This math trick allows you to work out the square root of any number - NOT JUST PERFECT SQUARES - instantly. With decimals. With ease. Can you work faster than a calculator? With this tecmath trick you just might! The math shortcut magic is back!

To donate to the tecmath channel:https://paypal.me/tecmath

To support tecmath on Patreon: https://www.patreon.com/tecmath

To buy tecmath mechandise: https://teespring.com/stores/tecmath-store

Mother's Day
by Anne Rockwell
Illustrated by Lizzy Rockwell

Click here to purchase Mother's Day: https://www.amazon.com/Mothers....-Day-Anne-Rockwell/d

Each child in Mrs. Madoff's class knows just how to celebrate Mother's Day. Jessica and her mom go hiking together. Sam helps pick out a new kitchen table. Sarah and her dad take Grandma to her favorite restaurant. And when a surprise visitor comes to class, the kids learn how to make a handmade gift that's straight from the heart. Here's a loving tribute to all the mothers, grandmothers, and mothers-to-be everywhere, perfect for sharing any day of the year.

How to Babysit a Grandpa
by Jean Reagan
Illustrated by Lee Wildish
Read by Let's Read Stories

A New York Times bestselling HOW TO picture book that celebrates the connection between grandpas and grandchildren!

A New York Times bestselling picture book--from the creators of the hilarious HOW TO... series--about a child spending time with his grandpa. Written in a how-to style, the narrator gives important tips for "babysitting" a grandpa, including what to eat for snack (anything dipped in ketchup, ice cream topped with cookies, cookies topped with ice cream) what to do on a walk (find lizards and dandelion puffs, be on the lookout for puddles and sprinklers), and how to play with a grandpa (build a pirate cave, put on a scary play).

Filled with humor, energy, and warmth, this is a great gift for or from a grandparent, and perfect for lap reading when Grandpa comes to visit!

Praise for the HOW TO . . . series:

“A silly take on role reversal.” –Kirkus Reviews (How to Babysit a Grandma)

“Laugh-out-loud funny. . .” –Kirkus Reviews (How to Raise a Mom)

“. . . laugh-out-loud scenes and funny hidden details.” –Kirkus Reviews (How to Babysit a Grandpa)

“Touches of humor in each of the digitally rendered illustrations.” –Kirkus Reviews (How to Surprise a Dad)

The fun doesn't stop! Check out more HOW TO... picture books:

How to babysit a Grandma
How to Catch a Santa
How to Get Your Teacher Ready
How to Raise a Mom
How to Surprise a Dad

Get ready for father's day with How to Babysit a Grandpa! Stories read aloud can help your child develop their literacy skill and build confidence. Read along or listen as supplemental reading to your bedtime routine. Listening to stories read aloud is proven to help your toddler or kindergartener speak, recognize words, and improve in school. Learn english with the perfect silly story from the how to collection. Thanks for watching!

Click here to purchase How to Babysit a Grandpa: https://www.amazon.com/How-Bab....ysit-Grandpa-Jean-Re

What Do You Do With an Idea
by Kobi Yamada
Illustrated by Mae Besom
Read by Let's Read Stories

A New York Times Best Seller and award-winning book, What Do You Do With an Idea? is for anyone who's ever had a big idea.

This is the story of one brilliant idea and the child who helps to bring it into the world. As the child's confidence grows, so does the idea itself. And then, one day, something amazing happens. This is a story for anyone, at any age, who's ever had an idea that seemed a little too big, too odd, too difficult. It's a story to inspire you to welcome that idea, to give it some space to grow, and to see what happens next. Because your idea isn't going anywhere. In fact, it's just getting started.

Praise for What Do You Do With an Idea?

National best seller, appearing in the New York Times, Wall Street Journal, USA Today, and Publishers Weekly.

Gold medal winner of the Independent Publishers Award, the Washington State Book Award, and the Moonbeam Children's Book Award.

