Search Results: " people colonize earth?"

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01:05 Popular
Sesame Street: Letter M (Letter of the Day)

918 views / 0 likes - added 9 years ago

The Letter M is a marvelous letter. Mhhmm...maybe the letter M should hang in The Metropolitan Museum so that people can marvel at its many qualities. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameS
15:46
Sesame Street: Let's Be Friends

572 views / 0 likes - added 9 years ago

Do you ever think: "Hey! I wish I had someone to talk to and make jokes with and play tag with?" You do? Well that's what a friend is! Friends are some of the coolest people on the planet. They make you laugh and keep you company and help you learn all ki
01:48
Sesame Street: Viola Davis and Elmo Throw a Fiesta!

575 views / 0 likes - added 9 years ago

Viola Davis and Elmo are playing the game "What does it mean?" Do you know what the word fiesta means? We'll give you some clues. When you're at a fiesta you'll see balloons and confetti and streamers, you'll hear music and people will be dancing and havi
04:06 Popular
Sesame Street: Socktober Telethon with Grover and Kid President!

817 views / 2 likes - added 9 years ago

Grover and Kid President are teaming up for Sock-cess! To help their friends in need, Grover and Kid President are hosting a Telethon to collect socks for the homeless to keep their feet warm in the winter. You can help too! Helping is as easy as bringing
03:08 Popular
Sesame Street: Five Words to Say More Often with Grover and Kid President

730 views / 0 likes - added 9 years ago

Kid President and Grover are here to give you Five Words You Should Say More Often! Isn't that so generous? They are selflessly giving you these five words. Whats that? You want to pay it forward? Awesome! Well, get involved in Socktober. It's as easy as
02:15
Sesame Street: What is Popular? Elmo and Andy Cohen Decide.

474 views / 0 likes - added 9 years ago

The world popular means when something is really liked by a lot of people. Can you think of some things that are popular? Pizza is popular, and football is popular, and The Real Houseplants of Atlanta sure is popular. Subscribe to the Sesame Street Channe
01:05 Popular
Sesame Street: Letter P (Letter of the Day)

1,008 views / 0 likes - added 9 years ago

Oh P! You are positively perfect! People partake in your perfection everyday when they say words like pirate and package and periodontist. Please, letter P, please continue to pioneer your peerless path. Subscribe to the Sesame Street Channel here: http:/
02:15 Popular
Sesame Street: Believe in Yourself Song (Michael Bublé&Elmo)

900 views / 0 likes - added 9 years ago

You can be what you want to be and do what you want to do if you would just listen to Michael Bublé and believe in yourself. Some folks try to tell you you're not strong enough or smart enough and there are things you shouldn't do, but those people are qu
04:28 Popular
Sesame Street: House of Bricks (House of Cards Parody)

798 views / 0 likes - added 9 years ago

Some people say there's too much pork in this town. Frank Underwolf could not agree more. And that is why Mr. Underwolf is on a mission to huff and puff and blow down all the little pigs' houses. In this town, you have to know which way the wind is blowin
13:55 Popular
Globalization II - Good or Bad?: Crash Course World History #42

756 views / 0 likes - added 9 years ago

In which John asks whether globalization is a net positive for humanity. While the new global economy has created a lot of wealth, and lifted a lot of people out of poverty, it also has some effects that aren't so hot. Wealth disparity, rising divorce rat
11:51 Popular
Globalization I - The Upside: Crash Course World History #41

791 views / 0 likes - added 9 years ago

In which John Green teaches you about globalization, a subject so epic, so, um, global, it requires two videos. In this video, John follows the surprisingly complex path of t-shirt as it criss-crosses the world before coming to rest on your doorstep, and
12:11 Popular
Communists, Nationalists, and China's Revolutions: Crash Course World History #37

854 views / 3 likes - added 9 years ago

Don't forget! Crash Course posters and t-shirts at http://www.dftba.com/crashcourse In which John Green teaches you about China's Revolutions. While the rest of the world was off having a couple of World Wars, China was busily uprooting the dynastic syste
11:45 Popular
Archdukes, Cynicism, and World War I: Crash Course World History #36

1,191 views / 1 likes - added 9 years ago

In which John Green teaches you about the war that was supposed to end all wars. Instead, it solved nothing and set the stage for the world to be back at war just a couple of decades later. As an added bonus, World War I changed the way people look at the
13:46 Popular
Imperialism: Crash Course World History #35

