Earth Sciences 1086F/G Lecture Notes - Lecture 11: Hyperbolic Trajectory, Hematite, Seismometer
13 Oct 2017
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1. 0 introduction: special interest b/c there was thought that life was there. 100 years ago, there was a contest put on my france (guzman) for the first person who found life on another world. He also created martians green skin: 1938 so familiar with life on mars that they thought earth had been invaded. 2. 1 orbit and rotation: day on mars is 24 hours and 40 minutes; a martian year lasts 1. 88 earth years. The tip of the planet allows seasons (25: the northern/southern hemispheres turn opposite as spring approaches southern hemi, white polar cap shrinks and greyish surface markings grown darker and greener. 3: the amount of atmosphere depends on how fast it releases internal gas and how rapidly t loses gas from its atmosphere. The rate at which a planet losses depends on mass and temperature: mars has a mass less than 11% that of earth and its escape velocity is 5km/s (half of earths).
