We live in a complicated world. There are those that are content with the knowledge that things 'just work.' When they don't work, they call people like me. I, am one of the worlds many technicians. We comprise an unseen army, millions strong, that fix the world. When those less technically inclined asked what we did to fix the world, we respond:

This is my page of technical reference material...
Magic to some, useful to others.

Read my paper on Lasers on the Modern Battlefield.
Read my paper on High Definition Television (HDTV).

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I love my Roomba floorvac robot.