Past Events

  • ABO Seminar: Photomedicine: 3 Examples From Bench to Bedside

    Donner Auditorium, Basement, Donner Building, 3400 Spruce Street

    Professor Hubert van den Bergh (Photomedicine group Swiss Federal Institute of Technology (EPFL))

    I will discuss 3 developments from the basics to widespread clinical application, in which light is used for detecting disease, and for treating disease. The first case is the development of an auto-fluorescence bronchoscope used for the early detection of bronchial cancer. The second topic is the development of the drug HEXVIX (CYSVIEW in the US), for the early detection and quantitative removal of bladder cancer.
  • Astro Seminar: "Can We Teach Scientific Critical Thinking to non-Scientists and Scientists Alike? (A Modestly Grandiose Educational Proposal to Save the World, Up for Discussion)

    David Rittenhouse Laboratory, Room A4

    Saul Perlmutter (LBNL)

    There is a body of techniques and practices, a language and culture,
    that is usually implicitly taught by apprenticeship and osmosis to
    graduate students and postdocs. This is the underpinning of an
    approach to the world that is shared by scientists, but not much used
    (or understood) by the rest of society. Can we make these implicit
    concepts explicit, and teach them to all undergraduates, whether or
    not they intend to be scientists? Could this help our society
    address difficult issues such as are raised by the global environment

  • Astronomy Night: "The Fate of the Universe"

    David Rittenhouse Laboratories, and Shoemaker Green 209 S 33rd Street

    Dr. Marisa March, Post-doctoral Researcher (University of Pennsylvania)

    Stargazers of all ages are invited to spend an evening looking up! 

    Members of the Department of Physics and Astronomy will help you explore the night sky through telescopes on Shoemaker Green. Special physics demonstrations and a discussion of the fate of the universe are also on the agenda. Join us for any or all of our free Astronomy Night events!

  • Astro Seminar: "Mapping Magnetic Fields in Star Forming Regions with BLASTPol and BLAST-TNG "

    David Rittenhouse Laboratory, A6

    Laura Fissel (Northwestern)

    A key outstanding question in our understanding of star formation is
     whether magnetic fields provide support against the gravitational
     collapse of their parent molecular clouds and cores. Direct
     measurements of magnetic field strength using Zeeman splitting are
     extremely difficult and only a few clear detections have been made in
     high density molecular gas. Alternately, observations of polarized
     thermal emission from dust grains aligned with respect to the local

  • Dissertation Defense for Jing Cai: "Superior to One of Glass: Natural Gradient Index Lenses Via Patchy Particle Self-Assembly"

    DRL Room 3W2

  • Condensed Matter Seminar: "The life of a vortex knot: Linking coiling and twisting across scales"

    DRL A4

    William Irvine, University of Chicago

    Can you take a vortex loop - akin to a smoke ring in air - and tie it into a knot or a link?

  • Quaker Days-Arts & Sciences Faculty Talks: "The Evolution of the Universe"

    David Rittenhouse Laboratory Room A8

    Professor Masao Sako (University of Pennsylvania)

    talk will focus on Penn’s observational cosmology program and the mysteries we are hoping to solve within the next five years.turn determines its history and ultimate fate. What is the Universe made of? How was it created and what is our future? Thisspeeds. The large-scale properties of these motions are determined by the mass and energy content of the Universe, which inOur Universe is a surprisingly dynamic place with stars, planets and galaxies all moving around each other at unimaginable.

    *Open to the public*

  • Department Colloquium: The Cosmic Barber:"Counting Gravitational Hair in the Solar System and Beyond"

    David Rittenhouse Laboratory, Room A6

    Clifford Will (University of Florida)

    According to general relativity, every self-gravitating object has ``hair'', an array of multipole moments of various types that characterize the body's exterior geometry. In alternative theories of gravity, bodies could also be endowed with more exotic tresses, such as scalar hair. We review how solar system experiments, such as light deflection and time-delay measurements, have placed stringent limits on scalar hair. We describe how experiments such as GRACE have measured with high precision the vast head of Newtonian hair possessed by the Earth.

  • GR Math Seminar: "The graded Lie algebra of general relativity "

    Michael Reiterer (IAS and Penn)

    Several problems can be written as [x,x]=0 where the unknown x
    is an element of degree one in a graded Lie algebra. I show that general
    relativity (the Einstein vacuum equations) can also be put in this form.
    Using this language, I discuss formal perturbation theory; gauge-fixing;
    and some open problems. Familiarity with general relativity is not
    assumed, in fact this talk can be taken to be some kind of introduction
    to general relativity. Based on Joint work with
    Eugene Trubowitz. 

  • Advances in Biomedical Optics Seminar: ""Dual-agent Fluorescence Imaging for Highlighting Receptor-Specific Contrast in Tumors""

    Donner Auditorium, Basement Donner Building- 3400 Spruce St.

    Professor Scott Davis (Dartmouth)

    *Pizza to be served @ 11:45A*