"What makes this message so unique is the simple but beautiful way it's delivered, in narrative and illustration, through the eyes and voice of an innocent and hopeful child. What Do You Do With An Idea? is a spectacular book for all ages and is a wonderful treasure for any home or school library."—The Children's Book Review


"Despite the fact that it's Yamada's first time writing a children's book, it's had breakout success, selling over 300,000 copies since its publication date of January 2014."—Publisher's Weekly

Kids Books like What Do you Do With an Idea read aloud are the perfect stories and experiences to build children's imagination and creativity. Help develop confidence in your toddler, kindergartener, 1st or 2nd grader with this story to listen to as supplemental reading or to read along with. Hearing children read stories can introduce kids to sentence structure and literacy in a safe and supportive environment. Thank you for watching!

Click here to purchase What Do You Do With an Idea: https://www.amazon.com/What-Do....-You-Idea/dp/1938298

We try not to get into too much great man history here at Crash Course, but we have to admit: Napoleon Bonaparte is a pretty big deal. Join us as we track the rise, further rise, fall, rise, fall, mortal fall, and posthumous rise of Napoleon. This guy changed France, he changed Europe, and in a lot of ways he changed the world.

Sources
-Al-Jabarti, Abd al-Rahman, Napoleon in Egypt: Al-Jabarti’s Chronicle of the French Occupation of 1798, Shmuel Moreh, ed. Princeton: Markus Wiener, 1993.
-Bell, David A. Napoleon: A Concise Biography. New York: Oxford University Press, 2015.
-Hunt, Lynn et al. Making of the West: Peoples and Cultures. Boston: Bedford St. Martin’s, 2019.
-Sperber, Jonathan. Revolutionary Europe, 1780-1850. 2nd ed. New York: 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, Caleb Weeks, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
--

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In 1789, the French Monarchy's habit of supporting democratic popular revolutions in North America backfired. Today, we're talking about the French Revolution. Across the world, people were rising up to throw off monarchies, and Louis didn't see the writing on the wall until it was too late. Today we'll talk about how the French Revolution unfolded, and what (if anything) was really accomplished. You'll learn about stuff like the National Assembly, the Tennis Court Oath, the Declaration of the Rights of Man and the Citizen, the guillotine, Robespierre, and a bunch of other kind of unbelievable details.

Hatian Revolutions - CC World History: https://youtu.be/5A_o-nU5s2U

Sources
Hunt, Lynn et al. Making of the West: Peoples and Cultures. 6th ed. Boston: Bedford St. Martin’s, 2019.


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, Caleb Weeks, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
--

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#crashcourse #history #europeanhistory

Gamma-ray bursts are not only incredible to study, but their discovery has an epic story all its own. Today Phil takes you through some Cold War history and then dives into what we know. Bursts come in two rough varieties: Long and short. Long ones are from hypernovae, massive stars exploding, sending out twin beams of matter and energy. Short ones are from merging neutron stars. Both kinds are so energetic they are visible for billions of light years, and both are also the birth announcements of black holes.

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

--
Chapters:
Introduction 00:00
Gamma Ray Bursts and the Cold War 00:45
Where Do Gamma Ray Bursts Come From? 3:26
What Causes Gamma Ray Bursts? 6:11
Kinds of Gamma Ray Bursts: Long and Short 8:35
What Would Happen if a Gamma Ray Burst Hit Earth? 10:24
Review 12:53
--

