Wednesday 12 June 2013

How would see God universe? A computer simulation offers a spectacular response (VIDEO)

Cum ar vedea Dumnezeu Universul? O simulare computerizată oferă un răspuns spectaculos (VIDEO)

Three American scientists - Miguel Aragon of Johns Hopkins, Mark Subbarao with the Adler Planetarium and Alex Szalay of Johns Hopkins University - have developed a computer animation illustrating a flight through the universe, over 400,000 galaxies. All galaxies shown in this film are real galaxies, their positions were observed in the scientific project Sloan Digital Sky Survey (SDSS).

The video illustrates the extraordinary size of the universe: each of the 400,000 galaxies observed in this animation contains, as the Milky Way, over 10 billion solar systems.

No one will ever see the universe in this way - with the exception of any deity is not subject to the laws of physics - as the virtual camera "moving through the universe at a speed billion billion (1.200.000.000.000.000) times higher than light.

Universe cosmology simulations performed since several decades, this procedure is used to test scientific theories. As increasingly sophisticated tools developed in recent years have enabled the accumulation of more data about the universe, designing realistic simulation has become increasingly difficult. The three researchers have designed this animation to allow cosmologists to better perceive the true structure of the universe.

Making this video took about a year to a maximum of animation including galaxies 1.3 billion light years from Earth (a small part of the whole universe, which is estimated to date back 13.6 billion years).


The Sloan Digital Sky Survey or SDSS is a major multi-filter imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point Observatory in New Mexico, United States. The project was named after the Alfred P. Sloan Foundation.
Data collection began in 2000, and the final imaging data release covers over 35% of the sky, with photometric observations of around 500 million objects and spectra for more than 1 million objects. The main galaxy sample has a median redshift of z = 0.1; there are redshifts for luminous red galaxies as far as z = 0.7, and for quasars as far as z = 5; and the imaging survey has been involved in the detection of quasars beyond a redshift z = 6.
Data release 8 (DR8), released in January 2011,includes all photometric observations taken with the SDSS imaging camera, covering 14,555 square degrees on the sky (just over 35% of the full sky). Data release 9 (DR9), released to the public on 31 July 2012,includes all data from previous releases, plus the first results from the Baryon Oscillation Spectroscopic Survey (BOSS) spectrograph, including over 800,000 new spectra. Over 500,000 of the new spectra are of objects in the Universe 7 billion years ago (roughly half the age of the universe).



Here simulation universe made ​​by the three researchers:

No comments:

Post a Comment

Free Directories ChicagoIX.com Free general web directory web directorySubmit Blog, Blog Directory SubmissionBlogadr.com - Listed (add your blog to Blogadr.com)Blog Promotion, Promote Your BlogLinkPro - Director Webtop-portal - Director LinkuriBlogarama - The Blog Directory