Polarization of light, linear and circular | Light waves | Physics | Khan Academy
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- เผยแพร่เมื่อ 6 ก.ค. 2014
- This is the underlying physics behind 3D glasses. Created by David SantoPietro.
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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
@@Marius1708 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!
2:20 "This thing's hot!" I laughed way too hard.
Man, been reading a textbook for a week and couldn't grasp this... Your drawings REALLY came in handy, THANK YOU
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
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
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!!
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.
U explained really v well, u r definitely a very good teacher.
After doing a lot of survey , i finally got something actually qualitative and worthy . Thanks 👍👍
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.
As an IB student struggling in HL physics, this helps so much. Definitely going to do Kahn with IB to help me through.
damn i am doing the same for HL Physics lol
Didn't realize 3D glasses worked like that
Easiest explanation to understand out of all the many textbooks I have read. Thanks!
Wow, I've been trying to find a way of explaining Polarisation regarding fibre optic transmission and multiplexing and this has helped massively.
Brilliant! At last someone has got it through to my brain....... struggled with this for AGES. Thank you very much.
this explanation was incredible! thank you so much for taking your time making this video
I came here for a visual understanding of an RCP wave
Really satisfying
Thanks
this was an excellent explanation thank you so much!! feeling happy i understand what polarisation is now!
This is more exciting than I thought. Great explanation!
Fantastic explanation. Both, colloquially and with your drawing skills. Thank you!
That helps a lot! Thank you so much! Your explanation was so clear.
wow thanks dude ! thats what I needed to see
Excellent explanations ! Thanks !
Awesome ! Thanks Khan academy for making such brilliant videos.
thanks! great video. Really helped me understand what is going on in CD experiments
That was superb, thank you very much for this movie and excellent explanation with simple graphics but hugely informative.
I love Khan academy it clarify my every doubt 😍
Literally a saviour!
Thank you for your clear and precise explanations
Thank you for posting this - you are a most excellent teacher!!!
best ever.....i'll share with my all classmates who are going through the same problem
beautiful explanation...thanks for sharing knowledge
BEST EXPLANATION VIDEO, so simple and clear.
This guy can explain in twenty minutes what takes my prof two hours 😂
Excellent presentation. Easy to understand, my compliments.
It is the best explanation I ve ever heard and seen. Both informative and interesting
A Nice explanation. Thank you..
Thanks I totally understood polarization now, it was so messy in my brain :)
Great explanation! Very clear!
such a beautiful explanation.
thank you so much for your help!
great explanation.. even i understood ;D
Wow.. What an awesome explanation! Thank you.
Thanks for the video. Thank you sir.
simple but great explanation of circular polarization. that what i was looking for
Can you also explain with equations? Like matrix calculations. Thanks a lot! :) Your video is awesome!
Extremely informative. Thank u sir.
great presentation, appreciate it
first time i came to know what is polarization. great video
Excellent explanation, thank you very much!
Amazing video on polarization, thank you so much !
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.
that was very educative, thank you. keep up the good work
❤
man you saved my life. thank you bro
Damn good explanation. Thanks.
Thank you for posting !
I am so lost currently in my laser and photonics class and this definitely helped a lot
Thank you so much finally I understand what is polarization:)
such a good presentation thank you so much!!!
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!
Dude, this video is great, thanks!
The cinema example was mind blowing thanks!
wow...that's amazing, thanks
Awesome explanation of light polarization!
lovely... thanks for such an amazing explanation!
Thank you so much , I was so confused until I saw the video
Thank you man! 😊
Amazingly explained! The visual part is absolutely crucial for a better understanding. Just 14 minutes and you did a great job. Thank you :)
No fantasy animation, just simply and easy to understand ,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
Most clear thanks for the glasses
Aha, now I'm starting to understand how the 3d on the 3ds works. Looking at the 3ds screen with my polarized sunglasses and slowly rotating it produced the same "colour/brightness filter" as when doing the double/triple polarized lenses experiment that there are loads of video examples of here on YT. Amazing what one can learn with an accessory, some basic explanations, and a curious/investigative mindset. My day has been made!
EDIT: I feel like im missing something though...
Phase,Twilight,eyes of wisdow,nine ropes,polarized light,crow and declaration between front and back hollow PURPLE
great video... really helped me ....thanksss
That was beautiful.
Amazing explanation. Thank you 🌹
Thanks, helped me a lot. Cleared a doubt
Amazing. Lovely video!
This was fantastic!
who ever came up with the 3d glasses idea was a god damn genius
Thank you! Learning about circulair dichroïsm spectroscopy and this helped understanding it a little bit better!
OMG polarization simplified, thank you so much, 2021 anyone?
dude physics is everywhere !!
Thank you for the very detailed explanation about polarization! I finally understand and can relate this to polarized sunglasses and 3D glasses that we commonly use!
Perfect! thanks!
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..
this was great, thank you
great video, it helped!!
thanks! helps so much!
thank you verey much it helped me ! great
Very good; now I want to know how this is accomplished.
Great video!
I am watching you from iraq this was Amazing! Thank you so much ❤
amazing video! very informative
Thank you for such a lucid explanation.
Keep it up sir please make more videos this is very important and useful for us
perfect explanations !
Nobody has yet explained to me WHY light "chooses" (for lack of a better word) only these 2 planes to be polarized in OUT OF THE UNCOUNTABLY INFINITELY MANY POSSIBLE PLANES THAT EXIST.
When I first learned of light waves, I always assumed that the wave pictured was NOT meant to be taken literally but merely as a geometric metaphor/representation of the amplitude of the pulse of light. In other words, I always assumed that the amplitude of a point source of light is radially symmetric and that the magnitude is a sine or cosine function of time & r, not a function of some arbitrary x,y,z coordinates.
i mean isnt function of time and r represented as a function of motion in and through an xyz coordinate system? i mean yeah theres more to the picture as the space that its travelling through has effect on itself as a function OF a function of the xyz coordinates lol but is that what you meant? you could make a polarazer for that shit too but youd need magnets and standing radio diffractions and shit lol