Head to squarespace.com/floatheadphysics to save 10% off your first purchase of a website or domain using code FLOATHEADPHYSICS Do you prefer such long videos with all the historical details of how our scientific models evolved? [I got a lot of stuff to share on quantum mechanics - so do subscribe to stay tuned for more]
please never ever, even in the dream, think of deleting/removing this video from the internet, at any cost. Already shared with many. This is a treasure.. A true tenacious treasure. I really do feel unlucky that I didn't get to know all these in my college days. I hope this *historical explorative explanation* continues...
@@Starteller But he has a niche where he is helping the larger world. There are true frauds and scamsters in the form of those donning suits and proclaiming to be fund managers. I do not sense danger at all from the gentleman putting across this content for free.
I never understood the photoelectric effect really in my chemistry class, Our teacher just spat out the formulas and didn't gave any intution, thank you mahesh sir, you really helped a lot of students here
That is a problem in many classrooms. So often, students ask “what’s the point” when given formulas and math problems. There should be a unit in every class demonstrating the practical use of these equations and formulas and why they are important
That is because NCERT just slaps us in the face with Kinematics, Gravitation, Mechanics, Electricity, Optics, Quantum mechanics in one year (Class XI). LIke what the fuck are we supposed to learn? The timeline of all these things are parallel. Who did what first? How did we reach here? God knows. Not to mention: The previous 2 years are JUST newtonian physics. Just when you start learning about quantum mechanics (Orbital) in Chemistry, you will be learning Optics in Physics. And when you learn about Quantum mechanics in Physics (Plank, Heisenberg) - you will be learning Material science in Chemistry. What the fuck NCERT?
What makes these videos so good is not just that it explains the science but the fact that you are a really good storyteller. Even besides the science, it's just genuinely entertaining to hear you tell the story of how this all went down.
This video is an intelectual and emotional journey, because your story telling is excelent. I am a physics proffesor and i really love and apreciatte this videos... favourite channel on physics by far. Greetings from Argentina.
Try this on: We ALREADY KNEW (way back in 1831) that an Induced voltage is proportional to rate of change of magnetic flux. There is no reason at all to be confused when light of higher frequency imparts more kinetic energy to liberated electrons. It should have been 100% expected! It is only the quirkiness of biological vision system (that interprets frequency as colour instead of brightness) that confused Einstein and others. The observed quantitization is entirely due to the course detection method (while matter is granular, and clicky - light is certainly not) The same applies when considering black body radiation. The light is coming from MATTER, which, unlike light, is granular, this naturally affects the nature of the light that it emits. So ignoring Faraday's discovery that Induced voltage is proportional to the rate of change of magnetic flux, and then also imputing the course nature of the measuring method (counting liberated electrons) onto light, we chose to believe that light traveled in discreet lumps, carrying precise and specific measures of energy. This is not reality. Photons are only an accounting system that gives us the right numbers. We should not conflate abacus beads with dollars. Light is not like ice cubes. Our finest means of measuring light is by counting liberated electrons. If your only means of measuring water is in complete buckets full, you will have a very odd way of thinking about water. We need to stop conflating the nature of the measuring medium with the nature of what is being measured. Photons do not exist. The photoelectric effect is easy to understand in terms of 1831 knowledge, plus the fact that matter is granular. Yes, photon theory delivers useful and reliable predictions - but nobody believes that abacus beads are dollars.
I understand his videos are entertaining but a least do not BELIEVE in them. It is not REAL science. He uses science to explain something that does not exist and fool you all. there's no such thing as Quantum Physics.
Try this on: We ALREADY KNEW (way back in 1831) that an Induced voltage is proportional to rate of change of magnetic flux. There is no reason at all to be confused when light of higher frequency imparts more kinetic energy to liberated electrons. It should have been 100% expected! It is only the quirkiness of biological vision system (that interprets frequency as colour instead of brightness) that confused Einstein and others. The observed quantitization is entirely due to the course detection method (while matter is granular, and clicky - light is certainly not) The same applies when considering black body radiation. The light is coming from MATTER, which, unlike light, is granular, this naturally affects the nature of the light that it emits. So ignoring Faraday's discovery that Induced voltage is proportional to the rate of change of magnetic flux, and then also imputing the course nature of the measuring method (counting liberated electrons) onto light, we chose to believe that light traveled in discreet lumps, carrying precise and specific measures of energy. This is not reality. Photons are only an accounting system that gives us the right numbers. We should not conflate abacus beads with dollars. Light is not like ice cubes. Our finest means of measuring light is by counting liberated electrons. If your only means of measuring water is in complete buckets full, you will have a very odd way of thinking about water. We need to stop conflating the nature of the measuring medium with the nature of what is being measured. Photons do not exist. The photoelectric effect is easy to understand in terms of 1831 knowledge, plus the fact that matter is granular. Yes, photon theory delivers useful and reliable predictions - but nobody believes that abacus beads are dollars.
