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flow of products, people, services, or information among places, in response to localized supply and demand.
Spatial interaction 17
Peop connect, depend = world
A family on the east coast decided to move west but along their journey they found work in central U.S.
good ability to move. Low=near source
High= easy transport
as the distance between two entities increases, the effect of their interaction decreases.
Geographic scale (20)
The annihilation of time and space (Ex. whereas in the 1500s it took years to transfer information around the world by ship, today it takes only seconds via satellite)
Tech, comm, reduce dist
Time space convergence 20-
Ex Dist btwn satellite & Target
(26) Use Satellite, radio
signals determine earth peop, place, feature
Global positioning system (GPS)
a computer system capable of capturing, storing, analyzing, and displaying geographically referenced information; that is, data identified according to location.
may show that certain marshes receive little rainfall.
Geographic Information System(gis)(27)
allow demographers to identify changes in the age and sex composition of populaces