1. SATELLITE- COMMUNICATIONPresented by, R-THANDAIAH PRABU M.E., 2. “Working of satellite” 3. Satellite • The word satellite originated from the Latin word “Satellit”-…

Slide 1 Slide 2 Sample Determine the net gravitational force acting on the Earth during a total lunar eclipse. m sun = 1.99 x10 30 kg m moon = 7.36 x 10 22 kg r sun = 1.5…

Slide 1 Slide 2 The Search for Extra-Solar Planets P1Y* Frontiers of Physics Feb 2007 http://www.astro.gla.ac.uk/users/martin/teaching/ Dr Martin Hendry Dept of Physics and…

Slide 1Orbit of Mercury: Following Keplers steps NATS 1745 B Slide 2 Objective You will use a set of simple observations, which you could have made yourself, to discover…

Slide 1FINISH COPYING THIS INTO YOUR NOTES Slide 2 The Birth of Modern Astronomy 22.1 Early Astronomy Nicolaus Copernicus a Polish Astronomer © Copernicus concluded that…

1.Earth Science Origin of Modern Astronomy2. Early history of astronomyAncient GreeksUsed philosophical arguments to explain natural phenomena Also used some observational…

Chapter 13 Origin of Modern Astronomy 22.1 Early Astronomy  Astronomy is the science that studies the universe. It includes the observation and interpretation of celestial…

Slide 1 Slide 2 Chapter 9 & 10 Gravity Slide 3 Pythagoras (550 BC) n Claimed that natural phenomena could be described by mathematics Slide 4 Aristotle (350 BC) n Asserted…

Slide 1 1 Gravity and Motion II Heliocentric Astronomy Slide 2 2 Topics l Recap l Heliocentric Astronomy l Copernicus l Brahe l Kepler l Galileo l Newton l Summary Slide…

Slide 1 Kepler’s Laws Slide 2 Johannes Kepler Mars’ orbit is not a perfect circle, it is elliptical The speed of Mars’ orbit changes Closer to sun = faster Farther…