2,311 views / 0 likes - added 9 years ago

In which John Green teaches you about European Imperialism in the 19th century. European powers started to create colonial empires way back in the 16th century, but businesses really took off in the 19th century, especially in Asia and Africa. During the
11:53 Popular
Samurai, Daimyo, Matthew Perry, and Nationalism: Crash Course World History #34

809 views / 1 likes - added 9 years ago

In which John Green teaches you about Nationalism. Nationalism was everywhere in the 19th century, as people all over the world carved new nation-states out of old empires. Nationalist leaders changed the way people thought of themselves and the places th
11:05 Popular
Coal, Steam, and The Industrial Revolution: Crash Course World History #32

908 views / 1 likes - added 9 years ago

Mongols Shirts and Crash Course Posters! http://www.dftba.com/crashcourse In which John Green wraps up revolutions month with what is arguably the most revolutionary of modern revolutions, the Industrial Revolution. While very few leaders were beheaded in
13:43 Popular
Latin American Revolutions: Crash Course World History #31

1,181 views / 0 likes - added 9 years ago

In which John Green talks about the many revolutions of Latin America in the 19th century. At the beginning of the 1800s, Latin America was firmly under the control of Spain and Portugal. The revolutionary zeal that had recently created the United States
11:27 Popular
Tea, Taxes, and The American Revolution: Crash Course World History #28

1,363 views / 7 likes - added 9 years ago

In which John Green teaches you about the American Revolution and the American Revolutionary War, which it turns out were two different things. John goes over the issues and events that precipitated rebellion in Britain's American colonies, and he also ex
10:33 Popular
The Amazing Life and Strange Death of Captain Cook: Crash Course World History #27

816 views / 2 likes - added 9 years ago

In which John Green teaches you about the life and death of one of history's great explorers, Captain James Cook of the British Navy. He charted large swaths of the Pacific ocean, laid claim to Australia and New Zealand, and died a bizarre death in the Sa
10:46 Popular
The Spanish Empire, Silver,&Runaway Inflation: Crash Course World History #25

805 views / 1 likes - added 9 years ago

In which John Green explores how Spain went from being a middling European power to one of the most powerful empires on Earth, thanks to their plunder of the New World in the 16th and 17th centuries. Learn how Spain managed to destroy the two biggest pre-
11:08 Popular
The Atlantic Slave Trade: Crash Course World History #24

1,022 views / 0 likes - added 9 years ago

In which John Green teaches you about one of the least funny subjects in history: slavery. John investigates when and where slavery originated, how it changed over the centuries, and how Europeans and colonists in the Americas arrived at the idea that peo
12:09 Popular
The Columbian Exchange: Crash Course World History #23

1,034 views / 0 likes - added 9 years ago

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 Cosby, Jr. After Columbus "discovered" the Americas, Eu
11:33 Popular
The Renaissance: Was it a Thing? - Crash Course World History #22

1,174 views / 1 likes - added 9 years ago

In which John Green teaches you about the European Renaissance. European learning changed the world in the 15th and 16th century, but was it a cultural revolution, or an evolution? We'd argue that any cultural shift that occurs over a couple of hundred ye
12:26 Popular
The Roman Empire. Or Republic. Or...Which Was It?: Crash Course World History #10

1,063 views / 1 likes - added 9 years ago

In which John Green explores exactly when Rome went from being the Roman Republic to the Roman Empire. Here's a hint: it had something to do with Julius Caesar, but maybe less than you think. Find out how Caesar came to rule the empire, what led to him ge
11:02 Popular
Alexander the Great and the Situation ... the Great? Crash Course World History #8

1,160 views / 4 likes - added 9 years ago

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 bec
11:11 Popular
The Agricultural Revolution: Crash Course World History #1

848 views / 0 likes - added 9 years ago

Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything
10:26 Popular
Ecology - Rules for Living on Earth: Crash Course Biology #40

2,264 views / 0 likes - added 9 years ago

Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been interacting with ea
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11:54 Popular
Vascular Plants = Winning! - Crash Course Biology #37

1,100 views / 0 likes - added 9 years ago

Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can take food and water f
12:17 Popular
Old&Odd: Archaea, Bacteria&Protists - CrashCourse Biology #35

