Atoms and Light: The Interaction and Nature of Light and Matter

[@JasonKendallAstronomer]

Hello! There's a new version of this video! Take a look here: kzbin.info/aero/PLyu4Fovbph6e0oPk9ch3q2II9a8BT8gfL The remaster fixes the audio and a few embarrassing mis-speaks.

[@Rhythmpusher]

You are awesome!!

[@InsouciantSoul]

Thanks!! Love your videos, I find the subject fascinating. Also, I've only watched the first 15 seconds, but you say we don't emit light out of our eyes like a super hero... But don't we emit IR photons? 😋

[@leonlee8524]

I'm so glad this man has taken the time to not gain just an understanding, but an intuition on the subject-hence why he's able to transmit his understanding so well.

[@aprisonerscinemastephenmur6932]

I've been dabbling in physics for about 8 years and this is one of the best videos I've ever come across to really hit home electromagnetism in a deep and intuitive way. And this is clearly because you have a deep intuitive understand of the nature of reality and a wonderful passion, ability to convey it. unfortunately through science text books and some lectures what is actually happening in reality it get lost to abstraction! You have a gift for communication!

[@JasonKendallAstronomer]

Thanks for the compliment. I’m really pleased with how these early videos turned out. They are key to understanding all of the processes in astrophysics, and are woefully under-understood.

[@lulalula176]

anyone else wake up here

[@saharshmedichalam4226]

35min

[@JasonKendallAstronomer]

yeah, there are som legacy things in this video. Please see the updated versions here: kzbin.info/aero/PLyu4Fovbph6e0oPk9ch3q2II9a8BT8gfL

[@Kasmyr]

Just did

[@louiszetlin6315]

Yeah!

[@Thengloz]

Thengloz

[@grproteus]

This is probably the best introduction to quantum mechanics I've seen, and I've seen a lot. It explains the what and the why in a very elegant way. More people need to see this!

[@RCTweeker]

Cant believe how seamlessly you can give this verbal dissertation , Kotos bro! Your others are just as good

[@JasonKendallAstronomer]

Thanks. It's a lot of practice, and giving public talks, as well

[@jasjitsingh5457]

These are the best videos for people who are truly interested in this subject

[@JasonKendallAstronomer]

Thanks. I’ve worked hard to curate these.

[@TheMemesofDestruction]

An Educator confidently rocking a bow tie like that gives me confidence they are correct. ^.^

[@TheMemesofDestruction]

31:30 - Groovy! ^.^

[@towedarray7217]

I love this guy. He is one of the better science communicators on KZbin. I’ve listened to some of his deeper-dive lectures that go 4, 5, even 6 hours in length and he makes it very fascinating. He’s just good at doing this. Cool guy, good way about him.

[@christopherlocke9616]

Could he sum this up quicker?

[@mitchellking4988]

Thanks for making this available for everyone. Your ability to place the theory in a physical context we can relate to is awesome.

[@JasonKendallAstronomer]

My pleasure!

[@jpg9750]

WOW!!! im 17 minutes in and you have covered so much so competently.

[@jpg9750]

Am i wrong to understand that Einstein was abstractly applying the dopler effect to light and then extrapolating? Without the speed of sound being short enough for us to perceive the dopler effect, would we have ever come to understand relativity?

[@JasonKendallAstronomer]

His ideas from special relativity came from his train travels....

[@johnperry3105]

Makes the presentation really clear. I like how light he makes it.

[@LiftPizzas]

I enjoy listening to these, thanks for making a great playlist. FYI (not super important to the topic, but) the solenoid doesn't go back and forth to turn the engine. The solenoid closes the circuit between battery and starter motor, so that the little switch in your steering column doesn't need to have hundreds of amps running through it. :)

[@Dyslexic-Artist-Theory-on-Time]

Love the videos!!! Light has geometry, we have Huygens’ Principle of 1670, that says: “Every point on a wave front has the potential for a new spherical wave”. I have read that the electron is spherical and charge is equally spaced on the surface of a sphere. Even fire takes on a spherical shape in zero gravity!

[@v3student]

Thank u...My trade off choice at uni was between social science or the hard sciences...This field is becoming very well known. Very well explained.

