Hey everyone, if you enjoyed this video, then there are 2 more videos on Maxwell's Equations in my playlist on this topic. I've just released the latest one, so go check them all out here, if you want to see more: th-cam.com/play/PLOlz9q28K2e6aNgl1zt1xccyy4Ofl3YAk.html
Path Pathway. Kartavaya path Path padhana Pather Pather ki lakeer Path dena gobar Palothan for ata choon Roti path dena prompt is tawa Roti path lo ????
I would love to get drunk and talk about the nature of the universe.... But I literally have no friends that are interested in any of my core interests.
Omg Parth actually hearted my comment.....btw I am actually just 3 weeks away from starting undergrad Phys...finished high school this summer now just waiting for Jan..wish me luck man Much love, A follower
Goodluck with ur physics undergrad! It can feel awfully like your not cut out for it at times but just remember, everyone feels that way at some point.
The equations attributed to Maxwell are the work of Oliver Heaviside. In Maxwell’s day they used a different style math, Hamiltonians. Parth does a great job on presenting difficult concepts while keeping everything interesting. Enjoy! Ref info: Oliver Heaviside: The Life, Work, and Times of an Electrical Genius of the Victorian Age, Nahin
I'm a Physics major and enjoyed the bathtub analogy. That REALLY put Maxwell's first equation into perspective ANY layperson can understand. Brilliant!
Trust me I never really write comments on you tube. But this is to tell you that you're knowledge and explaining them in the simplest way possible is amazing. I've never really thought of these ways to understand Maxwell equations. It feels like confidence. Thank You❤
This is a phenomenal video. You are the teacher I wish I had at school. Im 49 years old and learning Gauss's Law for the first time. I can actually feel my brain learning. I hope you cover the other three laws just like this.
tbf, Uni proferors are usually pretty bad teachers. They are great researchers but a lot of them have a hard time teaching you complicated concepts if you are not as intelligent as they are.@@justlikethatnowadays8454
I never thought that this equation would ever get into my mind. I am smiling and my mind is just blown in these 10 minutes. Thank you for such a beautiful explanation.
About B: Maxwell just used the letters A through H for vectors in his Treatise on Electricity and Magnetism and some of them stuck and some of them didn’t. A is still used for vector potential, B for magnetic field (or magnetic induction or flux density, depending on who you ask), H for magnetic intensity, etc. Maxwell used C and G for other vectors that I don’t recall at the moment. They, for some reason, never stuck.
What I love about physics and astronomy is this, "It has been said that astronomy and physics is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known." -- Carl Sagan
I have always said : when somebody is able to explain physics, this science is not difficult. You just need a normal brain, and everybody can understand the laws of nature... Thanks for this video, man.
@@SoumilSahu Even maxwells equations will become challenging once u start digging deep into it. Maxwells equation have deep links with relativity and was actually the motivation for developing relativity.
I disagree, everybody can't understand these. All most of the people do is get some information about the topic. Thats what mostly happen in y-tube lectures. Most people think they understood because they are actually visualising only a tiny tip of the iceberg of the total complex nature of reality. Maxwells equation span way beyond classical field theory and goes on in relativity and Quantum field theory. The true interpretation of his equation lies in these theory but yeah a good intro to Maxwells equations no doubt about that.
@@SoumilSahu I know u didn't. All I'm saying is what people think as understanding a topic is merely getting some information on that topic. The deep relation of Maxwell's equation with relativity is the heart of the subject with this just being a tip of the iceberg.
Hey guys! A lot of you seemed to enjoy this video and requested me to make another one... so I made a follow-up! It's a 20 minute thriller (or boring-er, who knows) on another one of Maxwell's Equations. Check it out here: th-cam.com/video/6Aab3k2nsOY/w-d-xo.html
There are 20 of Maxwell's equations. The four you're talking about are Heaviside's equations, which are not the same. I wish you'd do a video about Maxwell's actual equations, and how they work. I'll especially be looking forward to your explanation about quaternion math. Thank you.
A lot of people don't seem to know that the vector equation presented here as Maxwell's was in fact formulated by Oliver Heaviside. Maxwell came up with the 12 equations which Heaviside vectorised and distilled down to 4.
is it true that when maxwell considered and used the mathematical form of faraday's law in work and later sent it to sir faraday, he saw Maxwell's letter Michael Faraday cried
What amazes me the most is the fact that Heaviside was a self taught engineer and mathematician . "I remember my first look at the great treatise of Maxwell's when I was a young man... I saw that it was great, greater and greatest, with prodigious possibilities in its power... I was determined to master the book and set to work. I was very ignorant. I had no knowledge of mathematical analysis (having learned only school algebra and trigonometry which I had largely forgotten) and thus my work was laid out for me. It took me several years before I could understand as much as I possibly could. Then I set Maxwell aside and followed my own course. And I progressed much more quickly... It will be understood that I preach the gospel according to my interpretation of Maxwell."
there really are subtle profound implications in the originals…if you have a LOT of time on your hands…instructive to work thru…they actually all kind of fit together…
Vector field: a good analogy of the wind on a weather map. Divergence: bathtub analogy works well. It's many years since I studied electromagnetism, so it's nice to have a fun refresh without all the mathematics. Although, the mathematical equations have powerful applications. A nice follow up subject would be to look at bubble theory, surface tension etc. That has amazing parallels with electromagnetism, yet it is something that everyone can visualise but few would know how or why the soap films behave in those mysterious ways.
I love the content. You are a great example of a good creator that wants to provide to its audience. You actually go throw all the details instead of refereng to us to go and watch other videos first inorder to keep up with this one. Like you explained the concept of divergence in every single video in these series so me as a new viewer don't haft to watch ten other videos before this one that I'm interested in. This I call an excellent content. You just got a new subscriber!
As a portuguese native speaker, I love the fact that I'm able to understand english and watch someone explaining in just a few minutes, something that my Professor couldn't. Thank you!
Excelent video! 5 years in engineering and I just tunderstand now this. My favorite thing about physics is how they work together and perfect fit with math.
You explained that all so very well and even managed to keep it light and humorous! I was surprised that I was able to completely follow it all the way through thanks to your unique communication style. Well done!
Hi, I really like this video. You nailed it down to the essentials. Many textbooks just assume that the reader knows all the symbols and what is behind them, when in fact many people lacked the formalism and math behind these symbols. So , well done. Thank you!