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

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

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--

PHOTOS/VIDEOS
Nuclear Bomb Images via Wikimedia Commons:
Operation Upshot Knothole https://en.wikipedia.org/wiki/....File:Operation_Upsho
Ivy Mike https://en.wikipedia.org/wiki/File:IvyMike2.jpg
Castle Bravo https://en.wikipedia.org/wiki/....Castle_Bravo#/media/
Upshot Knothole GRABLE https://en.wikipedia.org/wiki/....File:Upshot-Knothole
President Kennedy signs the Limited Nuclear Test Ban Treaty https://en.wikipedia.org/wiki/....Partial_Nuclear_Test [credit: Wikimedia Commons]
Vela http://www.losangeles.af.mil/s....hared/media/photodb/ [credit: USAF]
The Crab Nebula https://www.nasa.gov/multimedi....a/imagegallery/image [credit: NASA, ESA, J. Hester, A. Loll (ASU)]
Solar Flare http://www.nasa.gov/mission_pa....ges/sunearth/news/Ne [credit: NASA/SDO/AIA]
Gamma Ray Burst http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=2 [credit: NASA/Goddard Space Flight Center Conceptual Image Lab]
Four ALMA antennas on the Chajnantor plain http://www.eso.org/public/images/alma-jfs-2010-10/ [credit: ESO/José Francisco Salgado (josefrancisco.org)]
Gamma Ray Burst 970228 https://www.spacetelescope.org/images/opo9730b/ [credit: Andrew Fruchter (STScI), Elena Pian (ITSRE-CNR), and NASA/ESA]
HST/STIS Image of the optical afterglow of w:GRB 970508 https://en.wikipedia.org/wiki/....GRB_970508#/media/Fi [credit: STScI/NASA]
Black Holes: Monsters in Space http://www.nasa.gov/mission_pa....ges/nustar/multimedi [credit: NASA/JPL-Caltech]
Naked-Eye Gamma-ray Burst Model for GRB 080319B http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=1 [credit: NASA/Swift/Cruz deWilde]
2008 GRB http://www.nasa.gov/images/con....tent/218810main_grb_ [credit: NASA/Swift/Stefan Immler, et al.]
GRB Data http://www.nasa.gov/images/con....tent/134782main_GRB_ [credit: NASA]
Imagine two massive stars born together as a binary star http://chandra.harvard.edu/pho....to/2005/j0806/wd_lg. [credit: NASA/GSFC/D. Berry]
Colliding Binary Neutron stars http://chandra.harvard.edu/res....ources/animations/ne [credit: NASA/D.Berry]
Black Hole Devours a Neutron Star http://chandra.harvard.edu/res....ources/animations/ne [credit: NASA/D.Berry]
Eta Carinae https://en.wikipedia.org/wiki/....Eta_Carinae#/media/F [credit: Jon Morse (University of Colorado) & NASA Hubble Space Telescope]
WR 104: A Pinwheel Star System http://apod.nasa.gov/apod/ap140603.html [credit: P. Tuthill (U. Sydney) & J. Monnier (U. Michigan), Keck Obs., ARC, NSF]
Swift HD Beauty Shot http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=1 [credit: NASA/Goddard Space Flight Center]
Swift's 500 Gamma-ray Bursts http://svs.gsfc.nasa.gov/cgi-b....in/details.cgi?aid=1 [credit: NASA/Goddard Space Flight Center]

In which John Green kicks off Crash Course US History! Why, you may ask, are we covering US History, and not more World History, or the history of some other country, or the very specific history of your home region? Well, the reasons are many. But, like it or not, the United States has probably meddled in your country to some degree in the last 236 years or so, and that means US History is relevant all over the world. In episode 1, John talks about the Native Americans who lived in what is now the US prior to European contact. This is a history class, not archaeology, so we're mainly going to cover written history. That means we start with the first sustained European settlement in North America, and that means the Spanish. The Spanish have a long history with the natives of the Americas, and not all of it was positive. The Spanish were definitely not peaceful colonizers, but what colonizers are peaceful? Colonization pretty much always results in an antagonistic relationship with the locals. John teaches you about early Spanish explorers, settlements, and what happened when they didn't get along with the indigenous people. The story of their rocky relations has been called the Black Legend. Which is not a positive legend.

Chapters:
Introduction to Crash Course US History 00:00
Native North Americans 0:45
Were Native North Americans 'Primitive?' 1:08
Native North American Populations 1:52
Life in Pre-Columbian America 3:06
Class and Society in Native American Tribes 4:25
Spanish Colonization in North America 5:32
Mystery Document 7:58
The Problem with the Black Legend 9:31
Credits 10:46

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

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CC Kids: http://www.youtube.com/crashcoursekids

In which John Green discusses the strange and mutually beneficial relationship between a republic, the city-state of Venice, and an Empire, the Ottomans--and how studying history can help you to be a better boyfriend/girlfriend. Together, the Ottoman Empire and Venice grew wealthy by facilitating trade: The Venetians had ships and nautical expertise; the Ottomans had access to many of the most valuable goods in the world, especially pepper and grain. Working together across cultural and religious divides, they both become very rich, and the Ottomans became one of the most powerful political entities in the world. We also discuss how economic realities can overcome religious and political differences (in this case between Muslims and Christians), the doges of Venice, the sultans of the Ottoman empire, the janissaries, and the so-called slave aristocracy of the Ottoman Empire, and how money and knowledge from the Islamic world helped fuel and fund the European Renaissance. Also, there's a They Might Be Giants joke.

