Radiation Processes in Astronomy - Radiation Processes in Astronomy: L3a - Radiation Pressure

This lecture introduces Radiation Pressure (radiation energy stress). We try to introduce in its general form, as a Tensor. Then we discuss why often in astronomy education and research we talk about 'the radiation pressure' as if it were a scalar pressure (cmp. also flux). Useful links: Introduction on tensors by the Master (Feynman, that is): https://www.feynmanlectures.caltech.edu/II_31.html Course: Radiation Processes in Astronomy Lecturer: Prof. Jon Sundqvist Programme: KU Leuven Bachelor Physics & Master Astronomy & Astrophysics #astrophysics #astronomy #education I record lectures live and place them here un-edited, in the hope that it will provide a more authentic feeling of the sort: "we're doing the actual work here and now". So like I keep telling students in the classroom: whenever you discover me doing some error let me know directly; for this channel this means make a comment on the videos. Then we can have a look at it, and thereby learn nicely from each other as we continue to develop our knowledge. You find all lectures under: https://www.youtube.com/playlist?list=PLrGAIWCGSKlDXALWS_6R4Bv3D1vEk85NX If you're interested more in my group's research, here're two links for that: https://fys.kuleuven.be/ster/research-projects/equation-folder/equation-home https://www.youtube.com/@JonSundqvist