https://gdpark.blog/tags/frequency-dependence/Recent content in Frequency Dependence on gdpark.blogHugoenSat, 08 Aug 2015 00:00:00 +0000https://gdpark.blog/posts/electromagnetism-35-frequency-dependence-of-the-permittivity/Sat, 08 Aug 2015 00:00:00 +0000https://gdpark.blog/posts/electromagnetism-35-frequency-dependence-of-the-permittivity/Turns out permittivity isn’t just a constant — it changes with frequency, and we dig into why using a good ol’ spring-mass atomic model instead of scary orbitals.