic soccer ball Link to comment Share on other sites More sharing options...
mental invalid Posted November 14, 2003 Author Share Posted November 14, 2003 "I feel so.....small after watching that. " -CW yeah, but in the same regard, i cant help think that im still as huge as the biggest universe or as samll as the smallest atom, when it comes to the interwoveness of everything.....no im not a hippie jackasses... there is a slide in there that almost looks like the first one, but its when it drop into the nanos....i dont think its a coincedence... Link to comment Share on other sites More sharing options...
swiss cheese Posted November 14, 2003 Share Posted November 14, 2003 some scientists did some expirement, i dont really recall but allthough the evidence is inconclusive, the facts gathered pointed towards a finite universe, and to go along with the dodecahedral model, its said that the universe is like one gigantic soccer ball Now that doesn't make much sense. If it's "infinite" how is it shaped like a soccer ball, and how is it constantly expanding (from the point of the initial "big bang")? Maybe we should define "infinite" here. Can you link me to these scientists and their experiments? Link to comment Share on other sites More sharing options...
mental invalid Posted November 14, 2003 Author Share Posted November 14, 2003 you know why it doesnt make sense swiss.. language... i think physics and poetry are soon going to meet at the crossroads... Link to comment Share on other sites More sharing options...
oner Posted November 14, 2003 Share Posted November 14, 2003 Originally posted by TEARZ space is the place (check the reference) Craw? If so, holy shit. Link to comment Share on other sites More sharing options...
Daze One Million Posted November 14, 2003 Share Posted November 14, 2003 Originally posted by swiss cheese Now that doesn't make much sense. If it's "infinite" how is it shaped like a soccer ball, and how is it constantly expanding (from the point of the initial "big bang")? Maybe we should define "infinite" here. Can you link me to these scientists and their experiments? exactly, its not infitite but "FINITE" there is a difference, i will post up the article but ill have to do a search for it Link to comment Share on other sites More sharing options...
swiss cheese Posted November 14, 2003 Share Posted November 14, 2003 oh oh ooooh! I read an "I" in front of "finite". My bad! Makes sense now. Link to comment Share on other sites More sharing options...
Daze One Million Posted November 14, 2003 Share Posted November 14, 2003 i figured as much :cool: Link to comment Share on other sites More sharing options...
!@#$% Posted November 14, 2003 Share Posted November 14, 2003 from october 9 Nature mag Cosmology: The shape of the Universe GEORGE F. R. ELLIS George F. R. Ellis is in the Department of Mathematics, University of Cape Town, Rondebosch 7700, Cape Town, South Africa. e-mail: ellis@maths.uct.ac.za An analysis of astronomical data suggests not only that the Universe is finite, but also that it has a specific, rather rigid topology. If confirmed, this is a major discovery about the nature of the Universe. What shape is space? On page 593 of this issue, Luminet et al.1 suggest that the topology of the Universe may be a 'Poincaré dodecahedral space' — as illustrated on this week's cover. And this is no idle abstraction: Luminet et al. show that this topology, unlike many others, is supported by data from NASA's Wilkinson Microwave Anisotropy Probe (WMAP), published earlier this year2. In thinking about the large-scale shape of the Universe, three interlinked questions must be confronted. First, what is its spatial curvature? There are three possible answers. Three-dimensional sections of space-time may be 'flat' — in such space sections, parallel lines stay the same distance apart and never meet (as in Euclidean space). Or the space sections may be 'negatively curved', such that parallel lines diverge from one another and never meet (the three-dimensional analogue of a Lobachevsky space). Finally, they may be 'positively curved', such that parallel lines converge and eventually intersect (the three-dimensional analogue of the surface of a sphere). The particular case that exists depends on how well the amount of matter in the Universe, coupled with the driving force of dark energy, balances the Universe's kinetic energy of expansion. This is usually expressed in terms of the normalized density parameter Omega0, which is unity for flat space sections; for positive spatial curvature, Omega0 is greater than one. The second question is whether the Universe is 'open' or 'closed' — that is, is it spatially infinite, containing an infinite amount of matter, or is it spatially finite, containing a finite amount of matter? Positively curved space sections are necessarily closed, but the converse does not necessarily follow: both flat and negatively curved space sections can be finite if their connectivity is more complicated than in Euclidean space, meaning that their topology is quite unusual3, 4 (for example, in a flat toroidal space, as you exit right you enter left, and space is finite). So the third issue is, what is the large-scale topology of the Universe? It is worth noting that none of these features is determined by the Einstein gravitational field equations, which are differential equations that govern local, rather than global, properties of space-time5. Topology and curvature seem to be fixed by the initial conditions at the start of the