Keep going! These videos are great! Get that Cambridge physics knowledge and teaching skill shared whilst it’s fresh. I think lots of people will find this current series useful
That's easy. The one he mentioned is del dot B is 0, that's that there are no magnetic monopoles. Another one is del dot E is charge density divided by epsilon, which is the permittivity of free space, that says that the divergence of electric field equals the charge density. The next one is del cross E is -dB/dt, that is, the CURL of the electric field, which measures how much electric field circulates around in a circle, is equal to the (negative of, but it doesn't matter, if you defined north and south poles to be the other way around, or electric charge to be the other way around) time derivative of the magnetic flux at that point, that is, how much magnetic field changes over time. This is that whole deal where you can generate electricity with a moving magnet. And the last one is del cross B is I (current density) divided by mu + dE/dt divided by both mu and epsilon. mu is the permeability of free space, a measure of how easily it is magnetized, while permittivity is you could say, how good something makes as a capacitor. Magnetic materials artificially raise permeability, for instance iron, while insulators raise permittivity by a factor, and that is what their dielectric constant is, and raise the capacitance of a capacitor with that insulator as its dielectric. When you put these 4 equations together, you can get the wave equation in 3 dimensions, with a speed of the reciprocal of epsilon times mu, which is of course the speed of light. There's a common t-shirt you'll see in physics circles, it says "and god said" and then it lists Maxwell's equations, and then "and there was light". And now you get the joke, if it was ever a mystery to you. I got rid of mine since religious or new age nitwits would come up to me and think I was one of them and it's really not a very funny joke anyway.
crazy how it's been around 4 years since the first time i watched this video back in honors physics in my junior year of high school. i had no idea what i wanted to do in college, but now going into my junior year of a mechanical engineering degree with a robotics minor, i can confidently say that i picked the right field AND this video DEFINITELY influenced my passion for physics and the quantum realm. i just started reading vol.2 of feynman's lectures and i hope to get through quantum stuff vol.3 by the end of the year. so, thank you, parth!
Maxwell ,a Scot,was Einstein’s favourite friend though they never met , in fact in Scotland they call him(Maxwell) Scotland’s Einstein. Einstein had a picture of him hanging in his Princeton study.
I love how without physics, we probably wouldn't be here at all. I also love that you have explained Maxwell's Laws so that I could understand them in less than 30 minutes. I took a class that covered it and took a week to get the same content. Well done!
This is glorious! A couple of weeks ago my gf and I watched the episode of the Big Bang Theory you were referring to, and I told her why that expedition was hugely important. I'm not a physicist (my first degree is in engineering) but I told her about the equation and the magnetic monopole. She found it as fascinating as I did when I discovered this fact a few years ago. What an excellent job you did explaining this beautiful equation, Parth. Thank you so much! Keep up the great work. Andrea.
I am taking this course for the third time in different university in different country and it's my first time to understand it that way You are a lifesaver
Was getting D's for physics in the last year of school. But I loved it, because unlike other science classes I had taken I would walk out of the class, and immediately observe something I studied that interested me, like the lake my school was next to, and it's waves. The lights looking dimmer the more I walked away from them. It explained to me why things were happening around me the way they were. That's why I love physics. Not because I understand it, but because it teaches me about my world.
thank u parth . Earlier I had a lot of difficulty with physics but ur videos have forced me to think that its because of my already set mindset where i think i cant understand any of it . But ur videos helped me change my view point about it . so great job and keep it up . It motivates a lot of people like me who are afraid of physics
@@erwinschrodinger9693 for x to very small , sin(x) comes out to be nearly x it can be proved by using the knowledge of limits that u can find out i.e. limit when x approaches 0 then sin(x)/x = x..that's it
Erwin Schrödinger I hope you know that’s only an example of simple harmonic motion which is defined as small angle oscillation and that simplification is made a joke out of. In reality, using an approximation is much more rare that you think and some level of rigor is upheld, approximations are only used to find analytic solutions when it’s difficult to do otherwise.
Great introduction to Maxwell’s Equations. In my mind you really described divergence well. Please try to cover all the equations and explain why there are differential and integral versions of the equations?
That was good, I"ll be listening to you a lot. When they start using letters in math I was done and I loved math. I had to wait 63 years to hear something that made sense. Good job again.
The best thing about physics for me is when my complete lack of understanding confusion and inability to comprehend are negated by someone with the intelligence to explain something so complicated in such a way that even I can understand it. So the best thing about physics is physicists like yourself who take the time to try to educate those who would ordinarily spend their lives in the dark. Thank you
I enjoy your videos alot. Being a physics student.. it motivates me more... Our teachers never teach us this way... That's why sometimes I find physics boring... Thank you again for making the subject so interesting
I really can't believe that I literally unconsciously pressed the like at the end of the video, I LOVE your enthusiasm about physics. I'm an engineering student (3rd year now) and I love maths and physics a lot (even though college takes making something fun boring to whole different level)
I am 64 years old and for some odd reason I have a ‘bucket list’ desire to understand Maxwell’s equations - odd and possibly rather sad I know. Anyway, after watching and reading many things on the subject I came upon your explanation, and all I can say is thank you very much I am now a step closer, the best explanation thus far in my view. Very nicely done and much appreciated 😀👍
Maxwell just used the letters A through H for vectors in his Treatise on Electricity and Magnetism and some of them stuck and some of them didn’t. A is still used for vector potential, B for magnetic field (or magnetic induction or flux density, depending who you ask), H for magnetic intensity, etc.
you are realy good!!! when I was in the phlsic class we didn't understand nothing and the teacher ridiculed us for not inderstanding Your students are so lucky having you as a teacher.
I have almost seen every video on TH-cam regarding divergence but didn't understood any of them but you finally made me understand this concept. A big Tank You and please never stop making physics videos
I love the bath tub analogy for divergence! 😂 I love seeing advanced mathematics applied to physics...not merely learning the math theories! Physics applications get you thinking about the math you just studied! 😊
One miss if I may call it that is that the water flow is also a div=0 because water inside the tap is flowing like inside the magnet, sorry for nitpicking, but the analogy makes sense!
There is no mistake in the explanation. The water leaving through the plug or sink does not come back to the tap or source through some external pipe (at least not mentioned in the video). The tap and plug situation is not like a magnet, it's like a pair of positive and negative electric charges, like electric field flowing from a positive to a negative charge. There is net divergence!
Wow, a great explanation for those of us with basic education. I actually got it this time! My favorite "thing" about physics is the celestial mechanics equations which predict, with extreme accuracy, the positions of celestial bodies. It's what enables us to sit at home and see pictures taken at Mars, Jupiter, even Pluto & beyond. Amazeballs!
