Then there is Google earth. So clever!
> Hi Carol,
> you wrote: (bold and underlined are mine)
> I'd just like to point out an error in that
> sentence, Vanya. When looking out to see from a
> beach, the horizon is not curved, it's perfectly
> level. That's because each of us is standing in
> the centre of our own 360 circle, looking out
> at a horizon that's equidistant in all
> Thanks for your precisation but I have to say
> that I did not precise other particulars which
> after your puntualization
> are obbligatorily due, in order to better
> understand and of course to not allow other
> erroneus interpretation......
> The locality of the beach I refer, is located
> just before the 3 Greek Kalkidiki penisulas and it
> is 70 km far from Thessaloníki.
> The beach has a little commercial port on its
> left, from where beach started, and after the port
> you can see
> , alwais at your left, the wide bay which at its
> end is visible the west cosat of Cassandra
> penisula till its extreme promontory which is
> situated at about the half lenght of the
> In fromt of the beach and very far away, is the
> East-South coast of Greece which, if there are not
> mist, you
> can see it, along with the important shape of Mont
> On the right side (west - North-west)the beach
> stretches for about 8 kilometer and after that
> start some
> creeks which ended on another promontory distant
> about 30 km.
> So that the sea in bright days without mist, gave
> a vision of 180 degrees and it seems that the sea
> on your left "curved" just after the end of such
> wide bay, giving the same impression od "cuving"
> just after
> the Promontory of Cassandra.
> On your right you have the same impression that
> the sea "curved" after the Promontory I said.
> This impression is given by the shape of the in
> front coast of Greece influenced by the shape of
> Mount Olimpus
> and other Hills and Mountain, and the sea looks
> like "bend down" between the Cassandra promontory
> the Greek coast which is a bit more advanced
> respect that of Cassandra.
> In short word it seems that sea horizont
> line "bend" both on the left and on the right of
> the observer.
> That's why my daughter asked the question of
> curvature..... and of course I could not explain
> to her, due
> to her age (9 year old), a complicate explanation
> which I pointed out above.
> It was just a good occasion to draw her attention
> to the fact that the Earth is a sphere.
> Such kind of "visual phenomenon" can be also sese
> in some part of Liguria's coasts in Italy and as I
> also in Tenerife (one of the Canary Island) in the
> locality called "Los Goigantes".
> I can go ahead with other part of the world I have
> visited but I think that is enough to understand.
> About being in the middle of a huge sea or ocean:
> Only if you are aboard of a Big ship (Cruise or
> Commercial one, does not matter) you can clearly
> see the
> curvature of the horizzont.
> And I have also experienced it.
> More... many years ago I crossed few times, by
> car, the desert route which link Amman to
> I stopped few times just to not seat long hours
> driving (when the road is straight and without
> it is very Dangerous if you do not stop at least
> evry two hours).
> Well then, looking to the horizont, believe me or
> not, I saw the horizont curvature....
> So the phenomenon of perspectives play a
> huge role in each person strictly depending
> from the
> characteristics of the landscape.
> That's why "Flate Earth's believers" are based
> only by the vision of their eyes, like it was for
> people" millennia ago.
> So talking about what eyes can see, the visional
> perspectives, along paradolia, are a common
> which affect all human beings.
> I hope to have clarified the question.