Hey, this is terrific! From the responses, I'd conclude there must be a little of the fiction writer in every surveyor-- maybe as a reaction to the e...

Well, I've definitely come to the right forum. Thanks to everyone for the suggestions and explanations. Given that the descendants don't get back for ...

Thanks, Dave and Bill, for the quick and informative replies. My immediate thoughts are these: a) artificial horizon: I'll look this up, but meanwhil...