How Old Is It - Chapter 3 - Big Bang ΛCDM Cosmology (4K)

[@Incalvideo]

I have seen this video more than a couple of times and still believe this is maybe top 3 all time universe videos just because of the pin point accuracy and communication skills to such a topic. Even not knowing anything, here, you can get more than a glimpse of our reality and how it all began

[@samuelec]

I totally agree with you about the quality but the smooth calm voice and the small pause here and there makes it hard for me to don't drift into asleep

[@gonfra]

Awesome videos like these are what makes KZbin worthy. Thanks, David!

[@stevierooster6897]

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[@stevierooster6897]

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[@stevierooster6897]

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[@stevierooster6897]

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[@stevierooster6897]

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[@gyssedk]

No sound effects, no cuts every 10 seconds, no horrible CGI effects..... Those people producing documentaries for TV should take a hint from this series. It is amazing that an "amateur" is able to produce content that is way ahead of what the professionals are able to do. This is the way content about space should be presented, and there is enough information in every one of the episodes that I need to watch them several times.

[@JamesJames-gc2kl]

"Professional" means. gets paid. they want you to keep watching, not to actually learn something.. because then you don't need them anymore ;)

[@damonlewis5782]

Am i the only one who picks videos iv already seen to listen to when going to sleep? His voice calms and soothes me.

[@chriscauley4182]

I used to listen to Carl Sagan's Cosmos while falling asleep. Try it.

[@dianalaines7942]

He has a really nice and articulated voice, it relax

[@willem9688]

Almost everyday..

[@SnoskoBorowski]

Me too 😊

[@kirbymarchbarcena]

Wow,I learned more from this video than what is taught for an entire semester.The classical music is a bonus.

[@djw457]

This guy's videos are some of the best for making these much discussed concepts understandable to ordinary people. He doesn't used hype, or toss out jargon like a lot of the superstars of science, he just carefully explains things as they have been understood to be, and therefore I get a better understanding of the ideas, a plain view so to say.

[@howfarawayisit]

Thanks.

[@jellymop]

U?

[@richardavery2894]

Yeah I agree. This honestly should be how people are taught about these topics. I have a feeling this will outlast and become a new model for how educational material goes forward...

[@corydinsmore1117]

@@howfarawayisit ♥️

[@DilsonMesquita-bc3sb]

David butler is incredible. Always good (and not superficial) videos

[@SuperScottCrawford]

This series is the best educational tool of all astronomy videos available on KZbin. It is presented in a format that is conducive to learning. It has one narrator speaking in a calm, clear manner at a pace that allows the listener to absorb what is being said. It references to other chapters in the series that allow the viewer to "brush up", if necessary, to ensure the viewer can comprehend the material. Well done, sir!

[@jamesbarratt593]

Im listening on ipad to David whilst typing this on iphone. He sure knows his stuff. Im starting his videos from the beginning of his KZbin videos 7 years ago. The dudes voice is great for astronomy. Awesome David. Thanks

[@ProntoLlegaraElDiaDeMiSuerte-1]

This answered my question about the big bang model. It makes perfect sense visible light only reaches us from as far as the time of point were cooling resulted in release of the trapped photons. And the photons went '' kaboom! who wants to see!''😮😮😮All jokes aside, I don't think I've seen any presentation related to this topic to even come close to the informative quality here and I think Mr Butler deserves an Award for presenting cosmology in such masterful and also down to Earth manner.

[@johnjobs3027]

What an absolute masterpiece of presentation of difficult ideas with enough math and physics to go beyond dumbed down popular science alternatives. My hats off to you dear Mr Butler. Teaching is definitely your calling. I almost forgot, your voice is also spot on. 🇨🇦👍

[@AhmedBahgat]

Best collection of videos I have ever watched in years about the universe. Thanks mate

[@mateoletsgo2232]

I listen to David to relax. He's the best.

