yt:channel:UCX6b17PVsYBQ0ip5gyeme-Q UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2006-05-20T02:43:42+00:00 2015-04-24T22:02:26+00:00 yt:video:mFm3yA1nslE mFm3yA1nslE UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-27T21:00:00+00:00 2015-04-27T21:06:14+00:00 Taste & Smell: Crash Course A&P #16 Hank resists the urge to devour a slice of pizza so that he can walk you through the way we experience our major special senses. It all boils down to one thing: sensory cells translating chemical, electromagnetic, and mechanical stimuli into action potentials that our nervous system can make sense of. Today we're focusing on smell (olfaction) and taste (gustation), which are chemical senses that call on chemoreceptors. As usual, we'll begin with a quick look at how these things can go wrong. Table of Contents Anatomy and Physiology of Smell 2:26 The Olfactory Sensory Neurons 3:01 Receptors → Glomerulus → Mitral Cells → Brain 3:47 Taste Receptor Epithelial Cells 7:30 Receptors Trigger Action Potentials to Four Different Cranial Nerves 8:26 *** Crash Course is now on Patreon! You can support us directly (and have your contributions matched by Patreon through April 30th!) 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, Simun Niclasen, Brad Wardell, Roger C. Rocha, Jan Schmid, Elliot Beter, Nevin Spoljaric, Sandra Aft, SR Foxley, Jessica Simmons, Stefan R. Finnerup, Jason A Saslow, Robert Kunz, Jessica Wode, Mike Drew, Steve Marshall, Anna-Ester Volozh, Christian Ludvigsen, Jeffrey Thompson, James Craver ***SUBBABLE MESSAGES*** TO: Rachel FROM: Alex I Love You! -- TO: Crash Course FROM: James Earle I loved Subbable. I'll see you on Patreon. ***SUPPORTER THANK YOU!*** 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: Suzanne, Dustin & Owen Mets Amy Fuller Simon Francis Max Bild-Enkin Ines Krueger King of Conquerors Gareth Mok Chris Ronderos, Dallas, TX Gabriella Mayer jeicorsair Tokyo Coquette Boutique Konradical the nonradical -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:UVboes68PkQ UVboes68PkQ UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-24T22:02:26+00:00 2015-04-27T15:44:01+00:00 Congressional Delegation: Crash Course Government and Politics #13 In which Craig Benzine teaches you about delegation, and informal powers. What are all these federal agencies about? Well, the president has a lot of stuff to do as the chief executive, and as much as Americans like to talk about personal responsibility, the president can't really do all this stuff alone. Because it's a huge job! Same deal with Congress. So, they delegate authority. This is where all the government agencies and stuff come from. The Congress creates them to actually get around to enforcing laws. You'll learn about stuff like OSHA, and the FDA, and maybe even the FCC. Although you hear an occasional complaint about bureaucracies and such, the business of government wouldn't get done without agencies and delegation. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:ZFUgy3crCYY ZFUgy3crCYY UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-24T18:33:31+00:00 2015-04-27T15:39:29+00:00 Venus: Crash Course Astronomy #14 Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight -- but it’s beauty is best looked at from afar. Even though Mercury is closer to the sun, Venus is the hottest planet in the solar system, due to a runaway greenhouse effect, and has the most volcanic activity in the solar system. Its north and south poles were flipped, causing it to rotate backwards and making for very strange days on this beautiful but inhospitable world. This episode is brought to you by Squarespace http://www.squarespace.com/crashcourse -- Table of Contents Venus’s Size and Atmosphere 3:09 Hottest Planet in the Solar System 4:04 Slow Clockwise Rotation 6:02 Tremendous Volcanic Activity 8:31 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Naked-eye Venus photo taken by Phil Plait Phases of Venus http://commons.wikimedia.org/wiki/File:Phases-of-Venus2.jpg [credit: Wikimedia Commons] 2012 Venus Transit https://www.youtube.com/watch?v=34mXua1n_FQ [credit: NASA] Black drop effect in 2004 http://en.wikipedia.org/wiki/Black_drop_effect#mediaviewer/File:BlackDrop-Venus-Transit.jpg [credit: Vesta] Venus Transit