Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well.

This video uses sounds from Freesound.org.

Citations:
http://biology.about.com/od/pl....antbiology/a/aa05060
http://www.rsc.org/Education/T....eachers/Resources/cf
http://www.ncbi.nlm.nih.gov/books/NBK21598/
http://www.life.illinois.edu/g....ovindjee/paper/gov.h
http://scienceaid.co.uk/biolog....y/biochemistry/photo
http://www.biology-innovation.....co.uk/pages/plant-bi
http://chemistry.about.com/od/....lecturenotesl3/a/pho
http://www.bio.umass.edu/biolo....gy/conn.river/calvin
http://www.talkorigins.org/faq....s/thermo/probability

Table of Contents:
1) Water 1:16
2) Carbon Dioxide 1:32
3) Sunlight/Photons 1:43
4) Chloroplasts 1:57
5) Light Reaction/Light-Dependent 2:42
a. Photosystem II 3:33
b. Cytochrome Complex 5:54
c. ATP Synthase 6:16
d. Photosystem I 7:06
6) Dark Reactions/Light-Independent 7:55
a. Phase 1 - Carbon Fixation 8:50
b. Phase 2 - Reduction 11:31
c. Phase 3 - Regeneration 12:02

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In which John Green teaches you about Imperialism, but not from the perspective of the colonizers. This week John looks at some Asian perspectives on Imperialism; specifically, writers from countries that were colonized by European powers. We'll look at the writings of Sayyid Jamal ad-Din al-Afghani from the Middle East, Liang Qichao from China, and Rabindranath Tagore from India. these voices from the countries that were colonized give us a sense of how conquered people saw their conquerors, and give an insight into what these nations learned from being dominated by Europe. It's pretty interesting, OK? A lot of this episode is drawn from a fascinating book by Pankaj Mishra called The Ruins of Empire: The Revolt Against the West and the Remaking of Asia. You should read it.

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In which John Green teaches you about American women in the Progressive Era and, well, the progress they made. So the big deal is, of course, the right to vote women gained when the 19th amendment was passed and ratified. But women made a lot of other gains in the 30 years between 1890 and 1920. More women joined the workforce, they acquired lots of other legal rights related to property, and they also became key consumers in the industrial economy. Women also continued to play a vital role in reform movements. Sadly, they got Prohibition enacted in the US, but they did a lot of good stuff, too. The field of social work emerged as women like Jane Addams created settlement houses to assist immigrants in their integration into the United States. Women also began to work to make birth control widely available. You'll learn about famous reformers and activists like Alice Paul, Margaret Sanger, and Emma Goldman, among others.

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. Suffragists faced a decades-long debate on women’s right to vote: https://www.commonlit.org/text....s/address-to-congres
While it was a hard fight to get the vote, women eventually received suffrage in 1920: https://www.commonlit.org/text....s/was-hard-fight-to-

Chapters:
Introduction: Women in the Progressive Era 00:00
The Women's Era 1:01
The Women's Christian Temperance Union 1:54
The Role of Women in Politics During the Progressive Era 2:52
National Consumers League 3:15
Women Working Outside the Home 4:08
Mystery Document 4:58
Birth Control 5:57
Why Access to Birth Control Matters 7:07
Jane Addams & The Settlement House Movement 7:47
Women and Electoral Politics 8:13
The 19th Amendment 8:42
The Suffrage Movement 9:03
The National Women's Party 9:44
The Equal Rights Amendment 11:03
The Legacy of the Suffragettes 12:13
Credits 13:00

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Massive stars fuse heavier elements in their cores than lower-mass stars. This leads to the creation of heavier elements up to iron. Iron robs critical energy from the core, causing it to collapse. The shock wave, together with a huge swarm of neutrinos, blasts through the star’s outer layers, causing it to explode. The resulting supernova creates even more heavy elements, scattering them through space. Also, happily, we’re in no danger from a nearby supernova.

Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/product....s/crashcourse-astron

--
Chapters:
Introduction: High Mass Stars 00:00
Core Fusion Creates Heavier Elements 0:51
Other Stages of High Mass Stars 2:22
Silicone & Iron Fusion 3:43
Core Collapse 6:20
Supernova Remnants 8:22
Explosive Nucleosynthesis 9:50
Review 11:04
--

PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Follow Phil on Twitter: https://twitter.com/badastronomer

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--

PHOTOS/VIDEOS
Blowing Bubbles http://chandra.harvard.edu/res....ources/animations/pn [credit: NASA/CXC/April Jubett]
The Sizes of Stars http://www.eso.org/public/images/eso1030c/ [credit: ESO/M. Kornmesser]
Red giants https://commons.wikimedia.org/....wiki/File:Redgiants. [credit: Wikimedia Commons]
Alpha Orionis http://imgsrc.hubblesite.org/h....u/db/images/hs-1996- [credit: A. Dupree (CfA), NASA, ESA]
Sun and VY Canis Majoris https://commons.wikimedia.org/....wiki/File:Sun_and_VY [credit: Wikimedia Commons]
Witch Head Nebula and Rigel http://www.deepskycolors.com/a....rchive/2009/11/16/wi [credit: Rogelio Bernal Andreo]
Layers of a massive star https://en.wikipedia.org/wiki/....User:FT2/scc#/media/ [credit: Wikimedia Commons]
NASA's Swift Reveals New Phenomenon in a Neutron Star http://www.nasa.gov/mission_pa....ges/swift/bursts/new [credit: NASA's Goddard Space Flight Center]
What is a black hole? http://www.nasa.gov/audience/f....orstudents/k-4/stori [credit: NASA/CXC/M.Weiss]
The Death of Stars http://www.spacetelescope.org/....videos/hubblecast52a [credit: ESA/Hubble]
Giant Mosaic of the Crab Nebula http://www.nasa.gov/multimedia..../imagegallery/image_ [credit: NASA, ESA, J. Hester (Arizona State University)]
Hubble and Chandra spot a celestial bauble http://www.spacetelescope.org/images/heic1018b/ [credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), and NASA/CXC/SAO/J. Hughes]
Vela Supernova Remnant http://www.glitteringlights.co....m/Images/Nebulae/i-p [credit: Marco Lorenzi]
Spica [credit: Phil Plait]
Cassiopeia A https://en.wikipedia.org/wiki/....Cassiopeia_A#/media/ [credit: Oliver Krause (Steward Observatory) George H. Rieke (Steward Observatory) Stephan M. Birkmann (Max-Planck-Institut fur Astronomie) Emeric Le Floc'h (Steward Observatory) Karl D. Gordon (Steward Observatory) Eiichi Egami (Steward Observatory) John Bieging (Steward Observatory) John P. Hughes (Rutgers University) Erick Young (Steward Observatory) Joannah L. Hinz (Steward Observatory) Sascha P. Quanz (Max-Planck-Institut fur Astronomie) Dean C. Hines (Space Science Institute)]
Sloshing Supernova http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=1 [credit: NASA's Goddard Space Flight Center Video and images courtesy of NASA/JPL-Caltech]
Star Burst http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=1 [credit: NASA's Goddard Space Flight Center Video courtesy of ESA/Hubble/L. Calcada]

This week on Crash Course Econ, Jacob and Adriene are talking about failure. Specifically, we're talking about market failures. When markets don't provide a good or service efficiently, that's a market failure. When markets fail, often governments step in to provide those services. Stuff like public education or military protection are good examples of market failures. So, what are some of the ways governments address, market failures? Well, it's funny you should ask, as we also talk about that in this episode. We'll get into taxes and subsidies and externalities and a bunch of other important stuff this week on Crash Course Econ.

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:

Mark, Eric Kitchen, Jessica Wode, Jeffrey Thompson, Steve Marshall, Moritz Schmidt, Robert Kunz, Tim Curwick, Jason A Saslow, SR Foxley, Elliot Beter, Jacob Ash, Christian, Jan Schmid, Jirat, Christy Huddleston, Daniel Baulig, Chris Peters, Anna-Ester Volozh, Ian Dundore, Caleb Weeks

--

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Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut shape aligned with the plane of the solar system; the scattered disk is more eccentric and is the source of short-period comets, and the Oort Cloud which surrounds the solar system out to great distances is the source of long-period comets. These bodies all probably formed closer to the Sun and got flung out to the solar system’s suburbs by gravitational interactions with the outer planets.

Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/product....s/crashcourse-astron

--

Chapters:
Introduction: Where Do Comets Come From? 00:00
Kuiper Belt, Scattered Disk, and Oort Cloud 2:52
Long-Period Comets come from the Oort Cloud 4:03
Short-Period Comets come from the Scattered Disk 4:27
Pluto, Plutinos, and other Kuiper Belt Objects 4:47
Oort Cloud Objects 8:25
Review 10:38
--

PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Follow Phil on Twitter: https://twitter.com/badastronomer

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--

PHOTOS/VIDEOS
HD Long Exposure Star Timelapse https://vimeo.com/34172172 [credit: Jeffrey Beach, Beachfront B-Roll]
Fine Structure in the Comet’s Jets http://blogs.esa.int/rosetta/2....015/01/16/fine-struc http://en.wikipedia.org/wiki/P....rotoplanetary_disk#m [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
Artist's impression of a protoplanetary disk. [credit: ESO/L. Calçada - ESO]
Creating Gas Giants http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=1 [credit: NASA's Goddard Space Flight Center]
What is a Sungrazing Comet? http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=1 [credit: NASA's Goddard Space Flight Center]
Pluto/Neptune Orbit http://www2.jpl.nasa.gov/files..../images/browse/pluto [credit: NASA]
1992 QB1 http://solarsystem.nasa.gov/mu....ltimedia/gallery/199 [credit: ESO]
Eris http://apod.nasa.gov/apod/ap060918.html [credit: W. M. Keck Observatory]
Moons of Pluto http://en.wikipedia.org/wiki/K....erberos_(moon)#/medi [credit: NASA, ESA, and M. Showalter (SETI institute)]
New Horizons Approach http://pluto.jhuapl.edu/common..../content/animations/ [credit: JHUAPL]
Moon http://svs.gsfc.nasa.gov/vis/a....000000/a003800/a0038 [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio]
Pluto http://solarsystem.nasa.gov/multimedia/display.cfm?Category=Planets&IM_ID=20073 [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]
Sedna’s Orbit http://commons.wikimedia.org/w....iki/File:Sedna-PIA05 [credit: NASA]
Artist’s Conception of Kuiper Belt http://en.wikipedia.org/wiki/F....ile:14-281-KuiperBel [credit: NASA, Wikimedia Commons]
Kuiper Belt World (video) http://planetquest.jpl.nasa.gov/video/41 [credit: NASA Kepler Mission/Dana Berry]
Pluto Discovery Plates http://azmemory.azlibrary.gov/....cdm/singleitem/colle [credit: Clyde Tombaugh, Lowell Observatory]

In the aftermath of the revolutions and upheaval in 18th and early 19th century Europe, there was a hunger for reform across the continent. Reformers like Robert Owen, Charles Fourier, and Auguste Comte proposed radical new ideas, and at the same time, regular people began to stand up and ask for greater equality, and a louder voice in how they were governed. Results were mixed, but a lot of the ideas that emerged during this time are still echoing in our world today.

Sources

-Hosking, Geoffrey. Russia: People and Empire. Cambridge: Harvard University Press, 1997.
-Hunt, Lynn et al. The Making of the West: Peoples and Cultures. 6th ed. Boston: Bedford St. Martin’s, 2019.
-Judson, Pieter M. The Hapsburg Empire: A New History. Cambridge: Harvard University Press,
-Kent, Susan Kingsley. A New History of Britain: Four Nations and an Empire. New York: Oxford University Press, 2017.
-Sperber, Jonathan. Revolutionary Europe 1780-1850. 2nd ed. London: Routledge, 2017.

