Most of the math is used to fix the rise and run — that is ... write to us c/o HOME WORK, The Sun, 501 N. Calvert St. Baltimore, 21278. Questions of general interest will be answered in the ...

Can math predict the rise and fall of empires ... (1500 BCE to 1500 CE), the model used these three criteria to run simulations: the presence of agriculture, the ruggedness of the terrain ...