[@anthony639]

utterly amazing!, the way you explain. i feel like im learning for the 1st time again, you keep me totally intrigued! subscribed! cant wait to watch your other uploads.

[@TowMee___]

I fell asleep while watching fortnite and woke up to this. Only think i can say is amazing work.

[@Bob-yl9pm]

Ok, I may not be a Collage professor (but my dad was)…Ok, I was into astronomy when I was ~12-13-14 years old,. My God father, uncle Ronnie bought me a telescope! And my older brother and parents bought me an even bigger telescope and books on astronomy! I think they were more concerned that I would notice woman!

[@BertMontiagodo]

Sir I have to ask why the lights of lightning moves not as strait as we think but most of light moves strait.?

[@HBees79]

Hi, love your long videos - thank you for all the time and effort 😊

[@trevorvanbremen4718]

I find these long ones a bit too much for my puny brain!!! Thankfully though, JK has broken this one into 'chapters' that seems to be a good fit for my finite (limited) intellect... Thanx JK!!!

[@keithdowsett1352]

Factual correction: It’s not just neutrons which cause activation. High energy protons (e.g. 19MeV) will activate low Z nuclei as well as spalling neutrons which activate surrounding materials.

[@alexts1234]

Nice lecture. Thanks!

[@jefflyon2020]

Thank you for the clear and sober lectures about fantastic subjects Mr.Kimball, i always learn from them and i greatly appreciate it being available like this to the curious mind.

[@EarlLedden]

When I boil water, are the moving protons creating electromagnetic field waves thus generating photons, i.e.light? What am I missing here?

[@JasonKendallAstronomer]

not missing a thing.

[@EarlLedden]

@@JasonKendallAstronomer Where's the light? Can the light from boiling water be detected?

[@doubled1043]

Awesome. 100% information.

[@BertMontiagodo]

Hello. Sir.... I have question on. Light that I think I don't know where the light moves if two opposite light collides? Does it makes polarize the wave of its energy to produce smaller wavdlights?

[@Elegant-Capybara]

Woke up here, my body has turned blue, I think I may turn into Dr. Manhattan... Oh wait, it's just blue balls from all the Plum pudding talk. 😂😂😂

[@tnekkc]

great lecture! solenoids run on direct current I have covid

[@JasonKendallAstronomer]

Yup, I’m aware of the mistake. This entire video was republished in a better form. Sorry to hear you have covid.

[@Electrician2009]

How atoms reflect light ?

[@JasonKendallAstronomer]

They actually absorb and re-emit the light. A smooth surface makes a coherent reflection because all the atoms and molecules are in a regular lattice which assures that this process is “the same” among all. To learn more look up Feynman’s lectures.

[@Electrician2009]

@@JasonKendallAstronomer thank you !

[@johnjeffreys6440]

The horse-head-nebula actually looks more like a baboon climbing a tree. 0:26

[@Lucifersphoton]

So when im watching something burn. Its energy is interacting with my electrons. Trapping that 'something' in me? Then i produce out energy back at that 'something'?

[@desdenova1]

Gotta appreciate a scientist who can pull off a bow tie.

[@ts8538]

Thank you! --Very helpful explanations.

[@JasonKendallAstronomer]

Are you taking a class?

[@ts8538]

@@JasonKendallAstronomer No, I just enjoy lectures having to do with physics and astronomy.

[@elijaguy]

49:45 now imagine you play the Mozart k 488, and so many C's are anyway missing because it is in A major, so even the little that you can hear is missing in this key. Sounds like the average state of ignorance in which many of us spend our lives...

[@k7iq]

I REALLY like your style ! :)

[@darrelniemi9810]

Thank you for these videos I’m super interested in this stuff stuff grade 8 lol I’m 47 and I still wonder on all these things and I really enjoy your teaching

[@dennyclark4954]

Thank you for your lecture,, very well done!

[@brujahRg]

Very good lecture. Thank you sir

[@JasonKendallAstronomer]

So nice of you

[@kakhaval]

Good presentation but too fast for me, no gaps to take in.

[@book3100]

Wave patterns can be analogized this way too: Destructive interference as dissonance, constructive as harmony. Just a little different take.

