A fully comprehensive representative model of our national macroeconomics is derived from first principles, using the absolutely minimum necessary amount of analytic logic. Two vital features of the procedure for portraying our society are that it is to be modeled by using a diagram, and that it...

The 1928 eruption of Etna, Sicily, although the largest such event this century, has not been studied in detail. In this paper the nature of the eruption, the destruction it caused – including the complete devastation of the town of Mascali (pre-eruption population ∼ 2,000) – and emergency...