845 views / 1 likes - added 9 years ago

Hank veers away from human anatomy to teach us about the (mostly) single-celled organisms that make up two of the three taxonomic domains of life, and one of the four kingdoms: Archaea, Bacteria, and Protists. They are by far the most abundant organisms o
13:11 Popular
The Skeletal System: It's ALIVE! - CrashCourse Biology #30

1,301 views / 1 likes - added 9 years ago

Hank introduces us to the framework of our bodies, our skeleton, which apart from being the support and protection for all our fleshy parts, is involved in many other vital processes that help our bodies to function properly. Crash Course Biology is now a
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11:17 Popular
Water - Liquid Awesome: Crash Course Biology #2

1,649 views / 0 likes - added 9 years ago

Hank teaches us why water is one of the most fascinating and important substances in the universe. Follow SciShow on Twitter: http://www.twitter.com/scishow Like SciShow on Facebook: http://www.facebook.com/scishow Review: Re-watch = 00:00 Introduction =
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11:18 Popular
The Poetry of Sylvia Plath: Crash Course Literature 216

728 views / 2 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
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11:37 Popular
Race, Class, and Gender in To Kill a Mockingbird: Crash Course Literature 211

726 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
12:24 Popular
Ghosts, Murder, and More Murder - Hamlet Part I: Crash Course Literature 203

863 views / 1 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
12:42 Popular
Of Pentameter&Bear Baiting - Romeo&Juliet Part I: Crash Course English Literature #2

715 views / 0 likes - added 9 years ago

In which John Green examines Romeo&Juliet by William Shakespeare. John delves into the world of Bill Shakespeare's famous star-crossed lovers and examines what the play is about, its structure, and the context in which it was written. Have you ever wanted
07:00 Popular
How and Why We Read: Crash Course English Literature #1

1,129 views / 2 likes - added 9 years ago

In which John Green kicks off the Crash Course Literature mini series with a reasonable set of questions. Why do we read? What's the point of reading critically. John will argue that reading is about effectively communicating with other people. Unlike a d
15:40 Popular
Obamanation: Crash Course US History #47

774 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
13:24
Ford, Carter, and the Economic Malaise: Crash Course US History #42

668 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
11:58 Popular
Civil Rights and the 1950s: Crash Course US History #39

1,187 views / 5 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
15:07 Popular
Progressive Presidents: Crash Course US History #29

734 views / 1 likes - added 9 years ago

In which John Green teaches you about the Progressive Presidents, who are not a super-group of former presidents who create complicated, symphonic, rock soundscapes that transport you into a fantasy fugue state. Although that would be awesome. The preside
15:01 Popular
The Progressive Era: Crash Course US History #27

907 views / 1 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps keep the channel producing great conten
12:45 Popular
Growth, Cities, and Immigration: Crash Course US History #25

1,256 views / 2 likes - added 9 years ago

In which John Green teaches you about the massive immigration to the United States during the late 19th and early 20th century. Immigrants flocked to the US from all over the world in this time period. Millions of Europeans moved to the US where they drov
12:32 Popular
The Industrial Economy: Crash Course US History #23

937 views / 0 likes - added 9 years ago

In which John Green teaches you about the Industrial Economy that arose in the United States after the Civil War. You know how when you're studying history, and you're reading along and everything seems safely in the past, and then BOOM you think, "Man, t
15:05 Popular
Age of Jackson: Crash Course US History #14

952 views / 2 likes - added 9 years ago

In which John Green teaches you about the presidency of Andrew Jackson So how did a president with astoundingly bad fiscal policies end up on the $20 bill? That's a question we can't answer, but we can tell you how Jackson got to be president, and how he
14:11 Popular
The Market Revolution: Crash Course US History #12

787 views / 0 likes - added 9 years ago

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 classi
13:04 Popular
The Constitution, the Articles, and Federalism: Crash Course US History #8

1,083 views / 3 likes - added 9 years ago

In which John Green teaches you about the United States Constitution. During and after the American Revolutionary War, the government of the new country operated under the Articles of Confederation. While these Articles got the young nation through its wa
12:41 Popular
Who Won the American Revolution?: Crash Course US History #7

1,048 views / 1 likes - added 9 years ago

In which John Green teaches you about the American Revolution. And the Revolutionary War. I know we've labored the point here, but they weren't the same thing. In any case, John will teach you about the major battles of the war, and discuss the strategies
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10:40 Popular
The Seven Years War and the Great Awakening: Crash Course US History #5