When I was in physics class years ago, my instructor covered an equation that explained when a car is driving toward you honking its horn, how to tell how fast it was going. Could you cover that one? Thank you in advance, AWESOME VID BTW!
the upside down triangle has a name, its the 'nabla operator' also known as 'del' which is closely related to the derivative and gives you the divergence or gradient
The equations of integrals are just the opposite of the derivative. So, learn how to do derivatives, and then look up how to do integrals and u should be good!
Kurt Vonnegut said something similar [ and I paraphrase ]: if you cannot explain what you are expounding to a seven-year-old, then you are probably a charlatan.
Hey, great video! So I was just wondering what if the circle region you choose for divergence as the whole vector field, for example, the bathtub scenario you gave, what would be the divergence then? positive, negative or 0?
I tried watching this video about 2 years ago and couldn't get a thing. Today I found it and rewatched and you made it so simple, I dont know how I didn't get it at first
Finally I understand this after jumping from video to video, most assume we know what they are saying, and brush off in a sentence or 2 everything you explained in this video. Here you break it down in detail. I will dig into your other videos now. Thank you
I'm on a roll, watching all the videos on youtube about Maxwell's equations. I've found 3 so far (including this one) that are helpful to me. YES, please, go on to the second equation!
My favorite thing in physics is the silicone oil droplets experiments that demonstrate that the pilot wave theory accounts very well for the double-slit experiment results. The double-slit experiment is also awesome because it has caused so many brilliant physicists to butcher logic in so many delightful ways. Pardon me, but I must go feed my dead cat.
Further experiments have shown that this really isn't the case. When done under the right conditions, eliminating all possible effects (like air currents), the drops don't produce the interference patterns in the double-slit experiment. Quantum weirdness is alive and well. And that's good, because it shows that reality is far stranger and more complicated than we ever thought.
Idiot don't waste the talents of a man for simple exams which determine the intelligence of a person by marks but not by his thinking or his imagination.
wow! man i have subscribed the channel after seeing this video just because of the hard work that's put into it everyone is explaining all the theorys in probably a 11 minute video but you are the only person who has put the work into this and explained it sooooooo easy... Grand Salute
5 ปีที่แล้ว +4
My best thing about physics is the more I know the less I know and there is a scope to know more.🤔
Light is an electromagnetic wave, Maxwell’s equations describe both magnetic and electric fields thus describe light. Maxwell’s most famous accomplishment was proving that light is an electromagnetic wave.
He didn't say .. I think that what he enttended to say is that from a void (0) we can create a vector field that mays seem as a "thing" but in sum is null.
Thank you soo much for such understandable explanations and examples! I've watched about 4-5 videos on the same topic and understood what is going on only after watching your video
CO2 isn't used to build all life on Earth. CO2 is a gas. Are you a gas? Because me, the solvent in my cells is water, there are not a lot of gas based life forms.
@@rjaquaponics9266 CO2 is great in small quantities. 250 parts per million for example. Without at least 200 parts per million we would have an ice age. With zero green house gasses in the atmosphere the average temperature would be -18C and the Earth would be a snowball. CO2 is really bad in large quantities. Disagree? Then take a holiday on Venus! In recent decades the concentration has jumped over 100 parts per million and it's now over 400 parts per million. From Ice Core data it has not been that high at any time in the last 800,000 years at least. Also, at no other time in the last 800,000 years has it risen as fast as it has in the last couple of decades. That's bad! That's very bad! It's not Venus bad, but it is still very bad! Think about it, if 200 parts per million are enough to stop the Earth from becoming a snowball is it really unthinkable that another 200 is responsible for catastrophic climate change? The Climate Scientists are nearly unanimous on this. I subscribe to Nature magazine, I recommend everyone reads the issue dated 19th Sept 2019. They don't mince their words! "Time to Act", "The Hard Truths about Climate Change", "Do or Die"! Nature is perhaps the most respected pier reviewed journal in the world. It is a very sober journal. They do not use language like that! So why is it there? Because no country in the world is yet doing enough! Over a quarter of a century since Rio, the consensus was already formed back then, and the world has barely moved. Every year we leave it the cost of fixing the problem grows. We are in the middle of an massive extinction event. Millions of people are being displaced every year, and whilst it is impossible to know how much of that is climate the numbers are going up whilst the amount of conflict is declining and the *know* some of them are moving because of the climate. The world is already spending 2x10^12 USD per year on mitigating the effects according to some analysis. And yet in the current world the lies of vested interests like Putin and the Koch family seem to be heard more and more instead of the quite pleas by Climate Scientists to look at the evidence. Trump even pulled the US out of the Paris accords and no one in the US seems to care! So finally people with the facts on their side have started to shout too! Let's hope that works! We are in deep shit otherwise!
You seriously believe CO2 controls the temperature on earth? You smoked too much weed in college! The sun absolutely controls the temperature on earth as does the obit and tilt. According to your theory, the northern hemisphere temperature should not change because CO2 has not changed. If CO2 controls the temperature why do we have seasons? Duh! Do you know water is wet? You are fully indoctrinated in the Climate Cult! If Earth was in Venus's distance from the sun and obit... well hell yell CO2 would be sky high because the earth would be baking at 400 degrees! Using Venus as your comparison is insane! It's apples and oranges! I appreciate your long post, but sorry to say you are not dealing with reality. Under 300 ppm CO2, plants stop growing and at 200ppm we would all be dead never mind your theory of an ice age. The sun's energy heats the earth and the normal sun cycles controls the peaks and valleys in temperature. The truth is... CO2 trails temperature not the other way around. This is a fact! A rise in CO2 does not increase temperature. A rise in temperature causes more plant growth and death which in turn rises CO2 via natural decomposition. This is what the records show, when the temp rises, plants grow and CO2 increases... not the other way around!
