Philadelphia art museum at night
Coworkers at the University of Pennsylvania
Sqirrels
Commencement (Graduation Ceremony) 2004
Fender American Deluxe Jazz Bass
Appalachian Trail, Delaware watergap to A.T. train station
Penn Relays Sports Event
Thesis Defense Minxin
Wissahickon Park, Philadelphia
Philadelphia at Night
Fairmount Park, Philadelphia
Macro photos using my extension tube
University of Pennsylvania Campus
Philadelphia
My apartment in Philadelphia
Philadelphia
My books did arrive
My last two weeks in Paris
Visiting Philadelphia over the Weekend
Trip to Los Angeles
KITP Program in Santa Barbara, California
Strings 2003 in Kyoto, Japan
Visit to Nikko
Visit to Tokyo
Sending my books from Paris, France to Philadelphia, USA
Spring School on Superstrings and related Matters, Trieste 2003
Visit to Torino
Visit to Rome
Les Houches Winter School Geometry, Number Theory and Physics 2003
Mon cours de français à l'Alliance Française
Paris at Night
Paris tourist attractions
Meine Wohnung in Paris (IKEA laesst gruessen)
Streiks in Paris
Wohnung in Paris (82 rue René Boulanger)
RTN Workshop in Leuven (Belgium), September 2002
Gartenfest in Priesendorf
Bamberg
My farewell-party in Berlin
Kayaking on the Salza (Austria), stay in Hinterwildalpen
Photosafari with Tassilo in Berlin
PhD Defense
Strings 2002 in Cambridge, July 2002
Travelling from Cargese to Cambridge, spent weekend in Nimes
Ulf's pictures from the Cargese School
Summer School in Cargese, June/July 2002
Hiking from Corte to Cargese (Corsica)
Pictures from Trips to London
More Berlin pictures
Clay Mathematics and Isaak Newton Institute School, March/April 2002