[@DrDeuteron]

Bose active cancelation headphones would disagree on the dissonance. Not only do you need perfect pitch, you also need perfect phase to make them work.

[@velaknap]

This is great. I have learnt so much!!

[@elijaguy]

45:25 enlightenment poetry!

[@micki500]

Your lectures are really good!

[@BertMontiagodo]

Why does energy wave field of light does not affected by magnetic field?

[@sunwukong6917]

Amazing lecture

[@JasonKendallAstronomer]

Thanks! I'm always working on new videos.

[@daremagare86]

You have a cricket in that room man, he's chirping all the time 😂

[@ioanbota9397]

Realy I like this video so so much its interestyng

[@pickelsvonbrine]

Best place to get nerdy

[@nickisnyder3450]

I have looked for years for an adequate description of why light moves. Every discussion about light always omits this. I have a theory but hatd to confirm as every discussion isxalways abour what it is, particke/wave. What it does...yesvit moves...but never why it moves & never stops. Lack of atmosphere in space is not explaination as it travels at same rate in atmosphere

[@ryanwarner5006]

I never knew the MLB catcher was so interested in science.

[@JasonKendallAstronomer]

Funny you should say that.... A long time ago, I got an email from one of his fans. I went along with it, and finally said "Thanks for all the support for me and the team. But this email is the one I use between my manager and I, so I'd appreciate it if you wouldn't give it out." She said "of course". Never had a problem. I've also been stopped on the street for looking like Nathan Lane (when I was overweight) and Michael J. Fox (when I wore denim and vests.)

[@aaronsmith593]

How many cups of coffee do i need to understand this. 😊

[@JasonKendallAstronomer]

Let’s start with four.

[@elijaguy]

Great!

[@spencerderosier6649]

14:13 auto play woke me up. 😢

[@hikarustarr]

I don't turn on my computer. It's always on. *1 sometimes it goes to sleep. *2 sorry, just being a smartass. nice video, is what I meant to say.

[@adamjacobrogers9155]

Lazar predicted element 115.

[@kevinsharp-kn7rm]

Oh dear😢I've nodded off again 😅

[@vernonvouga5869]

Before I listen to this entire lecture which I will, am I not wrong in thinking that light could be the cause of the expansion of the universe since light touches all points of the universe, just like gravity does? If a photon has weight and can push things it makes sense to me, especially if something gets pushed so far out of gravity that it starts flying away

[@JasonKendallAstronomer]

I wish you well on your studies of all 14 lecture modules. Come back to this comment after you’re done, and answer your own questions. The journey will be fun.

[@bernarddoherty4014]

Ease up on the coffee!, Lol

[@davidvogel1756]

It looks like "de Broglie," but it's pronounced "de broy."

[@JasonKendallAstronomer]

Thanks. I heard it wrong in my college days and it stuck. “Yes it’s spelled Raymond Luxury Yacht, but it’s pronounced Throat-Warbler Mangrove”

[@k7iq]

@@JasonKendallAstronomer IS that a reference to Monty Python maybe ? 😁😁🤣🤣🤡🤡😁😁😁😁

[@DrDeuteron]

Let’s hear it for de Broglie. 🎵

[@boriskuzmanovic779]

umri

[@gmar6067]

Can you talk any faster

[@JasonKendallAstronomer]

I’ll try to work on that

[@EarlLedden]

@@JasonKendallAstronomer Please don't; we need time to think about what you say. Seriously. The complainant can boost the speed by adjusting the settings.

[@Ri-ver]

Audacity has free plugins that will help you get rid of that persistent annoying sound

[@JasonKendallAstronomer]

I've remastered it, and you can watch it here: kzbin.info/aero/PLyu4Fovbph6e0oPk9ch3q2II9a8BT8gfL Also, I want to completely re-record it anyway, and that's in the works.

[@Ri-ver]

@@JasonKendallAstronomer Wonderful. Thank you for the time and effort you are putting into this content. It's very well written and valuable content. You do a great job writing in a way that appeals to the people who know the science well as well as the people who have never learned about it before. Keep up the incredible work (but only if you want to)