CrashCourse

The Arab-Israeli Conflict, which is the ongoing political tensions and military conflicts between Arab nations and Israel, is one of the longest and most complex disputes in the world. Today, we're going to focus on more recent events, and look specifically at the role groundwater plays in preventing a pathway to peace between Israelis and Palestinians. Groundwater makes up the largest portion of available fresh water on Earth, but as we'll see, access isn't always fair and its availability doesn't always line up neatly with political borders.

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#CrashCourse #Geography #Groundwater

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Gases are everywhere, and this is good news and bad news for chemists. The good news: when they are behaving themselves, it's extremely easy to describe their behavior theoretically, experimentally, and mathematically. The bad news is they almost never behave themselves.
In this episode of Crash Course Chemistry, Hank tells how the work of some amazing thinkers combined to produce the Ideal Gas Law, how none of those people were Robert Boyle, and how the ideal gas equation allows you to find out pressure, volume, temperature, or number of moles. You'll also get a quick introduction to a few jargon-y phrases to help you sound like you know what you're talking about.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

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Table of Contents
Ideal Gas Law Equation 0:50
Everyone But Robert Boyle 1:35
Ideal Gas Law to Figure Out Things 6:16
Jargon Fun Time 7:46

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Independent public art like graffiti and street art often gets a bad rap, thanks to its legal classification as vandalism. But these art forms have much to offer as a means for people to speak truth to power and take ownership of community spaces. In this episode of Crash Course Art History, we’ll explore the various ways artists have used illicit public art to express themselves.

Crash Course Art History #17
Introduction: Ancient Graffiti 00:00
Independent Public Art 01:01
Impermanent Art 02:29
Public Art as Political Expression 04:11
Jean-Michel Basquiat 06:40
Review & Credits 09:12

Image Descriptions: https://docs.google.com/document/d/1ETiCxe4GrVzFii7dBhF42oHx1EUCCh5y12wbtUjsH8A/edit

Sources: https://docs.google.com/document/d/1GW2NKzhpMNMmRyAFJVhFJG9cSfUOMRL-QrcWuHcWcIA/edit?usp=sharing


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Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Emily Beazley, Brandon Thomas, Forrest Langseth, oranjeez, Rie Ohta, Jack Hart, UwU, Leah H., David Fanska, Andrew Woods, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Krystle Young, Burt Humburg, Scott Harrison, Mark & Susan Billian, Alan BridgemEmily Beazley, Brandon Thomas, Forrest Langseth, oranjeez, Rie Ohta, Jack Hart, UwU, Leah H., David Fanska, Andrew Woods, Stephen Akuffo, Toni Miles, Steve Segreto, Ken Davidian, Kyle & Katherine Callahan, Laurel Stevens, Krystle Young, Burt Humburg, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Jennifer Killen, Sarah & Nathan Catchings, Jon Allen, Bernardo Garza, team dorsey, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Ken Penttinen, Siobhán, Les Aker, Barrett Nuzum, William McGraw, Vaso , Nathan Taylor, ClareG, Constance Urist, Rizwan Kassim, Alex Hackman, kelsey warren, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks
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In which John Green teaches you about America's "peculiar institution," slavery. I wouldn't really call it peculiar. I'd lean more toward a horrifying and depressing institution, but nobody asked me. John will talk about what life was like for an enslaved person in the 19th century United States, and how enslaved people resisted oppression, to the degree that was possible. We'll hear about cotton plantations, the violent punishment of enslaved people, the day-to-day lives of enslaved people, and slave rebellions. Nat Turner, Harriet Tubman, and Whipped Peter all make an appearance. Slavery as an institution is arguably the darkest part of America's history, and we're still dealing with its aftermath 150 years after it ended.

Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode.
Memoirs from former slaves like abolitionist Frederick Douglass provide insightful context on the harsh realities of slavery: https://www.commonlit.org/texts/the-narrative-of-the-life-of-frederick-douglass-excerpt-from-chapter-1
Others resisted the violence of slavery through open rebellion, like Nat Turner: https://www.commonlit.org/texts/nat-turner-s-slave-revolt
Abolitionists and free slaves alike had to fight against unfair laws such as the Fugitive Slave Act: https://www.commonlit.org/texts/fugitive-slave-act-of-1793

Want to learn more about the history and experiences of enslaved people in the United States? Check out these videos from Crash Course Black American History:
The Transatlantic Slave Trade (#1): https://www.youtube.com/watch?v=S72vvfBTQws
Slavery in the American Colonies (#2): https://www.youtube.com/watch?v=G4syEkyOzmY
Slave Codes (#4): https://www.youtube.com/watch?v=gu9RIGGXeNo
The Germantown Petition Against Slavery (#5): https://www.youtube.com/watch?v=XT8q6cYsVpc
The US Constitution, 3/5, and the Slave Trade Clause (#9): https://www.youtube.com/watch?v=57xUbch1viI
The Fugitive Slave Act of 1793 (#10): https://www.youtube.com/watch?v=AcdOWKiKgWU
Women's Experience Under Slavery (#11): https://www.youtube.com/watch?v=eAe7ETfQ_aA
The Underground Railroad (#15): https://www.youtube.com/watch?v=Byh-HityBIM

Chapters:
Introduction: Slavery in Early America 00:00
North & South economic ties 0:50
Slave-based agriculture in the South 1:49
Popular attitudes concerning slavery 2:28
Lives & experiences of enslaved people 5:53
Family, love, & religion of enslaved people 8:00
Mystery Document 9:18
How people resisted & escaped slavery 10:37
Slave rebellions 11:37
Nat Turner's Rebellion 12:09
How enslaved people resisted their oppression & why it matters 12:48
Credits 13:48

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In this episode, Dr. Katie Mack gives John Green an idea of what to expect for the future of our universe.

Head to https://policygenius.com/crashcourse to get your free life insurance quotes and see how much you could save.

***
Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourse
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Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Emily Beazley, Brandon Thomas, Forrest Langseth, oranjeez, Rie Ohta, Jack Hart, UwU, Leah H., David Fanska, Andrew Woods, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Krystle Young, Burt Humburg, Scott Harrison, Mark & Susan Billian, Alan BridgemEmily Beazley, Brandon Thomas, Forrest Langseth, oranjeez, Rie Ohta, Jack Hart, UwU, Leah H., David Fanska, Andrew Woods, Stephen Akuffo, Toni Miles, Steve Segreto, Ken Davidian, Kyle & Katherine Callahan, Laurel Stevens, Krystle Young, Burt Humburg, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Jennifer Killen, Sarah & Nathan Catchings, Jon Allen, Bernardo Garza, team dorsey, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Ken Penttinen, Siobhán, Les Aker, Barrett Nuzum, William McGraw, Vaso , Nathan Taylor, ClareG, Constance Urist, Rizwan Kassim, Alex Hackman, kelsey warren, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks
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Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Table of Contents
Determining Formulas and Names of Monatomic Ions 2:06
Finding Cation-and Anion Forming Elements on the Periodic Table 3:29
Writing Formulas and Naming Transition Metals 4:02
Naming Acids and their Anions 5:35

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What’s the line between inspiration and flat-out appropriation? In this episode of Crash Course Art History, we grapple with questions about artistic originality and authenticity that have plagued the art world for hundreds of years. In today’s world of AI-generated art, it’s only getting more complicated. You will see a few AI-generated images in this video as part of our effort to dive directly into the questions surrounding AI-generated art.

