In the beginning the main thing on this site were a number of articles that I researched and wrote. After a while I realized that some people were still looking for these articles so I put them back with the same addresses as they had before.
I updated them before replacing them. One of them mentioned a 150w light bulb. Well I have not been able to buy one of those for quite some time. Come to think of it I cannot longer buy incandescent light bulbs at all now. These articles were first written in 2001 or 2002 and times have changed. However, the majority of the content was still useful hence they have been updated rather than taken down.