GEOG 5 Lecture Notes - Lecture 7: Egyptian Pyramids, Distance Decay
Document Summary
Geog 5 notes: reilly"s breaking point law: predicts distance from city i to market boundary. Pi: 25000 people, pj: 100000 people and distance between them is 100 miles (40 miles from city i, 60 miles from city j) . 2 cities of equal size have a trade area boundary midway between the 2 cities. Ex: disease, ideas, tools, technology, beliefs: geography always about change- humans/culture change over time; cumulative change: changes dependent on one another. Actively trying to spread culture to others in a new area 9ex: trying to make everyone else brush their teeth at 8pm: contagious: rapid, widespread contact diffusion- people closer to source adopt innovation distance decay. Ex: walmart spreads to diff locations throughout u. s: hierarchical: innovation jumps from one major node to another, skipping smaller nodes; diffusion to large/important areas first, then lesser areas later. River valley; modern- silicon valley: cultural convergence: share technologies, organization structure & cultural traits.
