Hiw To Build A Universe Flashcards
Non-dimensional dot big bang theory called
Singularity
Milky Way is almost _ light years across
100,000
Thought to be between _ stars in Milky Way (range)
100-400 billion
Universe is thought to be _ years old
13.7 billion
Term Big Bang proposed in
1920
Who proposed Big Bang theory
Georges Lemaître
George Lemaître was a _
Belgian priest scholar
Big Bang didn’t become a notion in cosmology until
Mid-1960s
Big bang became a notion in cosmology after
2 you g radio astronomers made a discovery
First radio astronomer name A
Arno Penzias
Second radio astronomer’s name R
Robert Wilson
In 1965 while using large communications antenna, AP and RW were troubled by
Background noise
Background noise was a _ that made any experimental work impossible
Steady, steamy hiss
Where was the large communications antenna
Bell Laboratories at Holmdel New Jersey
50km away from AP RW, _ was working on finding what AP RW found
Princeton University team of scientists led by Robert Dicke
Princeton scientists pursuing idea suggested in 40s by
Russian-born astrophysicist George Gamow
Gamow said if you look deep enough into space, you should find
Cosmic background radiation left from Big Bang
Radiation from big bang would reach earth in the form of
Microwaves
Penzias and Wilson were hearing
Microwaves from big bang
Penzias and Wilson had found
Visible part of the edge of the universe
The edge of universe that Penzias and Wilson found was _ miles away
90 billion trillion
RW and Penzias were seeing first photons converted into
Microwaves