35.9k views / 309 likes - added 9 years ago

In which John Green teaches you about the beginnings of the American Revolution in a video titled The Seven Years War. Confusing? Maybe. John argues that the Seven Years War, which is often called the French and Indian War in the US, laid a lot of the gro
11:38
The Quakers, the Dutch, and the Ladies: Crash Course US History #4

658 views / 2 likes - added 9 years ago

In which John Green teaches you about some of the colonies that were not in Virginia or Massachussetts. Old New York was once New Amsterdam. Why they changed it, I can say; ENGLISH people just liked it better that way, and when the English took New Amster
11:27 Popular
The Natives and the English - Crash Course US History #3

939 views / 2 likes - added 9 years ago

In which John Green teaches you about relations between the early English colonists and the native people the encountered in the New World. In short, these relations were poor. As soon as they arrived, the English were in conflict with the native people.
11:20 Popular
The Black Legend, Native Americans, and Spaniards: Crash Course US History #1

934 views / 1 likes - added 9 years ago

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
10:46 Popular
Polar&Non-Polar Molecules: Crash Course Chemistry #23

1,024 views / 1 likes - added 9 years ago

*** PLEASE WATCH WITH ANNOTATIONS ON! SOME INACCURACIES IN GRAPHICS ARE NOTED AND CORRECTED IN ANNOTATIONS. THANKS! *** Molecules come in infinite varieties, so in order to help the complicated chemical world make a little more sense, we classify and cate
09:46 Popular
Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22

960 views / 0 likes - added 9 years ago

Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The n
11:35
Real Gases: Crash Course Chemistry #14

577 views / 0 likes - added 9 years ago

Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms
09:03 Popular
The Ideal Gas Law: Crash Course Chemistry #12

1,163 views / 0 likes - added 9 years ago

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 beh
11:13 Popular
Redox Reactions: Crash Course Chemistry #10

1,133 views / 0 likes - added 9 years ago

All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they c
13:34 Popular
Water and Solutions -- for Dirty Laundry: Crash Course Chemistry #7

1,635 views / 0 likes - added 9 years ago

Dihydrogen monoxide (better know as water) is the key to nearly everything. It falls from the sky, makes up 60% of our bodies, and just about every chemical process related to life takes place with it or in it. Without it, none of the chemical reactions t
10:08 Popular
Social Influence: Crash Course Psychology #38

778 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
10:48 Popular
Social Thinking: Crash Course Psychology #37

720 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
10:00
Depressive and Bipolar Disorders: Crash Course Psychology #30

693 views / 2 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
11:32 Popular
OCD&Anxiety Disorders: Crash Course Psychology #29

905 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
11:04 Popular
Brains Vs. Bias: Crash Course Psychology #24

723 views / 1 likes - added 9 years ago

***Subbable Message*** To: Everyone! Life is short. Don't forget to be awesome. Please. From: Dr. Dot To: All Living People Prepare - for I am about to take over the world. From: S.J. Black ****** You can directly support Crash Course at http://www.subbab
11:08 Popular
Measuring Personality: Crash Course Psychology #22

1,042 views / 1 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
10:02 Popular
Language: Crash Course Psychology #16

886 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
13:33 Popular
Japan in the Heian Period and Cultural History: Crash Course World History 227

1,327 views / 7 likes - added 9 years ago

In which John Green teaches you about what westerners call the middle ages and the lives of the aristocracy...in Japan. The Heian period in Japan lasted from 794CE to 1185CE, and it was an interesting time in Japan. Rather than being known for a thriving
13:41 Popular
Iran's Revolutions: Crash Course World History 226

774 views / 0 likes - added 9 years ago

In which John Green teaches you about Iran's Revolutions. Yes, revolutions plural. What was the1979 Iranian Revolution about? It turns out, Iran has a pretty long history of unrest in order to put power in the hands of the people, and the most recent revo
11:09
Water and Classical Civilizations: Crash Course World History 222

692 views / 1 likes - added 9 years ago

In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John talks about water i
12:58 Popular
Congo and Africa's World War: Crash Course World History 221

