Rectangular front surface mirror made by Plummer Precision Optics to be used in the military M32 Tank Periscope. These were originally purchased by the govt. as spare parts and are unopened in original box. Aluminized and in mint condition. We've got a good supply, so if you have a project that needs a quantity of quality front surface mirrors at this rock bottom price, we can probably accommodate you. From the archives of Scientific American Magazine, more than 70 years of experiments and projects from all The Amateur Astronomer, The Amateur Telescope Maker, and The Amateur Scientist columns from the begining in 1928 thru 1998 .
Every article is complete with all photos, sketches, etc.
These are actual construction articles rated by difficulty, cost, target age, and safety. Fully searchable text, updated and corrected. Articles from such well known people as Albert Ingalls and C.L. Strong, Jearl Walker, Shawn Carlson, and others. This is the most complete resource ever assembled for science hobbyists, home schoolers, educators, science fair participants, researchers, schools, colleges, clubs, organizations, etc. Behavior, Botony, Entomology, Genetics, Lab Techniques, Orinthology, and Physiology.