Loving the thought of this. On Sun, Jul 25, 2010 at 8:02 PM, Mr. Worf <hellomahog...@gmail.com> wrote:
> > > The Search for Dark Energy has a New Weapon > <http://omnikool.discovery.com/RealMedia/ads/click_lx.ads/news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html/498344566/Top3/default/empty.gif/5350666142307848534e774143362b62?x> > <http://news.discovery.com/contributors/nicole-gugliucci/> Analysis by Nicole > Gugliucci <http://news.discovery.com/contributors/nicole-gugliucci/> > Sat Jul 24, 2010 03:10 PM ET > 1 > Comments<http://news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html#view-comments>| > Leave > a > Comment<http://news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html#post-a-comment> > Print<http://news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html?print=true> > Email > > - > Facebook<http://www.facebook.com/share.php?u=http://news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html> > - > Twitter<http://wd.sharethis.com/api/sharer.php?destination=twitter&url=http://news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html&title=The%20Search%20for%20Dark%20Energy%20has%20a%20New%20Weapon%20:%20Discovery%20News> > - > Digg<http://digg.com/submit?url=http://news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html&title=The%20Search%20for%20Dark%20Energy%20has%20a%20New%20Weapon%20:%20Discovery%20News&bodytext=What%20is%20causing%20the%20Universe%20to%20expand%20at%20an%20accelerated%20rate?%20Astronomers%20have%20demonstrated%20a%20new%20technique%20with%20the%20largest%20fully-steerable%20radio%20telescope%20&topic=television> > - Yahoo! > Buzz<http://buzz.yahoo.com/buzz?publisherurn=discovery_cha79&targetUrl=http://news.discovery.com/space/the-search-for-dark-energy-has-a-new-weapon.html&submitHeadline=The%20Search%20for%20Dark%20Energy%20has%20a%20New%20Weapon%20:%20Discovery%20News> > > [image: > Dark-matter-energy-625x450]<http://blogs.discovery.com/.a/6a00d8341bf67c53ef0133f279c262970b-pi> > > The nature of dark > energy<http://news.discovery.com/space/one-step-closer-to-understanding-dark-energy.html>is > one of the outstanding problems in cosmology today. > *Something* is causing the universe's expansion to accelerate, but what? > Numerous techniques are being developed to attack this problem, and > astronomers have demonstrated such a technique with the largest > fully-steerable radio telescope <http://www.nrao.edu/pr/2010/highzhi/>. > > *SLIDE SHOW: Visualizing the inner workings of a Type Ia supernova -- the > "standard candle" astronomers use to measure the effects of dark > energy.<http://news.discovery.com/space/argonne-supernova-simulation.html> > * > [image: Dark-energy] *WATCH VIDEO: James Williams investigates the > mysteries behind a dark force in the universe: dark > energy.*<http://news.discovery.com/videos/space-study-sheds-light-on-dark-energy.html> > > Theories predict that acoustic, or sound waves, from the very early > universe should have left their mark in a detectable way. (What if you could > hear these > sounds<http://www.astro.virginia.edu/%7Edmw8f/BBA_web/index_frames.html>?) > By measuring the large-scale structures left behind by the sound waves, > astronomers may be able to make precise measurements of some of the > parameters of dark energy <http://news.discovery.com/dark-energy/>, thus > getting one step closer to determining its nature. > > Astronomers Tzu-Ching Chang, Jeffrey Peterson, Ue-Li Pen, and Kevin Bandura > used the Green Bank Telescope in West Virginia to map large, faint > structures of hydrogen gas. Hydrogen is the most common element in the > galaxy, and hydrogen atoms give off a characteristic "color" of radio light. > As they map the hydrogen in the universe on the largest scales, astronomers > can search for the structures created by the universe's characteristic sound > waves. > > However, mapping the most abundant element in the universe in this way > isn't the easiest task. The team developed new techniques of mapping the > faint hydrogen, as well as methods for removing stray radio interferences > from man-made sources and from astronomical sources in the foreground. The > work paid off as they detected hydrogen ten times further than had been done > before. > > To unlock the universe's deepest secrets, astronomers find themselves > working harder to find more clever techniques in order to detect fainter and > more elusive signals. But isn't it the challenge that makes it more fun? > > *Caption: Computer simulation of large scale structure. Credit: Science > Magazine* > > > -- > Celebrating 10 years of bringing diversity to perversity! > Mahogany at: http://groups.yahoo.com/group/mahogany_pleasures_of_darkness/ > > > -- "If all the world's a stage and we are merely players, who the bloody hell wrote the script?" -- Charles E Grant http://www.youtube.com/watch?v=fQUxw9aUVik
