Dear David Butler, I need to thank you and the people who assisted you with this magnificent series of Physics lectures. I am a scientist, but I have learned so much (probably again) from these programs. The simple way the work builds on itself, from far, to large to small, all from your backyard starting point is wonderful. I am so in love with learning on TH-cam and your Physics programs. Thank you, Sir.
Same bruh. This is what keeps me going. The universe and it's immensity is the only thing that should matter. I hope everyone here can relate to my pain
These lectures are wonderful! I love the classical music. I've a good background in math, though for family problem's I was never able to go to university. With my small understanding of algebra and your explanation, these difficult to understand processes are brought to light. You remind me of Richard Feynman, I knew his wife, we where born in the same village. I met him several times, no matter how complex the subject, he could explain it. Thank you!
You are as wonderful as the universe. How can you explain so fluently without looking at the notes. The force made the whole universe also made everything on earth. And your intelligence is a mere reflection of the greater intelligence above.
Dear David Butler, You have clearly explained, in this video, the relationship between certain ideas that I have been trying to understand the significance of, for ages. Thank-you.
I love your videos David. I watch them to help me revise for my upcoming physics assessments. I want to study physics and astronomy, I just can't get enough of your videos. Well done.
Well, you should not lose a second and start recording the whole thing. Then you start a YT channel where you claim you are a time traveller and prove it with the recording. Next thing that will happen is subscribers will start to send you money.
Just a BRILLIANT BEAUTIFUL and lucid presentation Sir! THANK YOU. Although I've been interested in these subjects for DECADES, read countless books and seen numerous good videos, this is at the TOP of the list for concise clarity. Your work is GREATLY appreciated!
I always reccomend this channel to everyone I know. These are the best videos. So relaxing. I always listen at night in bed and it feels like I'm travelling the universe. The long videos are so good.
Mind blowing, all that i already know from many sources, but that moderate but steady flow of history is so consistent. You really love what you talking about.
Dat background music doe lol perfect! Im glad u included wat the music was in the description =) yes! was just wondering and BAM! there it lies.. u da man!
Thank you from the bottom of my heart sir for the amazing content. I can’t thank you enough, i enjoy your channel and enjoy listening to you, thank you very much.
Lovely video! Two things I have always wondered, perhaps someone can clarify: In the single photon double slit experiment how do we A) Know that a single photon is emitted at a time and B) Know precisely where it hits the detector. Whenever experiments are discussed I am always curious what ingenious methods were used to achieve the results! It makes me appreciate the experiments vastly more when I can somewhat grasp the mechanics, without said grasp it can sometimes all seem a bit fantastic and esoteric to me. I'm certain there is a process by which we do both, but I don't know it and I'd love to hear from you all! It's probably a basic question, but I really don't know how we measure a photon striking a grid on a detector.
Got to admit i dont like the hypotheis "the light particle interferes with itself". I think its more a case of it just being thats how space is shaped, the field of space makes a particle travel in a defraction pattern. However a device which meassures where the particle is going is flattening space, and that particle no longer travels through bumpy space and just goes straight. Hence no interference pattern when measuring
I watch these at night because his voice soothes me. But it’s 2am and it didn’t work this time. He should do a video on interest rates. That would work.
PKE Nefedov Experiment was conducted in a non isotropic and homogeneous electric and magnetic field but was changed to a more isotropic and homogeneous system. Are electric and magnetic fields isotropic and homogeneous in observed space?
Great video, WELL DONE! Can anyone help me wrap my head around the complicated equations used in physics and mathematics? Are the greek symbols used in equations holding the same value in all equations? For example, these symbols, +=plus, x=multiply, -=minus, etc. etc. These symbols (for the most part) hold the same meaning in basic math. My question is. Do the greek symbols hold the same value in all equations, or do they hold different values and meanings in each equation? For example, can you read each equation if you learn the meaning of the greek symbols, ( pie= 3.14), ohms, etc., etc? Or the symbols can hold different meanings and values for each equation? Making it necessary to memorize all equations individually instead of memorizing the meaning of each symbol? For example; when I see the + symbol between numbers, I automatically know to add those numbers together, (1+1=2). Or is it that (each symbol has the same meaning in every equation except when it appears as or presented as) For example and similar to the English language. Cacti is plural, or the letter Y is a vowel sometimes, depending on how it is used. I'm thinking that it is the same as the letters in the alphabet, they have different values and different meanings on a case by case basis, depending on how they are presented or used, and also vary on a case by case basis, and you need to learn each equation to know the exact meaning each symbol/letter each equation. So, there is no master key or legend to reference like a dictionary for the Greek symbols and letters? If you've read this far thanks a lot for your patience, any and all feedback is greatly appreciated!