@@rjaquaponics9266 Of course the Sun controls the climate. But it's just as nonsensical to say that CO2 has no effect as it is to say that the Sun has no effect. It is a complex system and there are a lot of factors. The most important point is that global average temperatures have changed too much and too quickly in recent decades for it to be due to the Sun. So even if nobody had check to see if solar irradiance could be correlated with recent climate change we would already know that it couldn't be the cause, but they have, and it isn't. Not that it would matter if it was! Suppose the Sun *was* the cause. We can't change the Sun, but we *can* stop putting greenhouse gasses into the atmosphere and we could work on ways to reduce them. We know both affect the climate, and we know we are in trouble, and reducing CO2 is the best response. Maybe we can put up space umbrellas, I don't know about you, but I'd rather try something nice and easily reversible first, in the incredibly unlikely event that it turns out putting more CO2 into the atmosphere is actually a good thing we can always burn extra coal to catch up. I never smoke anything. And I have a degree in Physics to prove that I was not high at University. Nobody indoctrinated me at university. They don't tell you what to think, that makes bad scientists. "Under 300 ppm CO2, plants stop growing and at 200ppm we would all be dead never mind your theory of an ice age." - This disagrees with Ice Core data. CO2 has been less than 200ppm within the past 25,000 years! Plants did not stop growing and humans survived. There have only been a few short periods in the past 800,000 years when the concentration went above 300ppm. The last time it was under 300 ppm was 1910. And the time before that was at least 300,000 years ago. Did plants stop growing between 300K years ago and 1911? I'm not suggesting we reduce CO2 to 200ppm, that would probably trigger ice ages. Right now we need to stop it going up. If we can get it under control then 250-300ppm is probably a good target range. "If Earth was in Venus's distance from the sun and obit... well hell yell CO2 would be sky high because the earth would be baking at 400 degrees!" - You seem to be suggesting that greenhouse gasses have zero effect on the surface temperature of Venus. Is that what you are saying? If so how do you explain the fact that Venus is much hotter than Mercury despite the fact that Venus is about 0.72 AU from the Sun and Mercury is 0.47 AU from the Sun. Venus is 1.53 times the distance, and energy per unit area drops off by the square of the distance, so it gets less than half the energy per unit area that Mercury does. But it's much hotter. Still think the atmosphere plays no part at all? There are other examples. Our Moon is the same distance from the Sun we are. It's average surface temperature is about the same -18C that has been calculated as the average the Earth would have with zero greenhouse gasses. "The truth is... CO2 trails temperature not the other way around. This is a fact!" - No, that is not a fact. It *is* true *sometimes*. That's because the system is complicated. There are a large number of forcing factors. If the energy per square meter from the Sun increases (yes, I absolutely agree this is a factor) then the average temperature goes up. This can, for example, melt permafrost, releasing CH4 and CO2 and driving the global average up more, melting more and releasing more. If you cherry pick the data so you only quote those periods when this sort of thing is happening then it looks like CO2 is a cause and not an effect. The *fact* is that it is both.
I think this is the only channel that made me subscribe it just by watching one video usually I don't subscribe before a week but this one landed in an exception you have a really amazing course of thought really good but at the same time it burns my heart that this piece of indian talent isn't in its home ground
Hey everyone, if you enjoyed this video, then there are 2 more videos on Maxwell's Equations in my playlist on this topic. I've just released the latest one, so go check them all out here, if you want to see more: th-cam.com/play/PLOlz9q28K2e6aNgl1zt1xccyy4Ofl3YAk.html
Awesome....!! Thank you so much
for sure bro !!!
Quantum mechanics
Amazing
Path
Pathway. Kartavaya path
Path padhana
Pather
Pather ki lakeer
Path dena gobar
Palothan for ata choon
Roti path dena prompt is tawa
Roti path lo ????
I love how physics creates serious positive divergence of people in the bar when i start talking about it
😅😅😅😅
Too good 😂😂
Bruuuuh me everytime i discuss about physics
😂😂😂
I would love to get drunk and talk about the nature of the universe.... But I literally have no friends that are interested in any of my core interests.
This...just this 10 minutes of my life is called happiness...vector fields..divergence..I get it...I finally get it....thank you...THANK YOU!!!!!!
Omg Parth actually hearted my comment.....btw I am actually just 3 weeks away from starting undergrad Phys...finished high school this summer now just waiting for Jan..wish me luck man
Much love,
A follower
Happyness
Goodluck with ur physics undergrad! It can feel awfully like your not cut out for it at times but just remember, everyone feels that way at some point.
Same man
5 minutes of happiness / 5 minutes of please follow me.
Be honest.
Finally some good content recommended
Olé
As an electrical engineering student who is studying these equations, i am very thankful this really makes it a lot more intuitive
Me
Umm, maybe it taught in engineering as well but we had to study it in XII standard.
The world needs teachers like you. Thank you!!!
Maxwell will be so happy how well someone explained his equation!
Let's Not forget that Maxwell just summarize all the major equations of electricity and magnetism and named those equations after him LOL
@@rashwonsingkai7955 Poor Gauss!
Although I would disagree with the notion that James Clerk Maxwell "just" summarized the equations.
The equations attributed to Maxwell are the work of Oliver Heaviside. In Maxwell’s day they used a different style math, Hamiltonians. Parth does a great job on presenting difficult concepts while keeping everything interesting. Enjoy! Ref info: Oliver Heaviside: The Life, Work, and Times of an Electrical Genius of the Victorian Age, Nahin
The world needs brilliant teachers like you. Cheers.
I'm a Physics major and enjoyed the bathtub analogy. That REALLY put Maxwell's first equation into perspective ANY layperson can understand. Brilliant!
Trust me I never really write comments on you tube.
But this is to tell you that you're knowledge and explaining them in the simplest way possible is amazing.
I've never really thought of these ways to understand Maxwell equations. It feels like confidence. Thank You❤
This is a phenomenal video. You are the teacher I wish I had at school. Im 49 years old and learning Gauss's Law for the first time. I can actually feel my brain learning. I hope you cover the other three laws just like this.
Restore faith in TH-cam algorithm, good recommendation
Haha same here 😱😁
You talk at the speed of light. However, you speak VERY CLEARLY. Love your video.
Almost five years of studying divergence and it only took me 10 minutes to understand the whole concept!
Maybe you were not attending class. Otherwise it doesn’t make sense.
tbf, Uni proferors are usually pretty bad teachers. They are great researchers but a lot of them have a hard time teaching you complicated concepts if you are not as intelligent as they are.@@justlikethatnowadays8454
I never thought that this equation would ever get into my mind. I am smiling and my mind is just blown in these 10 minutes. Thank you for such a beautiful explanation.
About B: Maxwell just used the letters A through H for vectors in his Treatise on Electricity and Magnetism and some of them stuck and some of them didn’t. A is still used for vector potential, B for magnetic field (or magnetic induction or flux density, depending on who you ask), H for magnetic intensity, etc. Maxwell used C and G for other vectors that I don’t recall at the moment. They, for some reason, never stuck.
You must be electric, source but no sink... :)
it's B because of the word "bobine" in french, meaning reel.
What I love about physics and astronomy is this,
"It has been said that astronomy and physics is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known."
-- Carl Sagan
I have always said : when somebody is able to explain physics, this science is not difficult. You just need a normal brain, and everybody can understand the laws of nature... Thanks for this video, man.