For many years, I tried to understand the concept of quantum mechanics; I passed quantum mechanics courses by pure memory and practice without really comprehending it until I started watching your videos. I realized how little I actually knew. Thank you.
one of the weirdest, saddest, results of my psychedelic use in the 60s, was the loss of my ability to understand math and physics. BUT, watching your videos i almost GET IT! thanks!
@@knq1 i tripped maybe 200 times, the last time being the altamont stones concert at the end of the 60s. there were many positive gains as well as real losses. we were taking lots of 'brown mescaline' which was probably just acid. the 60s were wonderful, but there was also a ton of bullshit hippies to wade through... but the real ones were worth it.
You have told this story like it has never been told before, with clarity of the wonderment that it truly deserves. Textbooks give us the results. But to know the real magic you have to follow the path that was taken, and you have done this here with unmatched excellence. Bravo and thank you.
I tip my hat, Sir. Most excellent explanation. SO good in fact, that I have a BIG request. Can you please do the same thing but for the Double Slit experiment? My understanding is that they had the same experience with their off the wall results. I'd love for you to use your amazing talent to retell that historical moment in time with the same in depth storytelling telling used for this one! Many thank yous! We appreciate you 🤗
Awesome set of videos. Mahesh is one of the best science educators. Right up there with NDGT, Sean Carroll, Krauss etc. breaks down complex theories into something very understandable. Excellent channel, cannot recommend enough.
Absolute fire 🔥 You're so good at encapsulating these discoveries into a digestable and intuitive story. I'd love to see a video on Planck and his experiments. The Planck units are mind bending.
What Millikan did was not diabolical. It was good Science. It is what one is supposed to do, to test a theory in the lab. He tried to disprove the theory and ended up proving it. Kudos to Millikan.
@@infn8loopmusic it's the only way to test a hypothesis. It is only if a hypothesis avoids being disproven whilst making accurate predictions that it can be accepted as a theory.
When I saw the thumbnail of this video, I was really excited, and I literally waited 2 days before clicking on it so that I could watch it with proper time, and despite all the expectations I had, you still blew my mind man. You literally answered one of the biggest questions I had for years. Hats off. I hope you cover the entirity of the quantum revolution, your explanations are the only way my small brain can comprehend such things LOL.
I just watched this incredible video on light particle duality, and it's the day before my test on the topic. I've learned more from this video than I did in the past two weeks at school. Thank you so much! You saved me !
Just stumbled upon a couple of your videos today and I have to say that you come across as a very talented science communicator who can explain the who’s, how’s, what’s and why’s clearly and enthusiastically. Well done and keep up the great work! You have a new fan!
Can't tell you how much I enjoyed that video! Amazing. Understanding the history behind scientific advances gives you a much deeper insight into what is going on. Even understanding the personalities of the people involved provides perspective. Thanks for making another great video.
These videos are always so fun. i learned all of this in my class as well, but the way u present it as a story is just chef kiss There is so much more to concepts and ideas in physcis than just solving questions
Bravo, fantastic video, perfect to simply this very unintuitive concept. As an engineer always trying to explain things in everyday terms, this truly is one of the best I have ever come across on TH-cam. Been a huge fan for a long time, looking forward to more!
From another engineer... Try this on: We ALREADY KNEW (way back in 1831) that an Induced voltage is proportional to rate of change of magnetic flux. There is no reason at all to be confused when light of higher frequency imparts more kinetic energy to liberated electrons. It should have been 100% expected! It is only the quirkiness of biological vision system (that interprets frequency as colour instead of brightness) that confused Einstein and others. The observed quantitization is entirely due to the course detection method (while matter is granular, and clicky - light is certainly not) The same applies when considering black body radiation. The light is coming from MATTER, which, unlike light, is granular, this naturally affects the nature of the light that it emits. So ignoring Faraday's discovery that Induced voltage is proportional to the rate of change of magnetic flux, and then also imputing the course nature of the measuring method (counting liberated electrons) onto light, we chose to believe that light traveled in discreet lumps, carrying precise and specific measures of energy. This is not reality. Photons are only an accounting system that gives us the right numbers. We should not conflate abacus beads with dollars. Light is not like ice cubes. Our finest means of measuring light is by counting liberated electrons. If your only means of measuring water is in complete buckets full, you will have a very odd way of thinking about water. We need to stop conflating the nature of the measuring medium with the nature of what is being measured. Photons do not exist. The photoelectric effect is easy to understand in terms of 1831 knowledge, plus the fact that matter is granular. Yes, photon theory delivers useful and reliable predictions - but nobody believes that abacus beads are dollars.
