Penelitian ahli ilmu falak sudah begitu jauh...
Tapi manusia dungu kayak anjing seperti Abbas Amin, arra_s, ayub yahya, Dipo,
PAREWA PAREWA, Pinpin, rezameutia, Roman Proteus, safin _blanc itu masih
bersedia menjadikan sebagai kitab suci khurafah najis al-Musahf susunan orang
Arab primitif yang membual bilang bumi itu datar dan terdiri dari tujuh lapis
dan diatasnya ada langit yang tujuh lapis pula dan dilapisan teerendahnya ada
bintang yang dipake malaeket buat nyabmit setan...
Mereka itu betul-betul adalah manusia yang bukan saja dungu, tapi juga tidak
punya harga diri.
Web address:
http://www.sciencedaily.com/releases/2012/08/
120821094032.htm
Big Picture of the Universe Confirmed, WiggleZ Survey of More Than 200,000
Galaxies Shows
enlarge
This image is a slice from a large simulation called 'GiggleZ' which
complements the WiggleZ survey. It shows a snapshot of the large-scale matter
distribution as studied in Morag Scrimgeour's research. (Credit: Greg Poole,
Centre for Astrophysics and Supercomputing, Swinburne University.)
ScienceDaily (Aug. 21, 2012) We know that stars group together to form
galaxies, galaxies clump to make clusters and clusters gather to create
structures known as superclusters. At what scale though, if at all, does this
Russian doll-like structure stop? Scientists have been debating this very
question for decades because clustering on large scales would be in conflict
with our 'standard model' of cosmology. The current model is based on
Einstein's equations assuming everything is smooth on the largest scales. If
matter were instead clumpy on very large scales, then the entire model would
need to be rethought.
Cosmologists agree that on 'small' scales (tens of millions of light years),
matter in the Universe is highly clustered. So the 'standard model' can only
hold true if the Universe transitions to an even distribution of matter
(homogeneity) on larger scales, irrespective of the viewing direction. However,
some scientists have recently argued that the entire Universe never becomes
homogenous, and that it is clustered on all scales, much like one of
Mandelbrot's famous 'fractals' (a snowflake is a good example of a fractal). If
the Universe has properties similar to a fractal, our description of space and
time is wrong, and our understanding of things like Dark Energy is deeply
flawed.
New data from a recently completed galaxy survey was published last night by a
PhD student from the International Centre for Radio Astronomy Research (ICRAR)
and The University of Western Australia in Perth and her colleagues. This paper
might finally put an end to this long running debate.
Using the Anglo-Australian Telescope, Ms Morag Scrimgeour has found that on
distance scales larger than 350 million light years, matter is distributed
extremely evenly, with little sign of fractal-like patterns.
"We used a survey called WiggleZ which contains more than 200,000 galaxies, and
probes a cosmic volume of about 3 billion light years, cubed," Ms Scrimgeour
explains "This makes it the largest survey ever used for this type of
measurement of the large scale Universe."
This finding is extremely significant for cosmologists as it confirms that the
tools being used to describe the Universe are the right tools for the job after
all. Had evidence been found confirming large-scale fractals, it would have
left cosmologists without a working model for the Universe, sending them back
to the drawing board to painstakingly adjust theories.
"Our entire understanding of the Universe, even how we interpret the light we
see from stars and galaxies, would be affected if the Universe were not even on
large scales. By looking at how the WiggleZ galaxies are distributed in space
on scales up to 930 million light years, we find that they are very close to
homogeneous, meaning there is no large-scale clustering. So we can say with a
high degree of certainty that our picture of the large-scale Universe is
correct," said Ms Scrimgeour.
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Story Source:
The above story is reprinted from materials provided by International
Centre for Radio Astronomy Research (ICRAR).
Note: Materials may be edited for content and length. For further
information, please contact the source cited above.
Journal Reference:
Morag I. Scrimgeour, Tamara Davis, Chris Blake, J. Berian James, Gregory B.
Poole, Lister Staveley-Smith, Sarah Brough, Matthew Colless, Carlos Contreras,
Warrick Couch, Scott Croom, Darren Croton, Michael J. Drinkwater, Karl Forster,
David Gilbank, Mike Gladders, Karl Glazebrook, Ben Jelliffe, Russell J. Jurek,
I-hui Li, Barry Madore, D. Christopher Martin, Kevin Pimbblet, Michael Pracy,
Rob Sharp, Emily Wisnioski, David Woods, Ted K. Wyder, H. K. C. Yee. The
WiggleZ Dark Energy Survey: the transition to large-scale cosmic homogeneity.
Monthly Notices of the Royal Astronomical Society, 2012; 425 (1): 116 DOI:
10.1111/j.1365-2966.2012.21402.x
Need to cite this story in your essay, paper, or report? Use one of the
following formats:
APA
MLA
International Centre for Radio Astronomy Research (ICRAR) (2012, August 21).
Big picture of the universe confirmed, WiggleZ survey of more than 200,000
galaxies shows. ScienceDaily. Retrieved August 22, 2012, from
http://www.sciencedaily.com /releases/2012/08/120821094032.htm
Note: If no author is given, the source is cited instead.
Disclaimer: Views expressed in this article do not necessarily reflect those of
ScienceDaily or its staff.
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