And when the world needed him most, he returned.

@maskon1724

2 жыл бұрын

Marge: there’s a man here who can help you. Homer: Batman? Marge: No, he’s a scientist. Homer: Batman’s a scientist.

@jimc.goodfellas226

2 жыл бұрын

You said it

@kjhman

2 жыл бұрын

Wtf are you taking about? He’s posted literally 20 videos in the last 6 days.

@marcelinomagalong5881

2 жыл бұрын

As the intelligence of human increases , discovered many things from atom to intergalactic galaxies ,it proves the works of hyper intelligent being .

@executivesteps

2 жыл бұрын

@@marcelinomagalong5881 No it doesn’t!

This is the best explanation I found on KZread, great video series

David Butler is superb teacher!

I don’t know if I should be listening while driving given this is the voice that normally gets me to sleep.

@SamSpadeLives

2 ай бұрын

Me too. I use these videos to help me to get some sleep 😂

Amazing. David Butler and The Exoplanets Channel are my favorite channels!!

Breaking out a bottle of plum wine here in Japan before settling to bed, and upvoting this by reflex, even before the first minute has passed. Info-tainment doesn't come any better than Prof. Butler's videos ... and is one of the brightest jewels of KZread ... and an elegant reminder that intellectual humility and knowledge are two sides of the same elementary particle ... uh ... 'coin'. 😂

@chang.stanley

2 жыл бұрын

Plum wine is delicious c:

Thank you Dr. David Butler. It's a shame I came to find about you, only when am an old man already. You're everything we need to become someone' knowledgeable. It's really marvelous to be able hear you. Marvelous.

In school I cared about everything else other than learning, but I can listen and learn from this whenever I have time. It's amazing ❤️

You are taking something impossible to understand to something a five year old would understand❤ Thanks alot

David’s videos makes leaning fun. Please never stop making them.

Thank you David for your kindness to share knowledge freely. Your presentation is unique in its calmness and organization. I am happy that you returned to your passion after retirement and we benefit from it. God bless you Sir!

None of this ever interested me when I was younger. But now I find it extremely fascinating and can’t get enough.

I learn more from his videos than from the hundreds of others I've seen from everyone else. This dude is great explaining things.

I love how you approach these subjects - following how they were discovered and making these things seem relatively approachable. It was just some folks playing with cloud chambers...

I need this but with the background music being Bluetech - Elementary Particles repeated again and again in low volume. :D (Great video btw )

I love that you are still working on this. My kids love listening to you, like a science Bob Ross. Great info, amazingly calm and reassuring presentation.

@snugglenuts

2 жыл бұрын

@Sean Dowling: "A science Bob Ross." I

@simonmcgrath4112

2 жыл бұрын

That's a great comment and i love the fact ur kiddies enjoy this! Well i hope they're not teenagers as they won't like the kiddies shout!!

@speedingAtI94

2 жыл бұрын

Bob Ross gave you the impression that anyone can paint but Dr Butler shows you the wonder of the universe. He gives such a wonderful presentation rich with graphics, theories, and history that lead me to dreams every time. While I am a trained scientist, I still can't understand half of the topics he covered but I do appreciate that he has made so many video books that I can keep going back and try to understand them before drifting to sleep again.

@KGB.83

2 жыл бұрын

"I am a trained scientist"... 😆 🤣

@cincin0722

2 жыл бұрын

Nice 👍

Brilliant video! I am a total novice when it comes to particle physics. I have been watching videos on particle physics for about 1.5 years now and this video has shored up and answered so many questions I’ve had over that period… I am going straight to the Higgs Boson video right now…. Thank you for this!

i could swear i had allready gave a like to this video, but i be gladly liking this twice. real clear and well explained. top notch mate thanks many times, the whole channel is a real gem. love and greetings bibia

This single video made me like 5% smarter. this is crazy I'm going for all you got now David, absolutely extraordinary conteent.

You are quintessential in your presentation like the ether ….

@ramkitty

2 жыл бұрын

Correct wouldn't have been much of a lecture without him much like the ether it's a non starter that said I am a bit of a plank matrix guy though comparatively similar philosophically

Dear David Butler, Your programs on Physics are wonderfully understandable. I am immersed in your "How small" Programs, and as I stare out the window writing this, my mind is boggled, but at an entirely new Level. Thank you Sir, for your clarity, hard work, and breathtaking scope.

I'm amazed that all these particles somehow work together to give us what looks like a stable world.

Thank you very much for your calm and very detailed explanations for beginners! This is the best video regarding elementary particles on youtube.

Your videos are my favorite videos on KZread. I watch them every night. Thank you for making these incredibly interesting and informative presentations.

This is the best means of teaching this subject matter that I've ever seen. WELL DONE.

I can understand elementary particals physics better than i understand why Mr Butler only has 171k subs?!

Clear and the best demonstration of particle physics!

David, I truly appreciate your “video books”. It’s quite enjoyable to easily connect all the dots, so to speak, of how all of these particles/fields/forces are created and what their functions are. Your narrative pacing, graphs and illustrations/animations are immensely helpful in visualizing and understanding the nearly unbelievable complexity and beauty of the subatomic and quantum realms. Thank you, David.