I like the way you explain things in an initiative way. But more than that, your obvious passion and joy for the subject is infectious. I absolutely love the delivery of your content. Keep it up 🙌
Incredibly, Lenard's great experimental skills not only led to Einstein getting his Nobel Prize, it led to Roentgen becoming the first Nobel laurate in Physics and superfamous. Roentgen asked Lenard if he could borrow one of Lenard's electron gun tubes, the most powerful up to then. Lenard was busy doing other things and agreed. Roentgen ended discovering X-rays (Roentgen Rays in Germany) and Lenard became deeply envious. He said that he would have easily discovered X-rays had not Roentgen pestered him and asked for his device.
With all the potential energy in the universe, yours burns the brightest! I’ve been enjoying all of your content for some time now, especially when you start having hypothetical conversations with Einstein. I hope you know, your explanations and animations are so well done that even a 40 year old like me, who never opened a book in school, in fact, barely graduated high school and since have worked in construction, can fully understand and appreciate these concepts, and at the same time make me want to know everything there is to know. I’m certain that if growing up I had teachers who were half as enthusiastic, energetic and engaging as you, and a few of the other creators who’s content I’ve become enthralled within the last few years, we would all be better for it. 🫶🏼 Thanks Mahesh, I’ll see you in next one!
Hi Mahesh, you are such a passionate and exceptional tutor! I love your videos. Please make the effort to explain Planck’s contribution to explain the black body radiation.
The historical perspective and the illustrative figures you present are so informative and entertaining. As a lapsed physicist, i learned all the equations, but never the history and perspective. You rekindle the joy in science and discovery. Thank you.
Hamesh you’re incredible and your enthusiasm combined with your incredible teaching skills makes everybody love physics! I came across a piece of text, which revealed you have grown your interest in physics by watching Dutch physicist Walter Lewin and his incredible lectures. With the help of your amazing animations you do a better job, but Lewin was limited to what was available to him at his time. Thanks Hamesh it’s a pleasure following you on TH-cam.
The way you explain these complex yet beautiful theories with mathematics included, is just so amazing... Your style is gonna help me a lot in writing my own book about quantum mechanics for the young curious minds... Thanks a lot man! ♡
You are brilliant at explaining things. I just love the way you talk through a whole internal journey to reaching understanding, you are truly a great teacher. Also, learning about the history and evolution of these ideas is fascinating.
Not sure how I stumbled on your channel a year or so ago, but I’m certainly glad I did. Great stuff! Love the science, the history, and the ability to explain conplex ideas to dummies like me so I can understand it. 👏
Great video ( as always!) The waiting was worth it! I love this channel and your way so enthusiastic of explaining the most complicated things in a super easy way. Please, keep uploading more videos.
There were also solid theoretical arguments against Einstein's theory - it went against Maxwell's equations. And that's no small thing. I can also add that Millikan still didn't believe Einstein's _explanation_ for the photoelectric effect, but he admitted that it gave the true result.
It is honestly amazing and sad that at 68 yo I have gained so much understanding, through a wonderful video, of something so complex yet so obviously simple dynamics. WOW, thank you. Things just clicked. Regards from South Africa
Sir, that was absolutely the most fun I've had in a while! I had so much fun linking things and writing notes for myself! Thank you so very much! Love your videos! (Especially the quantum mechanics ones)
I love the fact that Planck tried to pay his respect to Maxwell by keeping his hypothesis aligned with wave nature of particle. He did not claim that light was a particle but light transferred energies in discrete chunks. On the other hand, Einstein abolished the whole idea of wave nature of light.
This video is a really good explanation. You don’t just tell us the information, you instead put us in the perspective of these physicists all those years ago and build up to the current understanding of wave/particle duality of light. I learned about photoelectric effect in school recently and didn’t really think much of it, but this really helped me understand the significance
Would you please make a video about Max Plank, the black body radiation and the ultraviolet catastrophe? Just as you do it always, with some History backgriund and passion for physics. ❤
I love how you are clearly enthusiastic about this topic. Only a handful of people who make similar content are able to convey their enthusiasm (hanna fry, matt Parker, like them) I'm glad I found your channel, subbed
I was always intrigued by the way scientists approached problems, not only the mathematical formulas but from the imaginative side, the way you explain it is a luxury, congratulations, you are an excellent storyteller!
Never dare to stop your work. You are the only one on whole of the youtube who doesn't use memorized words but gives intuitive understanding. You are really underrated. Also please add the title "photoelectric effect" somehow after your title of "we discovered......by accident" so that people get your video after they search for photoelectric effect. I learnt about the effect just this month but was not recommended your video when searched youtube about it. I clicked this video for just curiosity and voila.
Your videos are the best in the physics area and this one is a prime example. I watched it multiple times and enjoy it every time! Thanks for your the hard work to create it!
