More notes at http://tanguay.info/learntracker
C O U R S E 
Highlights of Modern Astronomy
Adam Frank, University of Rochester
C O U R S E   L E C T U R E 
Orders of Magnitude
Notes taken on December 19, 2015 by Edward Tanguay
orders of magnitude in terms of money
1. a dollar
10^0 dollars
one Snickers bar
2. ten dollars
10^1 dollars
a compact disc
3. one hundred dollars
10^2 dollars
dinner at a nice restaurant
4. one thousand dollars
10^3 dollars
a nice vacation
5. ten thousand dollars
10^4 dollars
a new car
6. one hundred thousand dollars
10^5 dollars
an apartment in Paris
eight orders of magnitude / size scales
1. human being
about 1 meter
10^0 meters
2. planets
next step up in structure
range from 10^6 - 10^7 meters
the jump in orders of magnitude between the size of a man and the size of a planet is larger than the different between the price of a candy bar and a nice apartment in Paris
3. stars
10^8 - 10^12 meters
dwarf stars to giant stars
4. planetary sytems
our solar system
10^13 meters
5. galaxies
vast collections of stars
10^19 meters
a jump of nine orders of magnitude, more than from man to planet
6. galaxy clusters
groups of galaxies
10^22 meters
7. super clusters
clusters of clusters of galaxies
10^24 meters
8. size of universe
the observable universe, i.e. the bubble of light which encompasses the universe which we can see
but there is most likely more universe beyond even that
our understand now is the the universe is, in fact, infinite, on the largest scales