G. To Do List for the site

Video
Record radius tolerancing video per Tardiff's suggestion
Web content
Create android app for top 10 optics equations
Have Dan D. add glass map program to website.
Write a Geogebra program for imaging nomograph (upload to my site and geogebra)

=> Explore if site could be transferred to wiki type setup per Dan S suggestion.
Will have to see if google sites has this ability.