Our Closest Star

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This is the sixth lecture series of my complete online introductory undergraduate college course. This video series was used at William Paterson University and CUNY Hunter in online classes as well as to supplement in-person course material. Notes and links are present in the videos at the start of each lecture. To begin with, I chat about the bulk properties of the Sun, and some other interesting factoids. Mass, Volume, Density, Temperature, and other things that relate to the Sun as a whole. Next, I’ll teach you all about what the Sun looks like! Prominences, Flares, Sunspots, Ejections! It's a much more active place than you think. It's also mesmerizing, like looking at a fire while camping. After looking at the outside, we go inside, discussing the core of the Sun and its conditions. The core of the Sun is where all of the action begins. It contains the conditions we find in all stars on the Main Sequence. Next, we look at how energy moves around in the Sun, and take a peek at the basic equations of stellar structure. This section lets us know that one day, the Sun will stop shining. That begs the question of exactly how the Sun shines, and how long it will shine, as well as some of the great questions of 19th century Physics. We'll also see what your smile looks like when you get a Nobel Prize. Finally, I discuss how the Standard Model of Physics was tested, and how the existence of fusion in the core of the Sun was actually determined. This led to two Nobel Prizes, and a lot of dry-cleaning fluid down a deep, deep hole.
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And now to zone out and sleep while learning a thing or two from someone who teaches what they're talking about. Thank you, professor

thetobi
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00:02 🌟 Introduction to the Study of Stars and the Sun
00:32 🌞 The Sun as a Star
01:43 🤔 Questions about the Nature of the Sun
03:38 🌞 The Sun's Influence on the Solar System
04:47 🏙 The Sun's Symbolism in Culture and History
25:46 🌞 Introduction to the Sun and its Importance
26:43 🌊 The Sun's Connection to Climate and Space Weather
27:11 ⚡ The Sun's Magnetic Field and Space Weather
29:04 ⭐ The Sun as a Star and Its Importance in Astronomy
43:57 🔥 The Chromosphere and Spicules
46:13 🌟 Prominences
47:08 ⚡ The Solar Corona
50:20 🔬 Spectroscopy of the Sun's Atmosphere
52:49 🌟 Sunspots and Magnetic Fields
56:12 🌠 Sunspot Cycles and Solar Activity
01:00:05 📊 Historical Record of Sunspot Counts
01:45:09 ⚡ Photon Transport and Energy Transfer
01:46:04 🌬 Convection and Buoyancy
01:47:09 🔩 Conduction and Particle Motion
01:48:04 📈 Modeling the Sun's Energy Transport
01:53:41 ⭐ No Gaps in Stars
01:58:01 💪 Hydrostatic Equilibrium
01:59:24 🔬 Equation of State
02:11:03 ⭐ Deriving the First Equation: Photon Diffusion through the Star
02:14:24 🔍 Defining Flux and Luminosity
02:16:08 🌟 The Drunken Walk of a Photon
02:46:24 ⚡ Core of the Sun and Fusion Reactions
02:51:00 💡 Energy Transport in Stars
02:55:00 🔥 Energy Production in the Core of the Sun
02:55:59 🔥 Understanding the Internal Heat of the Sun
02:57:08 🔮 The Development of Thermodynamics
02:58:03 💪 Energy Sources in the 19th Century
02:59:40 🏔 The Study of Geology
03:00:04 🔍 The Conflict between Geologists and Physicists
03:12:31 ⚡ Einstein's Theory of Special Relativity and the Connection between Mass and Energy
03:20:30 🔥 The Discovery of Radioactivity and the Binding Energy of Nuclei
03:20:44 💡 Quantum Tunneling and Nuclear Fusion
03:24:12 🌟 The Gamow Peak and Nuclear Fusion
03:26:04 🔥 Nuclear Fusion and the Sun
03:46:39 💡 Introduction to Neutrinos
03:51:14 📚 The Standard Model of Particle Physics
03:52:24 🔍 The Discovery of Neutrinos
03:55:21 🕰 The Evolution of Our Understanding of Neutrinos

ElectricEric
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Love your teaching videos!! Great job on the remakes!

edd.
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I love your enthusiasm and the way you communicate the subject

MitchKarajohn
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excellent.. I only discovered these recently and then all the remakes come out.. I'm overloaded with space.. amazing

Radar
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3:17:24 That was Paula Abdul :) Another appropriate song for your channel would be neutron dance by the pointer sisters (I was reminded when you mentioned fusion dance).

mwaddams
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Every now and then I fall asleep to watching youtube videos--typically 'pop' videos about math or physics/cosmology.
More and more often I'm waking up to these series of videos. They don't have the 'asmr' of the finely-produced "NOVA" docs, but damn they're good!
Perhaps the most packed AND accessible videos on the subject. . .where even someone who isn't doing advanced studies can pick up ADVANCED information.
Thanks so much for these!

BOBMAN
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What was that at 8:30? Didn't catch that.

grproteus
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Hello! You keep mentioning gases in the suns atmosphere. Are they gases or is it all plasma? Thanks!

ricktcraig
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It's so fun... after studying your videos I can watch other YouTubers so much better... you should call out people like ParalaxNick and other people you want to migrate us towards

anotherplatypus
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And..lol. i guess i wasn't patient enough. Cuz about 1hour 50minutes in you say pretty much the same thing..Apologies ❤

badmeatbrowniesthoughts
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I find it very interesting that the _only_ people who seem to have a gripe with the whole Pluto thing are Americans . . . get over it . . . you're not special.

cseguin