LAB-EXP - 1F03 Lab The Expanding Universe Summary In this...

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1F03 Lab The Expanding Universe Summary In this exercise, you will use a two-dimensional analogy to explore the expansion of the Universe. Background and Theory The Hubble Law tells us that our Universe is expanding. We observe galaxies, find their distances and their velocities, and find that they are all moving away from us. The more distant the galaxy, the faster it is moving away. From this information, we can estimate the age of our Universe. We assume that the Universe has always been expanding at the same rate, then we know how long distant galaxies have been traveling in order to get where they are today! Galaxy Number first measurement second measurement d difference velocity v Procedure You should work in pairs. One person can hold the balloon while the other does measurements. 1. Before the balloon is blown up, draw and number 10 galaxies on the balloon. Mark one of these galaxies as the reference galaxy. Try to avoid drawing any too close to the neck of the balloon. 2. Blow up the balloon a little bit to the point where it is rounded. DO NOT TIE IT SHUT!
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This note was uploaded on 04/10/2011 for the course ASTRONOMY 1f03 taught by Professor Wadsley during the Spring '11 term at McMaster University.

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LAB-EXP - 1F03 Lab The Expanding Universe Summary In this...

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