Thanks @Mahesh_Shenoy The water/ice analogy for explaining the quantization of light was brilliant and effective. I've watched many TH-cam videos but hadn't come across such a simple visualization. Explaining science with its detailed history has a greater impact. Teaching science through laws/hypotheses, and the experiments that go with it is essential. However, taking students through the journey of discovery helps develop critical thinking. For instance, understanding what led a scientist to design an experiment in a particular way, how they overcame technological limitations, and how human emotions influenced their choices of experiments can foster a better scientific temperament among students. I'd love to see an explainer video on black body radiation that traces its history.
Fun fact: in today's science, we use these so called photoelectrons to determine of which elements a material is made of bc they have show specific energies depending from which atom they com from. It's called analysis by XPS.
Head to squarespace.com/floatheadphysics to save 10% off your first purchase of a website or domain using code FLOATHEADPHYSICS
Do you prefer such long videos with all the historical details of how our scientific models evolved?
[I got a lot of stuff to share on quantum mechanics - so do subscribe to stay tuned for more]
To be clear, this transpired after the so-called "Carrington event" of 1859, is that correct?
Wait, so Planck's constant is a spoon? ;)
Dear pseudo-scientist, answer this (I'm the author of this question)
"What was the temperature of the film inside the camera while being on the Moon?"
@@Starteller What moon?
@@Mahesh_Shenoy Earth's moon. That's the ONLY called "the Moon" The others are "a moon" or "the moon of"
please never ever, even in the dream, think of deleting/removing this video from the internet, at any cost. Already shared with many. This is a treasure.. A true tenacious treasure. I really do feel unlucky that I didn't get to know all these in my college days. I hope this *historical explorative explanation* continues...
This comment is on the thumbnail
Congratulations!! your comment is now on the thumbnail
More should do this , first time here first vid of his I'm watching, because this comment
Same here, fantastic video. He has an infectious passion for science - I totally love it
Food for thought. Does the gravitational wave collapse when detected? What does this say about the nature of the graviton?
Your videos aren't just informative, they are a complete joy to watch.
Glad you like them! :)
I love how you have conversations with the great scientists!
Absolutely
He is a fraud. I challenge him with a REAL physics extremely easy question and he refuses to do it.
@@Starteller But he has a niche where he is helping the larger world. There are true frauds and scamsters in the form of those donning suits and proclaiming to be fund managers. I do not sense danger at all from the gentleman putting across this content for free.
I never understood the photoelectric effect really in my chemistry class, Our teacher just spat out the formulas and didn't gave any intution, thank you mahesh sir, you really helped a lot of students here
This isnt only useful to students…
That is a problem in many classrooms. So often, students ask “what’s the point” when given formulas and math problems. There should be a unit in every class demonstrating the practical use of these equations and formulas and why they are important
That is because NCERT just slaps us in the face with Kinematics, Gravitation, Mechanics, Electricity, Optics, Quantum mechanics in one year (Class XI).
LIke what the fuck are we supposed to learn? The timeline of all these things are parallel.
Who did what first? How did we reach here? God knows.
Not to mention: The previous 2 years are JUST newtonian physics.
Just when you start learning about quantum mechanics (Orbital) in Chemistry, you will be learning Optics in Physics. And when you learn about Quantum mechanics in Physics (Plank, Heisenberg) - you will be learning Material science in Chemistry. What the fuck NCERT?
What makes these videos so good is not just that it explains the science but the fact that you are a really good storyteller. Even besides the science, it's just genuinely entertaining to hear you tell the story of how this all went down.
This video is an intelectual and emotional journey, because your story telling is excelent.
I am a physics proffesor and i really love and apreciatte this videos... favourite channel on physics by far. Greetings from Argentina.
@@enzorb Greetings professor!! So good to hear this :)
Try this on:
We ALREADY KNEW (way back in 1831) that an Induced voltage is proportional to rate of change of magnetic flux. There is no reason at all to be confused when light of higher frequency imparts more kinetic energy to liberated electrons. It should have been 100% expected!
It is only the quirkiness of biological vision system (that interprets frequency as colour instead of brightness) that confused Einstein and others.
The observed quantitization is entirely due to the course detection method (while matter is granular, and clicky - light is certainly not)
The same applies when considering black body radiation. The light is coming from MATTER, which, unlike light, is granular, this naturally affects the nature of the light that it emits.
So ignoring Faraday's discovery that Induced voltage is proportional to the rate of change of magnetic flux, and then also imputing the course nature of the measuring method (counting liberated electrons) onto light, we chose to believe that light traveled in discreet lumps, carrying precise and specific measures of energy.
This is not reality.
Photons are only an accounting system that gives us the right numbers.
We should not conflate abacus beads with dollars.
Light is not like ice cubes.
Our finest means of measuring light is by counting liberated electrons.
If your only means of measuring water is in complete buckets full, you will have a very odd way of thinking about water.
We need to stop conflating the nature of the measuring medium with the nature of what is being measured.
