The origin of Electromagnetic waves, and why they behave as they do

What is an electromagnetic wave? How does it appear? And how does it interact with matter? The answer to all these questions in 12 minutes.

0:00 - Introduction
1:31 - Frequencies
2:37 - Thermal radiation
3:53 - Polarisation
6:47 - Interference
7:27 - Scattering
8:47 - Reflection
10:09 - Refraction

This video is narrated by Octave Masson.
And if you liked this video, you can share it on social networks !

Alessandro Roussel,

_________________________________________________
_________________________________________________
To learn more :

[echeverria]

I really hope this channel keeps uploading content, it’s a gift to humanity

[Nischal.shetty]

Please dont stop bringing content like this. It simplifies concepts that take months to understand in colleges and I can even visualize it. This deserves millions of views I hope you reach there soon! All the best

[Tempelier_]

I currently have the (electro)magnetic chapter in physics, so this is actually very helpful!

[proximitygaming]

bro casually explains 10x all of high school physics in 12 minutes with 300% understandability

[Alex-nbon]

without a doubt the most clear, thorough, and engaging science education content on youtube. no stone left unturned, all perfectly parseable. you are a treasure. thanks so much for what you do.

[SerAlbi]

Watching this channel is like having a secret master key to the unknown that you can temporarly use to access the mysteries of the universe. Amazing as always.

[Krzysztof_z_Bagien]

6:01 it is worth noting that some animals can actually see light polarisation, eg. some insects recognise polarised light and use this ability to detect pools of water (its surface reflects light with horizontal polarization more strongly than with vertical polarisation), kinda like they were wearing polarised sunglasses.
Fun fact is that even some humans have very limited ability to see polarisation - look for "Haidinger's brush".

[debugsec]

Thanks for making these. I want to show my support and hopefully make it worth your while to keep writing and producing these types of videos.

Happy holidays! I look forward to your next release.

[harshanand]

Thanks! It was a great video, please keep making these . You covered a great amount of knowledge into this small video.would love to see more of these !

[MultiTipsie]

Wow! I am 50 years of age now and from the age I went to, what was called Middle Technical School or MTS here) I had majors in Chemistry, electrical engineering / technology, physics, mathematics and all. Every major educated their own little part of the whole story and up till now I haven't seen a combined basic explanation like this which should be the basis of all above mentioned majors! Why, because your video literally gives a concrete understanding about the foundation of all that's teached and how all the bits you learn is actually just one basic fact about particles, matter, how this behaves and what follows as a consequence out of this fundamental behavior. In my quest to such an explanation as I wanted to now exactly this, people only repeated what was said in school or evade an answer by saying that it is to complicated to explain. And here you are (!) doing it in twelve and a half minutes! This basis shows also what I already thought for years and just recently showcased by the wonderful youtube channel Veritasium by Derek Muller. That, in electrical current, it's actually the electric-magnetic waves that carry the energy and not the flow of electrons, because electrons hardly flow anywhere! They just pass on the electric energy to their neighbor and the electro-magnetic field which they create through the excitation brings the energy over to the other side. That's why the material of the wire, their width, wheter it's a bigger solid core or separate strands and isolation can make a huge difference in how that current or signal is distorted or not. Also, as all matter interacts with each other through their electro-magnetic fields, no matter how significant. As such, we, as a big lump of matter, radiate the combined and averaged result of all the matter we exist off and unconsciously influence each other fields. Most people would say that the influence is so insignificant that we would even notice it, but it would explain a lot of phenomena in which people "sense" something that they can't explain like somebodies mode, intentions or why sometimes you feel attracted to somebody who, physically, at first appearance wouldn't attract your attention. Maybe a bit far off, but not in the basic sense of this fundamental physics fact. Long story short, Incredible how you managed to bring this subject so clear and yet in such a short amount of time!! Thank you so much! ☺🙏

[shantanuaphale]

You are simply genius physicist. I think none in world right now has such talent to explain very complex phenomenon with beautiful demonstration or animations.
You caught human mind's ability to understand pictures in motion...

[gamingmitmaus]

I have always wanted to know how polarisation and especially the emitation of EM-Waves from objects that are heated up works. I asked my physics teacher, and even my dad who studied Physics, but they didnt really know. This video explains it so well, that I understood it at first glance! Thanks!

[SamAllamJP]

I’m stunned by your simple, clear and yet comprehensive and sophisticated explanation and presentation. I can bet reading old school physics books wouldn’t help understand electromagnetic waves, the way your 12 minutes clip would help. Much appreciation

[ivanstojanac]

This channel is the best at explaining complex topics in a simple and easy to understand way.

[shambles]

Love your videos. They really help improve my level of understanding of the universe.

[thenewusama]

at 1:34 and my mind is already blown. it makes so much sense

[CT-pigl]

This is the best physics channel on YouTube, and I've watched many. It's ability to cut right to the heart of a concept, explain it in simple terms, and apply that principle to explain disparate practical phenomena

[jeanbriggs]

Thanks much for describing these concepts with such wonderful artistry and clarity. The enthusiasm and sincerity is most evident. Have a wonderful New Year filled with beautifully shared illumination!

[BariScienceLab]

Please, if you could make such an animated video on the physics of conductors and insulators (dielectrics) -- especially polarization of dielectrics, that would be unbelievable. Your animations are changing lives -- please don't stop.

[Randall]

A new ScienceClic post!!! I love this channel. Octave is a fantastic narrator, and the content is always engaging and hugely interesting. Thank you!!