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:

Eric Prestemon, Sam Buck, Mark Brouwer, Indika Siriwardena, Avi Yashchin, Timothy J Kwist, Brian Thomas Gossett, Haixiang N/A Liu, Jonathan Zbikowski, Siobhan Sabino, Zach Van Stanley, Jennifer Killen, Nathan Catchings, Brandon Westmoreland, dorsey, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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#crashcourse #history #europeanhistory

In which John compares and contrasts Greek civilization and the Persian Empire. Of course, we're glad that Greek civilization spawned modern western civilization, right? Maybe not. From Socrates and Plato to Darius and Xerxes, John explains two of the great powers of the ancient world, all WITHOUT the use of footage from 300.

Chapters:
Introduction 00:00
The Persian Empire 0:39
An Open Letter to Aristophanes 3:33
Ionian Greek City-States 5:04
The Persian Wars 5:44
The Peloponnesian War 7:21
Did the Right Side Win the Persian Wars? 9:09
Credits 11:09

Resources:
The Histories of Herodotus: http://goo.gl/I1TM9u
Plato: http://goo.gl/GEcfWX
Plays of Aristophanes: http://goo.gl/xzb9Ff

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In which John Green teaches you about the changes wrought by contact between the Old World and the New. John does this by exploring the totally awesome history book "The Columbian Exchange" by Alfred Crosby, Jr. After Columbus "discovered" the Americas, European conquerors, traders, and settlers brought all manner of changes to the formerly isolated continents. Disease and invasive plant and animal species remade the New World, usually in negative ways. While native people, plants, and animals were being displaced in the Americas, the rest of the world was benefitting from American imports, especially foods like maize, tomatoes, potatoes, pineapple, blueberries, sweet potatoes, and manioc. Was the Columbian Exchange a net positive? It's debatable. So debate.

The Columbian Exchange, by Alfred Crosby, Jr: https://bit.ly/3M3ZtbG

Chapters:
Introduction: The Columbian Exchange 00:00
Diseases of the Columbian Exchange 1:14
John Green Does the Cinnamon Challenge (Ew) 4:21
An Open Letter to Tobacco 5:09
Animals of the Columbian Exchange 5:51
Plants of the Columbian Exchange 7:27
People of the Columbian Exchange 9:53
Credits 11:36

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Today we're going to tell the story of a quiet revolution in the 1960s that shifted our entire understanding of how the Earth works. We currently believe that the Earth's broken outer shell rises from the mantle and folds back in - kind of like a dance of creative destruction and reconstruction - giving us our continents and oceans, mountains and valleys, volcanoes, and earthquakes. And it would take a group of scientists all over the world to get us this grand unifying theory of plate tectonics.

SOURCES
Petersen, et al 2011. Fundamentals of Physical Geography. Cengage
Christopherson, R.W. 2010. Elemental Geosystems. Prentice Hall. 6th edition
Strahler, A. 2011. Introducing Physical Geography. Wiley and Sons. 5th Edition
http://metrocosm.com/earth-19000bc-3000ad.html
https://dinosaurpictures.org/ancient-earth#750
https://earthsky.org/space/ear....th-as-seen-from-spac
https://oceanexplorer.noaa.gov..../explorations/lewis_
https://www.nationalgeographic.....org/encyclopedia/ri
ttps://www.ck12.org/earth-science/Oce....an-Ocean-Convergent-
https://www.reference.com/scie....nce/oceanic-oceanic-
http://www.geosci.usyd.edu.au/....users/prey/ACSGT/ERe

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Michael M. Varughese, Ben Follows, Kyle & Katherine Callahan, Laurel A Stevens, Chris Routh, Evan Lawrence Henderson, Vincent, Emilee Murphy, Michael Wang, Jordan willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, Nick, 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, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Eric Prestemon, Jirat, Katie Dean, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Matthew, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb Weeks
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#CrashCourse #Geography #Tectonics

This week we are looking at renewable energy sources and why we need them. We’ll explore hydropower, wind, geothermal, and solar power, as well as some of the challenges, and how engineers are working to make their use more widespread.