Photons do not exist.
The photoelectric effect is easy to understand in terms of 1831 knowledge, plus the fact that matter is granular.
Yes, photon theory delivers useful and reliable predictions - but nobody believes that abacus beads are dollars.
Please make a video on BLACKBODY RADIATION AND RESEARCH OF MAX PLANCK
No. We don't need any break. We can continue watching your videos endlessly
@@rushikeshkirtikar6147 🔭🔬🧬🧫⚗️
❤
I understand his videos are entertaining but a least do not BELIEVE in them. It is not REAL science. He uses science to explain something that does not exist and fool you all. there's no such thing as Quantum Physics.
Food for thought. Does the gravitational wave collapse when detected? What does this say about the nature of the graviton?
I do. I need to give my brain some time to recover from this video.
Your enthusiasm combined with your willingness to pretend you're conversing with dead physicists makes you a truly phenomenal teacher.
How did you know they are dead. Did you open the casket to observe the body?
I love when the dead scientists say "but Mahesh...". You know you're about to learn something good
@@saketrashmi they could be dead or alive until you open it
@@icejuice9316 Schrodinger's physicists
@@icejuice9316 such a gold reply this is 😂
Taking the time to go through the thoughts and experiments at the time is so important to a deeper understanding.
Yes absolutely!!
Try this on:
We ALREADY KNEW (way back in 1831) that an Induced voltage is proportional to rate of change of magnetic flux. There is no reason at all to be confused when light of higher frequency imparts more kinetic energy to liberated electrons. It should have been 100% expected!
It is only the quirkiness of biological vision system (that interprets frequency as colour instead of brightness) that confused Einstein and others.
The observed quantitization is entirely due to the course detection method (while matter is granular, and clicky - light is certainly not)
The same applies when considering black body radiation. The light is coming from MATTER, which, unlike light, is granular, this naturally affects the nature of the light that it emits.
So ignoring Faraday's discovery that Induced voltage is proportional to the rate of change of magnetic flux, and then also imputing the course nature of the measuring method (counting liberated electrons) onto light, we chose to believe that light traveled in discreet lumps, carrying precise and specific measures of energy.
This is not reality.
Photons are only an accounting system that gives us the right numbers.
We should not conflate abacus beads with dollars.
Light is not like ice cubes.
Our finest means of measuring light is by counting liberated electrons.
If your only means of measuring water is in complete buckets full, you will have a very odd way of thinking about water.
We need to stop conflating the nature of the measuring medium with the nature of what is being measured.
Photons do not exist.
The photoelectric effect is easy to understand in terms of 1831 knowledge, plus the fact that matter is granular.
Yes, photon theory delivers useful and reliable predictions - but nobody believes that abacus beads are dollars.
For many years, I tried to understand the concept of quantum mechanics; I passed quantum mechanics courses by pure memory and practice without really comprehending it until I started watching your videos. I realized how little I actually knew. Thank you.
The joy in your presentation is infectious. I can't wipe the smile off my face while watching this! If only my teachers/lecturers had this enthusiasm
Ideally if u are truly understand ing physics u shd have a frown on ur face 😂
one of the weirdest, saddest, results of my psychedelic use in the 60s, was the loss of my ability to understand math and physics. BUT, watching your videos i almost GET IT! thanks!
What substance was it? Did you gain anything positive despite your loss? Was that the only thing you lost?
@@knq1 i tripped maybe 200 times, the last time being the altamont stones concert at the end of the 60s. there were many positive gains as well as real losses. we were taking lots of 'brown mescaline' which was probably just acid. the 60s were wonderful, but there was also a ton of bullshit hippies to wade through... but the real ones were worth it.
That’s very strange
@@sleethmitchellKnow exactly what you are talking about (though my count was much, much less -- like only 3 🤭)
yea, I think I only lost, no gain
You have told this story like it has never been told before, with clarity of the wonderment that it truly deserves. Textbooks give us the results. But to know the real magic you have to follow the path that was taken, and you have done this here with unmatched excellence. Bravo and thank you.
I tip my hat, Sir. Most excellent explanation. SO good in fact, that I have a BIG request. Can you please do the same thing but for the Double Slit experiment? My understanding is that they had the same experience with their off the wall results. I'd love for you to use your amazing talent to retell that historical moment in time with the same in depth storytelling telling used for this one! Many thank yous! We appreciate you 🤗
Awesome set of videos. Mahesh is one of the best science educators. Right up there with NDGT, Sean Carroll, Krauss etc. breaks down complex theories into something very understandable.
Excellent channel, cannot recommend enough.
🎉❤❤🎉🎉
Absolute fire 🔥 You're so good at encapsulating these discoveries into a digestable and intuitive story. I'd love to see a video on Planck and his experiments. The Planck units are mind bending.
I love when you explain physics along with a bit of history. Great video!
