This website is not intended as a forum for discussion. The posts and pages are personal notes of the author, designed in such a way that they may be of interest to a casual passer-by. Many, if not all, are under construction and need revision, addition or elaboration. The dates are usually incorrect as small, accidentally recovered notes may have found their way to this site after a long time.

There is an accompanying older website, in Dutch, called 19 Raven. It rather reflects my esoteric interests. This website, on the other hand, focuses on technical and scientific observations. Some posts are almost direct translations.

For more information on my objectives see the opening message.

Should anyone believe that correction is desired, or a discussion might be useful, please send an e-mail. I will try to respond on serious comments.

Bob Duin

Print Friendly, PDF & Email
Scroll to Top