Crash Course Engineering is produced in association with PBS Digital Studios: https://www.youtube.com/playli....st?list=PL1mtdjDVOoO

***

RESOURCES:
http://www.energyenvoys.org.uk..../sites/default/files
https://whatsyourimpact.org/gr....eenhouse-gases/carbo
https://www.renewableenergywor....ld.com/hydropower/te
https://www.iea.org/topics/renewables/hydropower/
https://twitter.com/nationalgr....iduk/status/10142553
http://www.engineeringchallenges.org/9082.aspx

***

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Eric Prestemon, Sam Buck, Mark Brouwer, Naman Goel, Patrick Wiener II, Nathan Catchings, Efrain R. Pedroza, Brandon Westmoreland, dorsey, Indika Siriwardena, James Hughes, Kenneth F Penttinen, Trevin Beattie, Satya Ridhima Parvathaneni, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, SR Foxley, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Malcolm Callis, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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In which John relates a condensed history of India, post-Indus Valley Civilization. John explores Hinduism and the origins of Buddhism. He also gets into the reign of Ashoka, the Buddhist emperor who, in spite of Buddhism's structural disapproval of violence, managed to win a bunch of battles.

Chapters:
Introduction 00:00
The Vedas 0:55
The Caste System 1:33
Dharma 2:40
Samsara, Moksha, and Karma 3:33
Buddhism 5:18
Chutes and Ladders 8:04
Ashoka 9:18
Hinduism 11:04
Credits 11:47

Resources:
India: A History by John Keay: https://bit.ly/3uEgVxE
The Bhagavad Gita: https://bit.ly/3O8A96l
The Bhagavad Gita, Upanishads, and Rig Veda, all-in-one edition: https://bit.ly/3xqP85N

Credits:
Executive Producer: John Green
Producer: Stan Muller
Writer and historian: Raoul Meyer
Script Supervisor: Danica Johnson
Music: Jason Weidner

Thought Bubble is a product of the Smart Bubble Society: http://dft.ba/-smartbubble
the Smart Bubble Society is:
Suzanna Brusikiewicz
Jonathon Corbiere
Nick Counter
Allan Levy
James Tuer
Adam Winnik

Set Design: Donna Sink
Props: Brian McCutcheon

Photos:
David Shankbone
ClipWorks

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In which John Green examines the French Revolution, and gets into how and why it differed from the American Revolution. Was it the serial authoritarian regimes? The guillotine? The Reign of Terror? All of this and more contributed to the French Revolution not being quite as revolutionary as it could have been. France endured multiple constitutions, the heads of heads of state literally rolled, and then they ended up with a megalomaniacal little emperor by the name of Napoleon. But how did all of this change the world, and how did it lead to other, more successful revolutions around the world? Watch this video and find out. Spoiler alert: Marie Antoinette never said, "Let them eat cake." Sorry.

Chapters:
Introduction: The French Revolution 00:00
The French Declare Bankruptcy 0:41
Ancien Régime, Estates General, and the National Assembly 2:05
Declaration of Rights of Man and Citizen 3:16
Louis XVI, Marie Antionette, and the Women's March 4:00
The Jacobins 4:43
Austria and Prussia Intervene 5:35
An Open Letter to the Guillotine 6:48
Guillotines Galore 7:35
Napoleon Bonaparte 8:23
How Revolutionary was the French Revolution? 9:44
Credits 11:22

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In which John Green teaches you about the United States in the 1920s. They were known as the roaring 20s, but not because there were lions running around everywhere. In the 1920s, America's economy was booming, and all kinds of social changes were in progress. Hollywood, flappers, jazz, there was all kinds of stuff going on in the 20s. But as usual with Crash Course, things were about to take a turn for the worse. John will teach you about the Charleston, the many Republican presidents of the 1920s, laissez-faire capitalism, jazz, consumer credit, the resurgent Klan, and all kinds of other stuff.

