Hey Old Man!
I just happen to have a B.S. in Geology. I've read most of Randi's commentaries on dowsing, and, while he does on occasion say things that are not technically accurate, his miss-statements are similar to most peoples' understanding of geology. I've never thought that he believed that his wording was the be all and end all of geological definitions or that he wouldn't be gracious and say "Thank you for correcting me" if someone took the time to point out the minor inaccuracies in his wording.
Peter Morris reminds me of a former supervisor of mine, who would seize on any small mistake or alternate interpretation of someone's wording just to prove that the speaker was 'wrong'.
A few other people here seem to do the same thing. If you are regarded as "hostile" to the cause (whatever that is), every little thing will be picked to death, while the large points are ignored.
I just talked to a friend who is a groundwater engineer, and asked him a bunch of questions about this. After he answered them, he asked me why I was so interested. How did this come up? When I told him, he asked me why in the hell was I worried about what people said about it on a message board?
Good point. Why does it seem so important?
Oh yeah, a million dollars, and a very public figure.
heh
I'm just trying to make sure I'm picturing what we're talking about. The flowing underground water we're arguing about is supposed to be like water flowing in a pipe, right? Unobstructed? If, hypothetically, the water weren't there, there would be an empty tubular hole big enough to contain at least a small river, say several yards in diameter?
As it was explained to me, there are different kinds of underground water. (duh!)
Concerning flowing water, in what could be regarded as streams or rivers, there are several physical reasons. An open tube, or pipe, in the rock,
is a real underground river or stream. They are well known. The large ones are considered "caves" after they have eroded a large enough structure to enter. But there are many more smaller passages. As was pointed out, this is in Karst formations, as well as volcanic areas, with eroded lava tubes. Karst formations exist in many areas, not just florida.
There is also porous rock or ground that can have a flow. It will, over time, erode a channel and possibly a cave. There are well known underground streams at the Devils Millhopper, just north of Gainesville FL. A reall deep dry sinkhole.
http://gainesville.about.com/od/sports/gr/DevilMillhopper.htm
Movie
http://www.flmnh.ufl.edu/expfl/millhopper.html
The streams come out of the side of the hole, make waterfalls, then runs back into the ground, and continue on, underground.
Nobody considers the flow a "cave", but there are fissures and channels that the water has created over time.
In fact, that is what makes sinkholes, water eroding material from under the ground, as it flows. The underground stream in the Millhopper
created the formation.
The many springs in Florida are considered the above ground portions of underground rivers. This is true in many other states as well.
So it doesn't count, for example, if there's a long chanel of porous rock through which water is seeping fairly quickly, while the non-porous rock around it has virtually no water moving through it. Because that's the normal percolation of water through rock/soil, and not an "underground river." Correct?
Well, the nitpicking over definitions of words IS a real issue. In fact, it seems to be THE issue at times.
Perhaps a last resort when there is nothing else to say. Long channels of porous rock, soil, and fissures in rock, are exactly what water flows through underground, in the case where the flow is considered a stream or river. After a million years, when the water has made a big old cave, it is still an underground river.
There is also scientific evidence of underground rivers that have formed in a completly different way. They were buried.
Calling it something else doesn't change the fact that
there is water flowing under. Into the blue again, water flowing under, into the blue again, water flowing under.
Same as it ever was, same as it ever was.