I'm so excited to see another of your videos! Thanks you so much sir!!

unbelievable lecture on unbelievable small particle. cant absorpt the entire material or follow quickly enough.. but captivated and awed all the way to the end. a self proclaimed particle enthusiast , now realize in bottomless pit of curiosity. thanks for the effort and keep up the good work. from Hker worldwide.

It is an another excellent video Mr. Butler. Thank you very much.

What an absolute awe and joy to watch your lectures. Thank you so much .

His voice are so calm...

Mr. Butler these are some kickass documentaries 👍👍👍

Brilliantly done.

To expand - cherenkov radiation energy is like a bow wake on a boat and as an example bow wave itself can travel faster than the boat hull speed. The difference is that hull speed of light is C 3×10^8 but in water it is 3C/4. The wake continues outward from the particle path at an angle variable with frequency.

Absolutely fantastic - great additions to the original one, it's much clearer now.

This content is so original and interesting , it deserves more attention and appreciation , i hope you are doing well Mr Butler

What is great in this lectures David shows real data, real pictures not some renders.

Yo explain things soooo well! Thank you, sir.

I have ADD and still was able to focus on your talk. Thank you.

This is superb and I've watched this so many times!! Thank you for ur hard work, we love u Prof!!!

What an amazing video, loved it, learned so much.

Thanks David Butler for your return. Excellent your video. Love it Greetings from Brazil.

Thank you so much! Continuing to update and connect us in a most pleasant and understandable format.

That background music in the beginning was dark. I had some Darth Vader flashbacks.

The explanation segment of the Slack experiment was the first and ONLY time in my entire life quarks made sense.

Outstanding lecture! Thank you. Great music choices, too!

that was great i loved it and i almost learned something. i am going to have to watch this three more times

David, do u have the slightest inkling that i and all the "dudes and dudettes" who watch ur brilliant "lessons of amazing, awesome, astronomical ablazement!!!" think that u are the coolest- (even in ur shorts!!)-Prof in the KZread world of Profs!?! Ur shows are so well put together and u make every concerted effort- (i think)-to make sure ur lessons are easily understood even by Joe Dunce from The Imbeciles Island Chain! The fact that you've made so many of them is testament to ur knowledge of the subject and u endeavour to make us, who are willing to enjoy the ride, just that little bit more learned in the topic of ur life, Astronomy! I hope i havnt come across as a idiot from England, Liverpool to be exact!!

Greetings from Sweden 🇸🇪 Can't wait for the next upload

Nice documentary. Now I understand how kaons and pions were discovered

Thank you for taking the time and energy to put all of this together. I love your presentations!

Dear Sir, thank you very much for sharing this. I have been looking for evidence of these particles, to really learn about them. There are so many science youtubers who talk about science without ever talking about experiments, we get lost. I am very happy to see the photos of events

~ 18:29 Cherenkov radiation. [wiki] "Cherenkov radiation is electromagnetic radiation emitted when a charged particle passes through a dielectric medium at a speed greater than the phase velocity of light in that medium."[wiki]. Arg! Another term to learn!! "Phase velocity"!!! I assume that since nothing moves faster than the speed of light, this term "phase velocity" must have a technical meaning that 'puts a finer point' on the concepts brought up here. (Thanx to wikis for being more reliable these days, such that you can pare down some things and build up others, as your particular needs require, so that you can get ... well, smarter, I guess, in the areas you choose to follow up with further!) This is a great video for bringing up photos of cloud chamber effects and teaching some of the concepts behind experimental results. I LOVE videos that flesh out with appropriate examples, and 'dissect' images and explanations both ways, for better all around understanding...

excellent video, thanks for uploading!

I have seen this video almost 10 times now and it still amazes me.

@rockets4kids

2 жыл бұрын

I've fallen asleep to this video almost ten times now

Utterly brilliant. Thank you.

I so appreciate you!

This is the scientific presentation at its best.Prof.Dr Nasir Fazal Cambridge USA 🇺🇸

@howfarawayisit

2 жыл бұрын

Thank you.

Your videos are fantastic. Thank you Mr Butler

I think David is getting younger…

Oh wow. I just finished and I need more. That was really good.

You can moon on all you want about the Fine Structure Constant, but what I get a kick out of is all those comparisons saying "If the nucleus were the size of a pingpong ball, the electron cloud would be 2.5 kilometers away." That being the case, the fact that you can do experiments in a cloud chamber, and the lines and spirals formed are in a perfect size scale for human perception, is one hell of an 'anthropocentric' quirk. We don't need a cloud chamber the size of an Olympic-size swimming pool, and we don't need an electron microscope to examine cloud chamber trails either. The lines, forms and spirals are right in the middle of a size scale that allowed people to begin refining theories without having to wait to build that cloud chamber or that electron microscope. THAT is a pretty cool thing you'll never find in a theory or a law of nature. Cloud chambers can work at a size scale that allows humans as we know them to easily handle imaging and interpretation. I believe that is WAY cooler than the Fine Structure Constant being some mystical dimensionless number. They're just cool because they ARE. I don't need to know WHY it's 1/137.