Universe that have since determined its dynamical evolution. To investigate the topology and curvature of the Universe, we must use astronomical observations; from observed values of the energy densities and the expansion rate in the Universe, the curvature can be deduced using Einstein's field equations. If the Universe is closed, and has a small enough diameter, we may be able to see right round it because photons can traverse the whole Universe — Luminet et al.1 illustrate this point well with the image of an insect crawling around the surface of a cylinder (Fig. 2 on page 593). If this is so, we may be able to identify multiple images of the same structure but in different directions in the sky4, 6, or see an effect on the statistics of clustering of galaxies4. Furthermore, the existence of such a 'small universe' should be detectable through its influence on that Rosetta Stone of present-day cosmology, the cosmic microwave background (CMB) radiation7, 8. The CMB is the relic radiation of the Big Bang, and the very slight changes in its temperature across the sky record the density fluctuations that existed at a certain point in the early history of the Universe. Data on these anisotropies2, 9 from WMAP and other sources suggest that the density parameter Omega0 has the value 1.02 0.02. This is compatible with flat space sections. Further data might move the value of Omega0 towards or even below unity. But taking the present data at their face value, the conclusion is that the Universe is spatially closed and hence has finite space sections. This tentatively answers two of the three questions mentioned above. But there is a further intriguing feature in the data. The so-called power spectrum of anisotropies (Fig. 1) shows a distinctive set of peaks when the anisotropy is compared between regions of sky separated by small angles. But on large angular scales (for regions typically more than 60° apart), there is a strange loss of power that does not fit with the expectations of standard cosmological models (in particular, there is less power in the quadrupole than expected). Some have proposed that this can be attributed to as yet undiscovered laws of physics at work in the early Universe10. Luminet et al.1, however, suggest it is because we live in a universe with positively curved space sections and non-standard topology. The smaller-than-usual diameter of the Universe means that there is a maximum length scale that fits into it — and consequently there is a loss of power in the CMB spectrum on scales that are larger than this maximum7. The authors propose that the spatial sections of the Universe are dodecahedral sections of a space of positive curvature, fitted together to make finite three-dimensional spaces. This topology accounts for the WMAP data better than do standard models1. Can this proposal be confirmed? Yes indeed. First, Luminet and colleagues' model suggests that Omega0 = 1.013, and future observations will produce data that should pin down the value of Omega0 to this level of accuracy (the current value from WMAP is accurate only to 2%). Second, a remarkable paper by Cornish et al.11 showed that, however complex the spatial topology, in a small universe there will be circles of identical temperature fluctuations in the CMB sky that could be identified from data on the CMB anisotropies. Luminet et al. determine what those circles would be in their model. Future analyses of WMAP data — and of data from its successor, the Planck satellite, to be launched in 2007 — should be able to verify whether the circles are there or not. In many models of the Universe, it is assumed that spatial homogeneity extends outside our visual horizon for ever. However, in the case of chaotic inflation12, 13 — a variant of the inflationary model for an exponential expansion that occurred in the wake of the Big Bang — the Universe is very inhomogeneous on scales much larger than we can observe, and we are in one expanding bubble in the middle of innumerable other, similar ones. But if Luminet et al. are correct, chaotic inflation is ruled out: there is only one expanding universe bubble, and we can see almost all the way round it. In 1917, Einstein14 proposed that spatially closed universes are advantageous because that would remove the problem of boundary conditions at infinity15. A small universe in which we have seen most of what exists is even more advantageous6; indeed, strictly speaking, they are the only universes in which we can predict the astronomical future — the return of Halley's comet, for example — because only in them do we have access to all the data needed to make such predictions. The WMAP data, as interpreted by Luminet et al.1, suggest that we might indeed live in such a small closed universe. ------------------ Link to comment Share on other sites More sharing options...
Guest PHYNE Posted November 14, 2003 Share Posted November 14, 2003 [i got flicks of the lunar eclipse the other night.....pretty dope shit to see...................... Link to comment Share on other sites More sharing options...
Guest WebsterUno Posted November 14, 2003 Share Posted November 14, 2003 I was watching TDC the other night. They had this thing about the satelite Ulyssess. The one that was on its way to Saturn. It was pretty interesting. I was toggling between that, and some show about Subways on another Discovery Channel. Ahh...the wonders of satellite TV! Link to comment Share on other sites More sharing options...
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