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. The Roaring Twenties was characterized by great highs: https://www.commonlit.org/text....s/the-roaring-twenti
However, the Roaring Twenties ended with the country's most tragic low, the Great Depression: https://www.commonlit.org/text....s/the-great-depressi

Chapters:
Introduction: The 1920s 00:00
The Roaring 20's 0:46
Laissez-Faire Capitalism 1:14
Warren G. Harding's Corrupt Administration 1:55
Automobiles & Manufacturing 2:24
Leisure & Pop Culture 3:29
The Birth of the American Film Industry 3:57
Consumer Debt and the "American Standard of Living" 4:23
Contemporary Celebrity Culture 4:44
Mystery Document 5:33
Flappers & Women's Liberation 6:24
Wealth Disparities in the 1920s 7:12
The Supreme Court's Juris Prudence of Civil Liberties 8:50
Hyper-Patriotism and White Supremacy 9:38
Immigration Restriction Laws 10:15
The Scopes Trial & Teaching Evolution 11:13
The Legacy of the 1920s 12:04
Credits 12:36

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Today we’re rounding out our planetary tour with ice giants Uranus and Neptune. Both have small rocky cores, thick mantles of ammonia, water, and methane, and atmospheres that make them look greenish and blue. Uranus has a truly weird rotation and relatively dull weather, while Neptune has clouds and storms whipped by tremendous winds. Both have rings and moons, with Neptune’s Triton probably being a captured iceball that has active geology.

This episode was brought to you by Squarespace http://www.squarespace.com/crashcourse

Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/product....s/crashcourse-astron

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Chapters:
Introduction: Uranus 00:00
Uranus's Structure 1:35
Uranus's Atmosphere 2:53
Uranus's Weird Tilt 3:55
Uranus's Moons 5:12
Uranus's Rings 6:00
Neptune's Structure 6:35
Neptune's Atmosphere 7:02
Neptune's Magnetic Field & Rings 8:10
Triton: Neptune's Largest Moon 8:36
The Discovery of Neptune 9:52
Review 11:27
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PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer

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--

PHOTOS/VIDEOS
Uranus http://en.wikipedia.org/wiki/V....oyager_2#/media/File [credit: NASA/JPL/Voyager mission]
Neptune https://www.nasa.gov/content/2....5-years-ago-voyager- [credit: NASA]
King George III http://en.wikipedia.org/wiki/G....eorge_III_of_the_Uni
Uranus from Earth picture by Phil Plait
Uranus, Earth size comparison http://en.wikipedia.org/wiki/F....ile:Uranus,_Earth_si [credit: NASA]
Uranus core, reconstructed from http://en.wikipedia.org/wiki/F....ile:Uranus-intern-en [credit: Wikimedia Commons]
Uranus http://www.spacetelescope.org/....static/archives/imag [credit: NASA, ESA, L. Sromovsky and P. Fry (University of Wisconsin), H. Hammel (Space Science Institute), and K. Rages (SETI Institute)]
Uranus storms http://www.keckobservatory.org..../images/made/images/ [credit: Imke de Pater (UC–Berkeley)/Keck Observatory]
Uranus and rings (tilt demonstration) http://en.wikipedia.org/wiki/U....ranus#/media/File:Ur [credit: Hubble Space Telescope - NASA Marshall Space Flight Center]
Uranus with rings and moons http://www.eso.org/public/images/eso0237a/ [credit: ESO]
Miranda http://en.wikipedia.org/wiki/M....oons_of_Uranus#/medi [credit: NASA]
Verona Rupes http://apod.nasa.gov/apod/ap110404.html [credit: NASA]
Neptune’s Interior https://solarsystem.nasa.gov/m....ultimedia/display.cf [credit: Lunar and Planetary Institute]
Neptune clouds http://en.wikipedia.org/wiki/F....ile:Neptune_clouds.j [credit: NASA]
Neptune’s Great Dark Spot http://en.wikipedia.org/wiki/N....eptune#/media/File:N [credit: NASA / Jet Propulsion Lab]
Neptune’s Rings http://www.rolfolsenastrophoto....graphy.com/Astrophot [credit: Rolf Wahl Olsen / NASA/JPL (Voyager 2, NASA Planetary Data System)]
Triton http://en.wikipedia.org/wiki/T....riton_(moon)#/media/ [credit: NASA / Jet Propulsion Lab / U.S. Geological Survey]
Triton flipped http://en.wikipedia.org/wiki/F....ile:PIA01538_Triton_ [credit: NASA/JPL]
Triton Nitrogen Geysers http://en.wikipedia.org/wiki/T....riton_(moon)#/media/ NASA]

In which John teaches you about the Seven Years' War, which may have lasted nine years. Or as many as 23. It was a very confusing war. The Seven Years War was a global war, fought on five continents, which is kind of a lot. John focuses on the war as it happened in the Americas, Asia, and Africa. the "great" European powers were the primary combatants, but they fought just about everywhere. Of course, this being a history course, the outcomes of this war still resonate in our lives today. The Seven Years' war determined the direction of the British Empire and led pretty directly to the subject of Episode 28, the American Revolution.

