(and philosophical issues)
There is, maybe, nothing in Nature, more ancient than motion, and on it there are not just few volumes, neither of small size, written by philosophers; however among its properties there are many that, even if well worth to be known, are not up to now observed or demonstrated...(in particular) nobody, that I 'm aware of, has demostrated that a falling body starting from rest, covers, in equal times, spaces that have among each other the same proportion that the odd successive numbers (after one) have among each other.