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Table of contents

EXPANSION OF THE UNIVERSE

Introduction

Methods to measure distances

IC 1

…DOPPLER’S EFFECT

Slide 5

IC 2

How it was discovered:

Today: Relationship between galaxies distance & speeds of recession is known a “HUBBLES LAW”. 2 assumption made on what Hubble Law show us as the universe as a whole:

IC 3

The universe can be similar to the surface of an expanding balloon. - Imagine balloon with dots on it. - When balloon is blown, dots move away from other at rate proportional to distance between dots. Assume: Universe may have been compressed into a much smaller space in past.

The Big Bang

IC 4

Slide 10

IC 5

Expansion Affect:

Continue…

Inflationary Universe

Dark matters

Dark matter cont…

1) Is the universe, all of space and everything in it, infinite or finite?

Slide 17

2) Will the Universe expand forever?

Slide 19

Conclusion…

Important Concepts

Author: Maxine Phaisalakhani

E-mail: maxzi@hotmail.com

Further information:
Second seminar presentation