Now that we’ve finished our tour of the planets, we’re headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between Mars and Jupiter, but some get near the Earth. The biggest, Ceres is far smaller than the Moon but still big enough to be round and have undergone differentiation.

CORRECTION: In the episode we say that 2010 TK7 is 800 km away. However, 2010 TK7 stays on average 150 million kilometers from Earth, but that can vary wildly.
Sorry about that!

--

Table of Contents
Asteroids Are Chunks of Rock, Metal, or Both 1:45
Most Orbit the Sun Between Mars and Jupiter 7:16
Ceres is Far Smaller Than the Moon, But Large Enough to be Round 3:43

--

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--

PHOTOS/VIDEOS
Timelapse of Asteroid 2004 FH's flyby http://en.wikipedia.org/wiki/F....ile:Asteroid_2004_FH [credit: NASA/JPL Public Domain]
Asteroid Discovery Video https://www.youtube.com/watch?v=2k2vkLEE4ko [credit: Scott Manley - scottmanley1972@gmail.com]
Inner Solar System http://en.wikipedia.org/wiki/F....ile:InnerSolarSystem [credit: Wikimedia Commons]
Kirkwood gaps http://commons.wikimedia.org/w....iki/File:Kirkwood-ga [credit: Wikimedia Commons]
Ceres, Earth & Moon size comparison http://en.wikipedia.org/wiki/F....ile:Ceres,_Earth_%26 [credit: NASA]
Dawn Glimpses Ceres’ North Pole http://www.jpl.nasa.gov/news/n....ews.php?release=2015 [credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA]
Ceres cutaway http://commons.wikimedia.org/w....iki/File:Ceres_Cutaw [credit: NASA, ESA, and A. Feild (STScI)]
Bright Spot on Ceres Has Dimmer Companion http://www.jpl.nasa.gov/spacei....mages/details.php?id [credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA]
Vesta http://en.wikipedia.org/wiki/4...._Vesta#/media/File:V [credit: NASA/JPL-Caltech/UCAL/MPS/DLR/IDA]
Lutetia http://en.wikipedia.org/wiki/2....1_Lutetia#/media/Fil [credit: ESA]
Gaspra http://commons.wikimedia.org/w....iki/File:Galileo_Gas [credit: NASA]
Steins http://neo.ssa.esa.int/image/image_gallery?uuid=db747cf5-9d21-405e-bcdb-e70fe475edc9&groupId=10157&t=1340734455649 [credit: ESA/Osiris]
Mathilde http://neo.jpl.nasa.gov/images/mathilde1.jpg [credit: NEAR Spacecraft Team, JHUAPL, NASA]
Ida http://en.wikipedia.org/wiki/2....43_Ida#/media/File:2 [credit: NASA/JPL]
Kleopatra http://apod.nasa.gov/apod/ap000510.html [credit: Stephen Ostro et al. (JPL), Arecibo Radio Telescope, NSF, NASA]
An artist's conception of two Pluto-sized dwarf planets in a collision around Vega. http://en.wikipedia.org/wiki/M....ethods_of_detecting_ [credit: NASA/JPL-Caltech/T. Pyle (SSC)]
Itokawa http://apod.nasa.gov/apod/ap140209.html [credit: ISAS, JAXA]
An artist's illustration showing two asteroid belts and a planet orbiting Epsilon Eridani http://en.wikipedia.org/wiki/E....psilon_Eridani#/medi [credit: NASA/JPL-Caltech]
Near-Earth Asteroids http://www.jpl.nasa.gov/images..../asteroid/20130204/a [credit: NASA/JPL-Caltech]
Lagrange Points Diagram http://en.wikipedia.org/wiki/T....rojan_(astronomy)#/m [credit: Wikimedia Commons]
TK7 http://en.wikipedia.org/wiki/2....010_TK7#/media/File: [credit: NASA/JPL-Caltech/UCLA]
165347 Philplait http://www.slate.com/content/d....am/slate/blogs/bad_a [credit: Larry Denneau/Pan-STARRS via Amy Mainzer]

In which Jacob Clifford and Adriene Hill teach you about Economic Systems and Macroeconomics. So, economics is basically about choices. We'll look at some of the broadest economic choices when we talk about the difference between planned economies and market economies. We'll get into communism, socialism, command economies, and capitalism. We'll look at how countries choose the kind of system they're going to use (spoiler alert: many end up with mixed economies). We'll also look into how individuals make economic choices.

