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.
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Alessandro Roussel,
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To learn more :
en.wikipedia.org/wiki/Electromagnetic_radiation