Let's learn how to sweep the floor with a broom!

We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you'd like us to cover any additional topics, please let us know. For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!

Let's learn how to set the table!
We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you'd like us to cover any additional topics, please let us know. For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!

Learn what topics will be covered in Financial Literacy and how the unit will be structured!
We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you’d like us to cover any additional topics, please let us know.
For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!

Learn which topics will be covered in the Life Skills course!
We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you’d like us to cover any additional topics, please let us know.
For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!

Today we’re going to explain how exchangers...exchange heat. We’ll look at concentric tubes, finned tubes, plate heat exchangers, and shell-and-tube heat exchangers. And we’ll look at some equations to help us sort through heat transfer and decide what heat exchangers are best suited for our designs.

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

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RESOURCES:
https://www.northeastern.edu/l....andherr/stem-comics/
https://www.britannica.com/tec....hnology/heat-exchang
http://www.enggcyclopedia.com/....2012/03/finned-tube-
https://www.maxxtec.com/en/pro....duct/automatisch-aus
https://www.wcrhx.com/plate-heat-exchangers
http://www.thermopedia.com/content/1121/
https://www.britannica.com/science/heat-capacity
http://www.lytron.com/Tools-an....d-Technical-Referenc
http://www.sprawls.org/ppmi2/XRAYHEAT/
http://capstone.byu.edu/previo....us-projects/test-sta
Çengel, Yunus A., and Michael A. Boles. Thermodynamics: An Engineering Approach. 8th ed., McGraw-Hill Education.

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Mark Brouwer, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Divonne Holmes à Court. Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Mayumi Maeda, Kathy & Tim Philip, Jirat, Eric Kitchen, Ian Dundore, Chris Peters
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Sometimes, diagnosing patients is pretty easy, but other times... not so much. Luckily, in a medical setting we have tools that can help us figure out what's wrong with patients, and how to help them. In this episode of Crash Course Outbreak Science, we'll use clinical symptomatology and diagnostic testing to collect data and test our hypotheses about what may be wrong with some hypothetical patients, and use what we learn to help our patients get better and stop the disease from spreading to more people.

This episode of Crash Course Outbreak Science was produced by Complexly in partnership with Operation Outbreak and the Sabeti Lab at the Broad Institute of MIT and Harvard—with generous support from the Gordon and Betty Moore Foundation.

Sources:
Chapters 5 and 6 from the Operation Outbreak textbook (as provided by Todd Brown)
https://www.sciencedirect.com/....science/article/pii/

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So we ended the last episode nearing the close of the 1980s and Nintendo had become the dominant player in the home console market, but Sega, originally a slot machine game company during World War 2, was looking to get its own console into players’ homes. Sega’s first console wouldn't see much success, but with the introduction of Sonic the Hedgehog on the technologically superior Sega Genesis, Sega established itself as the new best thing in video games. This would be the start of a new round of console wars and the era that brought us more mature games including fighting games, 1st person shooters, and lots of sports games. This maturation of games also led us to the software ratings system by the ESRB. But Sega and Nintendo would not be the alone in the market for long, next week we’re going to talk about the entrance of technology monolith Sony and their introduction of the Playstation.

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In the late 1950s and the early to mid-1960s, a Muslim minister named Malcolm X rose to prominence in the United States during the struggle for Civil Rights. Malcolm X was a member of and spokesperson for the Nation of Islam, and he was a vocal advocate for Black empowerment. His views differed significantly from a lot of the well-known Civil Rights activists of the day, and his views evolved during his ministry. Today, we’ll learn about Malcolm X’s origins, his work with the Nation of Islam, his break from that organization, and his eventual assassination.

