GEOG 2050 Chapter : Into To Geo
Document Summary
System: network of relationships: open: most are open. Vs. closed: get resources from it self: feedback, a back and fourth system is a negative system. The system will turn on when something goes bad and turn off when it is at a normal level again. Stabilizes a system: positive: goes the same direction. Circuits keep moving in same direction until it crashes. Doesn"t last forever: steady: moves up and down but doesn"t move very much. Changes are very little and you don"t notice: dynamic: changing trend over time. Because it keeps changing then it: system equilibrium reaches a tipping point eventually. Separates east and west: each line is called meridians. Each pair of meridians is a great circle: prime meridian is the line of longitude. Greenwich mean time (gmt)- our consistent universal time: the basis of time- earth revolves 360 every 24 hours (or 15 per hour= 360/24, 24 time zones across the globe.
