Geography 2090A/B Study Guide - Comprehensive Final Exam Guide - Earth, Page 3, Solar System

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Traffic management (new york, toronto, etc) traffic grids become manual. These ideas did(cid:374)(cid:859)t gai(cid:374) a(cid:272)(cid:272)epta(cid:374)(cid:272)e u(cid:374)til the europea(cid:374) e(cid:374)aissa(cid:374)(cid:272)e (cid:894)(cid:1005)(cid:1009)th-16th centuries) Mid 16th century polish catholic cleric nicolaus copernicus began promoting heliocentrism (planets revolve around the sun) 1590s kepler establishes fundamental laws of the solar system. Scientists in india and china developed rockets as early as the 13th century. In the 1880s russian high school reach konstantin tsiolkovsky. 1920s us physicist robert goddard built and launched the first liquid fuelled rockets (logic of fuel over gun powder is that fuel will feed in slowly instead of burn everything at once) Goddard was heavily criticized for his ideas that rockets will be able to leave earth. It was assumed that a rocket would(cid:374)(cid:859)t (cid:449)ork i(cid:374) spa(cid:272)e (cid:271)e(cid:272)ause there is (cid:374)o at(cid:373)osphere to push agai(cid:374)st the rocket. 1960s, the american public becomes aware that von braun lead of rocket research was helping the nazis.

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