AlejoHausner: Comments

Maybe you did not know that Hitler wrote "Mein Kampf" while he was prisoner in this jail, in 1924.

See "Landsberg" on wikipedia.

Alejo

Well, my expert says he's never heard of a tidal bore on the Piscataqua, so it's probably not that.

Well, wikipedia says that tidal waves are formed by the incoming water of the rising tide. Usually tides take 6 hours to rise fully, on the open coast, but in an narrowing estuary the water can bunch up and actually form a sudden step. This is not a boat wake (too wiggly), and it goes all the way across the river, so it does suggest the whole river depth is changing. However, I'm not 100% convinced that this is indeed a tidal wave, because of the lighting. I get the feeling that there's a...

http://googlesightseeing.com/2005/08/05/iraqi-shipwrecks/ has a discussion on this and other shipwrecks in the Shatt al Arab.

The GM URL is slightly off. It should be:

http://maps.google.com/maps?hl=en&t=k&q=Brazil&ie=UTF8&ll=-19.600749,-43.193479&spn=0.013665,0.020449&om=1

I'm ignorant in matters of glaciation, but why is there a high region at the middle of the circular formation? Here's a topo map of the area:

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