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  • 01:16 Popular Sesame Street: The Flower Song

    Sesame Street: The Flower Song

    917 views / 0 likes - added

    Oh hi! You're just in time because today is the Sesame Street Flower Show! Flowers of all shapes and sizes with exotic names and beautiful colors are all on display outside of Hooper's store. Everyone will go crazy over Elmo's Daisy and everyone willl use

  • 01:53 Popular Sesame Street: Five Kangaroos with Jessica Mauboy!

    Sesame Street: Five Kangaroos with Jessica Mauboy!

    1,773 views / 0 likes - added

    1,2,3,4,5 Kangaroos! Hop hop hop 5 big red kangaroos! How many Kangaroos do you count dancing in the sand? Jessica Mauboy counted 5. Count along and sing with her in the land down under! Subscribe to the Sesame Street Channel here: http://www.youtube.com/

  • 00:33 Popular Sesame Street: Winter Sports Week on Sesame Street

    Sesame Street: Winter Sports Week on Sesame Street

    1,062 views / 2 likes - added

    Sesame Street is celebrating winter sports and all things athletic! Get ready for new episodes of Sesame Street starting February 3rd on PBS Kids. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStree

  • 03:20 Popular Sesame Street: Pentatonix Counts (&Sings) to Five

    Sesame Street: Pentatonix Counts (&Sings) to Five

    1,929 views / 2 likes - added

    Nobody has ever counted to five as beautifully and harmoniously as Pentatonix has. Make sure to check out their backstage mashup of "C is for Cookie" and "Rubber Duckie:" http://goo.gl/f1p2f9 Tune in to see Pentatonix on Sesame Street February 7th on PBS

  • 01:46 Popular Sesame Street: J is for Jump

    Sesame Street: J is for Jump

    775 views / 0 likes - added

    From Venice to the Taj Mahal to the streets of the Big Apple, kids everywhere are jumping. Why? Because its so much fun! Have you tried it? Go ahead, just jump up and down! Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_c

  • 01:49 Sesame Street: Lauren Graham&Grover are Authors

    Sesame Street: Lauren Graham&Grover are Authors

    563 views / 0 likes - added

    An author is someone who writes books and stories. So you see, its quite simple, being an author. Just think of a story you want to tell and write it down, and there you have it. You, my friend are an author. So, what will your next book be about? Subscri

  • 01:15 Popular Sesame Street: Number 5 Safari (The Adventures of Salty&Pierre)

    Sesame Street: Number 5 Safari (The Adventures of Salty&Pierre)

    732 views / 0 likes - added

    It's time for another number Safari with Salty and Pierre. It is said that somewhere in their backyard lurks the number five. While it's location is a mystery, the number five is probably somewhere after the number 4 and before the number 6. Watch and fin

  • 06:44 Popular Sesame Street: Irish Dancing School with Murray

    Sesame Street: Irish Dancing School with Murray

    2,549 views / 1 likes - added

    Want to learn the Irish jig in time for St. Paddy's Day? Tag along with Murray and Ovejita to visit Irish Dancing School. Where do you think Lord of the Dance learned to jig? Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription

  • 03:07 Sesame Street: Little Red Riding Hood

    Sesame Street: Little Red Riding Hood

    660 views / 1 likes - added

    And now Sesame Street proudly presents Musical Fairy Tales, where we bring a little music to your favorite fairy tales. Today's story takes us over the mountain and through the woods where Little Red Riding Hood has just arrived a granny's house with a ba

  • 05:29 Popular Sesame Street: Absorb (Word on the Street Podcast)

    Sesame Street: Absorb (Word on the Street Podcast)

    1,051 views / 0 likes - added

    The word on the street is absorb. Murray, Anna Kendrick, Ernie, and some kids on the street are all very excited to teach you what absorb means. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet

  • 05:54 Popular Sesame Street: Sculpture with Jon Hamm (Word on the Street Podcast)

    Sesame Street: Sculpture with Jon Hamm (Word on the Street Podcast)

    1,298 views / 0 likes - added

    A sculpture is a piece of art that's made by shaping or carving something or putting things together. Jon Hamm and Elmo were going to tell you about the word sculpture, but Elmo is coincidentally busy making a sculpture so John Hamm will do most of the ex

  • 01:34 Popular Sesame Street: Words That Start with M

    Sesame Street: Words That Start with M

    713 views / 0 likes - added

    Let's spend the day with the letter M. Start off making some muffins with milk in the morning. Maybe then you win a medal for making such marvelous muffins. Might want to clean up if things get a little messy. By that time, the moon will be out and it wil

  • 01:32 Popular Sesame Street: Count 6 Cheeseburgers

    Sesame Street: Count 6 Cheeseburgers

    885 views / 0 likes - added

    The chef has received an order. Billy and all his friends would each like a cheeseburger. See, there's Billy, Sam, Tracy, Jimmy, Sally, and Jessica, so that's six burgers. That means six patties, six slices of cheese, and six buns. All together that makes

  • 05:42 Popular Sesame Street: Relax (Word on the Street Podcast)

    Sesame Street: Relax (Word on the Street Podcast)

    1,046 views / 2 likes - added

    Relax! It's the weekend. Everyone could use a little bit of relaxing every now and then. Whether your frustrated from standing in line or your tired from a long hard week of preschool, it's important to make time for relaxing. Subscribe to the Sesame Stre

  • 03:26 Sesame Street: When Oscar was Orange

    Sesame Street: When Oscar was Orange

    593 views / 1 likes - added

    Back in the very very first season of Sesame Street, Oscar the Grouch was orange, not green! Can you believe it? After quite some time of living in a trashcan and not bathing, enough moss and mold built up on Oscar and he became green! It doesn't quite ma

  • 01:06 Sesame Street: Whole Wheat Roll Call

    Sesame Street: Whole Wheat Roll Call

    660 views / 0 likes - added

    Did you know that breads could be part of a healthy diet when they're made with whole grains? Get ready for the whole wheat roll call y'all! Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet For

  • 05:47 Popular Sesame Street: Respect (Word on the Street Podcast)

    Sesame Street: Respect (Word on the Street Podcast)

    10.9k views / 5 likes - added

    The word on the street this week is respect: treating people the way you want to be treated. Everyone understands the importance of respect, little kids, Superman, a bunch of chickens! Watch this video to hear what other people think about respect, and pl

  • 01:34 Popular Sesame Street: Father's Song

    Sesame Street: Father's Song

    705 views / 1 likes - added

    This part of Sesame Street is brought to you by Fathers. Wanna know what father's do? Well they do an awful lot so might as well listen to this song to learn about it. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center

  • 02:57 Popular Sesame Street: Abby and Cookie Monster Subtract (Eat) Cookies

    Sesame Street: Abby and Cookie Monster Subtract (Eat) Cookies

    1,008 views / 0 likes - added

    Abby has nine cookies altogether, nine scrumptious delicious golden chocolatey chocolate chip cookies. And she is going to teach Cookie Monster how to subtract by taking away a couple cookies at a time. This is, of course, is heartbreaking stuff for Cooki

