i don’t even take physics but came across the concept of polarization and was intrigued by it and decided to search some videos up. u did a great job at explaining it even for a non physics student. great job!!
Not until u know about the Poincare sphere(corresponds to the Bloch sphere in quantum information science! ) and the rigorous definition of polarization😏
70 percent of people watching this video didn’t come here because of one quiz question in a class, they came here out of genuine curiosity about how the world works. These are the people you should be employing.
First time I experienced polarised glasses was actually on the lake fishing with my dad. The sun was out, and the glare off the lake was brutal. I was wondering how my dad was trolling the boat around the stumps in the a cove on the lake that I couldn’t hardly see. At one point he gave me his shades and bam, it was a huge difference. I didn’t get to keep them on long as he wanted them back so he could continue avoiding the tree stumps. Well, I got my first set of polarised shades at the tackle shop dad bought me and those new shades have been sitting at the bottom of that lake for 30 years now as when I bent over the boat to get a fish netted, they fell off.
To have circularly polarized light you first pass through a linear polarizer which consists of a grid of thin metallic wires which possess electrons in a particular axis. These electrons can be excited by incident light and are gonna either absorb or scatter the incident light (it depends on the polarizer), but it won’t transmit the light oriented in the plane of the metallic wires. So the polarizers are made in a way that only one orientation of a certain light wave isn't absorbed. The light transmitted light is then polarized linearly, then passes through a quarter-wave plate which is a birefregent crystal (usually ZnSn) that induces an offset delay of different incident polarizations resulting in circularly polarized light.
And important issue is reflact passively the sun emmision as our communication system so less emission and require less power but limitless power when we mirror amplification
So if we mirror sunlight and amplified by high concentration of multiple large mirror could destroy missile too if enough advance polarized mirrors are in unison
I can't thank you enough for making the concepts clear on polarization. I used CD spectrometry on proteinswithout completely understanding was circular polarization was and it was so disturbing. But now that I have a visual understanding my own experiments would make much more sense to me. This was awesome ! thanks a ton !
This is awesome... I've been working with retarder material and this helps me understand the concept of polarisation even more. I on behalf of viewers from years 2024, Thank you very much.
Khan academy makes the concepts extremely simple but a major part of the syllabus i.e. the numericals are missing......some children totally depend on you people for their excellence Its a humble request to kindly make some more videos for atleast difficult chapters of the syllabus!🙏🙏🙏
Thank you for all the examples and explanations. It was really helpful that you always questioned "why are we doing this?" and answered it right away, phenomenal.
That drawing of the perpendicular magnetic fields was amazing.
I came to the comments to see if anyone else felt that way. I was amazed
ikr, it was so satisfying for some reason
Yh why aren't more people talking about it
I even tried it myself because it felt so easy and satisfying
@@suiramarius17 what soft ware is it
4:52"...sun is shining and it is a beauuuutifullll day")))) here, at my computer I feel your enthusiasm
i don’t even take physics but came across the concept of polarization and was intrigued by it and decided to search some videos up. u did a great job at explaining it even for a non physics student. great job!!
I've never experienced a better explanation of polarization. Thanks a ton! This is gold :P Also, I loved the movie theater example.
Just tried to understand this for about an hour, but you made this perfectly clear in less than 4 minutes. Thanks!
Man, been reading a textbook for a week and couldn't grasp this... Your drawings REALLY came in handy, THANK YOU
As an IB student struggling in HL physics, this helps so much. Definitely going to do Kahn with IB to help me through.
Thank you for explaining. I'm a masters student and I feel like I understand polarization more than I ever have before lol
Not until u know about the Poincare sphere(corresponds to the Bloch sphere in quantum information science! ) and the rigorous definition of polarization😏
@@joewang4962 bro, I just need to pass the class. LMAO
2:20 "This thing's hot!" I laughed way too hard.
Loved it it feels so good to just know stuff without te pressure of having to mug it up and write it for tests....this feels the right way of studying
70 percent of people watching this video didn’t come here because of one quiz question in a class, they came here out of genuine curiosity about how the world works. These are the people you should be employing.
I came here cause I'm reading Contact
After doing a lot of survey , i finally got something actually qualitative and worthy . Thanks 👍👍
Didn't realize 3D glasses worked like that
U explained really v well, u r definitely a very good teacher.
Beautiful explanation ✨
Wow, I've been trying to find a way of explaining Polarisation regarding fibre optic transmission and multiplexing and this has helped massively.
First time I experienced polarised glasses was actually on the lake fishing with my dad. The sun was out, and the glare off the lake was brutal. I was wondering how my dad was trolling the boat around the stumps in the a cove on the lake that I couldn’t hardly see. At one point he gave me his shades and bam, it was a huge difference. I didn’t get to keep them on long as he wanted them back so he could continue avoiding the tree stumps.
Well, I got my first set of polarised shades at the tackle shop dad bought me and those new shades have been sitting at the bottom of that lake for 30 years now as when I bent over the boat to get a fish netted, they fell off.
Aw, great story!!
