What is Cosmology?

This is the very first of the videos in my new series of Cosmology. I'm going through Dr. Barbara Ryden's textbook "Introduction to Cosmology". If you follow along, you'll get a full upper-division undergraduate course in Cosmology. I used this textbook at William Paterson University.
This course will cover the current state of the science of Cosmology. To follow along, it'll be a good idea for you to ge to know your calculus. Here are the topics of this video:
Introductory Cosmology: Chapter 01. What is Cosmology?
What is Cosmology?
Units of Distance
Units of Mass
Units of Time
Units of Energy and Power
The Very Small
Fundamental Constants of Nature
Planck Units
Gemetrized Units
The Briefest History of Cosmology
How did the Universe begin? Why are we here? When will it all end? What’s it made out of? What’s it’s fate? What’s the meaning of it all? How can we learn anything about any of these questions?
Textbook: / introduction-to-cosmology
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/ @jasonkendallastronomer

[@Truth_Teller_101]

It is very generous of you to share this and your expertise as a professor.

[@giovannilp03]

Man that definition and description of cosmology in the intro was gorgeous

[@JasonKendallAstronomer]

Thank you kindly!

[@jasonhammonds7505]

Amazing teacher. How you walk through this material demonstrates your command. Thank you Professor Kendall.

[@KF1]

The improved audio makes these way professional. Thanks for redoing these!

[@astronomy-channel]

Superb start to what will be epic! The story of the universe!

[@shashilwow]

I'm excited!

[@Jaggerbush]

Thanks for uploading, Jason!

[@TheUpGrayed]

Thank you, from one Jason to another!

[@blkwings69]

Thanks.

[@edd.]

This is epic timing. I’ve been saving up for her text book and it just arrived yesterday!
Are you eventually going to combine all the videos into a playlist?
I’m really excited and looking forward to going through this with you!

[@JasonKendallAstronomer]

I’m likely going to leave them as individual videos. But there is a playlist where I will put them all.
ruclips.net/p/PLyu4Fovbph6cX6Sv4DuLFbZxPv16M-0Om&si=BA_nEWJKrOjSdbDU

[@edd.]

Thank you!!

[@charlesodonnell2993]

Thank you! I need a solid review!

[@Novastar.SaberCombat]

Reflection is key. Unfortunately, the majority of mankind is simple incapable of it. Beyond that, most will run out of their most precious resource well prior to coming anywhere near the idea of True Enlightenment.
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind’s journey now begins.
Upon my chariot, heart and soul’s fate revealed.
In time, all points converge, hope’s strength resteeled.
But to earn final peace at the universe’s endless refrain,
We must see all in nothingness... before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book I)