  • 01:18 Popular Sesame Street: Cookie Monster Tiger Song

    Sesame Street: Cookie Monster Tiger Song

    1,124 views / 0 likes - added

    Tiger starts with T, right? Yes, of course! So come along and sing this very catchy song with cookie and his Tiger pals! It ought to be a really terrific time. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_use

  • 01:03 Sesame Street: One Direction and Bert Sing the Alphabet

    Sesame Street: One Direction and Bert Sing the Alphabet

    699 views / 1 likes - added

    Liam and Harry from One Direction are pretty sure they know their ABCs, but they wanted to run through them one more time for good measure. Bert was there to help. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add

  • 03:27 Sesame Street: Telly Interviews a Big Sister

    Sesame Street: Telly Interviews a Big Sister

    635 views / 1 likes - added

    We take you to our "Monster On The Spot" with the story of an actual big sister and her little brother. We've got Telly on location with Nicole and she is going to discuss the good points and bad points about being a big sister. Subscribe to the Sesame St

  • 06:28 Popular Sesame Street: Soggy (Word on the Street Podcast)

    Sesame Street: Soggy (Word on the Street Podcast)

    808 views / 0 likes - added

    What's it mean to be soggy? Do you like soggy bread or soggy cereal? Probably not! Soggy is when something is mushy and wet. Your cereal gets soggy when you take too much time to eat it so stop reading this and eat your cereal while you watch this video!

  • 00:44 Popular Sesame Street: "Learning Rocks" Preview

    Sesame Street: "Learning Rocks" Preview

    813 views / 0 likes - added

    Famous rocker Virgil Von Vivaldi (Michael McKean) is in town to recruit musicians for his all-rock band. Can Elmo and Abby help him find the right rocks? Then LMNOP (Donald Glover) is set to perform on the Street but loses all of his equipment. Can the Se

  • 05:49 Popular Sesame Street: Strategy (Word on the Street Podcast)

    Sesame Street: Strategy (Word on the Street Podcast)

    868 views / 0 likes - added

    When do you use a strategy? Do you even know what strategy means? OK. A strategy is a plan you make to achieve a goal. For example, say you want to make it to the moon. You'd probably want to figure out a plan of how to get there. Maybe before getting to

  • 03:30 Popular Sesame Street: Michelle Obama&the Most Important Meal

    Sesame Street: Michelle Obama&the Most Important Meal

    1,013 views / 4 likes - added

    Breakfast is the first meal of the day and it is a very important meal. That's why the First Lady, Michelle Obama, makes sure she eats breakfast even when she visits Sesame Street. So make time for breakfast, even if you're a very busy monster like Grover

  • 00:33 Popular Sesame Street: Catch Us Every Morning&Afternoon!

    Sesame Street: Catch Us Every Morning&Afternoon!

    928 views / 1 likes - added

    Ever look at your watch, and think "Man, I missed Sesame Street today?" Well now you have two chances to catch Sesame Street on TV! Catch all-new episodes of Sesame Street starting September 15 on PBS KIDS! Now every morning AND afternoon. Subscribe to th

  • 05:18 Popular Sesame Street: Star S'Mores (Star Wars Parody)

    Sesame Street: Star S'Mores (Star Wars Parody)

    1,064 views / 4 likes - added

    A long time ago in a cookies and milky way galaxy far, far away...Princess Parfaya was taken prisoner by the Evil Galactic Empire and had to be saved by a group of unlikely heroes including the young Luke Piewalker, Flan Solo, and Chewie,the Cookiee. Subs

  • 00:42 Popular Sesame Street:“Elmo Super Numbers” Preview

    Sesame Street:“Elmo Super Numbers” Preview

    738 views / 0 likes - added

    Join Elmo at Numeric Con, the biggest number lovers’ convention of the year! Elmo is dressed as "The Dark NINE" and Leela is "Princess THREEah." Their foolproof plan to meet their favorite number heroes, including "Doctor TWO," "In-THREE-Ana Jones," and "

  • 06:17 Popular Sesame Street: Super Grover at The Penguin Party

    Sesame Street: Super Grover at The Penguin Party

    945 views / 1 likes - added

    It's dance time for these four penguins. But there's an icy obstacle in the way of their dance floor. Luckily Super Grover 2.0 shows up to unleash his powers of technology to move the iceberg so that the dancing festivities can continue. Subscribe to the

  • 01:13 Popular Sesame Street: Number 1 (Number of the Day)

    Sesame Street: Number 1 (Number of the Day)

    1,756 views / 0 likes - added

    Number 1! Number 1! Number 1! You might be wondering who: who is number 1? And the answer is simple: number 1! Number 1 is such a great number. Number 1 is a fearless leader, coming before all the other numbers, leading the pack and helping you get to num

  • 01:48 Sesame Street: Viola Davis and Elmo Throw a Fiesta!

    Sesame Street: Viola Davis and Elmo Throw a Fiesta!

    575 views / 0 likes - added

    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

  • 12:28 Popular Sesame Street: Dance With Murray, Elmo, Mando and Rosita!

    Sesame Street: Dance With Murray, Elmo, Mando and Rosita!

    1,132 views / 0 likes - added

    Dancing the flamenco, singing with your amiguita, rhyming with words with Mando, this all just part of our Hispanic Heritage fiesta on Sesame Street. Come dance with Elmo, Murray, Mando and Rosita! Baile! Baile! Subscribe to the Sesame Street Channel here

  • 13:48 Popular Sesame Street: Gina Adopts a Baby (Part One)

    Sesame Street: Gina Adopts a Baby (Part One)

    871 views / 0 likes - added

    What's the buzz on Sesame Street? It seems like the adults are all excited because Gina is going away to some exotic place and bringing back a baby! Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStr

  • 01:14 Popular Sesame Street: Number 4 (Number of the Day)

    Sesame Street: Number 4 (Number of the Day)

    1,238 views / 1 likes - added

    Number 4, you're what our hearts beat four. You're the number of squares and rectangles and rock and roll. Its so fun to count you , I think that's why musicians do! Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?a

  • 17:28 Popular Sesame Street: Gina Adopts a Baby (Part Two)

    Sesame Street: Gina Adopts a Baby (Part Two)

    1,006 views / 0 likes - added

    Gina's back from Guatemala with a baby! Alan and Gordon built a crib for the baby so he can make Sesame Street his home. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet You can catch Sesame Str

  • 01:44 Sesame Street: Blue Jay Song

    Sesame Street: Blue Jay Song

    699 views / 0 likes - added

    One fine evening, a blue jay had a party. The nest was full and everyone had a good time. When the party came to an end, the robin flew away, and the pigeon hailed a cab, and all the other birdies found their way home until the nest was finally empty. Emp

  • 01:23 Sesame Street: One of These Kids is Colder Than the Others

    Sesame Street: One of These Kids is Colder Than the Others

    518 views / 1 likes - added

    One of these kids is not like the others. Some of these kids are dressed for one season, and another one is dressed for a completely different season. Can you tell which one is not like the others? Subscribe to the Sesame Street Channel here: http://www.y

