See the Pattern | Understanding Light and Matter Interaction @SeethePattern | Uploaded 1 year ago | Updated 11 hours ago
In the last part, we looked at how photons are emitted and how this creates an emission and absorption spectrum. In this part, we will examine how light or more specifically electromagnetic radiation can interact with matter and what fingerprint these interactions leave behind.

Previous Video
How is light created: https://youtu.be/WpzzVyGsODA

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References:
https://en.wikipedia.org/wiki/Photoelectric_effect
https://en.wikipedia.org/wiki/Phase_velocity
https://www.youtube.com/watch?v=CiHN0ZWE5bk&t=0s
https://www.lavision.de/en/techniques/mie-rayleigh-raman/
https://en.wikipedia.org/wiki/Mie_scattering
https://en.wikipedia.org/wiki/Phase_velocity
https://vlfstanford.ku.edu.tr/research_topic_inlin/introduction-whistler-waves-magnetosphere/
https://sciencedemonstrations.fas.harvard.edu/presentations/collisional-broadening
https://www.astro.uu.se/~ulrike/Spectroscopy.html

00:00 Introduction
00:20 Collisional / Pressure Broadening
02:02 Photoelectric Effect
03:12 Thomson Scattering
04:06 Compton Scattering
04:40 Inverse Compton Scattering
05:03 Double and Multiple Compton Scattering
05:21 Raman Scattering
05:37 Rayleigh Scattering
06:22 Mie Scattering
06:52 Doppler Shift
07:18 Refraction
08:37 Reflection
09:40 Pair Production
10:10 Photodisintegration
10:44 Photofission
11:05 Dispersion Measure
11:43 Whistler Mode
12:10 Cherenkov Radiation

$Understanding Light and Matter Interaction In the last part, we looked at how photons are emitted and how this creates an emission and absorption spectrum. In this part, we will examine how light or more specifically electromagnetic radiation can interact with matter and what fingerprint these interactions leave behind. Previous Video How is light created: https://youtu.be/WpzzVyGsODA Please consider supporting this channel through: https://www.patreon.com/seethepattern https://www.paypal.me/seethepattern Merchandise Available: https://shop.spreadshirt.co.uk/see-the-pattern/ Follow me on: https://www.facebook.com/SeethePattern https://twitter.com/PatternSeethe References: https://en.wikipedia.org/wiki/Photoelectric_effect https://en.wikipedia.org/wiki/Phase_velocity https://www.youtube.com/watch?v=CiHN0ZWE5bk&t=0s https://www.lavision.de/en/techniques/mie-rayleigh-raman/ https://en.wikipedia.org/wiki/Mie_scattering https://en.wikipedia.org/wiki/Phase_velocity https://vlfstanford.ku.edu.tr/research_topic_inlin/introduction-whistler-waves-magnetosphere/ https://sciencedemonstrations.fas.harvard.edu/presentations/collisional-broadening https://www.astro.uu.se/~ulrike/Spectroscopy.html 00:00 Introduction 00:20 Collisional / Pressure Broadening 02:02 Photoelectric Effect 03:12 Thomson Scattering 04:06 Compton Scattering 04:40 Inverse Compton Scattering 05:03 Double and Multiple Compton Scattering 05:21 Raman Scattering 05:37 Rayleigh Scattering 06:22 Mie Scattering 06:52 Doppler Shift 07:18 Refraction 08:37 Reflection 09:40 Pair Production 10:10 Photodisintegration 10:44 Photofission 11:05 Dispersion Measure 11:43 Whistler Mode 12:10 Cherenkov Radiation$

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$Variable Mass Theory: Intrinsic Red-Shift In this episode, we will look at an alternative idea where a property of matter is responsible for causing a redshift which would be intrinsic to that object. What if mass was not a fixed quantity but actually changes with time! This is the theory of Variably Mass which Jayant Narlikar came up with and fits into the Quasi Steady State Cosmology and may well be an alternative model to the Big Bang and also fit in with Arps idea of galaxy formation. Understanding red-shift series: Part 1: Doppler & Cosmological red-shift (https://youtu.be/94_3N7XZjBQ) Part 2: Variable Mass Theory - Intrinsic red-shift (you are here) Part 3: Plasma Red-shift (https://youtu.be/VnNA9mc0DKM) Part 4: Quasar Time-Dilation Paradox (https://youtu.be/8-XoHv_bJMo) Other useful videos: How is light created - emission and absorption spectra (https://youtu.be/WpzzVyGsODA) Light / matter interactions (https://youtu.be/QeE9v7Msw0U) Please consider supporting this channel through: https://www.patreon.com/seethepattern https://www.paypal.me/seethepattern Merchandise Available: https://shop.spreadshirt.co.uk/see-the-pattern/ Follow me on: https://www.facebook.com/SeethePattern https://twitter.com/PatternSeethe References: http://repository.iucaa.in:8080/jspui/bitstream/11007/943/1/201A_1993.pdf https://arxiv.org/abs/physics/0608164 https://core.ac.uk/download/pdf/25361696.pdf https://iopscience.iop.org/article/10.1086/310718/fulltext/5714.text.html https://www.ias.ac.in/article/fulltext/joaa/018/04/0435-0440 Criticism of QSSC https://astro.ucla.edu/~wright/stdystat.htm http://www.desmark.com/fractalcosmos/ #seethepattern #cosmology #science 00:00 Introduction 00:43 Recap of expanding space 01:37 Narlikars Variable Mass Theory 02:27 Intrinsic Red-shift from variable mass 02:40 How does variable mass work? 03:14 Quasi-steady state theory 05:04 Red-shift & apparent magnitude relationship 06:04 Clock rates 06:45 What about pair creation? 07:57 Adhoc assumption of variable mass 08:09 Resonant frequency of Aluminium 08:43 Active galaxies and matter ejection 09:26 Problems with the model 09:52 Lyman-alpha forest 11:58 Galaxy rotation 12:33 Summary$

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Understanding Light and Matter Interaction @SeethePattern