Thank you! I’ve been seeing bubble track images for years but never read a method for interpreting them.

Absolutely amazing.

What a mess.... I mean the video is brilliant. But the range of particals is so broad and complicated. Its incredible scientists have been able to discover all these. It really is a messy jungle.

amazing work

Great video. So interesting and so well presented. I love all of your videos. Thank you.

Seriously David you do GREAT work

Thank you so much Herr Professor Sir!!! Thank you 💥 Thank you 💥💥 Thank you💥💥💥

i love your presentations and the way you explain things.

Beautiful. God bless.

thank you. for everything

I really appreciate it. well said.

~ 23:10 BIG SCIENCE to learn about tiny objects!!! Discovery is so freakin' cool... :-) :-)

Thanks Dave. Fun fun fun. Almost as much fun as debugging the Ynet with you back on Jefferson in '86 :)

@howfarawayisit

2 жыл бұрын

Stevelk, I remember it well. Those were good times. But I can't tell who you are from the picture and name 'Stevelk'. Please, can you refresh my memory. Thanks.

@stevelk1329

2 жыл бұрын

@@howfarawayisit Hi. I was the tech, mostly fixing boards. We went through the Interface "HSRAM" a few times together - you showed me where things were and how to find things when debugging. I was the guy ended up working for Dave H in engineering. "Kleekus".

@howfarawayisit

2 жыл бұрын

@@stevelk1329 Hi Kleekus. This brought back good memories. Thanks.

Wonderful! Thank you!

Hello, welcome back!

Sir, thank you so much for the section on cloud chambers, you have filled a massive gap in my understanding.

THANK YOU SO MUCH!!! Beautifully descriptive and eloquently phrased! Thank you!!

Nice work.

Thanks David 😊

Excellent Vid for review. Great work.

My eye were awakened l when in my first year chemistry class, the second class.. I was given Geiger Counter... And I turned it on oh what a revelation! It clicked in detection of energy being given of, unseen, unknown by human kind, until the last one hundred years, I realized the Universe was alive and ever changing.

Dave you are a legend

Bravo!

~ 41:30 How NOT to learn particle physics. When you're less than skilled at asking others for solid guidance in something like 'the titles of and the order in which to watch some lectures', you tend to catch things a bit piecemeal until such time as you DO learn how to ask, or, you develop enough of a knowledge base to be able to puzzle such things out on your own, only better, as that base grows. So imagine my surprise when I discovered, only now, that "Gen I" particles do not decay. Fancy that... Cool. Time to start taking notes. Can't help it. Numerous comments on same video because I'm enjoying it quite a bit!!!

A new video. Yes!!!!

Thanks!

Great vid

Physics at this level is spooky.

Talking about linear accelerators got me thinking about the LHC and smashing protons into one another. Which got me to wondering. Instead of a Big Bang that resulted from the existence of an ultra-dense bundle of primordial something spontaneously exploding, could it have come about by the collision of two such bundles similar to the collisions in particle accelerators? There may be many such bundles in the space outside of our universe and every now and then two collide creating another universe. In this way the bundles may be stable and not prone to just explode. It takes a collision to make it all happen. These collisions would probably be very rare considering how small they would be so there may not be many such universes. It would be a "Big Collision" as opposed to a Big Bang as such. Of course, this also brings up other questions such as: what would happen if they didn't strike each other directly but more of a glancing blow? Could the collision that created us it start a chain reaction with some of the resultant surge of released energy setting off other bundles? Or maybe causing other bundles to collide with one another. Can the bundles travel faster than light since there would be no "universe" and it's fields to impede them. Such velocities could mean the energy inherent in each bundle would be multiplied many fold, resulting in the possibility of bundles with less energy/primordial matter in each than would be normally needed to create our universe. Especially if they hit each other head on. If they go faster than light, could they actually also be traveling toward the past? Meaning our collision actually occurred a lot sooner than we think, but retrograde time travel makes it seem as though it happened in the very remote past. I'm not sure how one could tell which is which though, without leaving our universe and getting into inter-universe space.

David, please make a video discussing the cruton.

Segment works well

This is very concise and informative, thank you very much!

Positrons and Electrons equalize each other. 2 high energy gamma rays have created matter/Hard Light.

I think quarks should be labeled "P" and "N" instead of Up & Down, where 2P+1N=Proton, and 2N+1P=Neutron. Easier to remember.

@a.j.orichard6137

2 жыл бұрын

🧠 💪

@spwicks1980

2 жыл бұрын

P = phosphorous and N = Nitrogen. Particle physics would be bloody confusing if we did that ;)

I can hear the ellipses after every one of his thoughts

I’ve watched several physics videos on KZread. I’ve learned, and actually understood, more from your video than any other hands down. I think the history you include helps immensely. Understanding the details of the experiments is so valuable. I need to go watch the other videos in your channel. Thank you.