Ready References
Signal Conditioning and Data Acquisition Overview
Binoculars: Halfway to a Telescope
Choosing Binoculars for Astronomy
Easy Prototyping
Fields of Gravitation
The Myth of Amateur Science
Laboratory animal guidelines
Ready References 
Signal Conditioning and Data Acquisition Overview Binoculars: Halfway to a Telescope Choosing Binoculars for Astronomy 
Easy Prototyping Fields of Gravitation The Myth of Amateur Science 
Laboratory animal guidelines