Hubble's Law, the Doppler Effect, and an Expanding Universe

Explanation of Hubble's Law and how this relates to the Doppler Effect and the red shifting of nearly all deep space objects. Connections of how this relates to the Big Bang and the expansion of the universe.

Licensed under Creative Commons: By Attribution 3.0

[monkeyyhatt]

Great videos! you're helping me with preparations with my final exam :)

[TheColdCrafter]

This guy looks like he's about to cry

[ba.h]

The best explanation I've seen so far! Thank you :)

[raiinydaze]

Great video! Thanks for clearly and concisely explaining the topic.

[haylee]

This guy looks like he’s in a lot of pain

[aneclip]

dude i want to use some portion of your video that portion with moving ripples ok???
will attribute this link to my junior breakthrough will be doing voice over....

[rkreike]

Q: If there is a redshift of light in the universe because of distance,
then galaxies that move away with constant velocity seem to move away with acceleration.
If so, it is a missing fact in many documentaries about light in the universe?

[jesussavedrjm]

big bang came out after the red shift discovery as a way to explain the shift

[leowu]

this is so helpful!! Thank you so much!

[qwerrl]

Great content and good way of explaining.

[katrinabittner]

thank you! this really helped me for my astronomy final!

[elmerfudd]

Could red shift be nothing more than entropy at work? As light travels for millennia, it looses energy over time and moves toward the red. Maybe the universe isn't expanding, but, just getting older... Convince me that I'm wrong...

[DanielHamilton]

We are moving away from the earth? <1min in

[Greebstreebling]

Big assumption that red shift describes velocity for all cosmological objects. There is a significant body of evidence which shows that it doesn't, and that evidence has been conveniently ignored, because it doesn't support the accepted norm. It's always more informative to operate with head above the sand, and that's where professional astronomers need to go...

[davidgrout]

Great explanation, but I have two words for you - lavalier microphone. Also, fix the spelling error (Univserse).

[egggmann]

What proof is there that redshift should be interpreted as the the planets moving? I can’t find anyone who will offer proof? Light waves aren’t even confirmed to actually be waves, or particles. So how do they know the redshift isn’t just from gravitational distortion? Where’s the proof or is this a religious belief?

[hicham]

[Quran 51.47] ((And the heaven, We built it with craftsmanship and We are still expanding)).
The creator revealed this information 1400 years ago in his last revelation before Hubble.
Any sincere scientist who studies the many scientific facts revealed in the Quran can only conclude the Quran is from the creator of this universe.

[No-oneInParticular]

"Hello, I'm going to regurgitate a text book to you now. Thanks for listening."

Is no one teaching critical thinking anymore? It just seems like everyone is being taught facts to remember rather. Which is turning people into memory devices...what is it we call them...COMPUTERS!