The Earth Really is Round!

I received this e-mail from Dad last night and thought it was just too interesting not to share...

Craig, I took some pictures of the ocean toady, clear, calm, blue.


I was actually trying to see if I could see the curvature of the earth. I found out that if I had the horizon on the lower 1/3 the curve was actually concave. If on the top 1/3 it was a pronounced curve. To do with the lens I assume. This one is about in the middle just a tad above. If you blow it up on your screen and place a piece of paper left and right you can actually see the curve.

Dad