Notes From Reading Flashcards

1
Q

who proposed the idea of the big bang?

A

Gamow = universe started at a point

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2
Q

who disagreed with Gamow?

A

Hoyle = he proposed the steady state theory which suggests the universe is infinite and that matter is being created all the time at just the right rate

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3
Q

evidence of the big bang theory?

A

if it was true, the beginning of the universe would have been VERY hot, therefore they were looking for some kind of proof of this heat.
A wavelength for the heat radiation was determined and then found by Wilson and Penzias = CMB (cosmic background radiation)

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4
Q

non-uniform CMB?

A

tells us the early universe was not uniform which is how everything was able to be formed. If it was uniform, there would be nothing

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5
Q

Inflation is…

A

initial stage that lasted about 10^-24 seconds where the universe expanded about 10^50 times in size = prevented collapse of initial universe, however, had inflation lasted any longer, it would have been too far apart and cold

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6
Q

Spectral types?

A

OBAFGKM = often beck angrily flies to Greenland killing moons

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