Do you know how, when you see books in the shops titled "mysteries of the ancients" or "secrets of the aztecs" and wonder - if it is so secret, how come you know it? Well I think this bloke has genuinely solved one mystery, and it doesn't look like he will be made rich from royalties from the gullible:
http://www.youtube.com/watch?v=lRRDzFROMx0
I remember a similar claim for the building of the pyramids some time ago, but can't recollect the details.
And your point is, argonavis?
well the ancients were just as clever as we are, but they didn't posess any special knowledge. Since the Enlightenment, our knowledge of the world around us surpasses by many orders of magnitude the knowledge of the ancients.
I often thought that the burning of the Great Library at Alexandria and the sacking of that Monastry/Catherdral thingy in the UK by the Vikings around 1000AD was a great tragedy, but I suspect that much of the knowledge thereby lost was mostly superstition and belief, like the dead end of alchemy and astrology, rather than science and knowledge.