http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. have built the first optical frequency comb -- a tool for precisely measuring different frequencies of visible light -- that actually looks like a comb. http://www.physorg.com/news176046009.html Physics Thu, 29 Oct 2009 14:41:00 EST news176046009 Researchers at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. have created an "astro-comb" to help astronomers detect lighter planets, more like Earth, around distant stars. The Harvard group will present their findings at the 2009 Conference on Lasers and Electro Optics/International Quantum Electronics Conference. http://www.physorg.com/news160940960.html Physics Thu, 07 May 2009 18:49:52 EST news160940960 A new and comprehensive analysis confirms that the evolutionary relationships among animals are not as simple as previously thought. The traditional idea that animal evolution has followed a trajectory from simple to complex -from sponge to chordate -meets a dramatic exception in the metazoan tree of life. New work suggests that the so-called "lower" metazoans (including Placozoa, corals, and jellyfish) evolved in parallel to "higher" animals (all other metazoans, from flatworms to chordates). It also appears that Placozoans -large amoeba-shaped, multi-cellular animals -have passed over sponges and other organisms as an animal that most closely mirrors the root of this tree of life. http://www.physorg.com/news152259480.html Biology Tue, 27 Jan 2009 06:18:25 EST news152259480 Events on a cosmic scale are often barely discernable on Earth. This explains why astronomers are currently not able to prove directly that the universe is expanding at an ever increasing rate, nor can they search for planets that are roughly the same size as Earth and revolve around a sun-like star. http://www.physorg.com/news140178546.html Physics Tue, 09 Sep 2008 11:29:06 EST news140178546 Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope of a new calibration system for precise spectrographs. The method uses a Nobel Prize-winning technology called a 'laser frequency comb', and is published in this week's issue of Science. http://www.physorg.com/news139755149.html Physics Thu, 04 Sep 2008 13:52:29 EST news139755149 Engineers have created a tiny motorized positioning device that has twice the dexterity of similar devices being developed for applications that include biological sensors and more compact, powerful computer hard drives. http://www.physorg.com/news138462499.html Nanotechnology Wed, 20 Aug 2008 14:48:19 EST news138462499