  • 01:57 Popular Sesame Street: Elmo's Christmas Song

    Sesame Street: Elmo's Christmas Song

    1,354 views / 1 likes - added

    Elmo has a wish for Christmas time that makes him so happy. Can you guess what it is? It's not a toy or a bike. All Elmo wants this holiday is Elmo's friends and Elmo's family. That's Elmo's Christmas dream. Subscribe to the Sesame Street Channel here: ht

  • 03:37 Sesame Street: Oscar Plays the Trading Game

    Sesame Street: Oscar Plays the Trading Game

    550 views / 2 likes - added

    It’s time for the Trading Game with TV's terrific trader, Guy Smiley. Today's contestants are Sally Screamer and Oscar the Grouch. Oscar is hoping he'll win something cruddy and rusty, and Sally is hoping for something pretty. Watch what happens on today'

  • 00:38 Popular Sesame Street:“The Best of Elmo 3” Preview

    Sesame Street:“The Best of Elmo 3” Preview

    998 views / 0 likes - added

    It’s all Elmo all the time in this collection of the best moments with everyone’s favorite furry red monster - Elmo! Elmo sings and dances his way through letters, numbers, vocabulary, and emotions with his Sesame Street pals. A few of Elmo's famous frien

  • 03:09 Popular Sesame Street: Cookie Monster Unboxes a Pizza

    Sesame Street: Cookie Monster Unboxes a Pizza

    845 views / 3 likes - added

    Cookie Monster will unbox a pizza box today. A pizza box is a square with 4 sides and 4 corners. Inside the box is a round pizza, but the round pizza is made up of a bunch of triangular slices. Subscribe to the Sesame Street Channel here: http://www.youtu

  • 03:19 Sesame Street: Salvatore Dada's Abstract Art

    Sesame Street: Salvatore Dada's Abstract Art

    498 views / 0 likes - added

    Behold abstract pieces of art,“2,” “3,” and “4.” Can you guess what the next art piece is named? Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet You can catch Sesame Street in the morning and t

  • 11:51 Popular Globalization I - The Upside: Crash Course World History #41

    Globalization I - The Upside: Crash Course World History #41

    791 views / 0 likes - added

    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

  • 12:49 Popular Decolonization and Nationalism Triumphant: Crash Course World History #40

    Decolonization and Nationalism Triumphant: Crash Course World History #40

    908 views / 2 likes - added

    READ THIS: THERE ARE TWO MORE VIDEOS IN THE WORLD HISTORY SERIES. You should also turn on the captions. You'll like them. In which John Green teaches you about the post-World War II breakup of most of the European empires. As you'll remember from previous

  • 10:33 Popular The Amazing Life and Strange Death of Captain Cook: Crash Course World History #27

    The Amazing Life and Strange Death of Captain Cook: Crash Course World History #27

    815 views / 2 likes - added

    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

  • 11:33 Popular The Renaissance: Was it a Thing? - Crash Course World History #22

    The Renaissance: Was it a Thing? - Crash Course World History #22

    1,172 views / 1 likes - added

    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

  • 11:32 Popular Wait For It...The Mongols!: Crash Course World History #17

    Wait For It...The Mongols!: Crash Course World History #17

    989 views / 2 likes - added

    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

  • 11:33 Popular The Crusades - Pilgrimage or Holy War?: Crash Course World History #15

    The Crusades - Pilgrimage or Holy War?: Crash Course World History #15

    990 views / 0 likes - added

    In which John Green teaches you about the Crusades embarked upon by European Christians in the 12th and 13th centuries. Our traditional perception of the Crusades as European Colonization thinly veiled in religion isn't quite right. John covers the First

  • 11:55 Popular Ancient Egypt: Crash Course World History #4

    Ancient Egypt: Crash Course World History #4

    1,583 views / 9 likes - added

    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. Crash Course World History is now av

  • 10:26 Popular Ecology - Rules for Living on Earth: Crash Course Biology #40

    Ecology - Rules for Living on Earth: Crash Course Biology #40

    2,261 views / 0 likes - added

    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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  • 11:52 Popular Fungi: Death Becomes Them - CrashCourse Biology #39

    Fungi: Death Becomes Them - CrashCourse Biology #39

    976 views / 2 likes - added

    Death is what fungi are all about. By feasting on the deceased remains of almost all organisms on the planet, converting the organic matter back into soil from which new life will spring, they perform perhaps the most vital function in the global food web

  • 10:24 Popular The Plants&The Bees: Plant Reproduction - CrashCourse Biology #38

    The Plants&The Bees: Plant Reproduction - CrashCourse Biology #38

    1,719 views / 0 likes - added

    Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they've tricked it out so that it works a whole lot differently compared to the wa

  • 11:54 Popular Vascular Plants = Winning! - Crash Course Biology #37

    Vascular Plants = Winning! - Crash Course Biology #37

    1,100 views / 0 likes - added

    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

    Old&Odd: Archaea, Bacteria&Protists - CrashCourse Biology #35

    844 views / 1 likes - added

    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

  • 11:21 Popular Great Glands - Your Endocrine System: CrashCourse Biology #33

    Great Glands - Your Endocrine System: CrashCourse Biology #33

    1,193 views / 1 likes - added

    Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development&function. Like CrashCourse on Facebook: h

  • 15:02 Popular Your Immune System: Natural Born Killer - Crash Course Biology #32

    Your Immune System: Natural Born Killer - Crash Course Biology #32

    920 views / 0 likes - added

    Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCour

  • 12:52 Popular Big Guns: The Muscular System - CrashCourse Biology #31

    Big Guns: The Muscular System - CrashCourse Biology #31

    1,781 views / 1 likes - added

    Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse: http://www.facebook.com/YouTubeCrashCourse Follow CrashCo

  • 13:11 Popular The Skeletal System: It's ALIVE! - CrashCourse Biology #30

    The Skeletal System: It's ALIVE! - CrashCourse Biology #30

    1,301 views / 1 likes - added

    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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  • 12:21 Popular The Excretory System: From Your Heart to the Toilet -  CrashCourse Biology #29

    The Excretory System: From Your Heart to the Toilet - CrashCourse Biology #29

    1,291 views / 1 likes - added

    Hank takes us on the fascinating journey through our excretory system to learn how our kidneys make pee. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow Cras

  • 11:53 Popular The Digestive System: CrashCourse Biology #28

    The Digestive System: CrashCourse Biology #28

    1,075 views / 6 likes - added

    Hank takes us through the bowels of the human digestive system and explains why it's all about surface area. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like Crash Course? http://www.facebook.com/youtubecrashcourse Follow Crash Cours

  • 11:40 Popular Circulatory&Respiratory Systems - CrashCourse Biology #27

    Circulatory&Respiratory Systems - CrashCourse Biology #27

    2,260 views / 0 likes - added

    Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function. Crash Course Biology is now available on DVD! ht

  • 12:10 Popular Chordates - CrashCourse Biology #24

    Chordates - CrashCourse Biology #24

    1,632 views / 0 likes - added

    Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal sarcopterygian osteich

  • 11:31 Popular Simple Animals: Sponges, Jellies,&Octopuses - Crash Course Biology #22

    Simple Animals: Sponges, Jellies,&Octopuses - Crash Course Biology #22

    847 views / 0 likes - added

    Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopuses a

  • 08:51 Popular Comparative Anatomy: What Makes Us Animals - Crash Course Biology #21

