The Cosmic Microwave Background and the Observable Universe

If you're interested in the Universe you've seen the map of the observable universe. But maybe you don't quite know where it comes from. What dictates it's boundaries? and what do the colors represent?
On top of this you may have heard of cosmic microwave radiation left over from the beginning of the universe. That seems... well kind of impossible. And how is there ALWAYS microwave background radiation?

Even more interesting are the secrets revealed when you start critically analyzing what's happened to this light during its billion years journey to earth.

If you have more questions maybe stick around for the next video... *hint*

[va]

For 6 years im spending hours of day watching youtube videos, lectures of physics, astrophysics, cosmology, quantum mechanics. And your visualization and explanation of things are incredible. Тhe thing you showed how the plasma at the hot state become transparent gas was so good. This channel has criminally low subscribers. You are as good as Pbs- space time.

[devin]

I'm a student astrophysicist and I have to say that your videos are an excellent way to introduce people to the concepts in astrophysics and cosmology. It took me far long than I'd like to admit to conceptualize the idea of geodesics and curved spacetime giving the appearance as a "force". The video you made on would have made that journey MUCH easier. Just as this video explains clearly the concept of the observable universe.

My friends often glaze over when I attempt to introduce them to these concepts as they are hard to explain without going into the mathematics. In the future I will be referring them to your videos. Please keep up the good work spreading knowledge and making my passion more accessible. cheers

[SeanMcGartland]

I've watched many similar videos, but your explanations always take me a big step closer to more fully understanding. Thank you for that! It's like you remember some of the concepts that tripped you up when you were learning, and address those knowing that others will likely be experiencing the same thing.

[michaelvindberg]

Every time I find something unique in your videos. Often many channels have pretty similar contents on particular topic, but you always surprise me with a new approach in narration and visualization. More people should know about your channel.
Throughout all your videos you convey the subtlety and sheerness of your view of the world.
As always, very good job.
Thank you

[davidmurphy]

That was amazing. You're getting better and better.

[adamdggg]

I never got as much existentialist angst than when I learned about the expansion of space decreasing the observable universe. Billions of years from now, some aliens will look at the stars and be completely unable to see the background radiation. The beginning of the universe will forever be lost to them. It just feels so wrong that future scientists will be denied key insights to the universe. And then the allegory of a cave makes we wonder if we missed out on something too.

[terrynoah]

Just found your account. Seriously a hidden gem. I will be watching every video.

[MasonAlvatros]

There are two kinds of people, people are unable to comprehend the universe and those who have never even tried

[arya]

Your best video. Shame it has such a low view count

[FabianG-kxfp]

A very interesting Video
The content is Researched very well and right. I will watch your Videos everytime starting from now.
Good luck at your futher way on youtube :)

[pbnjsamich]

This is a super underrated YouTube video for understanding this topic. It explains some of the questions others don’t that left me wondering. Good job👍

[verusyn]

Underrated asf I am sad I didn’t come across this channel sooner

[PatricioHondagneuRoig]

I find it almost insulting that you have this few views here, your videos are fantastic!

[pzgamerch]

I don't know how many videos I watch about the same topic that you choose but still learning new things and understand more than before.

[davestewart]

Just wow. Your videos are so clear and easy to understand. Love it

[Crw]

As an outsider, i still find it a tad bizarre to observe that our models fit our observations less and less the farther away we go from the place to which we fit those models, and not _call_ it a model-error (due to e.g. the model using a mathematical formulation that is very close, but not perfectly true to reality), but space-time expansion, ancient universe, dark energy and dark matter.
At the same time, this approach does give you something to experimentally search for.

[Brucebod]

I frickin' _love_ your videos! Thank you 👍

[nafeesaneelufer]

Why do we have hotter and colder part of CWB? Why can't we have CWB at uniform temperatures?

[prairiemain]

Hydrogen, not Helium (but with a small percentage of Helium). It goes downhill from there.

[hanssacosta]

Wowww amazing content and explanations man, the way u explain things makes me more passionate about space, well done you 🙌🙌🙌🙌