What Millikan did was not diabolical. It was good Science. It is what one is supposed to do, to test a theory in the lab. He tried to disprove the theory and ended up proving it. Kudos to Millikan.
Yep, science requires testable, i.e. disprovable, hypotheses and it is good science to attempt to do so
@@phyphor Thats why Climate Change isn't science
He ended up not disproving it.
Attempting to disprove a theory is often the most direct approach to solidifying it's evidence for acceptance / proving it.
@@infn8loopmusic it's the only way to test a hypothesis. It is only if a hypothesis avoids being disproven whilst making accurate predictions that it can be accepted as a theory.
love this sir! im 15 and cannot wait to learn these in detail in the future
The way you break down theoretical/experimental process is fantastic while being entertaining and NOT patronizing. Amazing!
Thank you for your work!
Your all topics are helpful and you make every topic so easy that I can easily understand those . Thank you sir
Always welcome 🙏
When I saw the thumbnail of this video, I was really excited, and I literally waited 2 days before clicking on it so that I could watch it with proper time, and despite all the expectations I had, you still blew my mind man. You literally answered one of the biggest questions I had for years. Hats off. I hope you cover the entirity of the quantum revolution, your explanations are the only way my small brain can comprehend such things LOL.
Been looking forward to this for a while now. Thank you for getting into quantum mechanics 🙏
Hope you enjoy it!
I have not seen such a clear explanation anytime before. Mind blowing!!
I just watched this incredible video on light particle duality, and it's the day before my test on the topic. I've learned more from this video than I did in the past two weeks at school. Thank you so much! You saved me !
I was waiting so excitedly for this. This is extraordinary!!
Yay! Glad you enjoyed 🎉
Just stumbled upon a couple of your videos today and I have to say that you come across as a very talented science communicator who can explain the who’s, how’s, what’s and why’s clearly and enthusiastically. Well done and keep up the great work! You have a new fan!
I wish you would have been my teacher in physics. Our teachers could not explain so powerful. Congrats on your work.
Can't tell you how much I enjoyed that video! Amazing. Understanding the history behind scientific advances gives you a much deeper insight into what is going on. Even understanding the personalities of the people involved provides perspective. Thanks for making another great video.
16:30 A much COOLER idea indeed
@@ginalley haha! Nice, you spotted it!!
These videos are always so fun. i learned all of this in my class as well, but the way u present it as a story is just chef kiss
There is so much more to concepts and ideas in physcis than just solving questions
Bravo, fantastic video, perfect to simply this very unintuitive concept. As an engineer always trying to explain things in everyday terms, this truly is one of the best I have ever come across on TH-cam. Been a huge fan for a long time, looking forward to more!
From another engineer...
Try this on:
We ALREADY KNEW (way back in 1831) that an Induced voltage is proportional to rate of change of magnetic flux. There is no reason at all to be confused when light of higher frequency imparts more kinetic energy to liberated electrons. It should have been 100% expected!
It is only the quirkiness of biological vision system (that interprets frequency as colour instead of brightness) that confused Einstein and others.
The observed quantitization is entirely due to the course detection method (while matter is granular, and clicky - light is certainly not)
The same applies when considering black body radiation. The light is coming from MATTER, which, unlike light, is granular, this naturally affects the nature of the light that it emits.
So ignoring Faraday's discovery that Induced voltage is proportional to the rate of change of magnetic flux, and then also imputing the course nature of the measuring method (counting liberated electrons) onto light, we chose to believe that light traveled in discreet lumps, carrying precise and specific measures of energy.
This is not reality.
Photons are only an accounting system that gives us the right numbers.
We should not conflate abacus beads with dollars.
Light is not like ice cubes.
Our finest means of measuring light is by counting liberated electrons.
If your only means of measuring water is in complete buckets full, you will have a very odd way of thinking about water.
We need to stop conflating the nature of the measuring medium with the nature of what is being measured.
Photons do not exist.
The photoelectric effect is easy to understand in terms of 1831 knowledge, plus the fact that matter is granular.
Yes, photon theory delivers useful and reliable predictions - but nobody believes that abacus beads are dollars.
Definitely the best photoelectric effect video on TH-cam
I like the way you explain things in an initiative way. But more than that, your obvious passion and joy for the subject is infectious. I absolutely love the delivery of your content. Keep it up 🙌
Incredibly, Lenard's great experimental skills not only led to Einstein getting his Nobel Prize, it led to Roentgen becoming the first Nobel laurate in Physics and superfamous.
Roentgen asked Lenard if he could borrow one of Lenard's electron gun tubes, the most powerful up to then. Lenard was busy doing other things and agreed. Roentgen ended discovering X-rays (Roentgen Rays in Germany) and Lenard became deeply envious. He said that he would have easily discovered X-rays had not Roentgen pestered him and asked for his device.