    Comparative Anatomy: What Makes Us Animals - Crash Course Biology #21

    1,764 views / 0 likes - added

    Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like

  • 11:44 Popular Evolution: It's a Thing - Crash Course Biology #20

    Evolution: It's a Thing - Crash Course Biology #20

    1,150 views / 0 likes - added

    Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization. Crash Course Biology is now availabl

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  • 12:16 Popular Taxonomy: Life's Filing System - Crash Course Biology #19

    Taxonomy: Life's Filing System - Crash Course Biology #19

    1,248 views / 0 likes - added

    Hank tells us the background story and explains the importance of the science of classifying living things, also known as taxonomy. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/You

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  • 11:05 Popular Population Genetics: When Darwin Met Mendel - Crash Course Biology #18

    Population Genetics: When Darwin Met Mendel - Crash Course Biology #18

    940 views / 0 likes - added

    Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation. Crash Course Biology is now available on DVD! http://dft.ba/-8

  • 10:57 Popular Evolutionary Development: Chicken Teeth - Crash Course Biology #17

    Evolutionary Development: Chicken Teeth - Crash Course Biology #17

    1,072 views / 0 likes - added

    Hank introduces us to the relatively new field of evolutionary developmental biology, which compares the developmental processes of different organisms to determine their ancestral relationship, and to discover how those processes evolved. Also fruit flie

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  • 11:32 Popular Animal Development: We're Just Tubes - Crash Course Biology #16

    Animal Development: We're Just Tubes - Crash Course Biology #16

    874 views / 0 likes - added

    Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/youtubecrashcourse

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  • 10:25 Popular Speciation: Of Ligers&Men - Crash Course Biology #15

    Speciation: Of Ligers&Men - Crash Course Biology #15

    1,495 views / 0 likes - added

    Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.c

  • 12:45 Popular Natural Selection - Crash Course Biology #14

    Natural Selection - Crash Course Biology #14

    2,024 views / 0 likes - added

    Hank guides us through the process of natural selection, the key mechanism of evolution. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.fa

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  • 11:43 Popular Cell Meiosis:  Crash Course Biology #13

    Cell Meiosis: Crash Course Biology #13

    994 views / 0 likes - added

    Hank gets down to the nitty gritty about meiosis, the special type of cell division that is necessary for sexual reproduction in eukaryotic organisms. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Compl

  • 10:48 Popular Mitosis: Splitting Up is Complicated - Crash Course Biology #12

    Mitosis: Splitting Up is Complicated - Crash Course Biology #12

    1,419 views / 0 likes - added

    Hank describes mitosis and cytokinesis - the series of processes our cells go through to divide into two identical copies. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like Cras

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  • 14:08 Popular DNA, Hot Pockets,&The Longest Word Ever: Crash Course Biology #11

    DNA, Hot Pockets,&The Longest Word Ever: Crash Course Biology #11

    1,135 views / 0 likes - added

    Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins. Crash Course B

  • 12:59 Popular DNA Structure and Replication: Crash Course Biology #10

    DNA Structure and Replication: Crash Course Biology #10

    1,197 views / 0 likes - added

    Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series

  • 13:15 Popular Photosynthesis: Crash Course Biology #8

    Photosynthesis: Crash Course Biology #8

    1,055 views / 3 likes - added

    Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well. Crash Course Biology is now available on DVD! http://dftba.com/pro

  • 13:26 Popular ATP&Respiration: Crash Course Biology #7

    ATP&Respiration: Crash Course Biology #7

    855 views / 0 likes - added

    In which Hank does some push ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/Cras

  • 10:28 Popular Plant Cells: Crash Course Biology #6

    Plant Cells: Crash Course Biology #6

    1,497 views / 1 likes - added

    Hank describes why plants are so freaking amazing - discussing their evolution, and how their cells are both similar to&different from animal cells. Crash Course Biology now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-S

  • 11:45 Popular In Da Club - Membranes&Transport: Crash Course Biology #5

    In Da Club - Membranes&Transport: Crash Course Biology #5

    741 views / 0 likes - added

    Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like Cras

  • 11:35 Popular Eukaryopolis - The City of Animal Cells: Crash Course Biology #4

    Eukaryopolis - The City of Animal Cells: Crash Course Biology #4

    1,102 views / 0 likes - added

    Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Se

  • 12:33 Popular That's Why Carbon Is A Tramp: Crash Course Biology #1

    That's Why Carbon Is A Tramp: Crash Course Biology #1

    1,436 views / 0 likes - added

    And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert Lewis? It's all containe

  • 11:32 Popular Langston Hughes&the Harlem Renaissance: Crash Course Literature 215

    Langston Hughes&the Harlem Renaissance: Crash Course Literature 215

    876 views / 3 likes - added

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  • 10:26 PTSD and Alien Abduction - Slaughterhouse-Five Part 2: Crash Course Literature 213

    PTSD and Alien Abduction - Slaughterhouse-Five Part 2: Crash Course Literature 213

    669 views / 0 likes - added

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  • 11:55 Popular To Kill a Mockingbird, Part I - Crash Course Literature 210

    To Kill a Mockingbird, Part I - Crash Course Literature 210

    766 views / 0 likes - added

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  • 09:30 Things Fall Apart, Part 2: Crash Course Literature 209

    Things Fall Apart, Part 2: Crash Course Literature 209

    664 views / 0 likes - added

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  • 10:19 If One Finger Brought Oil - Things Fall Apart part I: Crash Course Literature 208

    If One Finger Brought Oil - Things Fall Apart part I: Crash Course Literature 208

    693 views / 0 likes - added

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  • 13:12 Popular Reader, it's Jane Eyre - Crash Course Literature 207

    Reader, it's Jane Eyre - Crash Course Literature 207

    780 views / 2 likes - added

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  • 12:38 Frankenstein Part II: Crash Course Literature 206

    Frankenstein Part II: Crash Course Literature 206

    677 views / 0 likes - added

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  • 12:57 Popular Don't Reanimate Corpses! Frankenstein Part 1: Crash Course Literature 205

    Don't Reanimate Corpses! Frankenstein Part 1: Crash Course Literature 205

    1,033 views / 2 likes - added

    In which John Green teaches you about Mary Shelley's novel, Frankenstein. Sure, you know Frankenstein the cultural phenomenon, but how much do you know about the novel that started it all? You'll learn about the Romantic movement in English lit, of which

  • 12:24 Popular Ghosts, Murder, and More Murder - Hamlet Part I: Crash Course Literature 203

    Ghosts, Murder, and More Murder - Hamlet Part I: Crash Course Literature 203

    863 views / 1 likes - added

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  • 08:21 Holden, JD, and the Red Cap- The Catcher in the Rye Part 2: Crash Course English Literature #7

    Holden, JD, and the Red Cap- The Catcher in the Rye Part 2: Crash Course English Literature #7

    690 views / 0 likes - added

    In which John continues the discussion of JD Salinger's Catcher in the Rye. This week John reads the novel with Salinger's life story in mind. John explores how Salinger's war experience, educational background, and romantic life inform the events of Hold