875 views / 2 likes - added 9 years ago

In which John Green teaches you about the Democratic Republic of the Congo, which used to be Zaire, which used to be The Belgian Congo, which used to be the Congo Free State, which used to be the region surrounding the Congo River Basin in central Africa.
11:44 Popular
The Mughal Empire and Historical Reputation: Crash Course World History #217

1,004 views / 0 likes - added 9 years ago

There's a new Crash Course poster with all your favorite World History characters! Czech it: http://store.dftba.com/products/crashcourse-characters-poster In which John Green teaches you about the Mughal Empire, which ruled large swaths of the Indian Sub-
12:51 Popular
Population, Sustainability, and Malthus: Crash Course World History 215

1,145 views / 0 likes - added 9 years ago

In which John Green teaches you about population. So, how many people can reasonably live on the Earth? Thomas Malthus got it totally wrong in the 19th century, but for some reason, he keeps coming up when we talk about population. In 1800, the human popu
12:31 Popular
The Railroad Journey and the Industrial Revolution: Crash Course World History 214

753 views / 2 likes - added 9 years ago

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
12:55 Popular
Asian Responses to Imperialism: Crash Course World History #213

815 views / 0 likes - added 9 years ago

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 th
12:59 Popular
The End of Civilization (In the Bronze Age): Crash Course World History 211

871 views / 1 likes - added 9 years ago

In which John Green teaches you about the Bronze Age civilization in what we today call the middle east, and how the vast, interconnected civilization that encompassed Egypt, The Levant, and Mesopotamia came to an end. What's that you say? There was no su
10:30 Popular
Drought and Famine: Crash Course World History #208

1,223 views / 0 likes - added 9 years ago

In which John Green teaches you a little bit about drought, which is a natural weather phenomenon, and famine, which is almost always the result of human activity. Throughout human history, when food shortages strike humanity, there was food around. There
13:43 Popular
Rethinking Civilization - Crash Course World History 201

754 views / 0 likes - added 9 years ago

In which John Green returns to teaching World History! This week, we'll be talking about the idea of civilization, some of the traditional hallmarks of so-called civilization, and why some people would choose to live outside the civilization model. It tur
12:20
The Anthropocene and the Near Future: Crash Course Big History #9

689 views / 1 likes - added 9 years ago

In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle, and awesome elect
13:58 Popular
The Modern Revolution: Crash Course Big History #8

822 views / 0 likes - added 9 years ago

In which Hank and John Green teach you a Crash Course on the modern revolution, and the upside of the progress that humanity has made in the last 500 years or so. And while there are two sides to every history, and many of these changes haven't been great
13:41 Popular
Migrations and Intensification: Crash Course Big History #7

1,037 views / 0 likes - added 9 years ago

In which Hank and John Green teach you about humanity conquering the Earth. Or at least moving from Africa into the rest of the Earth. As human beings spread out across the world and populations grew, humanity reached a critical mass of innovators, and co
16:14 Popular
Human Evolution: Crash Course Big History #6

1,012 views / 1 likes - added 9 years ago

In which John Green and Hank Green teach you about how human primates moved out of Africa and turned Earth into a real-life Planet of the Apes. And the apes are people! John and Hank teach you about how humans evolved, and the sort of tricks they picked u
15:05 Popular
The Evolutionary Epic: Crash Course Big History #5

1,006 views / 0 likes - added 9 years ago

In which John Green, Hank Green, and Emily Graslie teach you about evolution. So, in the last 3.8 billion years, life on Earth has evolved from single-celled prokaryotes to the dizzying array of life we have today. So how did all this happen? We'll talk a
13:29 Popular
Life Begins: Crash Course Big History #4

884 views / 1 likes - added 9 years ago

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they dev
14:33 Popular
The Sun&The Earth: Crash Course Big History #3

949 views / 2 likes - added 9 years ago

In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the Solar nebula, the bi
09:51 Popular
The Moon: Astronomy #12

962 views / 1 likes - added 9 years ago

Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation. This episode is brought to you by Squarespace: http://www.squarespace.com/crashcourse -- Table of Contents Many Millio
10:14 Popular
The Earth: Crash Course Astronomy #11

889 views / 0 likes - added 9 years ago

Phil starts the planet-by-planet tour of the solar system right here at home, Earth. -- Table of Contents Earth is a Planet 0:03 Layers of Earth 1:25 The Magnetic Field 5:10 Atmosphere and the Human Influence 6:14 -- PBS Digital Studios: http://youtube.co
12:04 Popular
The Sun: Crash Course Astronomy #10

