27 June 2003
Planetary
Society Launches Global "Mars Day Celebration"
By the Numbers By Peter Torrione
Opportunities: The Global Grassroots Bat Conservation Fund
Science 'Toons by Brian Mansfield
What is an identification key?
How to "Sputter" Thin Films of Metal onto Glass and Experiment with Them by C. L. Stong
Simple 5V power supply for digital circuits by Tomi Engdahl
Sign up for the Citizen Science Conference, July 17-20!
Mathematics
Corner
When Things Get One-Sided by George
Hrabovsky
The Curious
Eye
Penny for My Thoughts by Diana Hrabovsky
Wanderings
Wanderings by Ralph J. Coppola
Notes
From the Field
Observations: June, 1983, William Floyd
Park, National Seashore Long Island, N.Y. by James Farr
Light bulbs,
amateurs in Iran and more in E-Bulletin
Backscatter!
Contact
Information:
Society for Amateur Scientists
5600 Post Rd. Suite 114-341
East Greenwich, RI 02818
Phone:
401-823-7800
E-mail: info@sas.org
Copyright 1999-2003 by the Society for Amateur Scientists. All rights
reserved.