Astronomy Chapter 5
Light is the visible form of electromagnetic radiation (pg 75), an electric and magnetic disturbance that
transports energy at the speed of light. The wavelength (pg 75) of visible light is usually measured in
nanometers (pg 76) (10 -9
ASTRONOMY CHAPTER 4
Plato and Aristotle shaped history of astronomy
Used first principle w
hich means something held to be obviously true.
Three important ideas of the ancient universe
Ancient philosophers accepted as a first principle that the heavens we
ATRONOMY CHAPTER 1
Here and now
1.1 Where are we?
We are Planter Walkers
Planet we live on whirls around a star that moves through a universe filled with other stars and galaxies.
In this Chapter will consider three important questions
Where are yo
Chapter 1: INTRODUCTION
What is the definition of Astronomy?
What makes up matter?
What do we see in the night sky?
What is the effect of Earths rotation?
What is the effect of Earths revolution?
What is the effect of the Moons rotation and