The (puppet) theory of (puppet) relativity

Here's an intriguing subtitle: "A found-object puppetry play inside the mind of Albert Einstein."That subtitle is attached to One Stone: Einstein, a work-in-progress from two of the Bay Area's leading theatrical lights: playwright Trevor Allen and puppeteer Liebe Wetzel (along with her Lunatique Fantastique puppeteers).The play, which involves found text, found-object puppets and David Sinaiko as Albert Einstein, receives two readings: 7:30 p.m. Monday, May 19 at Stanford University and 7 p.m. Tuesday, May 20 at Traveling Jewish Theatre (470 Florida St., San Francisco). These are free "in the rough" presentations presented by the Playwrights Foundation.You can RSVP by e-mailing rsvp@playwrightsfoundation.org or by calling 415-626-0453, ext. 105.