The link you sent me did not disprove my theory - and please don't reference wikipedia. I know you can do much better. However, let's say that some wavelengths could indeed get through the glass. The problem is that nobody really knows exactly what rays humans need to make vitamin D. Also, can you find a single large-scale (I would say 1000+, but that's a relatively low number. A real large scale study is more like 10,000+...) study that shows lamps produce significant amounts of V.D.?
The link you sent me did not disprove my theory
Yes it did.
and please don't reference wikipedia. I know you can do much better.
Wikipedia is an excellent resource to reference for trivial facts. Follow the links from the wikipedia page and look at the actual sources if you really want to pretend you are too cool for wikipedia itself. (That is, the wikipedia snub is an intellectual one-upmanship move that is miscalibrated with respect to this particular social environment.)
...The problem is that nobody really knows exactly what rays humans need to make