[@kogocher]

Very clear explanations. You are my hero

[@kwgm8578]

Hi David, I'm reviewing your video books on a new, large 4k tv and am very impressed with how beautiful it all looks. I'm recommending your coursework to my technically oriented friends while we're all hunkered down to beat the bug. I can now read the on-screen equations, and notice other details. What fun to spot Ayrton Senna in his McLaren MP4 racing off to a distant galaxy! Hope you are happy and healthy in these interesting times.

[@BarefootBill]

Even with such an interesting subject, David's voice and the classical scores are good sleep medicine! Pleasant Ethereal Dreams to all!

[@DawitTadesse-ld8hr]

This video explains all of the concepts so easily and it makes so much sense. Thank you David Butler.

[@Qosize]

They're so great.... thanks

[@maxrowley6647]

How do you not have more subscribers or views. The explanations are as understandable as you can get for laymen like me and the soothing voice is nice. The “how far” series should be a televised documentary. Thank you for the education.

[@dang2410]

Why have I only just found this channel? Superbly done.

[@Nostalgeek]

Dan G so you can watch all vids at once. Oh, lucky you :)

[@attemm1]

Excellent video. I cannot thank you enough for creating this and having it freely accessible as well. The quality is top notch ! The content is superb. Needless to say I learn a lot from this. Also rewatching it for deeper understanding.. !! 👍😊

[@davidjordan5175]

Thanks, I am not educated, but I find this very interesting and entertaining.thank you very much for your sincere efforts to bring science education to everyone

[@Pugetwitch]

you're educated now.

[@chalimsupa6603]

despite the difficulty understanding physics concepts.. i have huge interest, i'm following and listening multiple times... hoping to learn alot about the cosmos... amazing work!

[@187Burks]

Best ASMR out here

[@Cavistus729]

i absolutely love this channel and watch it daily. thank you for your work, Mr. Butler!

[@seanmcdonough8815]

This guy is my new hero! The graphics are so spot on. A brilliant guy met his time with tech

[@quantumjeel]

One of the best presentation on KZbin about cosmology. Mr Butler have several high quality presentations. Worth watching all of them. I have shown most of them to my kids. Thank you for sharing it.

[@JetskiDex]

My favourite Channel on KZbin, once I get a job I’m donating to your patreon!!!

[@younanm]

Best series for the layperson on the net..especially HOW we know what we know

[@FlyInTheLotion]

Your channel has quickly become one of my favorites, not only love watching it to educate myself, but great for my anxiety when I’m trying to go to sleep, but can’t.

[@TheGnarTube]

You are a national treasure. Thanks

[@lowfreak]

I love your videos. So packed with knowledge.. I can watch them again and again!

[@mikecroly4579]

Mr. David Butler; thank you so very much for your wonderful videos! They're greatly informative and enjoyable for a school dropout such as me! You are very good at this! Please continue dear sir!

[@ronburgandy5006]

Love it. I wish my family and friends understood my love for science. The only time I really get to enjoy this subject is by myself. And when I do discuss the how, what and why in the simplest terms they shout "geek alert"....

[@djsist]

Been there, suffered that.

[@mortalclown3812]

We need geeks.

[@tk423b]

This is the best explanation period. Thank you.

[@AngoNL035SD]

Yes you are back!

[@benjamincrom7276]

Thank you so much for all your hard work Sir. We all appreciate your videos so much!

[@HugoHabicht12]

The surface temperature of our sun is 5777 Kelvin (1:08 min). I love your videos. Thanks for the work and very best regards from Germany.

[@koldfizzion3762]

You’re awesome. I love your videos. So easy to listen and watch. Very educational. Love it. Thank you.

[@tonysales3687]

thanks for this great upload - superb narration.

[@Smithy1962]

This answers quite a few questions that have been on my mind for so long. Thank you for explaining things in a way that make sense to so many. I'm looking forward to the new experiments and the information that they will be providing! Keep up the great work that you do!

