AST 111 Lecture Notes - Lecture 15: Solar Thermal Collector, Boiling Point, Venus Express
Document Summary
Ast 111-lecture 15 (taken by a friend, because i was absent) 11-6: the dense atmosphere of venus and the thin martian atmosphere are dramatically different but have similar chemical compositions. The atmospheric pressure at the surface of venus is 90 times larger than earth"s. The equivalent found under 1km of water on earth, at 490 c. Spacecraft usually only live for a few minutes. Because venus rotates so slowly it"s air patterns are radically different than earth"s. Heat from the sun warms the equator of venus and then the heat travels outward, but on earth, a faster spin, weather patterns and the coriolis effect prevent that from happening. Solar heating does produce fast wind speeds in the upper clouds. 350 km/h so clouds can circle the planet in 4 days (consider that it takes. Hurricanes that long to travel across one country)
