Hilton Head Island: water and a shipwreck

 

The above image comes from The Astronomy Picture of the Day.  If you can't read the caption, the biggest blue ball represents all the water on, in, and above the Earth; the middle ball is liquid fresh water; and the tiny, almost invisible ball fresh water in lakes and rivers.  We don't have much.

For a fuller explanation:

ap250907.html

This is THE ASTROLABE "Falling suddenly on the reefs in the Bay of Plenty, New Zealand' drawn by St. Aulaire.  It came to me via Jack for which I thank him.  I am including it just because I like it.