Engineer Isaac Moreno's research focuses on recovering ancient measuring tools and techniques and trying them out. For years, he has studied the way Romans built to perfection roads, bridges aqueducts and harbours.
In this sense, his experimental research concludes Romans used chorobates, set squares or dioptras when levelling the ground, drawing long lines and designing roads or aqueducts. Contrary to other existing and considered valid theories, gromas or the well-known 10-feet-bar - decempeda or pertica- were used to measure smaller areas, as it was the case when dividing family land or rearranging rooms or surfaces.
Listening to Isaac Moreno's explanations, one will learn ancient "scientists" already new the Earth was round- an issue never questioned. In III BC, Eratosthenes calculated the Earth's diameter by means of simple trigonometry computation, obtaining a result of 252.000 stadiums (some 39.614 modern kilometres, being 40.008 the scientifically acknowledged diameter).
Years later, other scientists recalculated Eratosthenes' results reducing the Earth's diameter in some 200.000 stadiums, a clearly erroneous figure. In XV century, Christopher Columbus travelled east towards India relying on the latest calculations and thus believing it accessible by sea. Should he have accepted as true the figure of 252.000 stadiums he might have reconsidered a voyage of such magnitude.
Apart from publishing numerous articles specialised in roman roads, aqueducts, sea harbours and other engineering constructions, Isaac Moreno has taken part in the Tarraco Viva festival, lecturing a public with certain knowledge of topography and civil engineering.