(well, almost) Although our school books say more than sixty years ago 
"the sun rises in the east and sets in the west" , we know that this is a generic assessment, because our experience and observation has shown that this school claim does not relate to the true (exact ) East and West.
"the sun rises in the east and sets in the west" , we know that this is a generic assessment, because our experience and observation has shown that this school claim does not relate to the true (exact ) East and West. 
Zapote Country Exhibition 19/03/2011, 06:1
 | Because the Sun (as seen from Earth) Ecuador does not flow over the land (by the blue Ecuador), but by the
| sunrise and sunset from this star, varies during year, but in a repetitive and predictable, making it possible to build monuments (observatories or calendars) astronomical and Stonehenge , Chankillo and others. |
But if the sun rises in the east and sets exactly in the west accurate, at least two days a year
, the March and September, which for practical purposes, for comments, photos, etc.., can be extended without much error, two or three days before and after the equinoxes.
In fact the two sets Photos that accompany this post, I took 19 to 21, because 20 was cloudy.
usually can not see an exit (or entry) Sun proper level of our personal horizons, for cloud cover ranges environment or we hide it until they have a certain altitude, but if we do it as soon as there is enough light to define shadows in these equinoctial days, projected shadows of vertical objects such as poles of power lines, edges of walls of buildings and our own shadow on a horizontal surface, point toward East-West
at dawn and in the direction West-East
at sunset.
that if the mark with chalk on a patio or street, or take pictures, have a fairly reliable information on the East-West, where you live.
What if you want the North-South? 
Eye is not exactly when you mark your clock at 12:00! If in doubt I can advise you.
So even today and tomorrow will also have the opportunity to take their pictures with shadows East-West in the early spring, or if it appears to wait for sunrise at the equinox of September [23 / 09; 3:04 (09:04 UTC).]
I would like to put some of his photos here.
Bambi OST - 10 - Let's Sing a Gay Little Spring Song (1942)
http://www.heavens-above.com/PassSummary.aspx?satid=25544&Session=kebgfecefooaecjeimbpnakm
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