  • 10:52 Language, Voice, and Holden Caulfield: The Catcher in the Rye Part 1

    Language, Voice, and Holden Caulfield: The Catcher in the Rye Part 1

    659 views / 0 likes - added

    In which John Green examines JD Salinger's novel The Catcher in the Rye. John pulls out the old school literary criticism by examining the text itself rather than paying attention to the biographical or historical context of the novel (that's for next wee

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  • 08:50 Popular Was Gatsby Great? The Great Gatsby Part 2: Crash Course English Literature #5

    Was Gatsby Great? The Great Gatsby Part 2: Crash Course English Literature #5

    861 views / 3 likes - added

    SPOILER ALERT: This video assumes you've read the book. In which John Green continues to explore F. Scott Fitzgerald's novel, The Great Gatsby. In this installment, John looks into the titular Gatsby's purported Greatness. Gatsby's single-minded pursuit o

  • 11:43 Popular Like Pale Gold - The Great Gatsby Part I: Crash Course English Literature #4

    Like Pale Gold - The Great Gatsby Part I: Crash Course English Literature #4

    753 views / 0 likes - added

    In which John Green explores F. Scott Fitzgerald's novel of the Jazz Age, The Great Gatsby. John introduces you to Nick Carraway, Jay Gatsby, Daisy and Tom Buchanan, and the other characters in the novel, and tries to look beyond the surface story to figu

  • 12:42 Popular Of Pentameter&Bear Baiting - Romeo&Juliet Part I: Crash Course English Literature #2

    Of Pentameter&Bear Baiting - Romeo&Juliet Part I: Crash Course English Literature #2

    715 views / 0 likes - added

    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

    How and Why We Read: Crash Course English Literature #1

    1,129 views / 2 likes - added

    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

  • 13:53 Popular George HW Bush and the End of the Cold War: Crash Course US History #44

    George HW Bush and the End of the Cold War: Crash Course US History #44

    970 views / 2 likes - added

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  • 13:24 Ford, Carter, and the Economic Malaise: Crash Course US History #42

    Ford, Carter, and the Economic Malaise: Crash Course US History #42

    667 views / 0 likes - added

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  • 14:51 Popular The Rise of Conservatism: Crash Course US History #41

    The Rise of Conservatism: Crash Course US History #41

    714 views / 0 likes - added

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  • 15:15 Popular The 1960s in America: Crash Course US History #40

    The 1960s in America: Crash Course US History #40

    924 views / 0 likes - added

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  • 11:58 Popular Civil Rights and the 1950s: Crash Course US History #39

    Civil Rights and the 1950s: Crash Course US History #39

    1,187 views / 5 likes - added

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  • 14:23 Popular World War II Part 2 - The Homefront: Crash Course US History #36

    World War II Part 2 - The Homefront: Crash Course US History #36

    1,481 views / 3 likes - added

    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

  • 13:27 Popular World War II Part 1: Crash Course US History #35

    World War II Part 1: Crash Course US History #35

    1,500 views / 6 likes - added

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  • 13:40 Popular America in World War I: Crash Course US History #30

    America in World War I: Crash Course US History #30

    905 views / 2 likes - added

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  • 13:51 Popular Gilded Age Politics:Crash Course US History #26

    Gilded Age Politics:Crash Course US History #26

    797 views / 0 likes - added

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  • 12:45 Popular Growth, Cities, and Immigration: Crash Course US History #25

    Growth, Cities, and Immigration: Crash Course US History #25

    1,255 views / 2 likes - added

    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

  • 10:54 Popular The Civil War Part 2: Crash Course US History #21

    The Civil War Part 2: Crash Course US History #21

    1,262 views / 6 likes - added

    In which John Green teaches you how the Civil War played a large part in making the United States the country that it is today. He covers some of the key ways in which Abraham Lincoln influenced the outcome of the war, and how the lack of foreign interven

  • 12:01 Popular The Civil War, Part I: Crash Course US History #20

    The Civil War, Part I: Crash Course US History #20

    1,323 views / 11 likes - added

    In which John Green ACTUALLY teaches about the Civil War. In part one of our two part look at the US Civil War, John looks into the causes of the war, and the motivations of the individuals who went to war. The overarching causes and the individual motiva

  • 14:17 Popular The Election of 1860&the Road to Disunion: Crash Course US History #18

    The Election of 1860&the Road to Disunion: Crash Course US History #18

    884 views / 1 likes - added

    In which John Green teaches you about the election of 1860. As you may remember from last week, things were not great at this time in US history. The tensions between the North and South were rising, ultimately due to the single issue of slavery. The Nort

  • 13:11 Popular Women in the 19th Century: Crash Course US History #16

    Women in the 19th Century: Crash Course US History #16

    1,170 views / 1 likes - added

    In which John Green finally gets around to talking about some women's history. In the 19th Century, the United States was changing rapidly, as we noted in the recent Market Revolution and Reform Movements episodes. Things were also in a state of flux for

  • 14:47 Popular 19th Century Reforms: Crash Course US History #15

    19th Century Reforms: Crash Course US History #15

    954 views / 1 likes - added

    In which John Green teaches you about various reform movements in the 19th century United States. From Utopian societies to the Second Great Awakening to the Abolition movement, American society was undergoing great changes in the first half of the 19th c

  • 14:25 Popular Slavery - Crash Course US History #13

    Slavery - Crash Course US History #13

    1,130 views / 5 likes - added

    In which John Green teaches you about America's "peculiar institution," slavery. I wouldn't really call it peculiar. I'd lean more toward horrifying and depressing institution, but nobody asked me. John will talk about what life was like for a slave in th

  • 13:19 Popular Thomas Jefferson&His Democracy: Crash Course US History #10

    Thomas Jefferson&His Democracy: Crash Course US History #10

    889 views / 3 likes - added

    In which John Green teaches you about founding father and third president of the United States, Thomas Jefferson. Jefferson is a somewhat controversial figure in American history, largely because he, like pretty much all humans, was a big bundle of contra

  • 13:57 Popular Where US Politics Came From: Crash Course US History #9

    Where US Politics Came From: Crash Course US History #9

    764 views / 0 likes - added

    In which John Green teaches you where American politicians come from. In the beginning, soon after the US constitution was adopted, politics were pretty non-existent. George Washington was elected president with no opposition, everything was new and excit

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  • 12:41 Popular Who Won the American Revolution?: Crash Course US History #7

    Who Won the American Revolution?: Crash Course US History #7

    1,048 views / 1 likes - added

    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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  • 12:19 Popular Taxes&Smuggling - Prelude to Revolution: Crash Course US History #6

    Taxes&Smuggling - Prelude to Revolution: Crash Course US History #6

    829 views / 1 likes - added

    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

  • 10:40 Popular The Seven Years War and the Great Awakening: Crash Course US History #5

    The Seven Years War and the Great Awakening: Crash Course US History #5

    35.9k views / 309 likes - added

    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

    The Quakers, the Dutch, and the Ladies: Crash Course US History #4

    658 views / 2 likes - added

    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

  • 11:20 Popular The Black Legend, Native Americans, and Spaniards: Crash Course US History #1