Clint's book, How the Word is Passed is available now! https://bookshop.org/books/how....-the-word-is-passed-

VIDEO SOURCES
Peniel E. Joseph, Waiting ’ Til the Midnight Hour: A Narrative History of Black Power in America (New York: Henry Holt, 2006).
Malcolm X, The Autobiography of Malcolm X, With the assistance of Alex Haley (New York: Ballantine, 1992).
Manning Marable, Malcolm X: A Life of Reinvention (New York: Viking Press, 2011).
Ilyasah Shabazz, Growing up X: A Memoir by the Mother of Malcolm X (Penguin, 2003).

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The European Renaissance may have started in Florence, but it pretty quickly moved out of Italy and spread the art, architecture, literature, and humanism across Europe to places like France, Spain, England, and the Low Countries.

SOURCES:
Hunt, Lynn et al. The Making of the West: Peoples and Cultures, 6th ed. Boston: Bedford St. Martins, 2019.
Jardine, Lisa. Erasmus, Man of Letters. Princeton: Princeton University Press, 1993.
Donald R. Kelley, Renaissance Humanism. Boston: Twayne, 1991.

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#crashcourse #history #europeanhistory

It can be daunting to move from the abstract idea stage to the realm of bank accounts, taxes, and liability. Sometimes, it can feel like you’re making arbitrary decisions, but we’re going to wade through the legalese together. Things are about to get legit.

Click here for the chart!
https://www.patreon.com/posts/crash-course-29734204?utm_medium=post_notification_email&utm_source=post_link&utm_campaign=patron_engagement
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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, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, David Noe, Shawn Arnold, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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Apple Devices: https://apps.apple.com/us/app/....crash-course-watch-a
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Today we're so excited to announce the free Crash Course App! (Available now for Apple and Android phones and tablets.) The app is a portal to find all of our thousands of videos and a platform to help you review what you've learned in those videos. At the heart of the app are decks which are essentially really beautiful flashcards that transform into multiple choice questions in quiz mode. The app currently supports decks for all episodes of Anatomy & Physiology, Chemistry, and Organic Chemistry, and we'll be continually adding more content. So please download the app and let us know what you think!

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, William McGraw, Siobhan Sabino, Jason Saslow, Jennifer Killen, Jon & Jennifer Smith, DAVID NOE, Jonathan Zbikowski, Shawn Arnold, Trevin Beattie, Matthew Curls, Rachel Bright, Khaled El Shalakany, Ian Dundore, Kenneth F Penttinen, Eric Koslow, TimothyJ Kwist, Indika Siriwardena, Caleb Weeks, HAIXIANGN/A LIU, Nathan Taylor, Andrei Krishkevich, Sam Ferguson, Brian Thomas Gossett, SR Foxley, Tom Trval, Justin Zingsheim, Brandon Westmoreland, dorsey, Jessica Wode, Nathan Catchings, Yasenia Cruz, Jirat
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How much should you get paid for your job? Well, that depends on a lot of factors. Your skill set, the demand for the skills you have, and what other people are getting paid around you all factor in. In a lot of ways, labor markets work on supply and demand, just like many of the markets we talk about in Crash Course Econ. But, again, there aren't a lot of pure, true markets in the world. There are all kinds of oddities and regulations that change the way labor markets work. One common (and kind of controversial one) is the minimum wage. The minimum wage has potential upsides and downsides, and we'll take a look at the various arguments for an against it.

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In which John Green teaches you about nonviolence and peace movements in the 20th century. What is nonviolence? What is a peace movement? Well. traditionally, humans often resort to violence when they come into conflict. In the 20th century, it became much more common for people to enact change by means of nonviolence, and there was a common thread of connection between many of the most notable advocates of peaceful change. Crash Course will take you from Gandhi to Gregg to Bayard Rustin to Martin Luther King, Jr, to the Cold War to Arab Spring along a path of nonviolent resistance and peaceful change. It's pretty great.

Citation 1: King, Martin Luther, Jr., Farewell Statement for All India Radio, 9 March 1959.

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Computers and computing have changed a lot over the History of Science but ESPECIALLY over the last 100 years. In this episode of Crash Course History of Science, we have a look at that history around World War Two and how that conflict forced changes in computing.