Chapters:
Introduction 00:00
Venice 1:02
Venetian Trade 1:26
Piazza San Marco 2:48
Venetian Imports, Exports, & Economy 3:45
Venetian Government 4:25
The Ottomans 4:46
Ottoman Sultans 5:21
An Open Letter to Ottoman Eunuchs 7:15
The Ottomans' and Venetians' Relationship 8:12
Credits 9:38
--

If you really want to read about Ottoman eunuchs (warning: it's explicit), here you go: http://en.wikipedia.org/wiki/Eunuch#Ottoman_Empire
--


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

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In which you are introduced to the life and accomplishments of Alexander the Great, his empire, his horse Bucephalus, the empires that came after him, and the idea of Greatness. Is greatness a question of accomplishment, of impact, or are people great because the rest of us decide they're great?

Also discussed are Kim Kardashian and the Situation, gender bias in history, Catherine the Great's death (not via horse love), the ardent love other generals--from Pompey the Great to Napoleon--had for Alexander, and a bit of Persian history.

Chapters:
Introduction 00:00
What Makes Historical Figures So 'Great?' 1:19
The Life of Alexander the Great 2:01
Death & Legacy of Alexander the Great 4:28
The Legend of Alexander the Great 6:11
An Open Letter to the Ladies 7:29
What Makes Alexander So Great? 8:34
Credits 10:29

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

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CC Kids: http://www.youtube.com/crashcoursekids

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/text....s/the-narrative-of-t
Others resisted the violence of slavery through open rebellion, like Nat Turner: https://www.commonlit.org/text....s/nat-turner-s-slave
Abolitionists and free slaves alike had to fight against unfair laws such as the Fugitive Slave Act: https://www.commonlit.org/text....s/fugitive-slave-act

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

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

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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/text....s/excerpt-from-walde
Ralph Waldo Emerson promoted transcendental values as well in his essay “Self-Reliance”: https://www.commonlit.org/text....s/excerpt-from-self-

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

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

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In which John Green teaches you about the Cold War as it unfolded in Asia. As John pointed out last week, the Cold War was occasionally hot, and a lot of that heat was generated in Asia. This is starting to sound weird with the hot/cold thing, so let's just say that the United States' struggle against communist expansion escalated to a full-blown, boots-on-the-ground war in Korea and Vietnam. In both of these cases, the United States sent soldiers to intervene in civil wars that it looked like communists might win. That's a bit of a simplification, but John will explain it all to you.

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. While The Vietnam War was happening very far away from home, it had a major impact on American soldiers and civilians: https://www.commonlit.org/text....s/introduction-to-th

Americans with televisions had the war broadcasted right into their living rooms, leading to an immense Vietnam War resistance effort: https://www.commonlit.org/text....s/resistance-to-the-

Want to learn more about the Cold War? Check out these other videos from Crash Course:
USA vs USSR Fight! The Cold War: Crash Course World History #39:
https://www.youtube.com/watch?v=y9HjvHZfCUI

The Cold War: Crash Course US History #37:
https://www.youtube.com/watch?v=9C72ISMF_D0

George HW Bush and the End of the Cold War: Crash Course US History #44:
https://www.youtube.com/watch?v=L-K19rVDxoM

The Cold War and Consumerism: Crash Course Computer Science #24:
https://www.youtube.com/watch?v=m8i38Yq1wX4

Post-War Rebuilding and the Cold War: Crash Course European History #41:
https://www.youtube.com/watch?v=-rkIqtV07HE

Chapters:
Introduction: The Cold War in Asia 00:00
The Korean War 0:28
Eisenhower's Election 3:05
Cost of the Korean War 3:20
Mystery Document 4:18
Ho Chi Minh 5:19
American Involvement in Vietnam 5:55
The Gulf of Tonkin Incident 7:02
Operation Rolling Thunder 8:13
Fighting in Vietnam 8:41
Public Opinion and the Vietnam War 9:38
Nixon's Plan to Leave Vietnam 10:34
Anti-War Sentiments 11:19
The End of the Vietnam War 11:52
Credits 13:09
--
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