    The Black Legend, Native Americans, and Spaniards: Crash Course US History #1

    934 views / 1 likes - added

    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

  • 10:34 Popular The Global Carbon Cycle - Crash Course Chemistry #46

    The Global Carbon Cycle - Crash Course Chemistry #46

    1,709 views / 0 likes - added

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  • 10:15 Popular Polymers - Crash Course Chemistry #45

    Polymers - Crash Course Chemistry #45

    2,009 views / 0 likes - added

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  • 09:05 Popular Nomenclature - Crash Course Chemistry #44

    Nomenclature - Crash Course Chemistry #44

    1,367 views / 0 likes - added

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  • 08:38 Popular Hydrocarbon Derivatives - Crash Course Chemistry #43

    Hydrocarbon Derivatives - Crash Course Chemistry #43

    1,120 views / 0 likes - added

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  • 09:36 Popular Alkenes&Alkynes - Crash Course Chemistry #41

    Alkenes&Alkynes - Crash Course Chemistry #41

    1,092 views / 0 likes - added

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  • 11:18 Popular Nuclear Chemistry Part 2: Fusion and Fission - Crash Course Chemistry #39

    Nuclear Chemistry Part 2: Fusion and Fission - Crash Course Chemistry #39

    1,740 views / 1 likes - added

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  • 09:42 Popular The History of Atomic Chemistry: Crash Course Chemistry #37

    The History of Atomic Chemistry: Crash Course Chemistry #37

    1,056 views / 0 likes - added

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  • 09:04 Popular Electrochemistry: Crash Course Chemistry #36

    Electrochemistry: Crash Course Chemistry #36

    1,494 views / 0 likes - added

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  • 08:20 Popular Network Solids and Carbon: Crash Course Chemistry #34

    Network Solids and Carbon: Crash Course Chemistry #34

    941 views / 0 likes - added

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  • 09:18 Popular Doing Solids: Crash Course Chemistry #33

    Doing Solids: Crash Course Chemistry #33

    1,108 views / 0 likes - added

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  • 09:29 Popular Equilibrium Equations: Crash Course Chemistry #29

    Equilibrium Equations: Crash Course Chemistry #29

    745 views / 0 likes - added

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  • 10:57 Popular Equilibrium: Crash Course Chemistry #28

    Equilibrium: Crash Course Chemistry #28

    1,190 views / 0 likes - added

    In this episode of Crash Course Chemistry, Hank goes over the ideas of keeping your life balance... well, your chemical life. Equilibrium is all about balance and today Hank discusses Chemical Equilibrium, Concentration, Temperature, and Pressure. Also, h

  • 08:21 Popular Solutions: Crash Course Chemistry #27

    Solutions: Crash Course Chemistry #27

    705 views / 0 likes - added

    This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes. All that plus

  • 11:04 Popular Liquids: Crash Course Chemistry #26

    Liquids: Crash Course Chemistry #26

    750 views / 1 likes - added

    In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just... WEIRD! -- TABLE OF CONTENTS Londo

  • 11:38 Popular Bonding Models and Lewis Structures: Crash Course Chemistry #24

    Bonding Models and Lewis Structures: Crash Course Chemistry #24

    711 views / 0 likes - added

    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! -- Tab

  • 13:41 Popular Entropy: Embrace the Chaos! Crash Course Chemistry #20

    Entropy: Embrace the Chaos! Crash Course Chemistry #20

    784 views / 0 likes - added

    Life is chaos and the universe tends toward disorder. But why? If you think about it, there are only a few ways for things to be arranged in an organized manner, but there are nearly infinite other ways for those same things to be arranged. Simple rules o

  • 11:24 Popular Enthalpy: Crash Course Chemistry #18

    Enthalpy: Crash Course Chemistry #18

    1,139 views / 0 likes - added

    Energy is like the bestest best friend ever and yet, most of the time we take it for granted. Hank feels bad for our friend and wants us to learn more about it so that we can understand what it's trying to tell us - like that any bond between two atoms co

  • 09:26 Energy&Chemistry: Crash Course Chemistry #17

    Energy&Chemistry: Crash Course Chemistry #17

    647 views / 0 likes - added

    Grumpy Professor Hank admits to being wrong about how everything is chemicals. But he now wants you to listen as he blows your mind with a new sweeping statement: everything (yes, really everything this time) is energy. What?! This week, Hank takes us on

  • 11:26 Popular Passing Gases: Effusion, Diffusion and the Velocity of a Gas - Crash Course Chemistry #16

    Passing Gases: Effusion, Diffusion and the Velocity of a Gas - Crash Course Chemistry #16

    1,292 views / 0 likes - added

    We have learned over the past few weeks that gases have real-life constraints on how they move here in the non-ideal world. As with most things in chemistry (and also in life) how a gas moves is more complex than it at first appears. In this episode, Hank

  • 11:55 Popular Partial Pressures&Vapor Pressure: Crash Course Chemistry #15

    Partial Pressures&Vapor Pressure: Crash Course Chemistry #15

    726 views / 0 likes - added

    This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting gas over water. Table of

  • 11:45 Popular Ideal Gas Problems: Crash Course Chemistry #13

    Ideal Gas Problems: Crash Course Chemistry #13

    935 views / 0 likes - added

    We don't live in a perfect world, and neither do gases - it would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our cul

  • 09:03 Popular The Ideal Gas Law: Crash Course Chemistry #12

    The Ideal Gas Law: Crash Course Chemistry #12

    1,162 views / 0 likes - added

    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

  • 10:43 How To Speak Chemistrian: Crash Course Chemistry #11

    How To Speak Chemistrian: Crash Course Chemistry #11

    656 views / 0 likes - added

    Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native. Table of Contents Determining Formulas and Names of Monatom

  • 12:48 Popular The Electron: Crash Course Chemistry #5

    The Electron: Crash Course Chemistry #5

    979 views / 0 likes - added

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

  • 11:22 Popular The Periodic Table: Crash Course Chemistry #4

    The Periodic Table: Crash Course Chemistry #4

    1,161 views / 1 likes - added

    Hank gives us a tour of the most important table ever, including the life story of the obsessive man who championed it, Dmitri Mendeleev. The periodic table of elements is a concise, information-dense catalog of all of the different sorts of atoms in the

  • 10:59 The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry #3

    The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry #3

    634 views / 0 likes - added

    Today's Crash Course Chemistry takes a historical perspective on the creation of the science, which didn't really exist until a super-smart, super-wealthy Frenchman put the puzzle pieces together - Hank tells the story of how we went from alchemists to ch

  • 10:41 Aggression V. Altruism: Crash Course Psychology #40

    Aggression V. Altruism: Crash Course Psychology #40

    691 views / 0 likes - added

    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.

  • 10:08 Popular Social Influence: Crash Course Psychology #38

    Social Influence: Crash Course Psychology #38

    778 views / 0 likes - added

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  • 10:20 Popular Emotion, Stress and Health: Crash Course Psychology #26

    Emotion, Stress and Health: Crash Course Psychology #26

    972 views / 1 likes - added

    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.

