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22 August 2003
Keep
an Eye on Mars
by Sheldon Greaves
On a Method to Measure the Size of the Earth by Doug Strain
The
Sharks of Summer
by Forrest M. Mims, III
Geologist for a Day: Trip to a Zinc Mine by Mark Streitman
Photo: The Blackout From Space
Science 'Toons by Brian Mansfield
Build a Laboratory Cooler and Gas Liquefier by C. L. Stong
A Simple Foundry for Melting Aluminum
Making Insulating Castable Refractory
One
Thousand and One Formulas
Get
formulas on cements and glues, compositions of all kinds, glass and glass
working, inks, leather polishes, metal-craft, perfumes, soaps, photography,
blue-print and other papers, plating, pyrotechny, and more.
Only $8.45.
Mind of
a Theorist
Mass and Energy by George Hrabovsky
Mathematics
Corner
Adding Infinities by George Hrabovsky
Wind power and mysterious breaking glasses 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
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reserved.