Build a webcam that can be viewed and controlled from the web. You will need a servo, a webcam and aParallax Basic Stamp 2 Starter Kit.
http://www.jawed.com/camera/
simple three-IC superheterodyne radio to receive stations in the 4.5- to 10-MHz range
http://www.edn.com/archives/1996/080196/16di6.htm
Mirror making and optics, designing, design and construction of mount, and cost with images.
http://www.interstellarflight.com/atm/presentation/home.html
can be built from a common drop splitter or directional coupler
http://www.shol.com/kuggie/cttip/ndc.html
A simple and inexpensive method of constructing a robust optical encoder capable of producing quadrature encoded signals.
http://users.on.net/~merrifield/opto/index.html
Article featuring information on building a truss-tube Dobsonian with pictures, description, and costs for Prairie Astronomy Club.
http://www.prairieastronomyclub.org/scope2.htm
this circuit generates 16-bit logic sequences with a resolution of 100 nsec
http://www.edn.com/archives/1996/062096/13di1.htm
Suggestions before purchasing a telescope.
http://departments.weber.edu/physics/planet/telescope.html
An article from the Play-By-Electronic-Mail Fanzine, v95n2, which was published on February 13, 1995.
http://www.pbm.com/~lindahl/pbem_articles/cpprobots_environment.html
a low-cost learning board C-52 EVB for studying Assembly and C language programing
http://chaokhun.kmitl.ac.th/~kswichit/C52EVB/c52.htm