Lecture 2 Origins of water

Lecture 2 Origins of water - Students who did not attend...

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1 Students who did not attend lecture 1 See me after class for a syllabus and course basics Water’s Beginnings ‘The seeds of everything have a moist nature”. Thales of Meletus “the father of science” (Circa 600 B.C.) “Water is the origin and essence of all things” Spherical Earth Moon reflected light Eclipse A multitude of words is no proof of a prudent mind. “The most difficult thing in life is to know yourself.” Quotes
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2 ice Ice core Ice and liquid clouds Oceans Essence of all things? Water in the Solar System ice Radar Ice Temp. and P o Ice core Ice and liquid clouds How large is the earth? Radius: 3986 mi (4000 mi) Diameter: 7973 mi (8000 mi) Circumference: 25,048 mi (25,000 mi) When was it calculated? Large? 8000 miles 870,000 miles
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3 How much water is there? 400 billion billion gallons 326 million mi 3 (one estimate) 688 miles Total Earth Water = Total Earth Water = 326 million mi 3 Total Earth Water = Total Earth Water = 326 million mi 3 841 miles 3476 miles
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4 93 million miles 1 cubic mile Distance to the sun? 326 million mi
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Lecture 2 Origins of water - Students who did not attend...

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