Jimmy, Some letters are reserved for frequently used constants like π and c for the speed of light and e for natural log. Otherwise the meaning of a symbol is named in the text around the equation. Hope this helps. Thanks for watching.
The meter stick in your hand is shorter than the one on the table. At (0:36) The yard stick is on the outside and the meter stick is closer to you and it's shorter.
Yes, thank you David, all the way from Europe, been watching and learning Science from you for free for years, you are the teacher that we always wanted!
Dear David Butler,
I need to thank you and the people who assisted you with this magnificent series of Physics lectures. I am a scientist, but I have learned so much (probably again) from these programs. The simple way the work builds on itself, from far, to large to small, all from your backyard starting point is wonderful. I am so in love with learning on TH-cam and your Physics programs.
Thank you, Sir.
I was so stoked that you posted a new video today, I’ve been watching the entire “how far away is it” playlist every night for months now!
Same here
Me too
He's marvelous
Same bruh. This is what keeps me going. The universe and it's immensity is the only thing that should matter. I hope everyone here can relate to my pain
@@Zain0_0 I feel the same way, people are so wrapped up in their nonsense and most peeps dont appreciate space-time and it’s many wonders.
These lectures are wonderful! I love the classical music.
I've a good background in math, though for family problem's I was never able to go to university.
With my small understanding of algebra and your explanation, these difficult to understand processes are brought to light.
You remind me of Richard Feynman, I knew his wife, we where born in the same village. I met him several times, no matter how complex the subject, he could explain it.
Thank you!
Thanks. I very much appreciate the thought.
This is some of the best content on TH-cam. Thanks for everything, David Butler
FINALLY! A new episode from the great Mr. Butler.
Many thanks Sir.
You are seriously an amazing teacher! If I would have had you when I was young, no telling where I would be today. But I am expanding my mind now
You are as wonderful as the universe. How can you explain so fluently without looking at the notes. The force made the whole universe also made everything on earth. And your intelligence is a mere reflection of the greater intelligence above.
Dear David Butler, You have clearly explained, in this video, the relationship between certain ideas that I have been trying to understand the significance of, for ages. Thank-you.
Every episode is a goldmine of wisdom! Thank you sir.
Its only wisdom if you can understand it..lol
David, your videos never disappoint. They are excellent!
Absolutely outstanding work. Time, care and attention put into every detail of the series. Thank you sir
I love your videos David. I watch them to help me revise for my upcoming physics assessments. I want to study physics and astronomy, I just can't get enough of your videos. Well done.
@Music, raw. I will look into that, it looks very interesting. Good music by the way.
Imagine you are David's neighbor and relaxing in your backyard just behind that white wall while listening to David working on his next video
Wow.
I will certainly quit youtube
One can dream
Imagine it.
Well, you should not lose a second and start recording the whole thing. Then you start a YT channel where you claim you are a time traveller and prove it with the recording. Next thing that will happen is subscribers will start to send you money.
Cant wait for the next segment. Wish you well, Mr Butler 🙂
This is exactly what I was looking for thank you for all the work you put into these series!! Instant fan!
One of the best tutorials on TH-cam and the entire internet period.
I hope we reach the technological singularity soon so we all can continue watching David Butler's videos forever.
You and Skynet.
Yes, yes, but.....
Meow?
David epitomizes the very meaning of a teacher and education.
Thank you David Butler, you fulfill my fascination of the stars by making these great videos.
Only David can pull off wearing burkenstocks with socks on! Wearin' them like a boss!
I really enjoy listening to you talk about all these miraculous things.
I love your work Mr. Butler. Always so clear and well-considered. Thank you for making such quality material available to us all.
Great topic and channel!
Welcome back Mr. Butler! As always a very enjoyable video. Thank you!
I have to say 'thank you' for excellent work. Clear, linear easy to understand and introduction to all that baffling terminology.
love the content and its delivery
hate the 9 commercials i was dragged through
Just a BRILLIANT BEAUTIFUL and lucid presentation Sir! THANK YOU. Although I've been interested in these subjects for DECADES, read countless books and seen numerous good videos, this is at the TOP of the list for concise clarity.
Your work is GREATLY appreciated!
David, I wish you were my lecturer way back when I was studying physics at uni. Fabulous!
I love your videos. So informative and somehow calming. You're the great teacher I never had.
The start of a new David Butler series! How fortunate that I'd already opened a bottle of wine, but had not yet drunk too much of it to understand.
awesome video. it was like watching a beautiful suspense movie. Very informative with simple and straight explanation.
Imagine how much knowledge this man has. Love your explanations Sir. Long live
All my appointments for the evening are canceled. I will be busy watching this over and over again. Thank you Mr David
Love your videos Mr. Butler. Keep going. Thanks
I always reccomend this channel to everyone I know. These are the best videos. So relaxing. I always listen at night in bed and it feels like I'm travelling the universe. The long videos are so good.
i wish i could have had you as a school teacher. the music is an ingenious touch!
The way you explain the topics I love is amazing ! keep up the great work!!!!
This is my favorite channel on TH-cam.
Honestly best channel and best content on youtube
It's insane how much research you do for all your videos. This one was great to watch. Thanks
Thank you so much for uploading this video Mr. David, I always feel happy watching your videos!
Mind blowing, all that i already know from many sources, but that moderate but steady flow of history is so consistent. You really love what you talking about.
Wow a new video! What pleasant surprise. Thank you for making these and providing them for the world to watch!
Great video as always, despite de absurd 9x10^73 ads.
There are no ads on the music free version.
When I watched this video it blew my mind, the wealth of super interesting info that he presents and summarizes. Can't wait to reach the next chapter.
This video explains the Black Body radiation in a way that enabled me to finally understand. Good job!
Thank you so much for sharing this series with us. I find your presentations absolutely fascinating and the video quality is great.
Thank you for your informative video, it drew me in and held me until the end. Well done! Steve
Great videos but I'm yet to stay awake til the end of one xxxzzzzzzzzzz.. so chills me out
We appreciate you, David.
Dat background music doe lol perfect! Im glad u included wat the music was in the description =) yes! was just wondering and BAM! there it lies.. u da man!
Gold !
How can anyone dislike this... it's beyond me...
Good stuff as always. I've watched and re watched your videos.
Great video. Thank you, sir.
This is excellent! I appreciate what you have done here
Who could dislike this video?
As always brilliant and easy to understand!!!
Awesome & Thanks again Mr. Butler!🪐☄️🌎
You are an amazing teacher!! Thank you for these videos!
amazing
best channel ever - never an ad too!
Thank you from the bottom of my heart sir for the amazing content. I can’t thank you enough, i enjoy your channel and enjoy listening to you, thank you very much.
Nice video. Wish I was smart enough to understand all of it, but still learned a lot. Very interesting.
Thank you very much for this great video, professor Butler.
Always enjoy your video's,, you explain subjects so well.. great job..
Tremendous. These are the best explanations online.
Lovely video! Two things I have always wondered, perhaps someone can clarify: In the single photon double slit experiment how do we A) Know that a single photon is emitted at a time and B) Know precisely where it hits the detector.
Whenever experiments are discussed I am always curious what ingenious methods were used to achieve the results! It makes me appreciate the experiments vastly more when I can somewhat grasp the mechanics, without said grasp it can sometimes all seem a bit fantastic and esoteric to me. I'm certain there is a process by which we do both, but I don't know it and I'd love to hear from you all! It's probably a basic question, but I really don't know how we measure a photon striking a grid on a detector.