I disagree. Some concepts are inherently difficult to understand, quantum mechanics being the best example.
@@SoumilSahu Even maxwells equations will become challenging once u start digging deep into it. Maxwells equation have deep links with relativity and was actually the motivation for developing relativity.
I disagree, everybody can't understand these. All most of the people do is get some information about the topic. Thats what mostly happen in y-tube lectures. Most people think they understood because they are actually visualising only a tiny tip of the iceberg of the total complex nature of reality. Maxwells equation span way beyond classical field theory and goes on in relativity and Quantum field theory. The true interpretation of his equation lies in these theory but yeah a good intro to Maxwells equations no doubt about that.
@@dhritimanroyghatak2408 I didn't make that connection since strangely enough, relativity isn't that non-intuitive to me.
@@SoumilSahu I know u didn't. All I'm saying is what people think as understanding a topic is merely getting some information on that topic. The deep relation of Maxwell's equation with relativity is the heart of the subject with this just being a tip of the iceberg.
This is a good teacher. His words are easy to comprehend by a high school sophomore student.
Ufff finally understood. Science is kinda interesting but need teachers like you.
Hey guys! A lot of you seemed to enjoy this video and requested me to make another one... so I made a follow-up! It's a 20 minute thriller (or boring-er, who knows) on another one of Maxwell's Equations. Check it out here: th-cam.com/video/6Aab3k2nsOY/w-d-xo.html
i love this video thank you!
There are 20 of Maxwell's equations. The four you're talking about are Heaviside's equations, which are not the same. I wish you'd do a video about Maxwell's actual equations, and how they work. I'll especially be looking forward to your explanation about quaternion math. Thank you.
Fantastic work! Keep it up!
Now I understand . Please make a video on 2nd Maxwell equation . Thank you.
ring in eyes is very .... disturbing
A lot of people don't seem to know that the vector equation presented here as Maxwell's was in fact formulated by Oliver Heaviside. Maxwell came up with the 12 equations which Heaviside vectorised and distilled down to 4.
Correct! Maxwell did a great job, but without Heaviside to decipher Maxwell's mess, we would not have Maxwell's equations.
is it true that when maxwell considered and used the mathematical form of faraday's law in work and later sent it to sir faraday,
he saw Maxwell's letter Michael Faraday cried
What amazes me the most is the fact that Heaviside was a self taught engineer and mathematician . "I remember my first look at the great treatise of Maxwell's when I was a young man... I saw that it was great, greater and greatest, with prodigious possibilities in its power... I was determined to master the book and set to work. I was very ignorant. I had no knowledge of mathematical analysis (having learned only school algebra and trigonometry which I had largely forgotten) and thus my work was laid out for me. It took me several years before I could understand as much as I possibly could. Then I set Maxwell aside and followed my own course. And I progressed much more quickly... It will be understood that I preach the gospel according to my interpretation of Maxwell."
there really are subtle profound implications in the originals…if you have a LOT of time on your hands…instructive to work thru…they actually all kind of fit together…
Ohh ... Thx for your input
Vector field: a good analogy of the wind on a weather map.
Divergence: bathtub analogy works well.
It's many years since I studied electromagnetism, so it's nice to have a fun refresh without all the mathematics. Although, the mathematical equations have powerful applications.
A nice follow up subject would be to look at bubble theory, surface tension etc. That has amazing parallels with electromagnetism, yet it is something that everyone can visualise but few would know how or why the soap films behave in those mysterious ways.
I love the content. You are a great example of a good creator that wants to provide to its audience. You actually go throw all the details instead of refereng to us to go and watch other videos first inorder to keep up with this one. Like you explained the concept of divergence in every single video in these series so me as a new viewer don't haft to watch ten other videos before this one that I'm interested in. This I call an excellent content. You just got a new subscriber!
As a portuguese native speaker, I love the fact that I'm able to understand english and watch someone explaining in just a few minutes, something that my Professor couldn't.
Thank you!
Realmente, melhor explicação que encontrei ate agora sobre o tema kk
Excelent video! 5 years in engineering and I just tunderstand now this. My favorite thing about physics is how they work together and perfect fit with math.
Explained in a very simple and interesting manner, will stay in my mind forever now
You explained that all so very well and even managed to keep it light and humorous! I was surprised that I was able to completely follow it all the way through thanks to your unique communication style. Well done!
Hi, I really like this video. You nailed it down to the essentials. Many textbooks just assume that the reader knows all the symbols and what is behind them, when in fact many people lacked the formalism and math behind these symbols. So , well done. Thank you!
Concise yet simultaneously detailed and a downright engaging way of teaching physics. We need more of this!
Keep going! These videos are great! Get that Cambridge physics knowledge and teaching skill shared whilst it’s fresh. I think lots of people will find this current series useful
"a vector field is a field of vectors"
Yes the floor is made out of floor
Hmm this engine is made out of engine
Thats what happen when your comment only comments the video
Well no there isn’t much to it you can assign vectors with a magnitude(it’s length) and direction that’s just it
Duh!
Can you please explain all the four maxwell'equatuions
The four equations are by Heaviside and Gibbs. Maxwell had 20 original equations.
@@PBGetson thank you
@@PBGetson (...plus the one cited in the video is Gauss's Law of magnetic flux.)
Paul Getson wOoooOOw u so smart look at u go
That's easy. The one he mentioned is del dot B is 0, that's that there are no magnetic monopoles. Another one is del dot E is charge density divided by epsilon, which is the permittivity of free space, that says that the divergence of electric field equals the charge density. The next one is del cross E is -dB/dt, that is, the CURL of the electric field, which measures how much electric field circulates around in a circle, is equal to the (negative of, but it doesn't matter, if you defined north and south poles to be the other way around, or electric charge to be the other way around) time derivative of the magnetic flux at that point, that is, how much magnetic field changes over time. This is that whole deal where you can generate electricity with a moving magnet. And the last one is del cross B is I (current density) divided by mu + dE/dt divided by both mu and epsilon. mu is the permeability of free space, a measure of how easily it is magnetized, while permittivity is you could say, how good something makes as a capacitor. Magnetic materials artificially raise permeability, for instance iron, while insulators raise permittivity by a factor, and that is what their dielectric constant is, and raise the capacitance of a capacitor with that insulator as its dielectric. When you put these 4 equations together, you can get the wave equation in 3 dimensions, with a speed of the reciprocal of epsilon times mu, which is of course the speed of light.
