Pangaea players Students from Dance and Drama perform Bodies in-Verse during events Tuesday at the summer arts festival, Pangaea. The students are dancing to poetry from each of seven continents. Repeat performances at Grieg Garden are scheduled for 10:15 a.m. and 1:30 p.m. Friday, 12:15 p.m. Saturday, and 10:15 a.m. and 1:30 p.m. Sunday. Photo by Kathy Sauber

University of Washington oceanographer Deborah Kelley contrasts the white porous (almost wasp-nest-like) texture of a sample from the Lost City’s carbonate chimneys in her right hand with a sample from the sulfide chimneys studied since the 1970s. Photo by Mary Levin PHOTO: ml20000973_16

The UW Husky Band performs at the Great Wall during a recent two-week tour of China. The group also performed for more than 4,000 onlookers at Beijing University’s main campus square. Photo courtesy of Husky Band

When the Arctic Oscillation is in the positive phase (left), a ring of strong winds circulating around the pole acts to dam up cold Arctic air within the polar regions. When it is in its negative phase (right), the ring is distorted and that makes it easier for chilly arctic air masses to escape to lower latitudes (black arrows), bringing subfreezing temperatures and snow (white dots).

Paul Sisson taps a delivery system into one of the Sylvan Theater elm trees. The system distributes a chemical that prevents Dutch elm disease. Photo by Steve Hill PHOTO: SH20010565_13a

Testing radio signals Working with equipment that looks as if they might be listening for signals from other planets, technicians from Sparling Consultants are making their way through the Health Sciences Building checking for areas where radio signals are weak. As many people working there already know, the building blocks many cell phone and radio signals, especially in the interior areas. In addition to testing for reception of public safety radio signals, the consultants are scanning for other radio signals that could cause interference. Photo by Gavin Sisk

Dr. Steve Gloyd, left, director of the International Health Program, was introduced to Minister Selah Meky, center, by Sandra Chait, associate director of the Program on Africa. Photo by Kari Berger

Laugh break Some Harborview Medical Center employees gathered early one morning last week to take part in a “Laughter Clinic,” based not on jokes but on the experience of contagious laughter. The brief coffee-break event was held at View Park, just north of the medical center. Photo by Katie McCarthy

Photos identified by number may be ordered from uphoto@u.washington.edu.