@xminty77

22:11 my favorite 3b1b moment
thank you Grant for your works it has been monumental to my studies

@Feynman_Fries

Gosh darn it what did I just land on? This is pure gold, absolutely marvelous, tears of joy inducing stuff. Light and optics has never been imagined, animated and explained so well ever before. I'm a senior school physics teacher and I can tell you this video is a thing of beauty.

@suddhasattasaha4793

I could truly appreciate the real beauty of physics after watching this video. It takes a lot of hard work to produce such beautiful, detailed and asthetically clean and smooth animations to depict hard to imagine pictures which we are required to visualize to understand physics and dive into the thorough depths of it. Wonderful.

@Rachel_PureBold

Excellent, thank you, so clear. I have learnt a lot. As an artist studying primary colours I also love your diagrams and your specific choices of colours - very harmonious.

@michaelpipkin9942

Your books are a fun/cool thing to have handy around an expanding young mind or a friend with cosmic questions. Room to explain and visualize. I love it.

@capitão_paçoca

Since temperature is the wiggling of particles, doesn't temperature affect this? Or it's a random wriggle so its effects cancel out?

@experiment8924

Anyone else here from The Action Lab?

@Ebani

Finally made it past half of the video and you started talking about the harmonic oscillator, took me back to my electromagnetism course back at uni

@Underscore_1234

Crystal clear and super interesting for a phenomenon that appeared counter intuitive. As always but specialy on this one, super cool animations

@dav1dsm1th

It's insane that videos of this quality are available for, in effect, no cost to the viewer.  Amazing.  Thanks for taking the time to make and publish them.

@retrorek

This video not only explained a really fascinating topic but pointed me straight to the Feynman lectures which, as a 3rd years Physics undergrad, I had no clue existed. Summer reading acquired.

@neychannel114

As a third year electrical engineer student having passed EMF 1&2 courses I just want to say I am falling for these simulations... And bro wherever you are may the force be with you ... There is no one better in explaining in this world I am now sure... and I came all this way from highschool maths up until linear algebra & field analysis every time searching your golden videos. THANK YOU!!!

@OmarOmar-sk5vu

I am forced to thank you!!
I do love colors and general understanding of science to enjoy and appreciate what's going around me, but after such a detailed, amazing clarification, science feels more enjoyable than what it used to be while I was in Uni.

I really wish you a success in the field and for a greater impact on students/ knowledge seeker life.

Respect!

@mattgibbs4115

This was a cool video. Wish it had a little section about what makes a solid transparent. those layers or boundary layers all being aligned or small enough to allow these the sine waves to pass by them. How that can explain polarization and light filters.  Need a video this detailed about photons next.

@MTEXX

What an amazing deep-dive and clear explanation with immaculate animations.  All in 30 minutes????  Wow.

@calabrais

This channel is amazing for those of us who are still curious and want to learn, but don't want to take a test at the end of the lecture 😅 Honestly I think without the pressure to perform I can learn much better.

@TheD3cline

Light and its properties are critical in establishing a canon of quantum understanding that anyone can understand and reproduce. And from light we have all of cosmology and space, computers, etc. Thanks for all you do.

@mondaypunday

At at 7:26, the way Grant has the additional phase layers propagate outwards is so unnecessary and so wonderful.

@JordanMcCaughey

Just in time for my advanced electromagnetism exam. This is a great video, exactly the visualisations the topic needs! I hadn't grasped how the phase "kick-back" was at every point in the material but your visualisation has totally cleared it up!

@KeithAllpress

This nicely explains the momentum kick as it leaves again which is often asked. 

I think it would be informative to use this as a case study in momentum flow which is a nice way to describe forces and you could show the connection between momentum exchanges between light (Poynting vector) and charged matter.  

I mean you have driving force contribution that injects momentum into the system at the driving frequency, until it is loaded,  the spring force acting as a momentum sink and source, periodically pulling momentum back towards equilibrium. A small damping force extracting momentum, dissipating it, and an inertial term representing the storage and transfer of momentum within the oscillator.