http://www.nasa.gov/images/content/657111main_1-SOT_120606_venus_ca_nc_yellow_001_color_full.jpg [credit: JAXA/NASA/Lockheed Martin] Venus in real colors http://en.wikipedia.org/wiki/Venus#mediaviewer/File:Venus-real_color.jpg [credit: NASA] Earth http://visibleearth.nasa.gov/view.php?id=57723 [credit: NASA Goddard Space Flight Center, Image by Reto Stöckli] Venus http://www.msss.com/images/science/venus180hem_magellan_big.jpg [credit: NASA/JPL-Caltech/Magellan Project] Atmospheric Drag on Venus https://www.youtube.com/watch?v=aRAonBSIBck [credit: NASA] Lakshmi Planum and Maxwell Montes http://en.wikipedia.org/wiki/Venus_snow#mediaviewer/File:Maxwell_Montes_of_planet_Venus.jpg [credit: NASA/JPL] Artist's impression of the surface of Venus http://sci.esa.int/science-e-media/img/59/VenusSurface.jpg [credit: ESA] Venera Images http://planetimages.blogspot.com/ [credit: Ted Stryk] Venus Globe http://en.wikipedia.org/wiki/Venus#mediaviewer/File:Venus_globe.jpg [credit: NASA] Impact craters on the surface of Venus http://en.wikipedia.org/wiki/Venus#mediaviewer/File:Mgn_p39146.png [credit: Wikimedia Commons] Idunn Mons http://photojournal.jpl.nasa.gov/figures/PIA13001_fig1.jpg [credit: NASA/JPL-Caltech/ESA] Pancake Volcanoes http://en.wikipedia.org/wiki/Pancake_dome#mediaviewer/File:PIA00084_Eistla_region_pancake_volcanoes.jpg [credit: NASA/Jet Propulsion Laboratory] yt:video:RQOJgEA5e1k RQOJgEA5e1k UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-23T17:44:32+00:00 2015-04-27T13:26:43+00:00 Introduction to Intellectual Property: Crash Course IP 1 This week, Stan Muller launches the Crash Course Intellectual Property mini-series. So, what is intellectual property, and why are we teaching it? Well, intellectual property is about ideas and their ownership, and it's basically about the rights of creators to make money from their work. Intellectual property is so pervasive in today's world, we thought you ought to know a little bit about it. We're going to discuss the three major elements of IP: Copyright, Patents, and Trademarks. ALSO, A DISCLAIMER: he views expressed in this video do not necessarily reflect those of the United States Copyright Office, the Library of Congress, or the United States Government. The information in this video is distributed on "As Is" basis, without warranty. While precaution has been taken in the preparation of the video, the author shall not have any liability to any person or entity with respect to any loss or damage caused or alleged to be caused directly or indirectly by any information contained in the work. This video is intended for educational purposes only and is not intended to be, nor should it be construed as, legal advice. Intellectual property law is notoriously fact specific, and this video (or any other single resource) cannot substitute for expert guidance from qualified legal counsel. To obtain legal guidance relevant to your particular circumstances, you should consult a qualified lawyer properly licensed in your jurisdiction. You can contact your local bar association for assistance in finding such a lawyer in your area. The Magic 8 Ball is a registered Trademark of Mattel Citation 1: Brand, Stewart. Quote from speech given at first Hackers' Conference, 1984 Citation 2: Plato, Phaedrus. 390 BC p. 157 Crash Course is now on Patreon! You can support us directly (and have your contributions matched by Patreon through April 30th!) 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: Suzanne, Dustin & Owen Mets, Amy Fuller, Simon Francis Max Bild-Enkin, Ines Krueger, King of Conquerors Gareth Mok, Chris Ronderos, Gabriella Mayer, jeicorsair, Tokyo Coquette Boutique, Konradical the nonradical TO: Everyone FROM: Bob You CAN'T be 'Based off' of anything! BASED ON! TO: the world FROM: denial Nou Ani Anquietas. Hic Qua Videum. Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:qqU-VjqjczE qqU-VjqjczE UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-20T21:00:00+00:00 2015-04-27T19:43:54+00:00 Parasympathetic Nervous System: Crash Course A&P #15 This week we are looking at your parasympathetic division, which is the "resting and digesting" unit. Unfortunately, learning about this de-stressing division also involves a whole lot of memorization. Don't worry, though - we've got some mnemonic devices to help you out! -- Table of Contents Parasympathetic Nervous System 0:40 Structural Differences from the Sympathetic System 1:41 Twelve Cranial Nerves 4:02 Vagus Nerve 6:40 *** Crash Course is now on Patreon! You can support us directly (and,until April 30th, have your contributions matched by Patreon!) 