Yes yes. Also, I think Hertz passing away suddenly distracted Lenard as well! It was right around that time
tears in the rain bro.
Your teaching style and passion is exactly what I need
With all the potential energy in the universe, yours burns the brightest! I’ve been enjoying all of your content for some time now, especially when you start having hypothetical conversations with Einstein. I hope you know, your explanations and animations are so well done that even a 40 year old like me, who never opened a book in school, in fact, barely graduated high school and since have worked in construction, can fully understand and appreciate these concepts, and at the same time make me want to know everything there is to know. I’m certain that if growing up I had teachers who were half as enthusiastic, energetic and engaging as you, and a few of the other creators who’s content I’ve become enthralled within the last few years, we would all be better for it. 🫶🏼 Thanks Mahesh, I’ll see you in next one!
Wow! This instantly made my day 🎉🎉. Thank you thank you!!!
💯 💯💯💯💯💯💯💯💯💯
Hi Mahesh, you are such a passionate and exceptional tutor! I love your videos. Please make the effort to explain Planck’s contribution to explain the black body radiation.
Thank you very much! Yes, will do!! 🎉
21:04 So you have a new theory for me?
Albert: Yes sir I do
hahah :D
oh wow wow wow... wow
"No matter how intense the light, the electrons don't come out any faster."
"These electrons are *tight*!"
"How do explain that?"
"Super easy, barely an inconvenience."
Food for thought. Does the gravitational wave collapse when detected? What does this say about the nature of the graviton?
If you think about it, it is one of the great jokes of the cosmos that the guy who discovered Planck's constant also happened to be named Planck.
Wasn't it just named after him?
@@rayzecor :|
@@iamamish I understand you had to have been joking but I really don't get the joke
@@rayzecor it’s a version of the Texas sharpshooter fallacy
@@rayzecorthe joke is the absurdity of the statement.
I love how you use the history of the discoveries to help us to understand it all step-by-step
Your joy is infectious
Very good presentation! I'm definitely not a scientist but you are explaining it in such a good way that is understandable for everyone :D
The historical perspective and the illustrative figures you present are so informative and entertaining. As a lapsed physicist, i learned all the equations, but never the history and perspective. You rekindle the joy in science and discovery. Thank you.
I just dive in joy with you like i am sitting in front of you and you are talking directly to me . Knowing what i am asking 😅
Hamesh you’re incredible and your enthusiasm combined with your incredible teaching skills makes everybody love physics!
I came across a piece of text, which revealed you have grown your interest in physics by watching Dutch physicist Walter Lewin and his incredible lectures. With the help of your amazing animations you do a better job, but Lewin was limited to what was available to him at his time. Thanks Hamesh it’s a pleasure following you on TH-cam.
Great video ^^
Thanks alot for the beautiful explanation, it helped me in this year syllabus.
Please make more videos, I love watching them
The way you explain these complex yet beautiful theories with mathematics included, is just so amazing... Your style is gonna help me a lot in writing my own book about quantum mechanics for the young curious minds...
Thanks a lot man! ♡
I had read in class. . I just knew formula.But never understood this well. Incredible ❤
Fantastic!
Your enthusiasm and sheer joy in understanding something is, well I love it!
Your videos are outstanding! Love your attitude and energy, as well as your delivery. Keep it up! Subscribed!
Thank you! And welcome 🤗
You are brilliant at explaining things. I just love the way you talk through a whole internal journey to reaching understanding, you are truly a great teacher.
Also, learning about the history and evolution of these ideas is fascinating.
Perfect timing for my special relativity course! Your video explanations are amazing
Glad it was helpful!
I always expect contagious energy from you in your videos. And you never disappoint. 🎉
I wish you could upload videos more frequently
Yes, I have an animator onboard now! :)
Bravo! Mahesh for your storytelling style. Bravo!!
BRAVO!! Mahesh BRAVO!!!
I until recently did not understand what a photon is, now I do all thanks to you
Thank you! Thank you 😂
Not sure how I stumbled on your channel a year or so ago, but I’m certainly glad I did. Great stuff! Love the science, the history, and the ability to explain conplex ideas to dummies like me so I can understand it. 👏
another great video.... The history of the discoveries is very intriguing. Please do a follow up with the standardization of the dual nature of light
Great suggestion!!
Great video ( as always!) The waiting was worth it! I love this channel and your way so enthusiastic of explaining the most complicated things in a super easy way. Please, keep uploading more videos.
Nice one, didn't know full details of story!
Without a doubt, the best science TH-cam channel. Awesome explanation in this video. Respect 🙏
Hey i was waiting for this video for soo long 😭😭
Worth the wait!??
Yeh ❤
Great video with great analogies! Best I’ve seen! Thanks.
Stunning work. Hats off to you
Thank you! Cheers!
