I really don't understand why this channel has only 44k subscribers. The number should be a lot more. At leat 10 to 15 times more. Really good class. Thank you sir.
Just think how many people r there in the world? And how many of them r literate? And how many of those literate ones studied science? And how many of those science students belong to physics? And how many of those physics students dropped out? And how many of them r left? And out of them how many of them ve access to the internet? And how many of those with internet r really interested in physics? And how many of those really search UA-cam for lessons? And how many of them really do know about his videos? .............so the end result must be very small. Hence, only 44k subscribers.
I wish you did a lecture like this for Quantum Field Theory, I bet it would be amazing!!!! Thank you for your lectures, they deserve way more attention than they get.
Love your videos so much. They are helping me a ton to study for my physics exams. It truly means a lot that you would go out of your way to help students like me out by posting this content.
Thanks for the comment. Hopefully these videos have helped you see the light. Get it, light. Like optics. Ah, physics humor, can't get enough of it. Cheers, Dr. A
Professor Anderson, you are awesome! Can you help me understand how you added the E fields… At your video time stamp 2:33, the distance between E waves 1 and 2 were arbitrarily drawn. So, my question is, to actually add waves are they masked over each other? Thanks!
Suppose you have two otherwise identical laser beams intersecting at a small prism with one beam 180 degrees out of phase producing total destructive interference. The beams intersect at the prism at a slight angle like an elongated x. The index of refraction is wavelength dependent but if the waves are totally cancelled in the prism, would the beams exit the prism at same angle as if the beams constructively interfered? I assume there are no “waves” and thus no detectable wavelength per se while beams are in the glass if there is total destructive interference at that point in space.
I very much appreciate the explanations; however, like most physics professors, he doesn't go through an actual sample equation. It would have been nice if he had done a couple sample equations of different distances and wavelengths of light, so we could really see the nuts and bolts of the math being done. Instead, he gives the formula, and leaves it to the students to employ it. However, as the rest of us viewers aren't there in his class and aren't given homework problems, we can't do that. It would really help the rest of us viewers at home to see at least one sample problem being done with actual figures. I think around 36:00, he got mixed up in his explanation and equations explaining the speed of light in a vacuum versus speed of light through a material. Also, he neglected to mention in his equation for speed of light in a vacuum that the index of refraction in a vacuum is considered to be 1, and left that off when he did the calculation of speed of light in a vacuum with his frequency (naught) times wavelength (naught), equaling the speed of light in a vacuum.
Professor, thank you, your lectures are great. However, you may significantly shorten the time of the video by speeding up the erasing and long writing parts. Those times take more than the half of a video. I always do it myself (skipping those parts).
I can understand the lightwaves used in highprogramming with computers, but what about lowprogramming is that also the acquintance. I learned about zero's and one's or nor's and add's by copperwires. Remarks I do like. Kind regards.
Another great video! Curious So if two light waves are 180 out of phase then...there is cancellation....meaning no light, dark. The photons and magnetic fields dissapear. They annihilate each other....is there energy produced
youtube commentor, Great question. Rectilinear propagation refers to the direction of momentum of the wave. This is perpendicular to E & B, given by the right hand rule. Even though E & B oscillate, the momentum vector points straight. Check out my "EM Waves" video: ua-cam.com/video/bwreHReBH2A/v-deo.html You might also like my new website: www.universityphysics.education Cheers, Dr. A
I have a little bit confusing with operators div. and grad. Can you make a video ? With that operators and formulas. For instance maxwells equations. Pleaseeeeee ;( ......
Hey Jude, We are working on the more advanced topics, but might take us a while. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
Ronen, Where? I must have missed it! Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
Professor, i am full stack developer, with computer science degree. Your videos inspire me to do a second degree in electricity. Wish you had more videos. Your channel is precious. I will check your website. Thank you.
navodya dewmini, Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
I really don't understand why this channel has only 44k subscribers. The number should be a lot more. At leat 10 to 15 times more. Really good class. Thank you sir.
Just think how many people r there in the world? And how many of them r literate? And how many of those literate ones studied science? And how many of those science students belong to physics? And how many of those physics students dropped out? And how many of them r left? And out of them how many of them ve access to the internet? And how many of those with internet r really interested in physics? And how many of those really search UA-cam for lessons? And how many of them really do know about his videos? .............so the end result must be very small. Hence, only 44k subscribers.
More impressive than his knowledge at teaching physics, is the determination with which he cleans his board
I wish you did a lecture like this for Quantum Field Theory, I bet it would be amazing!!!!
Thank you for your lectures, they deserve way more attention than they get.
He has....
Matt's got some mad wave-drawing skills those things are damn neat.
Love your videos so much. They are helping me a ton to study for my physics exams. It truly means a lot that you would go out of your way to help students like me out by posting this content.
Thanks, glad you're enjoying these. It's my pleasure to spread some physics knowledge.
Cheers,
Dr. A
I truly appreciate this video! Thank you sir.
Excellent. Thank you. Can't wait for more material from you.
Thank you very much. You are really good teacher.I am from Egypt and watch your video s
What a superstar! Most enlightening 57min of physics of my life!
The best physics Prof. I’ve seen.