I came here for a visual understanding of an RCP wave
Really satisfying
Thanks
I love Khan academy it clarify my every doubt 😍
Brilliant! At last someone has got it through to my brain....... struggled with this for AGES. Thank you very much.
best ever.....i'll share with my all classmates who are going through the same problem
This could be his most polarizing video
that was very educative, thank you. keep up the good work
❤
Excellent presentation. Easy to understand, my compliments.
BEST EXPLANATION VIDEO, so simple and clear.
This is more exciting than I thought. Great explanation!
I am watching you from iraq this was Amazing! Thank you so much ❤
Thank you so much finally I understand what is polarization:)
GREAT JOB KHAN ACADEMY !
Amazing explanation. Thank you 🌹
dude physics is everywhere !!
Awesome ! Thanks Khan academy for making such brilliant videos.
Thanks I totally understood polarization now, it was so messy in my brain :)
What is the molecular structure of a circular polarizing filter? What are the physics of how it works?
To have circularly polarized light you first pass through a linear polarizer which consists of a grid of thin metallic wires which possess electrons in a particular axis. These electrons can be excited by incident light and are gonna either absorb or scatter the incident light (it depends on the polarizer), but it won’t transmit the light oriented in the plane of the metallic wires. So the polarizers are made in a way that only one orientation of a certain light wave isn't absorbed. The light transmitted light is then polarized linearly, then passes through a quarter-wave plate which is a birefregent crystal (usually ZnSn) that induces an offset delay of different incident polarizations resulting in circularly polarized light.
Formation of EMF antennae will be condition light according to electrodynamics driver control precise type of light come on surrounding
And important issue is reflact passively the sun emmision as our communication system so less emission and require less power but limitless power when we mirror amplification
So if we mirror sunlight and amplified by high concentration of multiple large mirror could destroy missile too if enough advance polarized mirrors are in unison
Fantastic explanation. Both, colloquially and with your drawing skills. Thank you!
lovely... thanks for such an amazing explanation!
No fantasy animation, just simply and easy to understand ,thanks
Most clear thanks for the glasses
Awesome explanation of light polarization!
LONG LIVE KHAN ACADEMY!!!
OMG polarization simplified, thank you so much, 2021 anyone?
That was beautiful.
The cinema example was mind blowing thanks!
I can't thank you enough for making the concepts clear on polarization. I used CD spectrometry on proteinswithout completely understanding was circular polarization was and it was so disturbing. But now that I have a visual understanding my own experiments would make much more sense to me. This was awesome ! thanks a ton !
Hellow
Easiest explanation to understand out of all the many textbooks I have read. Thanks!
Thank you for posting !
I could understand something about polarization in this video
Thank for this bid eo
This guy can explain in twenty minutes what takes my prof two hours 😂
man you saved my life. thank you bro
simple but great explanation of circular polarization. that what i was looking for
This is awesome... I've been working with retarder material and this helps me understand the concept of polarisation even more. I on behalf of viewers from years 2024, Thank you very much.
It was a so good and understandable session❤❤
Your videos are the 'best thing' happened on youtube!
It is the best explanation I ve ever heard and seen. Both informative and interesting
wow thanks dude ! thats what I needed to see
Can you also explain with equations? Like matrix calculations. Thanks a lot! :) Your video is awesome!
Phase,Twilight,eyes of wisdow,nine ropes,polarized light,crow and declaration between front and back hollow PURPLE
great video... really helped me ....thanksss
Great explaination
Amazing video on polarization, thank you so much !
That was superb, thank you very much for this movie and excellent explanation with simple graphics but hugely informative.
Thank you for such a lucid explanation.
That was an excellent explanation
A Nice explanation. Thank you..
Great explanation! Very clear!
this is awesome!
Best Explanation
thank you sir the movie theatre example was soo good!!! I feel so glad that I know it now. thank you sir, I loved the explanation..
Khan academy makes the concepts extremely simple but a major part of the syllabus i.e. the numericals are missing......some children totally depend on you people for their excellence
Its a humble request to kindly make some more videos for atleast difficult chapters of the syllabus!🙏🙏🙏
Extremely informative. Thank u sir.
you are amazing 🤩🤩
first time i came to know what is polarization. great video
Wow....Naild it !!
Amazing. Lovely video!
Y'all really be saving me
Thanks, helped me a lot. Cleared a doubt
perfect video
beautiful explanation...thanks for sharing knowledge
such a beautiful explanation.
thank you so much for your help!
This was fantastic!
Best explanation of circular polarisation
Mayank Khandelwal beat....huh
Pulkit Sinha best*
Thank you for all the examples and explanations. It was really helpful that you always questioned "why are we doing this?" and answered it right away, phenomenal.
Literally a saviour!
Thank you for your clear and precise explanations
perfect explanations !
very well explaned
I am so lost currently in my laser and photonics class and this definitely helped a lot
Thanks for the video. Thank you sir.
Thank you for posting this - you are a most excellent teacher!!!
who ever came up with the 3d glasses idea was a god damn genius
amazing video! very informative
great explanation.. even i understood ;D
wow...that's amazing, thanks
great video, it helped!!
DUDE YOU ARE AWESOME
Great video!
Thank you. You are the best
Very good; now I want to know how this is accomplished.
When I was little I always noticed how if I tilted my head far enough the image in the 3D movie got all funky. Now I know why!
Excellent animation.
Thank you man! 😊