There's a common t-shirt you'll see in physics circles, it says "and god said" and then it lists Maxwell's equations, and then "and there was light". And now you get the joke, if it was ever a mystery to you. I got rid of mine since religious or new age nitwits would come up to me and think I was one of them and it's really not a very funny joke anyway.
crazy how it's been around 4 years since the first time i watched this video back in honors physics in my junior year of high school. i had no idea what i wanted to do in college, but now going into my junior year of a mechanical engineering degree with a robotics minor, i can confidently say that i picked the right field AND this video DEFINITELY influenced my passion for physics and the quantum realm. i just started reading vol.2 of feynman's lectures and i hope to get through quantum stuff vol.3 by the end of the year. so, thank you, parth!
Maxwell ,a Scot,was Einstein’s favourite friend though they never met , in fact in Scotland they call him(Maxwell) Scotland’s Einstein. Einstein had a picture of him hanging in his Princeton study.
I love how without physics, we probably wouldn't be here at all. I also love that you have explained Maxwell's Laws so that I could understand them in less than 30 minutes. I took a class that covered it and took a week to get the same content. Well done!
You do a brilliant job in explaining really important abd fundamental things. For the first time this equation makes sense to me. Thanks!
This is glorious! A couple of weeks ago my gf and I watched the episode of the Big Bang Theory you were referring to, and I told her why that expedition was hugely important. I'm not a physicist (my first degree is in engineering) but I told her about the equation and the magnetic monopole. She found it as fascinating as I did when I discovered this fact a few years ago. What an excellent job you did explaining this beautiful equation, Parth. Thank you so much! Keep up the great work. Andrea.
I am taking this course for the third time in different university in different country and it's my first time to understand it that way
You are a lifesaver
I was struggling with this topic for weeks even after watching many videos. This was the only video that made sense to me. Thank you so much!
Respect and love for you man .... Never understood this equation before
Am a medic student but I really enjoy this....lots of love from India😍
Sorry,in which college u now . M also medico ☺️
Brilliant. A cogent and lucid explanation. Thank you, Parth.
Was getting D's for physics in the last year of school. But I loved it, because unlike other science classes I had taken I would walk out of the class, and immediately observe something I studied that interested me, like the lake my school was next to, and it's waves. The lights looking dimmer the more I walked away from them. It explained to me why things were happening around me the way they were. That's why I love physics. Not because I understand it, but because it teaches me about my world.
thank u parth . Earlier I had a lot of difficulty with physics but ur videos have forced me to think that its because of my already set mindset where i think i cant understand any of it . But ur videos helped me change my view point about it . so great job and keep it up . It motivates a lot of people like me who are afraid of physics
I’m an electrical engineer and I approve this message
How about we approximate sin(x)=x
@@erwinschrodinger9693 for x to very small , sin(x) comes out to be nearly x it can be proved by using the knowledge of limits that u can find out i.e. limit when x approaches 0 then sin(x)/x = x..that's it
@@aryaanarya8825 Or just Taylor series
Aryaan Arya woosh
Erwin Schrödinger I hope you know that’s only an example of simple harmonic motion which is defined as small angle oscillation and that simplification is made a joke out of. In reality, using an approximation is much more rare that you think and some level of rigor is upheld, approximations are only used to find analytic solutions when it’s difficult to do otherwise.
I love Physics cuz it's so absolute, it's like a universe's guidebook
every thing is relative....
Quantum physics?
I hate physics😭😭🙂
@@Kat-rj7wx u hate the frustration of not understanding,once u grasp a concept u will be amazed by the sheer elegance of a system..
@@supersomething3979 ok
Great introduction to Maxwell’s Equations. In my mind you really described divergence well. Please try to cover all the equations and explain why there are differential and integral versions of the equations?
That was good, I"ll be listening to you a lot. When they start using letters in math I was done and I loved math. I had to wait 63 years to hear something that made sense. Good job again.
The best thing about physics for me is when my complete lack of understanding confusion and inability to comprehend are negated by someone with the intelligence to explain something so complicated in such a way that even I can understand it. So the best thing about physics is physicists like yourself who take the time to try to educate those who would ordinarily spend their lives in the dark. Thank you
Please explain the other maxwell equation. I love how you explain the equation!! Thank you
Totally agree. I would love to see another Maxwell equation video.
I love how physics makes me feel that I fit in and helps me accept my quirkiness
That was a well done simple explanation Parth G. I give it 'a scientists A'.
I enjoy your videos alot. Being a physics student.. it motivates me more... Our teachers never teach us this way... That's why sometimes I find physics boring...
Thank you again for making the subject so interesting
I really can't believe that I literally unconsciously pressed the like at the end of the video, I LOVE your enthusiasm about physics.
I'm an engineering student (3rd year now) and I love maths and physics a lot (even though college takes making something fun boring to whole different level)
I am 64 years old and for some odd reason I have a ‘bucket list’ desire to understand Maxwell’s equations - odd and possibly rather sad I know. Anyway, after watching and reading many things on the subject I came upon your explanation, and all I can say is thank you very much I am now a step closer, the best explanation thus far in my view. Very nicely done and much appreciated 😀👍
Just Maxwell’s Equations? I’m 74 years old and I also want to understand Quantum Field Theory.
@@cahammernolastname2815 Just Maxwells‘s Eqations and Quantum Field Theory? I am 101 years old and I also want to win a Nobel Prize in physics
@@8monocerus8 What?! Wait, wait a minute there. Just to win a Nobel Prize in physics? I'm 121 and I've done it all.
Physics is simple, when explained by one who really loves it😍😍😍
Maxwell just used the letters A through H for vectors in his Treatise on Electricity and Magnetism and some of them stuck and some of them didn’t. A is still used for vector potential, B for magnetic field (or magnetic induction or flux density, depending who you ask), H for magnetic intensity, etc.
you are realy good!!! when I was in the phlsic class we didn't understand nothing and the teacher ridiculed us for not inderstanding
Your students are so lucky having you as a teacher.
I have almost seen every video on TH-cam regarding divergence but didn't understood any of them but you finally made me understand this concept. A big Tank You and please never stop making physics videos
I love the bath tub analogy for divergence! 😂 I love seeing advanced mathematics applied to physics...not merely learning the math theories! Physics applications get you thinking about the math you just studied! 😊
One miss if I may call it that is that the water flow is also a div=0 because water inside the tap is flowing like inside the magnet, sorry for nitpicking, but the analogy makes sense!
There is no mistake in the explanation. The water leaving through the plug or sink does not come back to the tap or source through some external pipe (at least not mentioned in the video). The tap and plug situation is not like a magnet, it's like a pair of positive and negative electric charges, like electric field flowing from a positive to a negative charge. There is net divergence!
