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The solar eclipses were studied initially by the Assyrians-Babylonians who were able to identify the cycle of about eighteen years called "Saros" that mark the rhythm of the Sun and Moon eclipses, but it was thanks to the geometrical knowledge that Thales was able to give first explanations of this phenomenon is clearly visible the 04/01, for example from Italy (especially the North). The partial eclipse of the Sun will start at seven forty-five am and will force those who want to observe to supply with appropriate type of welder very dark or tinted glasses so as not to damage the retina, although experts have indicated that the haze and dust might mitigate the power of the sun, but it is still preferable to protect the eyes. To remember that Hipparchus was responsible for the complex theory of epicycles and deferential to calculate the geometries of the sky, theories that were then very developed and completed by the Pythagoreans.

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Telephone: +39 338 1809310 Date: 04/01/2011 article n°: 1465 _____________________________________________________________________________________________________