Why is it Dark at Night?

Channel:
Subscribers:
5,780,000
Published on ● Video Link: https://www.youtube.com/watch?v=gxJ4M7tyLRE



Duration: 3:53
4,571,175 views
79,093


Have you ever wondered why you look up and see a dark sky at night?
Help share science with the world: http://translate.minutephysics.com
Subscribe to MinutePhysics!

MinutePhysics is on Google+ - http://bit.ly/qzEwc6
And facebook - http://facebook.com/minutephysics
And twitter - @minutephysics

Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Music by Nathaniel Schroeder

Thanks to Nima Doroud and Niayesh Afshordi for contributions and to Perimeter Institute for support.
http://www.perimeterinstitute.ca

Created by Henry Reich Created by Henry Reich







Tags:
dark
sky
redshift
red
shift
Olber's
Paradox
stars
infinite
race
walking
sport
millennium
vsauce
tunnel
hollow
earth
higgs
boson
big
bang
theory
cosmic
microwave
galaxy
universe
electromagnetism
strong
weak
gauge
arbitrage
force
canada
money
infinity
moon
sun
dimension
string
light
einstein
special
relativity
black hole
science
Tides
gravity
Neutrino
photon
lhc
electron
atomic
nuclear
General
Dark
energy
Minutephysics
minute
physics
Henry
Reich
cat
schrodinger
Perimeter
Institute
god particle