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, Simun Niclasen, Brad Wardell, Roger C. Rocha, Jan Schmid, Elliot Beter, Nevin Spoljaric, Sandra Aft, SR Foxley, Jessica Simmons, Stefan R. Finnerup, Jason A Saslow, Robert Kunz, Jessica Wode, Mike Drew, Steve Marshall, Anna-Ester Volozh, Christian Ludvigsen, Jeffrey Thompson, James Craver ***SUBBABLE MESSAGES*** TO: Laura Hewett FROM: Amy Paez Greetings from the other side of the world! DFTBA -- TO: Wesley FROM: G Distance is created by the Desert Otherworld, therefore we shall not be destroyed. ***SUPPORTER THANK YOU!*** 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: Alex Lee CPA Liz Siron Kathryn "Fallout Shelter" Plimpton Daniel McLaughlin Kate Plimpton Thanks Zujus! Charlie Kuski Historyboobs Rachel Lee Felicia Gilcris -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:fnHb-zyWh14 fnHb-zyWh14 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-17T22:43:21+00:00 2015-04-27T20:36:25+00:00 Presidential Powers 2: Crash Course Government and Politics This week Craig continues our conversation on presidential powers by looking at those NOT found in the Constitution - implied or inherent powers. We’ll talk about how the president uses his or her power to negotiate executive agreements, recommend legislative initiatives, instate executive orders, impound funds, and claim executive privilege in order to get things done. Implied powers are kind of tough to tack down, as they aren’t really powers until they’re asserted, but once the they are, most subsequent presidents chose not to give them up. So we’ll try to cover those we’ve seen so far and talk a little bit about reactions to these sometimes controversial actions from the other branches of Congress. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:P3GkZe3nRQ0 P3GkZe3nRQ0 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-16T21:00:00+00:00 2015-04-27T20:06:50+00:00 Mercury: Crash Course Astronomy #13 Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has water ice hiding beneath its surface. -- Table of Contents Closest Planet to the Sun 0:03 Rotation Locked to its 2 to 3 Orbit Ratio 3:10 Deep Crater Water Ice 8:39 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Mercury relief in Olomouc: http://commons.wikimedia.org/wiki/File:Mercury_relief_in_Olomouc.jpg [credit: Michal Maňas] Mercury: Phil Plait Mercury in color: http://en.wikipedia.org/wiki/File:Mercury_in_color_c1000_700_430.png [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington] Earth Based View of Mercury: http://airandspace.si.edu/explore-and-learn/multimedia/detail.cfm?id=3726 [credit: Catalina Observatory] Caloris Basin: http://apod.nasa.gov/apod/image/1503/PIA19216MessengerCaloris.jpg [credit: NASA, Johns Hopkins Univ. APL, Arizona State U., CIW] MESSENGER photos: http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/EW1010234404_500_web.jpg http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/EN0108830230M.jpg http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/EW0224377798G.nomap.png [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington] Mercury’s core: http://astrosun2.astro.cornell.edu/~jlm/out/Mercury/mercury_NSF_printsize.jpg [credit: Nicolle Rager Fuller, National Science Foundation] Mercury’s Ice Lockers: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11184 [credit: NASA Goddard Space Flight Center/Massachusetts Institute of Technology/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington] Mercury’s Tail: http://geeked.gsfc.nasa.gov/wp-content/uploads/2011/03/Mercury_exosphere_600-full.jpg [credit: NASA] yt:video:0IDgBlCHVsA 0IDgBlCHVsA UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-13T21:00:01+00:00 2015-04-27T18:22:02+00:00 Sympathetic Nervous System: Crash Course A&P #14 Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system. -- Table of Contents Sympathetic Nervous System Controls the Body's Stress Response 0:26 How Signals Travel to Effectors 1:48 Acetylcholine in the Ganglion 3:55 Norepinephrine at the Effector 4:42 Norepinephrine and Epinephrine Are Secreted as Hormones 5:35 Alpha Receptors Cause Smooth Muscles to Constrict 7:14 Beta Receptors Cause Smooth Muscles to Relax 7:27 *** Crash Course is now on Patreon! You can support us directly (and, until April 30th, have your contributions matched by Patreon!) 