Great question and response
Love you David , hope you are doing well and keep up the good work
Thanks Mr Butler for sharing this with us;
I just found your page. I’m totally hooked!
I didn't know socks and sandals are in style!! Going to put mine on now!!
Hats off to you sir, brilliant as always. I tend to think of joules/Newton-meters as units of electrical work. Cheers for the grounding.
Fantastic presentation…much appreciated
Thanks David, your videos are awesome!
I am totally intrigued with your excellent presentation. For that, I am a new subscriber.
Got to admit i dont like the hypotheis "the light particle interferes with itself". I think its more a case of it just being thats how space is shaped, the field of space makes a particle travel in a defraction pattern. However a device which meassures where the particle is going is flattening space, and that particle no longer travels through bumpy space and just goes straight. Hence no interference pattern when measuring
Brilliant as always, cannot thank you enough!
This is amazing! So succinct
Thank you for another highly interesting video, David!
Great to see you back David. Loved How Far Away is It?
excellent, excellent. Thank you sir :D
My guy David back chillaxin by the pool.
What is that off to the left of David in the beginning of the video? It looks like a pool of some sort, but the water isn't moving whatsoever.
I watch these at night because his voice soothes me. But it’s 2am and it didn’t work this time. He should do a video on interest rates. That would work.
Greetings from Brasil Mr Butler. In times when my country's president deny science so hard, your vídeos helps a lot!
Magnificent presentation. My favorite subject was Thermo. I wish I had your Blackbody Radiation presentation way back then :)
Great video!
Thank's mr. Butler
nice! always a happy day when a new video comes up!
Thank you for the work you have contributed to the public free of charge for years: you are gold sir.
great presentation. very clear. that quantum mechanics is an attempt to explain particle / wave duality.
PKE Nefedov Experiment was conducted in a non isotropic and homogeneous electric and magnetic field but was changed to a more isotropic and homogeneous system. Are electric and magnetic fields isotropic and homogeneous in observed space?
Thank you sir, you are a true scientist 👊🏽👊🏽👊🏽
you're my favorite science guy
Great video, WELL DONE!
Can anyone help me wrap my head around the complicated equations used in physics and mathematics? Are the greek symbols used in equations holding the same value in all equations? For example, these symbols, +=plus, x=multiply, -=minus, etc. etc. These symbols (for the most part) hold the same meaning in basic math. My question is. Do the greek symbols hold the same value in all equations, or do they hold different values and meanings in each equation? For example, can you read each equation if you learn the meaning of the greek symbols, ( pie= 3.14), ohms, etc., etc? Or the symbols can hold different meanings and values for each equation? Making it necessary to memorize all equations individually instead of memorizing the meaning of each symbol? For example; when I see the + symbol between numbers, I automatically know to add those numbers together, (1+1=2). Or is it that (each symbol has the same meaning in every equation except when it appears as or presented as) For example and similar to the English language. Cacti is plural, or the letter Y is a vowel sometimes, depending on how it is used.
I'm thinking that it is the same as the letters in the alphabet, they have different values and different meanings on a case by case basis, depending on how they are presented or used, and also vary on a case by case basis, and you need to learn each equation to know the exact meaning each symbol/letter each equation. So, there is no master key or legend to reference like a dictionary for the Greek symbols and letters?
If you've read this far thanks a lot for your patience, any and all feedback is greatly appreciated!
Jimmy, Some letters are reserved for frequently used constants like π and c for the speed of light and e for natural log. Otherwise the meaning of a symbol is named in the text around the equation. Hope this helps. Thanks for watching.
The meter stick in your hand is shorter than the one on the table. At (0:36) The yard stick is on the outside and the meter stick is closer to you and it's shorter.
I thought no one would see the slight of hand. I picked up the wrong stick but talked the right stick. Very observant you are.
Yes, thank you David, all the way from Europe, been watching and learning Science from you for free for years, you are the teacher that we always wanted!
Under a national quarantine, the best in class .
Is deffraction limiting why a blue-ray disc holds more data than a standard (red light) DVD?
Nice to see you back Sir!