[split] Taccola spillover thread

[Jorge_Stolfi]

I disagree. They are failed copies. I marked a relevant area with A. We can see an end of a pipe there and a water flowing out of it.

Good eye!  And there are in fact other similarities:

• The hole in the ground at the left end of the bridge in 1,2
  
• The second mountain at NE in 2,3
  
• The wavy wall(?) at the foot of the hills in 2 becomes a cliff in 3.
  

As I wrote before, my guess is that the bridge was meany to be a You are not allowed to view links. Register or Login to view. to take channeled water over an obstacle.  If so, it must have been just a "theoretical invention".  Such a siphon must be primed by filling it with water.  That would be tricky for a siphon of that size...

All the best, --stolfi