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, Simun Niclasen, Brad Wardell, Roger C. Rocha, Jan Schmid, Elliot Beter, Nevin Spoljaric, Sandra Aft, SR Foxley, Jessica Simmons, Stefan R. Finnerup, Jason A Saslow, Robert Kunz, Jessica Wode, Mike Drew, Steve Marshall, Anna-Ester Volozh, Christian Ludvigsen, Jeffrey Thompson, James Craver ***SUBBABLE MESSAGES*** TO: Ariela FROM: Gavi I love you so much, stay awesome as always! -- TO: Josiah P. FROM: Amy P. I love you! ***SUPPORTER THANK YOU!*** 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: Pankaj Gurung Kelley Culp Joshua McKee Amory Olson: Kasson-Mantorville High School Science Instructor Jack Thakar Arrow Worthy Magnus "Krox" Krokstad Rachel Lee Brian J. Rolf Sylien -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:5l02sK5LovI 5l02sK5LovI UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-11T16:33:25+00:00 2015-04-27T13:07:51+00:00 Presidential Power: Crash Course Government and Politics #11 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 policy, the Commander in Chief is a pretty powerful person, but actually not as powerful as you might think. The Constitution also limits presidential powers to maintain balance among the three branches of government. Next week we'll talk about the president's powers NOT mentioned in the Constitution - implied powers. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:mCzchPx3yF8 mCzchPx3yF8 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-10T01:04:53+00:00 2015-04-27T17:44:19+00:00 The Moon: Crash Course Astronomy #12 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 Millions of Moons 0:27 Big Impact on Little Earth 3:42 Craters and Maria 2:15 Water on the Moon? H2O Yeah! 8:06 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Moon Phase 47.7% http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=3894 [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio] The Blue Marble http://visibleearth.nasa.gov/view.php?id=57723 [credit: Credit: NASA Goddard Space Flight Center Image by Reto Stöckli] Dramatic Moonset http://www.eso.org/public/images/potw1023a/ [credit: G.Gillet/European Southern Observatory] Structure of the Moon: http://en.wikipedia.org/wiki/Moon#mediaviewer/File:Moon_diagram.svg [credit: Kelvin Song via WikiMedia Commons] Crater Science Investigations: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10792 [credit: NASA/Goddard Space Flight Center] Lunar crater Daealus http://commons.wikimedia.org/wiki/File:Lunar_crater_Daedalus.jpg [credit: NASA] Mare Humorum http://commons.wikimedia.org/wiki/File:Mare_Humorum_-_LROC_-_WAC.JPG [credit: NASA] Luna 3: http://nssdc.gsfc.nasa.gov/imgcat/html/object_page/lu3_1.html [credit: NASA] Farside!: http://lroc.sese.asu.edu/posts/298 [credit: NASA/GSFC/Arizona State University] Theia Earth Collision: http://io9.com/the-incredibly-violent-history-of-earths-moon-1098565110 [credit: Ron Miller, used with permission] Earth Seen From Early Moon: http://io9.com/the-incredibly-violent-history-of-earths-moon-1098565110 [credit: Ron Miller, used with permission] Moon Struck: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10931 [credit: NASA's Goddard Space Flight Center] Tycho: http://www.nasa.gov/images/content/417417main_tychofull-20100115-full.jpg [credit: NASA/Goddard/Arizona State University] Double crater on the moon: http://www.esa.int/spaceinimages/Images/2006/09/Double_crater_on_the_Moon [credit: ESA/SPACE-X (Space Exploration Institute)] Stream of Craters: http://www.nasa.gov/mission_pages/LRO/multimedia/lroimages/lroc_20090810_craterstream.html [credit: NASA/Goddard Space Flight Center/Arizona State University] Full Moon: http://en.wikipedia.org/wiki/Moon#mediaviewer/File:FullMoon2010.jpg [credit: Gregory H. Revera] Rille on the valley floor, photographic mosaic from Apollo 15: http://en.wikipedia.org/wiki/Schroter%27s_Valley#mediaviewer/File:Vallis_Schroteri.jpg [credit: NASA] New Views of Lunar Pits: http://lroc.sese.asu.edu/posts/230 [credit: NASA/GSFC/Arizona State University] Crater Erlanger: http://www.nasa.gov/mission_pages/Mini-RF/multimedia/erlanger_crater.html [credit: NASA/GSFC/Arizona State University] yt:video:71pCilo8k4M 71pCilo8k4M UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-06T22:33:29+00:00 2015-04-27T17:28:25+00:00 Autonomic Nervous System: Crash Course A&P #13 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 nerve fibers originate and where their ganglia are located - drive their distinct anatomical functions, making your sympathetic nervous system the "fight or flight" while your parasympathetic nervous system is for "resting and digesting." -- Table of Contents The Basic Two-Part System of the Autonomic Nervous System 0:48 Sympathetic Nervous System 2:33 Parasympathetic Nervous System 2:54 Their Nerve Fibers Originate in Different Parts of the Body 3:22 Sympathetic Ganglia Are Close to the Spinal Cord 4:36 Parasympathetic Ganglia Are Close to Their Effectors 4:59 *** Crash Course is now on Patreon! You can support us directly (and, until April 30th, have your contributions matched by Patreon!) 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, Simun Niclasen, Brad Wardell, Roger C. Rocha, Jan Schmid, Elliot Beter, Nevin Spoljaric, Sandra Aft, SR Foxley, Jessica Simmons, Stefan R. Finnerup, Jason A Saslow, Robert Kunz, Jessica Wode, Mike Drew, Steve Marshall, Anna-Ester Volozh, Christian Ludvigsen, Jeffrey Thompson, James Craver ***SUBBABLE MESSAGES*** TO: SEM Students FROM: Mrs. S You are confident and courageous! I believe in you! DFTBA! -- TO: Zachary FROM: She who gave you life! You, like the Mongols, will always be the exception. ***EPISODE CO-SPONSORS*** Link Kelly Naylor - http://www.aertenart.com Tim Webster Steven Meekel ***SUPPORTER THANK YOU!*** 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: Caitlin Steinert, BryanGriffith.com, Maia McGuire, That one guy from Midland who teaches science at highschool, Michael Longwell, Justice H, Martha (splicegrrl), Casey Rule, Manuel Kovats, and @simplscientist -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:k7dTDjRnBqU k7dTDjRnBqU UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-04T23:39:21+00:00 2015-04-27T20:58:18+00:00 Democracy, Authoritarian Capitalism, and China: Crash Course World History 230 In which John Green teaches you about the end of World History, and the end of the world as we know it, kind of. For the last hundred years or so, it seemed that one important ingredient for running an economically successful country was a western-style democratic government. All evidence pointed to the idea that capitalist representative democracies made for the best economic outcomes. It turns out that isn't the only way to succeed. In the last 40 years or so, authoritarian capitalism as it's practiced in places like China and Singapore has been working really, really well. John is going to look at these systems and talk about why they work, and he's even going to make a few predictions about the future. Also, thanks for watching this series. It has been amazingly fun to create, and we appreciate all of you. Citation 1: John Micklethwait & Adrian Woolridge. The Fourth Revolution: The Global Race to Reinvent the State. Penguin, New York 2014 p. 68 Citation 2: Han Fook Kwang, ed., Lee Kuan Yew: The Man and His Ideas. Times Edition: 1997 p194 Citation 3: Quoted in Micklethwait & Woolridge, p155 Citation 4: Micklethwait & Woolridge, p159 Crash Course is now on Patreon! You can support us directly (and, for the next month, have your contributions matched by Patreon!) by signing up at http://www.patreon.com/crashcourse TO: Noura M. AlMohaimeed FROM: Bodour K. AlGhamdi Happy Birthday to my easily excitable friend and companion, Noura. TO: Hank & John Green FROM: Owain Blackwood MESSAGE: Thanks a billion for helping me get into medical school! 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: Sam Caldwell Sam Caldwell, again www.justplainsomething.com Leanne Gover Moti Lieberman Julie Anne Mathieu Jessica Baker Teodora Miclaus Christopher Keelty Anthony "Fishbot Engineer" M. Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:WEZDcmEeig0 WEZDcmEeig0 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-03T20:29:18+00:00 2015-04-27T14:03:10+00:00 Outtakes #1: Crash Course Government and Politics Today we look back on our first 10 episodes of Crash Course Government and Politics! But rest assured, no lines will be flubbed - or at least Craig seems to think so. Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids yt:video:w-9gDALvMF4 w-9gDALvMF4 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-04-02T21:12:43+00:00 2015-04-27T20:36:16+00:00 The Earth: Crash Course Astronomy #11 Phil starts the planet-by-planet tour of the solar system right here at home, Earth. -- Table of Contents Earth is a Planet 0:03 Layers of Earth 1:25 The Magnetic Field 5:10 Atmosphere and the Human Influence 6:14 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Planets: Mercury: http://apod.nasa.gov/apod/ap080116.html Venus: http://www.msss.com/all_projects/magellan.php Earth: http://earthobservatory.nasa.gov/IOTD/view.php?id=36019 Mars: http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-mars.html Jupiter: http://www.nasa.gov/mission_pages/cassini/multimedia/pia04866.html Saturn: http://www.slate.com/content/dam/slate/blogs/bad_astronomy/2014/06/Ten%20Years%20at%20Saturn/cassini_ugarkovic_saturn.jpg.CROP.original-original.jpg [credit: Photo by NASA/JPL/Space Science Institute/Gordan Ugarkovic] Uranus: http://hubblesite.org/newscenter/archive/releases/1998/35/image/a/ Neptune: http://www.slate.com/blogs/bad_astronomy/2014/05/15/neptune_voyager_images_updated_for_portrait_of_the_eighth_planet.html Ulaan Tsutgalan waterfall: http://en.wikipedia.org/wiki/Orkhon_River#mediaviewer/File:Ulaan-Tsutgalan-waterfall.jpg Perspective on a cloudy day: http://www.slate.com/blogs/bad_astronomy/2014/09/05/clouds_from_space_photo_by_iss_astronaut_oleg_artemyev.html [credit: Oleg Artemyev] Rain droplets: http://commons.wikimedia.org/wiki/File:Rain_droplets.jpg Yellowston Mud Pot: http://en.wikipedia.org/wiki/Liquid_bubble#mediaviewer/File:Yellowstone_mud_pot_p1090998.jpg Sea otters holding hands: http://he.wikipedia.org/wiki/%D7%9C%D7%95%D7%98%D7%A8%D7%AA_%D7%94%D7%99%D7%9D#mediaviewer/File:Sea_otters_holding_hands.jpg Continental Drift: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=73 [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio] Mission to Bennu: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11697 [credit: NASA's Goddard Space Flight Center Conceptual Image Lab] http://www.es.ucsc.edu/~glatz/GarysImages/surf.gif [credit: San Diego Supercomputer Center / Nature] Excerpt from "Dynamic Earth" http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11003 [credit: NASA/Goddard Space Flight Center] Clouds: http://www.beachfrontbroll.com/2013/07/BrightSkyandClouds.html Aurora Borealis: https://www.youtube.com/watch?v=4YjCIoPHT0U [credit: Fotograf Göran Strand] Waves On Rocky Shore 1080 (2011): https://archive.org/details/wavesOnRockyShore-1080 A Year In The Life Of Earth’s CO2: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11719 [credit: NASA's Goddard Space Flight Center] NASA | 2014 Continues Long-Term Global Warming: https://www.youtube.com/watch?v=WtPkFBbJLMg yt:video:QY9NTVh-Awo QY9NTVh-Awo UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-03-30T21:00:01+00:00 2015-04-27T17:13:28+00:00 Peripheral Nervous System: Crash Course A&P #12 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 processes information, the reflex arc, and what your brain has to say about pain. Table of Contents Peripheral Nervous System 0:38 Afferent and Efferent Divisions 5:42 Information and Responses to Pain 3:12 Five Steps of the Reflex Arc 4:35 Different Kinds of Reflexes 6:44 What the Brain Says About Pain 8:09 *** Crash Course is now on Patreon! You can support us directly (and, for the next month, have your contributions matched by Patreon!) by signing up at http://www.patreon.com/crashcourse ***SUBBABLE MESSAGES*** TO: Brayden and Cody FROM: Dad For my favourite sons. Remember that Science Rocks!! -- TO: CraftLit Listeners FROM: Heather at CraftLit Big Hugs to CraftLit Fans Who (also) Love Crash Course! ***SUPPORTER THANK YOU!*** 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: Dan Rajan Josh Greenberg @wordlessrage Tanmay Sheth Chriztopher North Teodora Miclaus Jessica Baker Julie Anne Mathieu Moti Lieberman Leanne Gover www.justplainsomething.com -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids