Showing posts with label energy. Show all posts
Showing posts with label energy. Show all posts

Tuesday, August 14, 2012

Meet the largest map of the universe in three dimensions (Video)

http://i.imgur.com/WkRnF.jpg

The Sloan Digital Sky Survey III (SDSS-III), after making the largest and deepest of the night sky photography captured so far, now wants to expand that image and presented a three-dimensional map of massive galaxies and black holes away. This map has a press release in the Canary Islands Astrophysics Institute, which works with the project, will help astronomers to explain two of the great mysteries of modern science: dark matter and dark energy.
The collaboration has also released an instructional video which shows a simulated journey through the universe of galaxies in the SDSS project. The animation shows over 400 000 galaxies in their observed positions and real images of the same. Each of the points of light seen is a galaxy containing billions of stars and planets.
The 3D map, the key to the ninth publication of data that made this collaboration, is available on the pages http://www.sdss3.org/dr9 and http://skyserver.sdss3.org. Among the content that can find no images of 200 million galaxies and over a million spectra. Of these, 540 thousand are galaxies, most had not been studied previously and we see them as they were when the universe was half its current age, which is about 13.7 million years.

Friday, July 20, 2012

Problems with the WiFi on your Mac?



Apparently, some users have had problems with the WiFi connection of your Mac. While this may not bother some people, are sure to fall very badly to others. WiFi chips used by Apple are also used in many other devices, so the problem does not seem to come from that side, but still, the hardware is controlled by the software , and in this case it appears that the energy manager of the operating system Mac OS X Lion is the source of the problems with WiFi.
Some users of Apple Forums contacted the suppliers / vendors of routers, and they asked them to deactivate the power manager on their machines to avoid the loss of connectivity. And apparently it solved the problem.
What had happened here? Well, basically, the problem was between certain routers and OS X Lion: to enter the idle WiFi chip, and subsequently be summarized, connectivity with the router was not reset properly. It is not clear who should solve the drawback: if router problem must be the manufacturer, and if the side of the operating system is Apple responsible. Note that this problem has been presented only for OS X Lion.
Does anyone around here has had this problem? If the case is that, try turning off the power manager on the Mac