Can you relate Maxwell’s equations and E&M to Naiver-Stoke’s and Fluid Dynamics?
So well explained. Thank you!
Wow, a great explanation for those of us with basic education. I actually got it this time! My favorite "thing" about physics is the celestial mechanics equations which predict, with extreme accuracy, the positions of celestial bodies. It's what enables us to sit at home and see pictures taken at Mars, Jupiter, even Pluto & beyond. Amazeballs!
When I was in physics class years ago, my instructor covered an equation that explained when a car is driving toward you honking its horn, how to tell how fast it was going. Could you cover that one? Thank you in advance, AWESOME VID BTW!
you are talking about doppler
Facinating that we know so much about the house, while knowing so little about the geology its built on.
the upside down triangle has a name, its the 'nabla operator' also known as 'del' which is closely related to the derivative and gives you the divergence or gradient
Laplacian operator
It’s the gradient operatir
I think ...
Without dot-product it is gradient.
With dot-product it is divergence
I studied math in 1999. I only have vague memory.
@@crisvamc83 at least for physicists I know they use the nabla with the cross product too, it will give you the rotation of a vector field
@@TheYoshi1990 yes ... Curl
I'm sorry, I've underestimated this video by looking at it's span of time.
You've restored my curiosity.
Thankyou very much Parth!
You managed to make one of Maxwell's equations fun while clearly explaining its meaning! Congratulations!
Mate please upload the rest of the series 😭 including integrals
Integrals are just area under a curve! I wouldn't expect him to make a video of it. Lots of videos elsewhere online!
The equations of integrals are just the opposite of the derivative. So, learn how to do derivatives, and then look up how to do integrals and u should be good!
@@AkamiChannel I think he meant to say the integral form of Maxwell's Equations...
"An alleged scientific discovery has no merit unless it can be explained to a barmaid." Lord Rutherford.
I e met some barmaids who were astrophysicists.
Kurt Vonnegut said something similar [ and I paraphrase ]: if you cannot explain what you are expounding to a seven-year-old, then you are probably a charlatan.
Isn't that the one he told his wife?
@@crustyoldfart Feynman said something of that nature too
Hi miss, did you know that your hair has a non-zero divergence? Ooh, and the doughnut you have served has a zero divergence.
Hey, great video! So I was just wondering what if the circle region you choose for divergence as the whole vector field, for example, the bathtub scenario you gave, what would be the divergence then? positive, negative or 0?
If source velocity and sink velocity match, then div is zero.
2:32 the explanation about vector field is perfectly clear.
I think this guy is great. I've always had a love of physics and I like it's purity and honesty.
H is Magnetic Field and B is Magnetic Flux Density or Magnetic Induction. There is difference between the two.
I'm glad someone eventually said it.
vjankov, thanks I haven't thought about these things in decades, but I couldn't remember B being Magnetic Field
The best! I'm dumb and I understood that crystal clear!
I only thought it but you ... you SAID it! So I liked it🤓
I don’t think you are that dumb @Solayman Maso
u think I'll share this video with my friends?? HELL nuh man this treasure is just for me
I tried watching this video about 2 years ago and couldn't get a thing. Today I found it and rewatched and you made it so simple, I dont know how I didn't get it at first
Finally I understand this after jumping from video to video, most assume we know what they are saying, and brush off in a sentence or 2 everything you explained in this video. Here you break it down in detail. I will dig into your other videos now.
Thank you
Favorite thing about physics is learning about the FUNdamental nature of the Universe. I specifically enjoy Astronomy and Astrophysics
what ever
Check out plasma cosmology, just for kicks.
Where were you when I was doing my degree? 😀
Sleeping in the back of the class.
@@user-lu6yg3vk9z 😂
Maxwells equations are really Heavisides equations.
I'm on a roll, watching all the videos on youtube about Maxwell's equations. I've found 3 so far (including this one) that are helpful to me. YES, please, go on to the second equation!
I majored in physics/astrophysics as an undergrad, EE for grad school. Love seeing fellow minded individuals out here on TH-cam. Just subscribed.
My favorite thing in physics is the silicone oil droplets experiments that demonstrate that the pilot wave theory accounts very well for the double-slit experiment results. The double-slit experiment is also awesome because it has caused so many brilliant physicists to butcher logic in so many delightful ways. Pardon me, but I must go feed my dead cat.
Further experiments have shown that this really isn't the case. When done under the right conditions, eliminating all possible effects (like air currents), the drops don't produce the interference patterns in the double-slit experiment. Quantum weirdness is alive and well. And that's good, because it shows that reality is far stranger and more complicated than we ever thought.
Isn’t this similar to flux or am i just confused?
It is. Mathematically, the flux through a closed surface is equal to the divergence of the field in the volume contained within that closed surface.
U r a talented guy man ! Teach for JEE ADVANCED ;)
Idiot don't waste the talents of a man for simple exams which determine the intelligence of a person by marks but not by his thinking or his imagination.
Superb explanation! This is the first time I got a grip on the Maxwells equations!!!!
wow! man i have subscribed the channel after seeing this video just because of the hard work that's put into it everyone is explaining all the theorys in probably a 11 minute video but you are the only person who has put the work into this and explained it sooooooo easy...
Grand Salute
My best thing about physics is the more I know the less I know and there is a scope to know more.🤔
Aditya Nehra that’s life. When we die even the so called most intelligent fines out that they know little
@@allofasudden6997 This is what distinguishes smart people from those that think they are smart .
@@Cyberplayer5 Very nice that's why Einstein died working. He never took a day of that's what geniuses are.
O, so finally Understood this equation after 2 years since I read that.
Can anyone explain what does "let there be light" has to do with this equation???
Light is an electromagnetic wave, Maxwell’s equations describe both magnetic and electric fields thus describe light. Maxwell’s most famous accomplishment was proving that light is an electromagnetic wave.
He didn't say .. I think that what he enttended to say is that from a void (0) we can create a vector field that mays seem as a "thing" but in sum is null.
Thank you soo much for such understandable explanations and examples! I've watched about 4-5 videos on the same topic and understood what is going on only after watching your video
Absolutely marvelous. Really loved it, I'd love your charismatic energy and enthusiasm. Please do more videos on the other equations.
I like that physics starts with 'ph' instead of 'f'.
well, in spanish it starts with f
I like that physics ends with "ics" instead of "ix"
Fizix
fog fog uckiney
I don't
I love God given CO2 which is used to build all life on earth!
CO2 isn't used to build all life on Earth. CO2 is a gas. Are you a gas? Because me, the solvent in my cells is water, there are not a lot of gas based life forms.