Chapters:
Introduction: War 00:00
The Seven Years War: When, Where, and Why 1:43
The British vs. the French 2:52
Native American Participation in The Seven Years War 4:04
Fighting in the Caribbean, West Africa, and India 6:16
An Open Letter to Robert Clive 8:30
The Outcome of the Seven Years War 9:47
Credits 11:29

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The Protestant Reformation didn't exactly begin with Martin Luther, and it didn't end with him either. Reformers and monarchs changed the ways that religious and state power were organized throughout the 16th and early 17th centuries. Jean Calvin in France and Switzerland, the Tudors in England, and the Hugenots in France also made major contributions to the Reformation.

Sources
Hunt, Lynn. Making of the West: Peoples and Cultures. Boston: Bedford St. Martins, 2019. Ch. 14.
Kelley, Donald R. The Beginning of Ideology: Consciousness and Society in the French Reformation. New York: Cambridge University Press, 1981.
Lindberg, Carter. The European Reformations. 2nd ed. New York: Wiley Blackwell, 2010.


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:

Eric Prestemon, Sam Buck, Mark Brouwer, Jonathan Zbikowski, Siobhan Sabino, Zach Van Stanley, Bob Doye, Jennifer Killen, Naman Goel, Nathan Catchings, Brandon Westmoreland, dorsey, Indika Siriwardena, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Malcolm Callis, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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#history #crashcourse #europeanhistory

In which Hank does some push-ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP.

Special thanks go to Stafford Fitness (www.staffordfitness.net) for allowing us to shoot the gym scenes in their facilities.

This video uses sounds from Freesound.org

Table of Contents:
1) Cellular Respiration 01:00
2) Adenosine Triphosphate 01:29
3) Glycolysis 4:13
A) Pyruvate Molecules 5:00
B) Anaerobic Respiration/Fermentation 5:33
C) Aerobic Respiration 6:45
4) Krebs Cycle 7:06
A) Acetyl COA 7:38
B) Oxaloacetic Acid 8:21
C) Biolography: Hans Krebs 8:37
D) NAD/FAD 9:48
5) Electron Transport Chain 10:55
6) Check the Math 12:33

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Hank brings us the story of the electron and describes how reality is a kind of music, discussing electron shells and orbitals, electron configurations, ionization and electron affinities, and how all these things can be understood via the periodic table.

Watch this video in Spanish on our Crash Course en Español channel! https://youtu.be/N5apS0tE67c

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
Snobby Scientists 00:43
Great Dane/Bohr Model 01:57
Electrons as Music 04:13
Electron Shells and Orbitals 04:44
Electron Configurations 05:54
Ionization and Electron Affinities 08:17
Periodic Table 10:18

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In which John Green explores F. Scott Fitzgerald's novel of the Jazz Age, The Great Gatsby. John introduces you to Nick Carraway, Jay Gatsby, Daisy and Tom Buchanan, and the other characters in the novel, and tries to look beyond the surface story to figure out what this thing is ABOUT. Set in the 1920s against a conflicted backdrop of prohibition and excess, The Great Gatsby takes a close look at the American Dream as it existed in Fitzgerald's time. It turns out, it had a lot to do with money and status, and it still does today. John will cover the rich symbolism of the novel, from the distant green light to the pale gold of wealth and decay. Also, Paris Hilton drops by.

Turn on the captions. You'll like it.

Consider supporting local bookstores by purchasing your books through our Bookshop affiliate link https://bookshop.org/shop/complexly or at your local bookseller.

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