In addition to being an environmentalist, I'm a bit of a computer geek. I have been back in college studying computer science and environmental science since last fall, which has only served to amp up my geekish tendencies. That may account for how excited I was to spend a half hour watching this video series on YouTube about early analog computers that were used by the Navy to aim guns decades before digital technology came into the picture.
Wikipedia has a great page on analog computers that will fill you in on the history and importance to the later development of what we think of as a computer today.
Are you on Twitter? Follow me (@sheagunther) there, I give good tweets.
And if you really like my writing, you can join my Facebook page.