I just started reading quanta and fields by Sean Carroll and I spent this morning reading about exactly this! You've presented it very well
i was waiting for this video for soooo long
Bravo!!! Mahesh.
Please make video on how the exchange of photons leds to attraction and repulsion of particle
It's truly amazing that you make us digest these concepts so easily with the ituition no one ever gave! thank you so much!!
There were also solid theoretical arguments against Einstein's theory - it went against Maxwell's equations. And that's no small thing.
I can also add that Millikan still didn't believe Einstein's _explanation_ for the photoelectric effect, but he admitted that it gave the true result.
Yes yes and yes! Which only makes it more impressive!!
Wow I had no idea about Millikan's experiments. Thanks so much Mahesh. Another great video!
One of your best. Bravo sir 👏🏻 👏🏻 👏🏻
Really???
@@Mahesh_Shenoyyes, your ice cube analogy is brilliant.
It is honestly amazing and sad that at 68 yo I have gained so much understanding, through a wonderful video, of something so complex yet so obviously simple dynamics. WOW, thank you. Things just clicked.
Regards from South Africa
Brilliant video 👏👏👏It is amazing to see how scientific knowledge takes shape 💯💯
Now I know what 1eV exactly means. Back at school when I was learning this I had no idea
Thanks!! And yes, eV is deceptively hard :D
Sir, that was absolutely the most fun I've had in a while! I had so much fun linking things and writing notes for myself!
Thank you so very much! Love your videos!
(Especially the quantum mechanics ones)
@@srobonasen2566 glad you liked it. More stuff coming soon. Stay tuned :)
I love the fact that Planck tried to pay his respect to Maxwell by keeping his hypothesis aligned with wave nature of particle. He did not claim that light was a particle but light transferred energies in discrete chunks.
On the other hand, Einstein abolished the whole idea of wave nature of light.
This video is a really good explanation. You don’t just tell us the information, you instead put us in the perspective of these physicists all those years ago and build up to the current understanding of wave/particle duality of light. I learned about photoelectric effect in school recently and didn’t really think much of it, but this really helped me understand the significance
Would you please make a video about Max Plank, the black body radiation and the ultraviolet catastrophe? Just as you do it always, with some History backgriund and passion for physics. ❤
That's coming next!
Please continue covering the history of quantum revolution (and black body problem)
This video was so much fun
The intro music just give a positive vibe.
I know right? 😊
I love how you are clearly enthusiastic about this topic. Only a handful of people who make similar content are able to convey their enthusiasm (hanna fry, matt Parker, like them) I'm glad I found your channel, subbed
Always great videos!
I really love your videos, they help us to understand. Thanks for your efforts. Thanks for doing them
One of your best vids
I never thought someone could make learning about physics this interesting for me
Just loved the way you explained 👍😊
Yes PLEASE do a video on blackbody radiation
You make learning physics and it's history very interesting and fun. Great job!! I wish i had a teacher like you back in my school days.
You make science look like a freaking suspense thriller. Glad I found your channel. So grateful 🙏🏼 Love from 🇧🇩
You’re one of the best science educators out there! Not an easy job. Bravo.
Thank you 🎉
I was always intrigued by the way scientists approached problems, not only the mathematical formulas but from the imaginative side, the way you explain it is a luxury, congratulations, you are an excellent storyteller!
Great video!
Never dare to stop your work. You are the only one on whole of the youtube who doesn't use memorized words but gives intuitive understanding. You are really underrated. Also please add the title "photoelectric effect" somehow after your title of "we discovered......by accident" so that people get your video after they search for photoelectric effect. I learnt about the effect just this month but was not recommended your video when searched youtube about it. I clicked this video for just curiosity and voila.
One of the exceptionally fine videos on the photoelectric effect in TH-cam. You truly blew my mind this time.
Your videos are the best in the physics area and this one is a prime example. I watched it multiple times and enjoy it every time! Thanks for your the hard work to create it!
He never gets credit for inventing the Hertz Donut, though. And it had WAY more impact on me in school. Grade school, anyway.
I need to look it up!!
Thanks @Mahesh_Shenoy The water/ice analogy for explaining the quantization of light was brilliant and effective. I've watched many TH-cam videos but hadn't come across such a simple visualization.
Explaining science with its detailed history has a greater impact. Teaching science through laws/hypotheses, and the experiments that go with it is essential. However, taking students through the journey of discovery helps develop critical thinking. For instance, understanding what led a scientist to design an experiment in a particular way, how they overcame technological limitations, and how human emotions influenced their choices of experiments can foster a better scientific temperament among students.
I'd love to see an explainer video on black body radiation that traces its history.
Fun fact: in today's science, we use these so called photoelectrons to determine of which elements a material is made of bc they have show specific energies depending from which atom they com from. It's called analysis by XPS.
the passion that you have for this topic is so enchanting! It really felt like I was going on a journey, please never stop making videos like this