10.2 big bang theory by sunny and austin. 10.1 the big bang theory by the end of section 10.1 you...
TRANSCRIPT
10.2 Big Bang TheoryBy Sunny and Austin
10.1 The big bang theoryBy the end of section 10.1 you should be able to understand the following:• How Edwin Hubble helped astronomers tracing the
paths of movement backwards• What is cosmic background radiation• That microwave radiation causes cosmic background
radiation
Hubble’s observed the galaxies moving away from one another
Approximately 13.7 billion years ago there was an unimaginably tiny volume of space
space rapidly expanded to an immense size
Big bang theory isn’t the only theory about how the universe formed
Hubble’s Observation
Edwin Powell Hubble
That catastrophic event First described by a Belgian priest and
physicist Georges Lemaitre in 1927 Known as the Big Bang Theory
Two American astronomers Arno Penzias and Robert Wilson made a discovery that is a important piece of evidence
Arno and Robert were monitoring microwave radiation in space
Cosmic Background Radiation
Arno Penzias and Robert Wilson
Arno and Robert kept hearing background noises they made several adjustments
After they found out they were detecting cosmic background radiation
Cosmic Background Radiation (cont.)
This is the radiations that scientists believe is left over the big bang expansion. The red area’s indicate the period of slightly hotter temperatures. The blue area’s are the periods that have slightly cooler temperatures.
important piece of evidence by the cosmic background explorer(COBE)
The satellite was launched in 1989
Launched by the National Aeronautics
Additional supporting evidence
Satellite by NASA
2001, another spacecraft sent To gather more information about cosmic
background radiation Called Wilkinson Microwave Anistrophy Probe
(WMAP) Was able to get more precise measurement
than have been ever made.
Additional supporting evidence (cont.)
Who first describe the big bang theory, he is also a Belgian priest and physicist?
Who were the two astronomers who made discovery which was the important piece of evidence?
Questions
What does COBE stands for? What does WMAP stands for? Discuss what is big bang theory?
1. Georges Lemaitre2. Arno Penzias and Robert Wilson3. Cosmic Background Explorer4. Wilkson Microwave Anistrophy Probe
Answers
5. Due to the very short time, all the matter and energy expanded in the universe was formed, that catastrophic event was called Big Bang Theory.
Answers cont.
Resourceshttp://en.wikipedia.org/wiki/Edwin_Hubble
http://en.wikipedia.org/wiki/The_Big_Bang_Theoryhttp://www.google.ca/imghp?hl=en&tab=wi
http://www.youtube.com/http://
en.wikipedia.org/wiki/Cosmic_Background_Explorer