Physics Department Colloquium: "Fluid 'Ratchets' and Biological Locomotion"
Jun Zhang (NYU-Courant Institute)
In this talk, I will discuss a few laboratory experiments that were inspired from examples of biological locomotion. There, solid structures were forced to interact with their surrounding fluid. These structures, or…
High Energy Theory Seminar: “Thriving From the Vacuum”
Claudia de Rham (Case University)
Theories of modified gravity in the infrared usually come hand in hand with additional degrees of freedom which couple to matter at gravitational strength and carry a low strong-coupling scale. By including non-…
Condensed Matter Seminar: "The Granular Physics of (Real) Landscapes"
Doug Jerolmack (University of Pennsylvania)
The Earth's surface is a granular-fluid interface, shaped by the feedbacks among water/air flow, topography and particle transport. A bewildering array of patterns arise due to the unstable nature of a sheared,…
Astro Seminar: "Early Weak Lensing Results from the Dark Energy Survey"
Mike Jarvis (UPenn)
I will present some of the recent results from the weak lensing analysis of the Dark Energy Survey (DES) science verification data. The science verification (SV) data used the same telescope and camera as the full…
Condensed Matter Seminar: "Bending Rules in Graphene Kirigami"
Gene Mele (University of Pennsylvania)
The three dimensional shapes of graphene sheets produced by nanoscale cut-and--join kirigami are studied by combining large-scale atomistic modelling with continuum elastic theory. Lattice segments are selectively…
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