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In which John Green teaches you about the roots of the American Revolution. The Revolution did not start on July 4, 1776. The Revolutionary War didn't start on July 4 either. (as you remember, I'm sure, the Revolution and the Revolutionary War are not the same thing) The shooting started on April 19, 1775, at Lexington and/or Concord, MA. Or the shooting started with the Boston Massacre on March 5, 1770. At least we can pin down the Declaration of Independence to July 4, 1776. Except that most of the signers didn't sign until August 2. The point is that the beginning of the Revolution is very complex and hard to pin down. John will lead you through the bramble of taxes, royal decrees, acts of parliament, colonial responses, and various congresses. We'll start with the end of the Seven Years' War, and the bill that the British ran up fighting the war. This led to taxes on colonial trade, which led to colonists demanding representation, which led to revolution. It all seems very complicated, but Crash Course will get you through it in about 12 minutes.

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. Many events paved the road to American Independence from England: https://www.commonlit.org/text....s/the-road-to-americ
England’s taxation on American colonists led to the famous 1773 Boston Tea Party: https://www.commonlit.org/text....s/give-me-liberty-or
And in 1775, Patrick Henry delivered a speech that rallied Virginias to form a militia against Britain: https://www.commonlit.org/text....s/a-participant-s-fi

Chapters:
Introduction: The American Revolution 00:00
The End of the Seven Years War 0:36
Taxation in the American Colonies 1:47
The Stamp Act 2:22
The Townshend Acts 3:31
The Boston Massacre 4:22
The Boston Tea Party 4:54
The Intolerable Acts 5:47
The First Continental Congress 6:14
American Revolution =/= American War for Independence 7:35
Early Battles of the American Revolutionary War 7:58
Mystery Document 8:45
Thomas Paine's Common Sense 10:09
Credits 11:47

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

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CC Kids: http://www.youtube.com/crashcoursekids

We love the internet! It's a wealth of information where we can learn about just about anything, but it's also kind of a pit of information that can be false or misleading. So, we're partnering with Mediawise and the Stanford History Education Group to make this series on Navigating Digital Information. Let's learn the facts about facts!

Special thanks to our partners from MediaWise who helped create this series:
The Poynter Institute
The Stanford History Education Group (sheg.stanford.edu)

Follow MediaWise and their fact-checking work across social:
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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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So, during times of inflation or deflation, why doesn't the government just set prices? It sounds reasonable, but price ceilings or floors just don't work. Adriene and Jacob explain why. Subsidies, however, are a little different, and sometimes they even work. We'll also explain that. Today you'll learn about stuff like price controls, deadweight loss, subsidies, and efficiency.

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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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In which John covers the long, long history of ancient Egypt, including the Old, Middle, and New Kingdoms, and even a couple of intermediate periods. Learn about mummies, pharaohs, pyramids, and the Nile with John Green.

Chapters:
Introduction: Ancient Egypt 00:00
How The Nile Shaped Egypt 1:57
The Old Kingdom of Egypt 4:02
The Middle Kingdom of Egypt 6:29
The New Kingdom of Egypt 7:54
An Open Letter to King Tut 9:18
Credits 11:14

Resources:
Mummies!: https://goo.gl/BvAdmj
Pyramids!: http://goo.gl/aCov2j

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You're already learning on YouTube — why not get college credit for it? https://link.gostudyhall.com/my1

Paying for college is stressful and there's a lot of research we need to do. So we want to be methodical and patient, and make sure we know what all of our options are. So, in this episode, Erica walks us through how to know our options, what steps to take to get the funding you need to be successful in college.

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Now you can take top-tier college courses with Study Hall! Study Hall videos are available to watch at no cost, and first-year courses are $25 to sign-up and begin coursework. Once you're satisfied with your grade, receive credit for only $400. Sign up at https://link.gostudyhall.com/my1

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Learn more about Federal Student Aid: https://studentaid.gov/h/understand-aid
_______________________________________________
Chapters:
0:00 - Introduction
0:36 - Understanding costs
2:37 - Finding financial aid
8:41 - Different types of schools
_______________________________________________

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Dave Freeman, Hasan Jamal, DL Singfield, Lisa Owen, Jeremy Mysliwiec, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Erin Switzer, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel Stevens, Vincent, Michael Wang, Stacey Gillespie (Stacey J), Alexis B, Burt Humburg, Aziz Y, Shanta, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Rachel Creager, Breanna Bosso, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, 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, ClareG, Rizwan Kassim, Alex Hackman, Jirat, Katie Dean, Avi Yashchin, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks
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#CrashCourse #HowtoCollege #StudyHall
***

The world is a big place and cinema isn't limited to just the U.S. and Europe. There are a lot of vibrant and influential film movements and cultures from all over the world. In this episode of Crash Course Film History, Craig talks to us a little about some of the big moments in Asian cinema; from Japan, to China, to India.