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In which John Green teaches you about railroads and some of the ways they changed the world, and how they were a sort of microcosm for the Industrial Revolution as a whole. Prior to the invention of steam-powered railroads, pretty much all locomotion had been muscle-powered. You either walked where you wanted to go or rode on an animal to get where you were going. The railroad changed human perception of time and space, making long-distance travel much faster and easier. Railroads also changed habits, including increasing reading. People needed some sort of distraction to ensure they didn't have to talk to other people on the train. Like any new technology, railroads also scared people. All kinds of fears surrounded rail travel, but over time, people got over them. And the quality of boiler manufacturing improved, so the trains exploded less often, which also made people feel safer.

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You probably know some of the signs of industrialization in the nineteenth century: Trains connected cities, symbolizing progress. But they also brought about the destruction of rural lands, divisions between social classes, and rapid urbanization. But there's a whole lot more to talk about in this episode of History of Science!


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Mark Brouwer, Erika & Alexa Saur Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Nathan Taylor, Divonne Holmes à Court, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Mayumi Maeda, Kathy & Tim Philip, Jirat, Eric Kitchen, Ian Dundore, Chris Peters
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Our unit on the philosophy of religion and the existence of god continues with Thomas Aquinas. Today, we consider his first four arguments: the cosmological arguments.

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Images and video via VideoBlocks or Wikimedia Commons, licensed under Creative Commons by 4.0: https://creativecommons.org/licenses/by/4.0/

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Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Crash Course Philosophy is sponsored by Squarespace.
http://www.squarespace.com/crashcourse

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Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs.

Table of Contents
1) Species 0:30
2) Hybrids 1:52
3) Reproductive Isolation 2:48
a) Post-Zygotic 3:31
b) Pre-Zygotic 3:51
4) Allopatric Speciation 4:23
5) Sympatric Speciation 6:03
6) Biolography 6:32
7) Dogs 8:37

This video contains the following sounds from Freesound.org:
"bird tweet.aif" by tigersound
"ForestBirds.wav" by HerbertBoland
"morning_in_the_forest_2007_04_15.wav" by reinsamba
"AMBIENT LOOP - Perfectly Clear - Wilderness Hillside - FILTERED.mp3" by Arctura
"oceanwavescrushing.wav" by Luftrum

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LIGHT! Let's talk about it today. Sunlight, moonlight, torchlight, and flashlight. They all come from different places, but they’re the very same thing: light! It’s what makes it possible for us to see the world around us, so it’s worth a close, hard look. For instance, how does light travel? When you flip that switch in the bathroom to brush your teeth, how does light move from the light bulb, to the mirror, and into your eyes?

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Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

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In which John Green teaches you about the economic malaise that beset the United States in the 1970s. A sort of perfect storm of events, it combined the continuing decline of America's manufacturing base with the oil shocks of 1973 and 1979 and brought about a stagnant economy, paired with high inflation. Economists with a flair for neologisms and portmanteau words called this "stagflation," and it made people miserable. Two presidential administrations were scuttled at least in part by these economic woes; both Gerald Ford and Jimmy Carter are considered failed presidents for many reasons, but largely because of an inability to improve the economy. (hint: In reality, no one person can materially change something as big as the world economy, even if they are president, but one person sure can make a handy scapegoat!) So, by and large, the 70s were a pretty terrible time in America economically, but at least the decade gave us Mr. Green.

Crash Course is no longer available on DVD, sorry to disappoint.

Chapters:
Introduction: The 1970s 00:00
Economics in the 1970s 1:02
The End of the Gold Standard 2:32
The Decline of American Manufacturing 2:54
Oil Shocks 4:12
Stagflation and the Misery Index 5:16
Gerald Ford's Presidency 5:49
Jimmy Carter's Presidency 6:52
Mystery Document 7:15
Nuclear Power 8:51
Carter's Foreign Policy 9:17
The Economic Crisis of the 1970s 11:18
Credits 12:44
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