[@johnshields6852]

I'm hooked on these videos, it's so amazing to see the birth of our universe and if our own solar system, the mathematics you explain is excellent for bringing it down to size so someone like me can understand the processes, thank you for a great presentation.🌎

[@roman2011]

Absolutely love this series.

[@ogarstyle]

As ALWAYS... Thank you! I learned a couple things from this video. I'm pretty well read but you my friend are definitely ahead of the times. Look forward to more.

[@MrKmanthie]

So nice to have you back! Been looking forward to the new video book. I recently moved from the San Diego area to AZ (I really hate this state! I miss CA very much & can't wait to get back!!!) - so over the past few months I've hardly been online at all which has made things go even faster. Before I left I had watched all the other video books in your series -not just once, but at least two or 3 times- and each time it was a pleasure. Thanks for all the work you put into these.

[@jerrym9805]

Wow this video connected all loose information I've had into one sense making story. Thanks for that. Great vid David!

[@andyreadman]

Gloriously optimistic about the life after watching this. Even when I don't quite get it....might have to watch it twice, thrice or even more! Somehow thought, it lifts my spirits! Thank you!

[@jaydunstan1618]

So well explained. Thank you so much David.

[@showingYOUtheworld]

Amazing documentary with highly intelligent ,,background " music. Thank you !!!

[@jugulator0]

As much as mere words can express....Thank you David.

[@kathylynne2011]

He's not expressing much.

[@KeithShuler]

You are a gifted educator.

[@Swede_4_DJT]

Yet another fantastic series. I lost count of the many times i listened to your videos. They are on repeat in my ear while sleeping (after i heard them many times awake) Thank you from Sweden!

[@johnk4437]

Rated 5 STARS ! ***** ! This is a fine video that explains several key concepts about the CMB and its relation to the current Big Bang model of cosmology. WELL DONE ! An excellent adjunct for any high school science class with an astronomy component or lower division college course in Astronomy. Easy to follow, clear concise language, excellent graphics. BTW Arno Penzias name is hard to know how to pronounce. No matter, t Thank You !

[@bergarteric5713]

Merci pour ce passionnant reportage et ces explications claires et tres bien documentées Thanks a lot for your job Mister Butler Thanks !!!

[@SIMEONOVVASIL]

Wow, it's mind blowing to think how much knowledge humanity has gathered for a fraction of time (like 10000y). And this trend looks to me as rapidly accelerating with every new research, discovery, invention, technology, etc. Like all this is interconnected, more you know, more you want to know. I like one thought : - we've learned so much about the universe with its life, and yet we know only a fraction of the big picture.

[@seabound1350]

Amazing video! Thank you so much!

[@clessiodaniel5926]

Thank you so much for this recording material. I've really loved it to the most ..

[@losttribe3001]

Another great video! Thank you!! You brought up fractals...do you have a video, or might I suggest, a video on fractals? Mendalbrot's set and chaos theory may be out of the scope of what you are doing. But you have such a great way of explaining things! Cheers!

[@siom7617]

Eloquent and coherent. Much respect for this video.

[@monster2slayer]

we missed you!

[@1dogeez]

all and every video ive watched on cosmology were bits and pieces and you sir put them all together in one video so i can see the biggest picture ive ever saw thank you

[@vijaycelle]

Wow! Great to see you are back! The explanation and visuals on baryogenesis, neutrino decoupling sequence was very helpful. I did not understand that part of the big bang before :)

[@poseidone5]

Great and clear content, perfect timing and rhythm even for may horrorific english. Thanks :)

[@josephcomfort1166]

This guy blows my mind

[@jackmack1061]

This is the best brief lecture on this subject I have seen. I find myself in a state of wonder. Thank you for tying my piecemeal understanding together so beautifully. This is Templeton Prize standard pedagogy. It seems perfectly piched for the competent amateur who is well beyond the fundamentals of the field but far from expert. Thank you again and please keep producing these videos.

