ASTR Spring 2008 Joel E. Tohline, Alumni Professor 247 Nicholson Hall [Slides from Lecture18]
A Few Additional Ideas from Chapter 4 Universal Effects of Gravitation Center of Mass (and related concepts) Tides –Influence of the Moon on the Earth –Influence of the Sun on the Earth –Influence of the Earth on the Moon –Interactions between Galaxies
A Few Additional Ideas from Chapter 4 Universal Effects of Gravitation Center of Mass (and related concepts) Tides –Influence of the Moon on the Earth –Influence of the Sun on the Earth –Influence of the Earth on the Moon –Interactions between Galaxies
A Few Additional Ideas from Chapter 4 Universal Effects of Gravitation Center of Mass (and related concepts) Tides [ differential effects of gravitational acceleration ] –Influence of the Moon on the Earth –Influence of the Sun on the Earth –Influence of the Earth on the Moon –Interactions between Galaxies
A Few Additional Ideas from Chapter 4 Universal Effects of Gravitation Center of Mass (and related concepts) Tides –Influence of the Moon on the Earth –Influence of the Sun on the Earth –Influence of the Earth on the Moon –Interactions between Galaxies
A Few Additional Ideas from Chapter 4 Universal Effects of Gravitation Center of Mass (and related concepts) Tides –Influence of the Moon on the Earth –Influence of the Sun on the Earth –Influence of the Earth on the Moon –Interactions between Galaxies
A Few Additional Ideas from Chapter 4 Universal Effects of Gravitation Center of Mass (and related concepts) Tides –Influence of the Moon on the Earth –Influence of the Sun on the Earth –Influence of the Earth on the Moon –Interactions between Galaxies
A Few Additional Ideas from Chapter 4 Universal Effects of Gravitation Center of Mass (and related concepts) Tides –Influence of the Moon on the Earth –Influence of the Sun on the Earth –Influence of the Earth on the Moon –Interactions between Galaxies
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Concept of spectrum (intensity vs. color) –Color identifies wavelength (and frequency) Entire electromagnetic spectrum
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Concept of spectrum (intensity vs. color) –Color identifies wavelength (and frequency) Entire electromagnetic spectrum
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Concept of spectrum (intensity vs. color) –Color identifies wavelength (and frequency) Entire electromagnetic spectrum
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Concept of spectrum (intensity vs. color) –Color identifies wavelength (and frequency) Entire electromagnetic spectrum
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Concept of spectrum (intensity vs. color) –Color identifies wavelength (and frequency) Entire electromagnetic spectrum
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Concept of spectrum (intensity vs. color) –Color identifies wavelength (and frequency) Entire electromagnetic spectrum
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Color identifies wavelength (and frequency) –Concept of spectrum ( intensity vs. wavelength ) Entire electromagnetic spectrum
Wavelength and Frequency Wavelength = Frequency = c = speed of light = c
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Color identifies wavelength (and frequency) –Concept of spectrum ( intensity vs. wavelength ) Entire electromagnetic spectrum
Chapter 5: Nature of Light Speed of Light –Finite –How is the speed measured? Colors of (visible) Light –Rainbow –Color identifies wavelength (and frequency) –Concept of spectrum ( intensity vs. wavelength ) Entire electromagnetic spectrum