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

Want to know more about Craig?
https://www.youtube.com/user/wheezywaiter

The Latest from PBS Digital Studios: https://www.youtube.com/playli....st?list=PL1mtdjDVOoO

***

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Models are great, except they're also usually inaccurate. In this episode of Crash Course Chemistry, Hank discusses why we need models in the world and how we can learn from them... even when they're almost completely wrong. Plus, Lewis Structures!

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
Models 0:06
Linus Pauling & The Bonding Model 9:16
Lewis Dot Structures 4:27
Ionic Bonds 5:30
Covalent Bonds 6:10
Double Bonds 7:17
Triple Bonds 8:14

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Geometric probabilities, and probabilities in general, allow us to guess how long we'll have to wait for something to happen. Today, we'll discuss how they can be used to figure out how many Bertie Bott's Every Flavour Beans you could eat before getting the dreaded vomit flavored bean, and how they can help us make decisions when there is a little uncertainty - like getting a Pikachu in a pack of Pokémon Cards! We'll finish off this unit on probability by taking a closer look at the Birthday Paradox (or birthday problem) which asks the question: how many people do you think need to be in a room for there to likely be a shared birthday? (It's likely much fewer than you would expect!)

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

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Mark Brouwer, 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, Evren Türkmenoğlu, D.A. Noe, Shawn Arnold, mark austin, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, Cody Carpenter, Annamaria Herrera, William McGraw, Bader AlGhamdi, Vaso, Melissa Briski, Joey Quek, Andrei Krishkevich, Rachel Bright, Alex S, Mayumi Maeda, Kathy & Tim Philip, Montather, Jirat, Eric Kitchen, Moritz Schmidt, Ian Dundore, Chris Peters, Sandra Aft, Steve Marshall
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COLLISIONS! A big part of physics is understanding collisions and how they're not all the same. Mass, momentum, and many other things dictate how collisions can be unique. In this episode of Crash Course Physics, Shini sits down to lead us through an understanding of collisions. Plus, she brings along our old friend Sir Isaac Newton.

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

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How can Daenerys Targaryen help us understand personal identity? Find out as Hank continues our exploration of personal identity, learning about Hume’s bundle theory and Parfit’s theory of survival through psychological connectedness.

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

Crash Course Philosophy is sponsored by Squarespace.
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On today's episode of Crash Course Anatomy & Physiology, Hank continues our exploration of tissues, with an introduction to your connective tissues.

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

Chapters:
Introduction 00:00
What is Connective Tissue? 2:14
Four Classes of Connective Tissue 2:34
What Makes Connective Tissues Different From Other Tissue Types? 3:25
The Extracellular Matrix 4:07
Types of Fibers 5:34
Connective Tissue Cells 6:34
How Marfan Syndrome Affects Connective Tissue 8:31
Review 9:37
Credits 10:08

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The first step in honing your new study skills is to take better notes. This week Thomas will tell you everything you need to know to come to class prepared and find a note-taking system that will help you retain and review like a champ.

Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creative....cloud/catalog/deskto

Resources:

Study on computer vs. paper note-taking: http://journals.sagepub.com/do....i/pdf/10.1177/095679
Evernote: https://evernote.com/
OneNote: https://www.onenote.com/
Dropbox Paper: https://paper.dropbox.com
Coggle (mind-mapping tool): https://coggle.it/


***

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, Les Aker, Bob Kunz, Mark Austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, D.A. Noe, Shawn Arnold, Eric Prestemon, Malcolm Callis, Advait Shinde, Rachel Bright, Khaled El Shalakany, Ian Dundore, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Indika Siriwardena, Caleb Weeks, Kathrin Janßen, Nathan Taylor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Cami Wilson, Moritz Schmidt, Jessica Wode, Daniel Baulig, Jirat
--

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