Because of a political dispute, the Christian group in Alexandria had her stripped publicly and executed. Her demise is sometimes taken as the end of the period of the Alexandrian Greek arithmetic, although work did proceed in Athens for one more century with figures corresponding to Proclus, Simplicius and Eutocius. Although Proclus and Simplicius have been extra philosophers than mathematicians, their commentaries on earlier works are useful sources on Greek arithmetic. Nevertheless, Byzantine mathematics consisted mostly of commentaries, with little in the best way of innovation, and the facilities of mathematical innovation were to be discovered elsewhere by this time.
Roughly speaking, the pure sciences (e.g. biology, chemistry, physics) are thought of “exhausting”, whereas the social sciences (e.g. economics, psychology, sociology) are usually described as “soft”. Nanotechnology as outlined by dimension is of course very broad, including fields of science as numerous as floor science, natural chemistry, molecular biology, semiconductor …