Hands down!
I was suffering in my Optics section until I found your videos!
Thanks for the comment. Hopefully these videos have helped you see the light.
Get it, light. Like optics.
Ah, physics humor, can't get enough of it.
Cheers,
Dr. A
@@yoprofmatt Watch "Quantum Mechanics" on...
ua-cam.com/video/UymZR_N4GIM/v-deo.html
Thanks Professor.
Loves from Bangladesh.
How can a human being have it all. He’s smart and a good teacher, has a nice personality AND HANDSOME?
The power of photoshop!
Cheers,
Dr. A
Professor Anderson, you are awesome! Can you help me understand how you added the E fields… At your video time stamp 2:33, the distance between E waves 1 and 2 were arbitrarily drawn. So, my question is, to actually add waves are they masked over each other? Thanks!
Yes, the waves will need to be on top of each other to add up. I drew them separate just to illustrate the notion of superposition.
Cheers,
Dr. A
Suppose you have two otherwise identical laser beams intersecting at a small prism with one beam 180 degrees out of phase producing total destructive interference. The beams intersect at the prism at a slight angle like an elongated x.
The index of refraction is wavelength dependent but if the waves are totally cancelled in the prism, would the beams exit the prism at same angle as if the beams constructively interfered?
I assume there are no “waves” and thus no detectable wavelength per se while beams are in the glass if there is total destructive interference at that point in space.
I very much appreciate the explanations; however, like most physics professors, he doesn't go through an actual sample equation. It would have been nice if he had done a couple sample equations of different distances and wavelengths of light, so we could really see the nuts and bolts of the math being done. Instead, he gives the formula, and leaves it to the students to employ it. However, as the rest of us viewers aren't there in his class and aren't given homework problems, we can't do that. It would really help the rest of us viewers at home to see at least one sample problem being done with actual figures.
I think around 36:00, he got mixed up in his explanation and equations explaining the speed of light in a vacuum versus speed of light through a material. Also, he neglected to mention in his equation for speed of light in a vacuum that the index of refraction in a vacuum is considered to be 1, and left that off when he did the calculation of speed of light in a vacuum with his frequency (naught) times wavelength (naught), equaling the speed of light in a vacuum.
Love from india
bruh, this guy looks like sherlock from the England series LOL. amazing.
Sir, please make video on modern physics comprising of (dual nature of matter ,radiation ,atoms and nuclei)
Cool ❤❤❤
This fantastic truly amazing beautiful explanation. Thanks again professor
Shoaib Nature,
You're very welcome. Glad you're enjoying the videos.
You might also like my new site: www.universityphysics.education
Cheers,
Dr. A
@@yoprofmatt at t f
Nice videos Prof, cool board needs automated wipers though, I can make that for you hhh
Professor, thank you, your lectures are great.
However, you may significantly shorten the time of the video by speeding up the erasing and long writing parts.
Those times take more than the half of a video. I always do it myself (skipping those parts).
No need, its perfect this way. Gives you time to think. No need to hurry all the time. If its bothers you, just skip, or change the speed
Even more time needed if you are aphysics lover
Thank you..
What about the wave nature of brains and brain nature of waves, like the delta, theta, alpha, beta, and gamma brain waves.
I can understand the lightwaves used in highprogramming with computers, but what about lowprogramming is that also the acquintance. I learned about zero's and one's or nor's and add's by copperwires. Remarks I do like. Kind regards.
Shouldn't you speak of tan þ instead of sin þ prof M. Anderson, then I understand it more, but perhaps I am wrong.
Thanks and kind regards
Another great video!
Curious
So if two light waves are 180 out of phase then...there is cancellation....meaning no light, dark. The photons and magnetic fields dissapear. They annihilate each other....is there energy produced
Is that materials for school ?
How is that angle equal to theta??
is he writing backwards
Nope. Secrets here: www.learning.glass
Cheers,
Dr. A
@@yoprofmatt Watch "Quantum Mechanics" on...
ua-cam.com/video/UymZR_N4GIM/v-deo.html
how do you write backwards?
Feeling very super saturated 😅
Sir, what's the prescribed textbook?
if light is a wave...then how rectilinear propagation holds good?
youtube commentor,
Great question. Rectilinear propagation refers to the direction of momentum of the wave. This is perpendicular to E & B, given by the right hand rule. Even though E & B oscillate, the momentum vector points straight.
Check out my "EM Waves" video: ua-cam.com/video/bwreHReBH2A/v-deo.html
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
I have a little bit confusing with operators div. and grad. Can you make a video ? With that operators and formulas. For instance maxwells equations. Pleaseeeeee ;( ......
Hey Jude,
We are working on the more advanced topics, but might take us a while.
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Matt Anderson thanks 😊 👍
Appreciated
41:19 genius
Ronen,
Where? I must have missed it!
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Professor, i am full stack developer, with computer science degree. Your videos inspire me to do a second degree in electricity. Wish you had more videos. Your channel is precious.
I will check your website.
Thank you.
Lecture is really good but the marker sound really disturb me😅
Agreed. Come to my channel for squeak free videos.
Cheers,
Dr. A
super, really
navodya dewmini,
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
wish if you were my lecturer