803 views / 2 likes - added 9 years ago

Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our solar system. We look at the sun's core, plasma, magnetic fields, sunspots, solar flares, coronal mass ejections, and what all of that means for our planet. This epis
10:17 Popular
Introduction to the Solar System: Crash Course Astronomy #9

987 views / 1 likes - added 9 years ago

In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today. This episode is sponsored by Squaresp
10:32 Popular
Eclipses: Crash Course Astronomy #5

840 views / 0 likes - added 9 years ago

The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse -- As promised, Phil's sun spotting recommendations: Astronome
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Introduction to Astronomy: Crash Course Astronomy #1

731 views / 3 likes - added 9 years ago

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?" -- Table of Contents: What is Astronomy? 3:00 Who Studie
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Viewing g as the value of Earth's Gravitational Field Near the Surface

1,191 views / 0 likes - added 9 years ago

Viewing g as the value of Earth's gravitational field near the surface rather than the acceleration due to gravity near Earth's surface for an object in freefall More free lessons at: http://www.khanacademy.org/video?v=1E3Z_R5AHdg
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Normal Force and Contact Force

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The force that keeps a block of ice from falling towards the center of the earth More free lessons at: http://www.khanacademy.org/video?v=1WOrgrIcQZU
13:17 Popular
Birthday Probability Problem

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The probability that at least 2 people in a room of 30 share the same birthday. More free lessons at: http://www.khanacademy.org/video?v=9G0w61pZPig
11:47
More on IPOs

553 views / 0 likes - added 9 years ago

Public vs. Private Equity. Why people buy equity to begin with. More free lessons at: http://www.khanacademy.org/video?v=opEy6iN9kqc
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Alien Abduction Brain Teaser

834 views / 1 likes - added 9 years ago

Saving Earth from becoming a mushroom farm. More free lessons at: http://www.khanacademy.org/video?v=K4pocYXOmTQ
11:51
Groups of the Periodic Table

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Properties of alkali, alkaline earth and transition metals. Halogens and noble gases. More free lessons at: http://www.khanacademy.org/video?v=LDHg7Vgzses
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Milankovitch Cycles Precession and Obliquity

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How changes in Earth's rotation can effect Earth's seasons and climate More free lessons at: http://www.khanacademy.org/video?v=ZD8THEz18gc
05:50
How we know about the Earth's core

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S-wave shadow and P-wave detection patterns give us information about the core More free lessons at: http://www.khanacademy.org/video?v=KL0i1RSnpfI
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Compositional and Mechanical Layers of the Earth

842 views / 2 likes - added 9 years ago

Crust, mantle, core, lithosphere, asthenosphere, mesosphere, outer core, inner core More free lessons at: http://www.khanacademy.org/video?v=hHteUIS0OFY
09:33
Structure of the Earth

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Structure of the Earth - crust, mantle, core More free lessons at: http://www.khanacademy.org/video?v=4AxZ-6MOznY
07:17 Popular
Are Southern Hemisphere Seasons More Severe?

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Are Southern Hemisphere seasons more severe because of the eccentricity in Earth's orbit? More free lessons at: http://www.khanacademy.org/video?v=umvNQj-zmq4
10:08 Popular
Earth Formation

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How the Earth is a the byproduct of a local supernova More free lessons at: http://www.khanacademy.org/video?v=VbNXh0GaLYo
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Scale of Earth and Sun

728 views / 3 likes - added 9 years ago

Scale of Earth and Sun More free lessons at: http://www.khanacademy.org/video?v=GZx3U0dbASg
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Gravity for Astronauts in Orbit

622 views / 2 likes - added 9 years ago

Why do astronauts appear weightless despite being near the Earth? More free lessons at: http://www.khanacademy.org/video?v=oIZV-ixRTcY
20:47 Popular
How Earth's Tilt Causes Seasons

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How being Earth's tilt causes seasons More free lessons at: http://www.khanacademy.org/video?v=05qDIjKevJo
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How Many People to Hire Given the MPR curve

619 views / 0 likes - added 9 years ago

Thinking about how many people it makes sense to hire. Brief discussion of a monopsony. More free lessons at: http://www.khanacademy.org/video?v=p8PSIpMkEvA

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