I got news for you... we are all carbon life forms and the carbon that makes us up is derived from CO2! Everything comes from plants/sun!
@@rjaquaponics9266 CO2 is great in small quantities. 250 parts per million for example. Without at least 200 parts per million we would have an ice age. With zero green house gasses in the atmosphere the average temperature would be -18C and the Earth would be a snowball.
CO2 is really bad in large quantities. Disagree? Then take a holiday on Venus!
In recent decades the concentration has jumped over 100 parts per million and it's now over 400 parts per million. From Ice Core data it has not been that high at any time in the last 800,000 years at least.
Also, at no other time in the last 800,000 years has it risen as fast as it has in the last couple of decades.
That's bad! That's very bad! It's not Venus bad, but it is still very bad! Think about it, if 200 parts per million are enough to stop the Earth from becoming a snowball is it really unthinkable that another 200 is responsible for catastrophic climate change?
The Climate Scientists are nearly unanimous on this. I subscribe to Nature magazine, I recommend everyone reads the issue dated 19th Sept 2019. They don't mince their words! "Time to Act", "The Hard Truths about Climate Change", "Do or Die"!
Nature is perhaps the most respected pier reviewed journal in the world. It is a very sober journal. They do not use language like that! So why is it there? Because no country in the world is yet doing enough! Over a quarter of a century since Rio, the consensus was already formed back then, and the world has barely moved. Every year we leave it the cost of fixing the problem grows. We are in the middle of an massive extinction event. Millions of people are being displaced every year, and whilst it is impossible to know how much of that is climate the numbers are going up whilst the amount of conflict is declining and the *know* some of them are moving because of the climate. The world is already spending 2x10^12 USD per year on mitigating the effects according to some analysis. And yet in the current world the lies of vested interests like Putin and the Koch family seem to be heard more and more instead of the quite pleas by Climate Scientists to look at the evidence. Trump even pulled the US out of the Paris accords and no one in the US seems to care!
So finally people with the facts on their side have started to shout too! Let's hope that works! We are in deep shit otherwise!
You seriously believe CO2 controls the temperature on earth? You smoked too much weed in college! The sun absolutely controls the temperature on earth as does the obit and tilt. According to your theory, the northern hemisphere temperature should not change because CO2 has not changed. If CO2 controls the temperature why do we have seasons? Duh! Do you know water is wet? You are fully indoctrinated in the Climate Cult! If Earth was in Venus's distance from the sun and obit... well hell yell CO2 would be sky high because the earth would be baking at 400 degrees! Using Venus as your comparison is insane! It's apples and oranges! I appreciate your long post, but sorry to say you are not dealing with reality. Under 300 ppm CO2, plants stop growing and at 200ppm we would all be dead never mind your theory of an ice age. The sun's energy heats the earth and the normal sun cycles controls the peaks and valleys in temperature. The truth is... CO2 trails temperature not the other way around. This is a fact! A rise in CO2 does not increase temperature. A rise in temperature causes more plant growth and death which in turn rises CO2 via natural decomposition. This is what the records show, when the temp rises, plants grow and CO2 increases... not the other way around!
@@rjaquaponics9266 Of course the Sun controls the climate. But it's just as nonsensical to say that CO2 has no effect as it is to say that the Sun has no effect. It is a complex system and there are a lot of factors.
The most important point is that global average temperatures have changed too much and too quickly in recent decades for it to be due to the Sun. So even if nobody had check to see if solar irradiance could be correlated with recent climate change we would already know that it couldn't be the cause, but they have, and it isn't.
Not that it would matter if it was! Suppose the Sun *was* the cause. We can't change the Sun, but we *can* stop putting greenhouse gasses into the atmosphere and we could work on ways to reduce them. We know both affect the climate, and we know we are in trouble, and reducing CO2 is the best response. Maybe we can put up space umbrellas, I don't know about you, but I'd rather try something nice and easily reversible first, in the incredibly unlikely event that it turns out putting more CO2 into the atmosphere is actually a good thing we can always burn extra coal to catch up.
I never smoke anything. And I have a degree in Physics to prove that I was not high at University.
Nobody indoctrinated me at university. They don't tell you what to think, that makes bad scientists.
"Under 300 ppm CO2, plants stop growing and at 200ppm we would all be dead never mind your theory of an ice age." - This disagrees with Ice Core data. CO2 has been less than 200ppm within the past 25,000 years! Plants did not stop growing and humans survived. There have only been a few short periods in the past 800,000 years when the concentration went above 300ppm. The last time it was under 300 ppm was 1910. And the time before that was at least 300,000 years ago. Did plants stop growing between 300K years ago and 1911?
I'm not suggesting we reduce CO2 to 200ppm, that would probably trigger ice ages. Right now we need to stop it going up. If we can get it under control then 250-300ppm is probably a good target range.
"If Earth was in Venus's distance from the sun and obit... well hell yell CO2 would be sky high because the earth would be baking at 400 degrees!" - You seem to be suggesting that greenhouse gasses have zero effect on the surface temperature of Venus. Is that what you are saying? If so how do you explain the fact that Venus is much hotter than Mercury despite the fact that Venus is about 0.72 AU from the Sun and Mercury is 0.47 AU from the Sun.
Venus is 1.53 times the distance, and energy per unit area drops off by the square of the distance, so it gets less than half the energy per unit area that Mercury does. But it's much hotter. Still think the atmosphere plays no part at all?
There are other examples. Our Moon is the same distance from the Sun we are. It's average surface temperature is about the same -18C that has been calculated as the average the Earth would have with zero greenhouse gasses.
"The truth is... CO2 trails temperature not the other way around. This is a fact!" - No, that is not a fact. It *is* true *sometimes*. That's because the system is complicated. There are a large number of forcing factors. If the energy per square meter from the Sun increases (yes, I absolutely agree this is a factor) then the average temperature goes up. This can, for example, melt permafrost, releasing CH4 and CO2 and driving the global average up more, melting more and releasing more. If you cherry pick the data so you only quote those periods when this sort of thing is happening then it looks like CO2 is a cause and not an effect. The *fact* is that it is both.
Can you stop this irritating background music. It’s a real nuisance
Er - are you sure it's not from next door?
Or maybe some of the other people in your brain are singing
Wish we had videos like these when we struggled to understand! Outstanding!
I think this is the only channel that made me subscribe it just by watching one video
usually I don't subscribe before a week
but this one landed in an exception
you have a really amazing course of thought
really good
but at the same time it burns my heart that this piece of indian talent isn't in its home ground