Ready References
A Guide to Backyard Astronomy
Binoculars: Halfway to a Telescope
Choosing Binoculars for Astronomy
Celebrated Variable Stars
Essential Technologies for Making Accurate PC-Based Measurements
The Use of Fused Silica
Taking the Earth's Pulse
Ready References Binoculars: Halfway to a Telescope Choosing Binoculars for Astronomy Essential Technologies for Making Accurate PC-Based Measurements 
