The first was Eratosthenes, with his ‘gnomon‘, the very simple precursor of the sundial consisting of… a stick fixed on the ground. And with that, in the 3rd century BC, he measured the earth’s circumference with an error of 3%. This is to say that where there is ingenuity, there will be results (research has always suffered from insufficient funds).
The lineage of Eratosthenes and all the endeavors made throughout history to understand what our planet is like, in detail, are S Earth Observation Sciences , an umbrella discipline includes so many indispensable others: physics, meteorology, climatology, geology, volcanology, hydrology, mathematics, computer science, and all kinds of state-of-the-art technology.
All at the service of His Majesty the Satellite, the modern Gnom1, protagonist of Alessio Schreiner and Donald Soffritti‘s story.