Crash Course Art History #18
Introduction: AI Art 00:00
Dürer's Copycat 01:10
Provenance & Authentication 02:46
Originality & Copyright 03:58
Conceptual Art 05:51
The "Hope" Poster 08:29
Review & Credits 09:58

Image Descriptions: https://docs.google.com/document/d/1ETiCxe4GrVzFii7dBhF42oHx1EUCCh5y12wbtUjsH8A/edit

Sources: https://docs.google.com/document/d/1GW2NKzhpMNMmRyAFJVhFJG9cSfUOMRL-QrcWuHcWcIA/edit?usp=sharing

***
Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourse
Or support us directly: https://complexly.com/support
Join our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/email
Get our special Crash Course Educators newsletter: http://eepurl.com/iBgMhY

Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Emily Beazley, Brandon Thomas, Forrest Langseth, oranjeez, Rie Ohta, Jack Hart, UwU, Leah H., David Fanska, Andrew Woods, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Krystle Young, Burt Humburg, Scott Harrison, Mark & Susan Billian, Alan BridgemEmily Beazley, Brandon Thomas, Forrest Langseth, oranjeez, Rie Ohta, Jack Hart, UwU, Leah H., David Fanska, Andrew Woods, Stephen Akuffo, Toni Miles, Steve Segreto, Ken Davidian, Kyle & Katherine Callahan, Laurel Stevens, Krystle Young, Burt Humburg, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Jennifer Killen, Sarah & Nathan Catchings, Jon Allen, Bernardo Garza, team dorsey, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Ken Penttinen, Siobhán, Les Aker, Barrett Nuzum, William McGraw, Vaso , Nathan Taylor, ClareG, Constance Urist, Rizwan Kassim, Alex Hackman, kelsey warren, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks
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This week, Stan Muller teaches you the basics of copyright in the United States. Copyright law is territorial, so we're going to cover the system we know the most about, and that's the US. Stan will talk about what kind of ideas can be copyrighted, who can get a copyright, and what protections the copyright grants. We'll also talk about the always contentious and seemingly ever-growing term of copyright. Stan will also teach you about the low bar for creativity, which means that original work doesn't have to be all that original, and he'll also touch on the problems with copyright in the modern world.

The Magic 8 Ball is a registered trademark of the Mattel corporation.

Citation 1: Title 17 United States Code, section 101
Citation 2: 17 USC 101
Citation 3: 17 USC 101

***
Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Mark Brouwer, Simun Niclasen, Brad Wardell, Roger C. Rocha, Jan Schmid, Elliot Beter, Nevin Spoljaric, Sandra Aft, SR Foxley, Jessica Simmons, Stefan R. Finnerup, Jason A Saslow, Robert Kunz, Jessica Wode, Mike Drew, Steve Marshall, Anna-Ester Volozh, Christian Ludvigsen, Jeffrey Thompson, James Craver

***

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In which John Green teaches you about the Market Revolution. In the first half of the 19th century, the way people lived and worked in the United States changed drastically. At play was the classic (if anything in a 30-year-old nation can be called classic) American struggle between the Jeffersonian ideal of individuals sustaining themselves on small farms vs. the Hamiltonian vision of an economy based on manufacturing and trade. I'll give you one guess who won. Too late! It was Hamilton, which is why if you live in the United States, you probably live in a city and are unlikely to be a farmer. Please resist the urge to comment about this if you live in the country and/or are a farmer. Your anecdotal experience doesn't change the fact that most people live in cities. In the early 19th century, new technologies in transportation and communication helped remake the economic system of the country. Railroads and telegraphs changed the way people moved goods and information around. The long and short of it is, the Market Revolution meant that people now went somewhere to work rather than working at home. Often, that somewhere was a factory where they worked for an hourly wage rather than getting paid for the volume of goods they manufactured. This shift in the way people work has repercussions in our daily lives right down to today. Watch as John teaches you how the Market Revolution sowed the seeds of change in the way Americans thought about the roles of women, slavery, and labor rights. Also, check out high school John wearing his Academic Decathalon medals.

Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. As America invested in its market economy, certain transcendentalists resisted the rise of production and consumerism over individual freedoms, including Henry David Thoreau in his book Walden: https://www.commonlit.org/texts/excerpt-from-walden
Ralph Waldo Emerson promoted transcendental values as well in his essay “Self-Reliance”: https://www.commonlit.org/texts/excerpt-from-self-reliance

Chapters:
Introduction: The Market Revolution 00:00
The Era of Good Feelings 1:00
New technology in transportation 1:43
Steamboats and canals 2:45
Railroads & telegraphs 3:35
Factories & interchangeable parts 4:02
The rise of modern banking 4:51
Encouraging Competition 5:37
Work & life during the Market Revolution 6:29
Westward expansion & "Manifest Destiny" 8:32
Mystery Document 10:09
Transcendentalists 11:28
Wealth disparities after the Market Revolution 11:53
Credits 13:33

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Going out in the sun can work wonders for your mood, but unfortunately too much UV exposure can do serious damage to your DNA. This damage occurs through a type of organic reaction called a pericyclic reaction. In this episode of Crash Course Organic Chemistry, we’ll explore pericyclic reactions to see how the sun can both give us life, and hurt us, and also look at other important pericyclic reactions, such as the Diels-Alder reaction.

Episode Sources:
https://cen.acs.org/articles/95/i15/Remembering-organic-chemistry-legend-Robert-Burns-Woodward.html
https://www.nobelprize.org/prizes/chemistry/1950/alder/biographical/
https://www.nobelprize.org/prizes/chemistry/1981/summary/
https://www.nobelprize.org/prizes/chemistry/1981/fukui/facts/
https://www.uni-kiel.de/grosse-forscher/index.php?nid=diels&lang=e
Ohashi, M., Jamieson, C.S., Cai, Y. et al. An enzymatic Alder-ene reaction. Nature 586, 64–69 (2020). https://doi.org/10.1038/s41586-020-2743-5

Further Reading on Pericyclic Reactions and the Woodward-Hoffman Rules:
https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Supplemental_Modules_(Organic_Chemistry)/Reactions/Pericyclic_Reactions
Fleming, I. (1977). Frontier orbitals and organic chemical reactions. Wiley.

Series Sources:
Brown, W. H., Iverson, B. L., Ansyln, E. V., Foote, C., Organic Chemistry; 8th ed.; Cengage Learning, Boston, 2018.
Bruice, P. Y., Organic Chemistry, 7th ed.; Pearson Education, Inc., United States, 2014.
Clayden, J., Greeves, N., Warren., S., Organic Chemistry, 2nd ed.; Oxford University Press, New York, 2012.
Jones Jr., M.; Fleming, S. A., Organic Chemistry, 5th ed.; W. W. Norton & Company, New York, 2014.
Klein., D., Organic Chemistry; 1st ed.; John Wiley & Sons, United States, 2012.
Louden M., Organic Chemistry; 5th ed.; Roberts and Company Publishers, Colorado, 2009.
McMurry, J., Organic Chemistry, 9th ed.; Cengage Learning, Boston, 2016.
Smith, J. G., Organic chemistry; 6th ed.; McGraw-Hill Education, New York, 2020.
Wade., L. G., Organic Chemistry; 8th ed.; Pearson Education, Inc., United States,

***
Watch our videos and review your learning with the Crash Course App!
Download here for Apple Devices: https://apple.co/3d4eyZo
Download here for Android Devices: https://bit.ly/2SrDulJ

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Dave Freeman, Hasan Jamal, DL Singfield, Jeremy Mysliwiec, Shannon McCone, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Erin Switzer, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel A Stevens, Vincent, Michael Wang, Stacey Gillespie, Jaime Willis, Krystle Young, Michael Dowling, Alexis B, Burt Humburg, Aziz Y, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Jennifer Dineen, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie Dean, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Jessica Wode, Mark, Caleb Weeks
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