[@SaposJoint]

Very nice, thank you. Subscribed.

[@terryhollands2794]

David, I love the way you explain things, you must have put a lot of work into this.

[@brennickler]

I am showing a part of this video to my class for a book talk about the same subject. Thank you for this video!

[@howfarawayisit]

Bren, Thanks for letting me know. Do you use the full video or the Classroom Aids that make up the video. And do you ever use the howfarawayisit.com website?

[@brennickler]

David Butler I enjoy using the howfarawayisit.com website very much. I use it a lot to demonstrate different subjects to my friends and family. Because of the shortage of time, I was only able to present a few minutes of this video. All the other sources (such as the video playbooks and your website), I use for my own research and introduce to my friends.

[@number6223]

Thanks, absolutely love your channel!

[@kennethhicks2113]

You are an excellent educator Sir, ty.

[@MrKmanthie]

Hello David. I've been wondering what's happened...after seeing your several other videobooks, most of them at least two or 3 times(!!), I kept waiting & waiting for the next one to come out. Well finally, last Sept., it did! And I thought that this new series all about the λCDM model. This was exciting, as it, before I watched it, seemed as if we'd be getting more and more deeper mathematical, astrophysical insight/education. This turned out to be entitled "How Old Is It?". Has there been some problem that has prevented you from doing more on this one? If so, IKR completely. Anyway, of course, right now it's already mid-Feb, 2018, so, I'm not holding my breath for any more soon, anyhow. Though I'd really be delighted to see a new one pop up. Thanks again, for all the hard work you've put into this series of educational video books. One last thing: the main reason I love your presentations so much is that you have the perfect bridge between those dumbed-down PBS-style science documentaries, where they have the same 10 or so talking heads pontificating and explaining certain things for us, the "uninformed"; between those and the more super-academic university lectures which usually presume an already steady knowledge of the subject at hand, and so doesn't take the time to, at least, "simplify", that is, go over the basics of the particular subject. These are just right for one who isn't an astrophysics major at Harvard or Cornell, or Cambridge, etc. (or Oxford, where you matriculated), but also for one who has enough knowledge to not need a dumbed down high school version of "science class". Anyway, thanks much for your work. Hope all is well with you & that, sooner or later, we'll see the rest of the "How Old Is It?" video book. Toodles...km.

[@howfarawayisit]

I am in research mode on how old is the Solar System and Earth: getting into exoplanets and geology. It will take the year I think. Then 'life' - evolution in 2019. In the meantime, I have the 2017 review coming out very soon. I'll also be updating nearby and distant stars. Thanks for staying tuned into the channel. It has been very satisfying to see the number of subscribers like yourself grow.

[@jedadiahtucker2132]

another great video. i personally think you should be counted among the best of modern day science communicators. up there with Neil Tyson, Brian green and Brian Cox

[@howfarawayisit]

Thank you.

[@T1000-s4j]

@Jedadiah Tucker - I agree. Amazing.

[@christinestill5002]

Jedadiah Tucker I agree with you and I think I was one of his first fans, way back when there were only a few dozen viewers of "How Far Away Is It?" How could all his fans nominate him or bring his excellent videos to attention to say, Tyson at the Hayden Planetarium in N.Y. ? I get an additional kick out of identifying the music he uses . I've recommended his videos to many, many ppl.

[@christinestill5002]

You are not much of a self-promoter Mr. Butler. Luckily, I go back often and look at past videos (still adore your original) so I stumbled on this set. You're got a 70 yr. old grandma doing equations with you for fun! Thanks

[@howfarawayisit]

Thanks for staying with me for these past few years.

[@ChampuStrike]

Thanks for your content Mr David

[@theoldhip]

You are a gift to all of us - Thank you for your efforts - Seriously - Thank you.