  • 10:15 Popular Adolescence: Crash Course Psychology #20

    Adolescence: Crash Course Psychology #20

    1,030 views / 0 likes - added

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  • 11:20 Popular The Power of Motivation: Crash Course Psychology #17

    The Power of Motivation: Crash Course Psychology #17

    1,026 views / 0 likes - added

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  • 10:46 Popular Sensation&Perception - Crash Course Psychology #5

    Sensation&Perception - Crash Course Psychology #5

    752 views / 0 likes - added

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  • 12:34 Popular Meet Your Master: Getting to Know Your Brain - Crash Course Psychology #4

    Meet Your Master: Getting to Know Your Brain - Crash Course Psychology #4

    918 views / 0 likes - added

    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.

  • 10:14 Popular The Chemical Mind - Crash Course Psychology #3

    The Chemical Mind - Crash Course Psychology #3

    945 views / 0 likes - added

    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.

  • 10:51 Popular Psychological Research - Crash Course Psychology #2

    Psychological Research - Crash Course Psychology #2

    812 views / 1 likes - added

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  • 13:33 Popular Japan in the Heian Period and Cultural History: Crash Course World History 227

    Japan in the Heian Period and Cultural History: Crash Course World History 227

    1,327 views / 7 likes - added

    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

    Iran's Revolutions: Crash Course World History 226

    773 views / 0 likes - added

    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

  • 12:14 Popular War and Nation Building in Latin America: Crash Course World History 225

    War and Nation Building in Latin America: Crash Course World History 225

    897 views / 0 likes - added

    In which John Green teaches you about nation building and nationalism in Latin America. Sometimes, the nations of Latin America get compared to the nations of Europe, and are found wanting. This is kind of a silly comparison. The rise of democratic, econo

  • 11:18 Popular The Vikings! - Crash Course World History 224

    The Vikings! - Crash Course World History 224

    1,311 views / 5 likes - added

    In which John Green teaches you about Vikings! That's right, one of our most requested subjects, the Vikings, right here on Crash Course. So what's the deal with Vikings? Well, the stuff you've heard about them may not be true. The Vikings weren't just pa

  • 13:16 Popular Charles V and the Holy Roman Empire: Crash Course World History #219

    Charles V and the Holy Roman Empire: Crash Course World History #219

    1,097 views / 2 likes - added

    Get the new Crash Course World History Character poster here: http://store.dftba.com/products/crashcourse-characters-poster In which John Green teaches you about the Holy Roman Empire by teaching you about Charles V. Charles Hapsburg was the holy Roman Em

  • 12:31 Popular The Railroad Journey and the Industrial Revolution: Crash Course World History 214

    The Railroad Journey and the Industrial Revolution: Crash Course World History 214

    753 views / 2 likes - added

    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

  • 13:29 Popular Life Begins: Crash Course Big History #4

    Life Begins: Crash Course Big History #4

    883 views / 1 likes - added

    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

    The Sun&The Earth: Crash Course Big History #3

    949 views / 2 likes - added

    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

  • 08:49 Popular Autonomic Nervous System: Crash Course A&P #13

    Autonomic Nervous System: Crash Course A&P #13

    1,523 views / 1 likes - added

    Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences - where ner

  • 10:02 Popular Peripheral Nervous System: Crash Course A&P #12

    Peripheral Nervous System: Crash Course A&P #12

    1,542 views / 2 likes - added

    It is now time to meet the system that helps your crazy brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and efferent divisions, how it proc

  • 10:08 Popular Central Nervous System: Crash Course A&P #11

    Central Nervous System: Crash Course A&P #11

    1,202 views / 1 likes - added

    Today Hank talks about your central nervous system. In this episode we'll explore how your brain develops and how important location is for each of your brain's many functions. Table of Contents Central Nervous System, Location and Brain Function 1:48 Bra

  • 10:57 Popular The Nervous System, Part 3 - Synapses!: Crash Course A&P #10

    The Nervous System, Part 3 - Synapses!: Crash Course A&P #10

    1,427 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: NerdFighteria FROM: Dave at DTXC.CO Cycling t-shirts at DTXC.CO. Don't give up the Road! DFTBA! *** Subbable Co-Sponsors: Logan Sanders https://www.facebook.com/perrylogans Dr. Boyev http://youtube.com/taichiknees *** You can di

  • 11:44 Popular The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9

    The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9

    1,155 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Carla FROM: Christopher Next stop is whenever. Just be like, "stop." *** 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

  • 10:36 Popular The Nervous System, Part 1: Crash Course A&P #8

    The Nervous System, Part 1: Crash Course A&P #8

    1,180 views / 1 likes - added

    •••SUBBABLE MESSAGE••• TO: Kerry FROM: Cale I love you with all my ha-art. Deadset. *** 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 aff

  • 09:57 Popular The Integumentary System, Part 2 - Skin Deeper: Crash Course A&P #7

    The Integumentary System, Part 2 - Skin Deeper: Crash Course A&P #7

    762 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Helle Søndergaard FROM: Martin Søndergaard Congratulations for finishing first semester on physiotherapy! I'm so proud! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as

  • 09:40 Popular The Integumentary System, Part 1 - Skin Deep: Crash Course A&P #6

    The Integumentary System, Part 1 - Skin Deep: Crash Course A&P #6

    868 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Ciaran FROM: your sister Jillian Happy birthday! Hope you enjoy being immortalized via doobly-doo! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with ev

  • 09:43 Popular Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P #5

    Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P #5

    1,656 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: the world. FROM: Laura Love Rathbun Learning is the best thing to do with your you! *** 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

  • 10:29 Popular Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

    Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

    1,148 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Ashley FROM: Fee Happy birthday nerd also I love you lots and lots *** 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 y

  • 10:16 Popular Tissues, Part 2 - Epithelial Tissue: Crash Course A&P #3

    Tissues, Part 2 - Epithelial Tissue: Crash Course A&P #3

    1,551 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO : Phoebe and James McMullan FROM : Dad Continue being awesome Phoebe&James from John&Hank! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything

  • 10:43 Popular Tissues, Part 1: Crash Course A&P #2

    Tissues, Part 1: Crash Course A&P #2

    895 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Jordan Schoonover FROM: Mom, Dad&Madison Happy Birthday Jordan! We love you sweetheart!! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything w

  • 11:21 Popular Introduction to Anatomy&Physiology: Crash Course A&P #1

    Introduction to Anatomy&Physiology: Crash Course A&P #1

    855 views / 0 likes - added

    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.

