For long, Astronomers and Egyptologists separately studied the astronomical orientation of temples and tombs, the astronomical content of paintings and writings dating from ancient Egypt. Otto Neugebauer and Richard Parker were among the very first to carry out research together in the sixties. They bequeathed to us a very well-known trilogy entitled Egyptian Astronomical Texts which, still today, some fourty years later, remains the most extensive source of informations into ancient Egyptian Astronomy. They were followed, in the nineties, by two French researchers, the Astrophysicist Eric Aubourg and the Egyptologist Sylvie Cauville, who both studied the astronomical content of the famous round Dendara zodiac.

Such examples of interdisciplinary collaboration, although fruitful, unfortunately are rare. A better knowledge of the astronomical orientation or content of any of the ancient Egyptian remnant however requires both abilities, consequently, such collaborations. As large is his/her knowledge of the ancient Egyptian civilization, an Astronomer will never become an Egyptologist, indeed. In the same way, as large is his/her knowledge of the sky, of the objects filling it, of the movements driving them, an Egyptologist will never become an Astronomer. Not only because our respective backgrounds differ, but essentialy because we do not have the same approach of a given problem. Since last century, we, exact scientists, favour a probabilistic to a determinist approach, indeed. In other words, we consider that many different theories can explain a given fact - an observation, a measurement, etc. To each one of these theories naturally is associated a probability which increases or decreases as our scientific knowledge increases.

Each one of the Culture Diff' achievements is based upon this probabilistic approach. The content of the dossiers dealing with Astro-Egyptology mainly results from the use of original astronomy softwares. The probability associated to each one of the numerical results obtained, to each one of the historical data mentioned, more generally, to each one of the hypothesis put forward, will naturally increase or decrease according to the forthcoming scientific discoveries. Since our knowledge of ancient Egyptian Astronomy does not cease to increase, the content of the Culture Diff' dossiers and the user interface of the Culture Diff' softwares are regularly updated. That is the main reason why their reading and using can only be made from this Webserver.