http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A state-of-the-art welding process refined for use in naval shipbuilding by the Office of Naval Research (ONR) has crossed over to the world of computing. http://phys.org/news274023734.html Technology Thu, 06 Dec 2012 13:42:22 EST news274023734 Sound waves are commonly used in applications ranging from ultrasound imaging to hyperthermia therapy, in which high temperatures are induced, for example, in tumors to destroy them. In 2010, researchers at Caltech led by Chiara Daraio, a professor of aeronautics and applied physics, developed a nonlinear acoustic lens that can focus high-amplitude pressure pulses into compact "sound bullets." In that initial work, the scientists demonstrated how sound bullets form in solids. Now, they have done themselves one better, creating a device that can form and control those bullets in water. http://phys.org/news272541003.html Physics Mon, 19 Nov 2012 10:00:01 EST news272541003 Biofilms may no longer have any solid ground upon which to stand. http://phys.org/news262871683.html Chemistry Mon, 30 Jul 2012 15:00:07 EST news262871683 Steel may have met its match: An Office of Naval Research (ONR)-funded project will produce a full-size ship hull section made entirely with marine-grade titanium using a welding innovation that could help bring titanium into future Navy ship construction, officials announced April 3. http://phys.org/news252751557.html Chemistry Wed, 04 Apr 2012 09:46:14 EST news252751557 (PhysOrg.com) -- Fritz Vollrath and colleagues from Oxford University have been analyzing the gooey material produced by tiny amphipods known as Crassicorophium bonellii, a small shrimp-like creature that produces the goo for use as a binding material in building its undersea home. The team has found, as explained in their study published in Naturwissenschaften, that the material is a sort of combination between the cement barnacles use to affix themselves to rocks and ship hulls, and spider silk; an interesting combination that if duplicated in an industrial process could lead to beneficial materials for use in medical implantation products. http://phys.org/news241257161.html Biology Wed, 23 Nov 2011 07:53:13 EST news241257161 Invasive species have hitchhiked to the U.S. on cargo ships for centuries, but the method U.S. regulators most rely on to keep them out is not equally effective across coasts. Ecologists from the Smithsonian Environmental Research Center have found that ports on the East Coast and the Gulf of Mexico are significantly less protected than ports on the West Coast. http://phys.org/news239637511.html Space & Earth Fri, 04 Nov 2011 15:30:04 EST news239637511 A new artificial surface inspired by floating seeds, which could provide an alternative to the toxic paints currently used to prevent fouling on ship hulls, has been developed by German scientists. http://phys.org/news228966978.html Chemistry Mon, 04 Jul 2011 02:56:39 EST news228966978 North Carolina State University engineers have created a non-toxic "wrinkled" coating for use on ship hulls that resisted buildup of troublesome barnacles during 18 months of seawater tests, a finding that could ultimately save boat owners millions of dollars in cleaning and fuel costs. http://phys.org/news162723992.html Chemistry Thu, 28 May 2009 10:07:38 EST news162723992