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

Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Mark Brouwer, Jan Schmid, Anna-Ester Volozh, Robert Kunz, Jason A Saslow, Christian Ludvigsen, Chris Peters, Brad Wardell, Beatrice Jin, Roger C. Rocha, Eric Knight, Jessica Simmons, Jeffrey Thompson, Elliot Beter, Today I Found Out, James Craver, Ian Dundore, Jessica Wode, SR Foxley, Sandra Aft, Jacob Ash, Steve Marshall

TO: Everyone
FROM: Martin

To gild refined gold is just silly.


TO: Dana
FROM: Cameron

Still holding out. We're going to make it!

Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever:

Raymond Cason, Marcel Pogorzelski, Cowgirlgem, Chua Chen Wei, Catherine Emond, Victoria Uney, Robin Uney, Damian Shaw,
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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 and molecules take up space and for pressure because they're attracted to each other; that Einstein was behind a lot more of what we know today than most people realize; and how a Dutch scientist named Johannes van der Waals figured out those correction factors in the late 19th century and earned a Nobel Prize for his efforts.

Table of Contents
Constants in the Gas Laws Aren't all that Constant 1:20
The Ideal Gas Law has to be Corrected for Volume and Pressure 3:26
Einstein was the Bomb 5:02
Van Der Waals Equation 9:38
Never Give Up! 10:08

--
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This week Craig Benzine takes a first look at the judicial branch. It's pretty easy to forget that the courts, and the laws that come out of them, affect our lives on a daily basis. But how exactly these decisions are made and where each law's jurisdiction starts and ends can get pretty complicated. So complicated in fact that you may want to smash something. But don't worry, Craig will clear the way.

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

Support is provided by Voqal: http://www.voqal.org

All Flickr.com images are licensed under Creative Commons by Attribution 2.0
http://creativecommons.org/lic....enses/by/2.0/legalco

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In this episode, Hank welcomes you to the new age, to the new age, welcome to the new age. Here he'll talk about transmutation among elements, isotopes, calculating half-life, radioactive decay, and spontaneous fission.

SUBBABLE MESSAGE:

"To Crash Course
From Shawn, Mike, Sophia, and Jake"

"Thank you for using humor while educating and inspiring."

--
Table of Contents

Radioactivity
Transmutation Among Elements and Isotopes
Calculating Half-Life
Radioactive Decay
Spontaneous Fission
--
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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 available on DVD! http://dft.ba/-8css

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Table of Contents
1) The Theory of Evolution 1:49
2) Fossils 2:42
3) Homologous Structures 4:36
4) Biogeography 7:02
5) Direct Observation 8:52

References for this episode can be found in the Google document here: http://dft.ba/-2Oyu

evolution, theory, biology, science, crashcourse, genetics, gene, facts, fossil, fossil record, dinosaur, extinct, extinction, organism, dorudon, rodhocetus, vestigial, structure, similarity, homologous structure, related, relationship, morganucodon, fore limb, hind limb, vertebrate, molecule, DNA, RNA, chimpanzee, fruit fly, biogeography, marsupial, finches, direct observation, drug resistance, resistance, selective pressure, italian wall lizard Support CrashCourse on Subbable: http://subbable.com/crashcourse

In which John Green teaches you how to assess the sources of information you find on the internet. The growing suspicion of expertise is a growing problem on the internet, and it can be very difficult to figure out which sources are authoritative. In this episode John offers some strategies to help you identify credible sources and take into account a source's point of view.

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

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MediaWise is supported by Google.

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Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Eric Prestemon, Sam Buck, Mark Brouwer, Naman Goel, Patrick Wiener II, Nathan Catchings, Efrain R. Pedroza, Brandon Westmoreland, dorsey, Indika Siriwardena, James Hughes, Kenneth F Penttinen, Trevin Beattie, Satya Ridhima Parvathaneni, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, SR Foxley, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Malcolm Callis, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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** Re-uploaded because there was an error with a map **

You might have recognized the names of some of the Greek natural philosophers. They were individuals with quirky theories, and we have records about them. But they weren’t the only people making knowledge back in the day. Today, Hank takes us to India to talk Vedas, Maurya Empires, and some really good doctoring.

***

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Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom.

In which John Green teaches you about what is often called the Reagan Era. Mainly, it covers the eight years during which a former actor who had also been governor of the state of California was president of the United States. John will teach you about Reagan's election victory over the hapless Jimmy Carter, tax cuts, Reagan's Economic Bill of Rights, union busting, and the Iran-Contra among other things. Learn about Reagan's domestic and foreign policy initiatives, and even a little about Bonzo the Chimp.

Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. Ronald Reagan signalled a shift to conservative values on the role of government, discussed in his "Time for Choosing" Speech: https://www.commonlit.org/text....s/from-a-time-for-ch
America turned to President Reagan for comfort in times of tragedy, including following the Challenger Disaster: https://www.commonlit.org/text....s/ronald-reagan-on-t

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As the Roman Empire fell, so did the theater. If there's anyone who hates theater and actors more than Romans, it's early Christians. As Christianity ascended in the west, theater declined. But, fear not. This isn't the end of the series. Theater would be back, and in the best subversive theater-y fashion, it would return via the Catholic mass!

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Mark Brouwer, Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Divonne Holmes à Court, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, Robert Kunz, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, Evren Türkmenoğlu, Alexander Tamas, D.A. Noe, Shawn Arnold, mark austin, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, Cody Carpenter, Annamaria Herrera, William McGraw, Bader AlGhamdi, Vaso, Melissa Briski, Joey Quek, Andrei Krishkevich, Rachel Bright, Alex S, Mayumi Maeda, Kathy & Tim Philip, Montather, Jirat, Eric Kitchen, Moritz Schmidt, Ian Dundore, Chris Peters, Sandra Aft, Steve Marshall
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Part 2. I can't remember what part I'm in, and I don't feel like watching this again to find out. So it'll be a surprise! ^_^

Enciclopédia Lusa Videojogos (www.videojogos.enciclopedialusa.com)
Introdução do jogo Kung Fu Panda (Xbox 360) - 2008
Também disponível para:
Playstation 2 / Playstation 3 / Macintosh / PC Windows / Nintendo DS

Mestre Shifu terá que usar toda a sua habilidade e o seu talento para resgatar os cinco mestres do Kung Fu que foram raptados pelo terrível Tai Lung! Muita ação e adrenalina aguardam por você no oitavo capítulo de Kung Fu Panda! Vamos apertar start?

Descrizione

Kung Fu Panda: Showdown of Legendary Legends - Gameplay Walkthrough Part 1 - ENDING [ HD ]
►Twitter : https://twitter.com/Xcagegame
►Future Walkthroughs / Gameplays: http://goo.gl/wCvNro
►Plattforms: 3DS WiiU Xbox One PS3 & PS4
►Release Dates: EU November 27 ; US December 1

Descrizione

We weren't going to do a gameplay of Kung Fu Panda but we decided to check it out because Fu Panda is my favorite animated movie from DreamWorks Animation.

Kung Fu Panda - Part 1 Walkthrough (Xbox 360)
http://youtu.be/a_3z_PFclrM

Kung Fu Panda - Part 2 Walkthrough (Xbox 360)
http://youtu.be/y9nHl4df4XY

Kung Fu Panda - Team Survival & Versus Mode (Xbox 360)
http://youtu.be/b6MO8ISkcLo

Kung Fu Panda - Part 3 Walkthrough (Xbox 360)
http://youtu.be/6pbcSS2QPOM

Kung Fu Panda - Part 4 Walkthrough (Xbox 360)
http://youtu.be/n1hyhqt5Rs0

Kung Fu Panda - Part 5 Walkthrough (Xbox 360)
http://youtu.be/pZg67eD6ehE

TAGG Gets Beat Up - Kung Fu Panda - Versus Mode (Xbox 360)
http://youtu.be/kh8BwS0HmJ4

Kung Fu Panda - Part 6 Walkthrough (Xbox 360)
http://youtu.be/Jky5SlFZvck

Kung Fu Panda - Part 7 Walkthrough (Xbox 360)
http://youtu.be/ssQ7Jzg1XSk
______________________________________________________

Check out my channel for more gameplays and commentary's.
http://www.youtube.com/user/Th....e8bittheater?feature

The Asian Guy Gamer Vlogs
http://www.youtube.com/user/TheAsianGuyGamerVlog

The Asian Guy Gamer Facebook
https://www.facebook.com/TheAsianGuyGamerShow

This is the best, most natural Kinect game I have ever played. Awesome.. Kung-Fu High Impact

É chegada a hora da cerimônia que irá decidir o maior guerreiro de todos os tempos, aquele de tanta habilidade e perícia nas artes marciais que seria confiado com a proteção de todo o Reino . E Po não quer perder a cerimônia de jeito nenhum. Acompanhe com a gente a saga do urso mais atrapalhado das artes marciais no canal Aperte Start!