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<p class="MsoNormal">Material science, mechanics, and fundamental physics meet in a special seminar this Friday.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Title: Glassy metal fibers for Measuring big G<o:p></o:p></p>
<p class="MsoNormal">Speaker: Riccardo Desalvo (California State University, University of Sannio)<o:p></o:p></p>
<p class="MsoNormal">Time/Date: 2pm Friday 2<sup>nd</sup> September 2016<o:p></o:p></p>
<p class="MsoNormal">Room: JA504<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Abstract:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The measurements of the Universal Gravitational Constant “G” have been improving in precision and spread for 200 years Then starting 50 years ago, while the nominal precision of the experiments has shrunk to 10 ppm, or less, the spread
between measurements has remained around 100 ppm. Clearly an uncontrolled physical mechanism is at work.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It has been proposed that the same Self Organized Critical behavior that destabilize GAS filters and IPs at low frequency also acts on the Tungsten fibers and breaks down the F=kx restoring force at the base of all measurements. It is proposed
to use glassy metal fibers, which being dislocation free cannot be subject to the suspected physical mechanism. If proven correct, the same materials can be used for low frequency seismic attenuations for the Einstein Telescope.<o:p></o:p></p>
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