[@stelpap6768]

david !!, an excellent video and lesson again. you are born to be a scientist and a teacher of the highest level.

[@procyan1]

Gosh, I have seen that CMB map a thousand times and now for the first time I understand. Now I know the meaning of the word awesome.. Sincere thanks

[@ErwinvanHolten]

Thank you. For these amazing videos. I probably will have to watch them more than once. And I will. (BTW, in this particular vid music is not disturbing. And I love use of YT chapters. Well done 👍)

[@writer684]

Im using this to fall asleep and to learn .....

[@mountainhobo]

Brilliant clarity of explanations.

[@yakaronielyak8299]

Thank you sir. Well spoken and delivered.

[@punnasamamao1307]

Mr David Butler - Master of the Cosmos .

[@physicsphilosophy2492]

Sir you are the One of Top Genius Earth has ever produced 👏👏👏👏👏👏👏👏👏

[@Angelo_2424]

We need more videos like this.

[@petergreen5337]

Thank you publisher ,the clarity is very helpful

[@esterlight3000]

Amazingly beautiful, beyond comprehension and intriguingly interesting. Thank You so very much for sharing your scientific excellence.

[@mylesbishop1240]

I still can't believe this guy has below 50k subscribers.

[@marcbiff2192]

Like the universe there was a time when it was very small now look at it.

[@paulwilkinson1539]

Absolutely Superb!!! Thank you David

[@houm7571]

this is real education, awesome job

[@tetkinsin]

Thank God you're back Sir! I'm so gonna enjoy in this one. Thank you, regards from Sarajevo, Bosnia and Herzegovina.

[@truthseeker906]

This is rather esoteric for me. I feel like I am in a class for a lecture on particle Physics.

[@chriscauley4182]

Keep it up. If you watch enough videos on a topic that feels that way it stops feeling that way. You may not get a rigorous mathematical understanding, but you'll get build a working vocabulary for the topic. Then when scientists make a new discovery you can you'll appreciate it more.

[@Thex-W.I.T.C.H.-xMaster]

Interesting and informative 👍.

[@thomaswoodrow1128]

Love ur work - another serving of brain food! Thank-you David, T Woodrow Sydney Australia

[@barrerasciencelabuniverse6606]

Very very good, now i learn something new!

[@sydbarett9306]

Thank you for your awesome work !

[@jamesbarratt593]

Did you know that at the end of space there’s a little doorway which leads to a room where an old guys sitting

[@mopacwestgate]

Yes I have heard rumor of this,they all have shoe boxes on their laps. Some boxes have dead cats and some have lively puppies . ..far out

[@honestmicky]

Excellent video, thank you much appreciated : )

[@fnersch3367]

Nice & compact explanation of the esoteric processes of universe formation.

[@JMDinOKC]

This episode should be called, "How Cold Is It."

[@RaulSingh01]

I think someone from religious background used this video to disaprove astrophysics or prove a creator and now the comment section is filled with people having "intelligent" questions. These are such amazing videos, full of knowledge and yet.. amazing how it has become acceptable to attribute everything to a sky daddy, but very hard to accept that we may not understand everything now, we are trying our best to understand from what we have, and may never understand. "I don't know" should be an acceptable answer, but the fear of unknown is still in play.

[@Zahnom]

Same here. Also I don't understand why it's of such importance for some that, e.g. the big bang did no happen... I mean, I personally don't really care, I just accept that our current knowledge indicates that a big bang did happen.

[@RaulSingh01]

@@Zahnom Exactly, if tomorrow, we have better theory for the origin of Universe than big bang, I'd be interested in that as well. Its not like I've made a religion out of big bang and suddenly if it's disapproved, my existence is false.

[@Machistmo]

Used by a religious person to disprove astrophysics? lol they can use deer scat to do that, they don’t need educational materials to be dumb asses, they can do it with two sticks and a rock. Their stupidity and arrogance know no bounds.

[@lolobotius]

Good lecture!