  • 09:51 Popular The Moon: Astronomy #12

    The Moon: Astronomy #12

    961 views / 1 likes - added

    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

  • 10:32 Popular Eclipses: Crash Course Astronomy #5

    Eclipses: Crash Course Astronomy #5

    840 views / 0 likes - added

    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

  • 09:46 Popular Moon Phases: Crash Course Astronomy #4

    Moon Phases: Crash Course Astronomy #4

    1,973 views / 6 likes - added

    In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. -- Why the Moon Has Phases 0:36.1 Spheres in Orbit 1:05.4 Name of the Moon Phases 2:25.5 How We See It 7:48.2 -- PBS Digital Studios: http://youtube

  • 09:29 Cycles in the Sky: Crash Course Astronomy #3

    Cycles in the Sky: Crash Course Astronomy #3

    634 views / 0 likes - added

    This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe. -- Table of Contents: Naked Eye Observations 0:28.4 Constellations 3:09.7 The Color of Stars 2:44.5 View of

  • 11:17 Naked Eye Observations: Crash Course Astronomy #2

    Naked Eye Observations: Crash Course Astronomy #2

    673 views / 0 likes - added

    Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye. -- Table of Contents: Naked Eye Observations 0:28.4 Constellations 3:09.7 The Color of Stars 2:44.5 View of the

  • 06:30 Popular Presidential Power: Crash Course Government and Politics #11

    Presidential Power: Crash Course Government and Politics #11

    743 views / 0 likes - added

    This week Craig looks at the expressed powers of the President of the United States - that is the ones you can find in the Constitution. From appointing judges and granting pardons, to vetoing laws and acting as the nation’s chief diplomat on foreign poli

  • 06:36 Congressional Decisions: Crash Course Government and Politics #10

    Congressional Decisions: Crash Course Government and Politics #10

    638 views / 0 likes - added

    This week Craig breaks out the crystal ball to try and figure out why our congresspeople do the things that they do. We’ll talk about the three motivating factors of congressional decisions - constituency, interest groups, and political parties - and we’l

  • 07:01 Popular How a Bill Becomes a Law: Crash Course Government and Politics #9

    How a Bill Becomes a Law: Crash Course Government and Politics #9

    794 views / 1 likes - added

    Oh my, Craig has his work cut out for him this week. The process of how a bill becomes a law can be pretty complex, fraught with potential bill-death at every corner. As if just getting through committee isn’t difficult enough, bills have to navigate a se

  • 08:58 Congressional Elections: Crash Course Government and Politics #6

    Congressional Elections: Crash Course Government and Politics #6

    673 views / 0 likes - added

    This week Craig Benzine talks about the importance of elections. But he isn’t going to focus on presidential elections, but instead those of the strongest part of our government: congressional elections. Craig will talk about the frequency of elections in

  • 09:15 Popular Federalism: Crash Course Government and Politics #4

    Federalism: Crash Course Government and Politics #4

    704 views / 0 likes - added

    In which Craig Benzine teaches you about federalism, or the idea that in the United States, power is divided between the national government and the 50 state governments. Craig will teach you about how federalism has evolved over the history of the US, an

  • 08:31 Popular Separation of Powers and Checks and Balances: Crash Course Government and Politics #3

    Separation of Powers and Checks and Balances: Crash Course Government and Politics #3

    1,698 views / 2 likes - added

    In which Craig Benzine teaches you about the US Governments Separation of powers and the system of checks and balances. In theory, the Legislative Branch, the Executive Branch, and the Judicial Brach are designed to keep each other in check, and to keep a

  • 08:39 Test 3 Section 2 Part 5

    Test 3 Section 2 Part 5

    577 views / 0 likes - added

    Problems 18-20 on starting on page 522

  • 10:39 Magnetism 4

    Magnetism 4

    516 views / 0 likes - added

    Part 2 of the proton through a magnetic field problem More free lessons at: http://www.khanacademy.org/video?v=b1QFKLZC11U

  • 07:07 Circuits (part 4)

    Circuits (part 4)

    459 views / 0 likes - added

    A hairy resistance problem More free lessons at: http://www.khanacademy.org/video?v=3NcIK0s3IwU

  • 12:21 Circuits (part 3)

    Circuits (part 3)

    470 views / 0 likes - added

    Resistors in parallel More free lessons at: http://www.khanacademy.org/video?v=ZrMw7P6P2Gw

  • 11:08 Circuits (part 2)

    Circuits (part 2)

    445 views / 0 likes - added

    Resistors in series More free lessons at: http://www.khanacademy.org/video?v=7vHh1sfZ5KE

  • 11:40 Circuits (part 1)

    Circuits (part 1)

    504 views / 0 likes - added

    Introduction to electricity, circuits, current and resistance More free lessons at: http://www.khanacademy.org/video?v=3o8_EARoMtg

  • 09:51 Electric Potential Energy (part 2-- involves calculus)

    Electric Potential Energy (part 2-- involves calculus)

    636 views / 0 likes - added

    Electric potential energy difference in a varying field More free lessons at: http://www.khanacademy.org/video?v=CqsYCIjSm9A

  • 11:29 Popular Proof (Advanced): Field from infinite plate (part 2)

    Proof (Advanced): Field from infinite plate (part 2)

    967 views / 1 likes - added

    We see that the infinite, uniformly charged plate generates a constant electric field (independent of the height above the plate) More free lessons at: http://www.khanacademy.org/video?v=TxwE4_dXo8s

  • 13:27 Popular Proof (Advanced): Field from infinite plate (part 1)

    Proof (Advanced): Field from infinite plate (part 1)

    791 views / 0 likes - added

    Electric field generated by a uniformly charged, infinite plate More free lessons at: http://www.khanacademy.org/video?v=prLfVucoxpw

  • 13:33 Electrostatics (part 2)

    Electrostatics (part 2)

    462 views / 0 likes - added

    Electric Fields More free lessons at: http://www.khanacademy.org/video?v=0YOGrTNgGhE

  • 14:02 Electrostatics (part 1): Introduction to Charge and Coulomb's Law

    Electrostatics (part 1): Introduction to Charge and Coulomb's Law

    606 views / 0 likes - added

    Introduction to Charge and Coulomb's Law (video from May 2008 that I forgot to upload) More free lessons at: http://www.khanacademy.org/video?v=NXMgvrS8Gr8

  • 08:02 Thermodynamics (part 5)

    Thermodynamics (part 5)

    385 views / 0 likes - added

    Example problem involving PV=nRT More free lessons at: http://www.khanacademy.org/video?v=UekR9J31a2o

  • 10:14 Thermodynamics (part 4)

    Thermodynamics (part 4)

    465 views / 0 likes - added

    Introduction to the concept of a mole. Universal gas constant R. PV=nRT More free lessons at: http://www.khanacademy.org/video?v=5B1i26dUwME

  • 10:25 Thermodynamics (part 3)

    Thermodynamics (part 3)

    413 views / 0 likes - added

    Introduction to Kelvin. Example of a problem involving the ideal gas law More free lessons at: http://www.khanacademy.org/video?v=HvYUKRMT0VI

  • 10:18 Thermodynamics (part 2)

    Thermodynamics (part 2)

    409 views / 0 likes - added

    Example problem that pv=pv. Introduction to temperature. More free lessons at: http://www.khanacademy.org/video?v=x34OTtDE5q8

  • 09:50 Thermodynamics (part 1)

    Thermodynamics (part 1)

    553 views / 0 likes - added

    Intuition of how gases generate pressure in a container and why pressure x volume is proportional to the combined kinetic energy of the molecules in the volume. More free lessons at: http://www.khanacademy.org/video?v=tQcB9BLUoVI

  • 07:47 Fluids (part 12)

    Fluids (part 12)

    448 views / 0 likes - added

    Complete example of a Bernoulli's Equation exercise. More free lessons at: http://www.khanacademy.org/video?v=xlJYYM5TWoA


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