Window dimensions.

After reading many of very enlightening posts about windows, shields and
other things with respects to building O'Neil colonies, I have come to a few
things. One, while we know a lot of many ways to build a colony, we have no
real solid facts on which actually work best both techincally and
economiclly. It seems to me that before we can even begin building a large
colony, we need to build smaller scale versions as research labs in various
aspects of space life and work. I would suggest starting with a simple torus
based on O'Neil farm ring and experiment with light, shielding, material, and
building methods and another for housing experiments. The farm ring could be
used for experiment with landscaping and lvestocks as well as crops. One
advantage to this beside the savings in trial and error experiments would be
having two additional source of income as both educational tourism site and
food output (the one that work that is) to hotels and stations, thereby
cutting down on their food budget. Together, we can learn what we need to do
before spending $20 billion on Island One!