PPT-Dynamics III: Earth rotation

L Talley SIO 210 Fall 2015 Earth reference frame Geoid Rotation definitions Centrifugal force Coriolis force Inertial motion READING DPO Chapter 723 751 Stewart chapter 76 91. Historical Perspective. Observations of Indigenous People. Enabling people to track seasons when dependent on agriculture. The Moon’s cycle of phases. The seven days are named after the Sun, Moon, and five recognized planets in ancient times. If the Earth evinces purposeful . design. , there must have . been . a designer.. The Earth does evince . purposeful . design.. Therefore, . the Earth . must . have had a designer.. Is it more reasonable to believe the design of the earth was PLANNED or that it happened JUST BY ACCIDENT?. Informed decision –making for Sustainable Development. International Center for Environmental Research www.icfer.org E-mail: . icfer@icfer.org. Dynamics of distribution of pathogenic bacteria . during . Why do our seasons change?. Rotation V/S Revolution. Rotation. is the . spinning. of a moon or planet on its . AXIS. Revolution. is planets . movement around. a star or moons movement around a planet.. CHAPTER 2 (Part 3. ). Precession. Starter. NASA PODCAST – “STORIES OF THE SOLAR SYSTEM: VENUS”. WE WILL BE TALKING ABOUT ASTRONOMICAL INFLUENCE ON EARTH. TAKE NOTE OF VENUS’ CLIMATE AND HOW IT IS DIFFERENT FROM EARTH’S DESPITE HOW MUCH THE TWO PLANETS SHOULD HAVE IN COMMON. . Sun Cycle and Seasons. 1. Objectives. To . be able to describe how the sky moves with reference to the Earth’s rotation.. To be able to predict the seasons and describe what causes them.. To be able to synthesize information on astronomical cycles to predict Earth’s climate. . The field of Planetary and Space Physics is fundamentally interdisciplinary, and requires a depth and breadth of expertise impossible to house in a single department. At Georgia Tech, our group spans several schools on campus to reflect this crucial diversity of expertise. You’ll find planetary scientists housed in Earth & Atmospheric Sciences, in Chemistry, in Physics, and in Electrical Engineering, complemented by a NASA Astrobiology Institute team in Biology and several Aerospace Engineering groups pursuing planetary mission design. Scientific research spans from planetary interiors to surfaces and atmospheres, all the way out to the ‘edge’ of a planet’s near space environment. We employ a broad range of methods, from physical and geochemical modeling to laboratory and field work to analysis of data from ongoing space missions, such as the Cassini mission to Saturn and the Mars Reconnaissance Orbiter.. Based on Functions. Passive Satellite – a communications satellite not equipped with electronic devices to retransmit communications. Such satellite acts only as a reflector of radio waves.. Active Satellite – a satellite equipped with electronic devices to receive, amplify, convert, and retransmit signals . Why do our seasons change?. Rotation V/S Revolution. Rotation. is the . spinning. of a moon or planet on its . AXIS. Revolution. is planets . movement around. a star or moons movement around a planet.. Orbital Properties of the Moon. Rotation is constant, orbital speed is not.. 0 days. 21 days. 14 days. 7 days. Same side always faces exactly toward the Earth if the Moon is in a circular orbit.. 0 days. 9. The . Tides. The . Tides. Outline. Tide . patterns & characteristics. Theoretical: What causes tides?. Real tides: effects of land/rotation. Energy considerations. Motivation: Tide . Pooling . Day and Night Rotation of the Earth Experiment Questions What does the flash light represent? When the flashlight was shined was the entire Earth covered in light? What does the part of the Earth with no light indicate? VERNAL EQUINOX. March 20, 2015, is a date that most of us recognize as symbolic of changing seasons. As we welcome spring, people south of the equator are actually gearing up for the cooler temperatures of autumn.. revolutions . wrought by Copernicus, . Kepler. , Galileo, . ….. Readings:. . (reading assignments . listed . on the web). Rohrlich. , . ch. .. . 1-4. Sklar. , pp. . . 1-18. Cushing . ch.. 4. Homework for .