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Origins of the Universe
Transcript of Origins of the Universe
history of the Universe Big Bang Theory!
page 232-233 Complete Prac 7.2.2 on page 236 Read the handout about different theories See handout and pg 233 Evidence includes:
Cosmic microwave background radiation START HERE FINISH HERE
A moment-before time existed
There was a 'point'- a singularity
Massive energy burst- 'from where'??
The Universe started (15 million years ago) to expand at an incredible rate in a 'very short' amount of time. Time began here, as we know it.
Matter + Anti matter interacted in a fog of radiation
Quarks produced (particles that make up protons and neutrons)
Neutrons and protons were produced
Elements such as hydrogen started to form helium, lithium
More atoms formed
Thick fog of radiation cleared and light was able to travel through the universe for long distances
Hydrogen from clouds
Clouds collapsed with cooling
Galaxies, Stars, Planets
STEADY STATE THEORY
Fred Hoyle did not believe the universe came into existence at a specific time.
He believed that the universe always existed in the same form as it looks now and will forever be the same.
The Big Bang Theory-was it a bag like explosion – True of False? How the World Began (THEORY)