CARLETON COLLEGE PHYSICS AND ASTRONOMY

WEEKLY BULLETIN Apr 18 - Apr 24, 1996

Today Thursday, April 18 4:30 Olin 108

CAREERS IN SCIENCE WRITING: A talk by Visiting Professor Dr. Ruth Guyer. Students interested in combining their interest in science with their writing skills are urged to attend. Dr. Guyer is Visiting Professor from the Office of Science Education, National Institutes of Health. She received her Ph.D. in Immunology from the University of California at Berkeley. She is a part-time graduate school faculty member at Johns Hopkins University in addition to her work as a science writer.

Friday, April 19 12:00 CTR

PHYSICS / ASTRONOMY TABLE: Meet in Olin 309 at 11:50 a.m. for the walk to the CTR or join us and Physics 123 speaker, Silva Leonard Theiss, there at noon.

Friday, April 19 1:10 to 2:10 Olin 141

PHYSICS 123 TALK: "Three-Stage Lattice Relaxation of Ge on Si(111)" by Dr. Silva Leonard Theiss (`87), AT&T Bell Laboratories. All are welcome. Refreshments available. An article on this topic is on reserve in the Science Library. Understanding strain relaxation during the growth of one crystal on another is important to the creation of semiconductor devices. The scanning tunneling microscope (STM) allows us to make measurements of strain on an extremely short length scale. STM measurements of strain relaxation in Ge islands growing on Si(111) reveal a very surprising interplay between plastic and elastic relaxation mechanisms.

1. Hey Everybody! Check out the new Web site for information on Careers in Science and Engineering. It is through the National Academy of Sciences at http://www2.nas.edu/cpc You'll find a student guidebook for career planning and information as well as many other interesting features. Check out the posting on 2nd Olin for more info.

2. Physics/Astro T-Shirts It's not too late to get yours (faculty and staff too!). Campus mail Brian Geyer or Karen Griffith with your size and $7.00.

3. Physbee, Game 2 Saturday April 20, Hill of Three Oaks, 2:00 pm. For more info contact Nate Hultman, email hultmann