yt:channel:UCX6b17PVsYBQ0ip5gyeme-Q UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2006-05-20T02:43:42+00:00 yt:video:QjLcLguoKC4 QjLcLguoKC4 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-07-10T23:48:09+00:00 2015-07-11T16:26:03+00:00 Judicial Decisions: Crash Course Government and Politics #22 Today, Craig Benzine is going to dive into the factors that influence judicial decisions. As you may have noticed, the Supreme Court recently handed down some pretty big decisions on same-sex marriage (in Obergefell v Hodges) and the Affordable Care Act (in King v. Burwell). Now, it's important to remember that these decisions are not made in a vacuum, but influenced by the other branches of government, political affiliations, and past court decisions. We’re also talk about a judge’s judicial philosophy - that is their relative restraint or activism in making decisions on laws. Judicial restraint is often equated with conservatism, but as we’ll show you, this is not always the case. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Support is provided by Voqal: http://www.voqal.org All attributed images are licensed under Creative Commons by Attribution 2.0 https://creativecommons.org/licenses/by/2.0/legalcode 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:jjy-eqWM38g jjy-eqWM38g UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-07-09T22:00:00+00:00 2015-07-11T16:28:06+00:00 Light: Crash Course Astronomy #24 In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s temperature, density, spin, motion, and chemical composition. Crash Course Chemistry posters are available at DFTBA.com http://www.dftba.com/crashcourse -- Table of Contents Light is a Form of Energy 0:39 Wavelength Tells Us Its Energy and Color 0:59 Spectroscopy 7:28 -- 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 Wavelengths http://imagine.gsfc.nasa.gov/educators/gammaraybursts/starchild/Image6.gif [credit: Imagine the Universe! / NASA] Observatories across spectrum http://imagine.gsfc.nasa.gov/Images/science/observatories_across_spectrum_full.jpg [credit: Imagine the Universe! / NASA] Red hot spiral hotplate http://freefoodphotos.com/imagelibrary/cooking/slides/hot_electric_cooker.html [credit: freefoodphotos.com] The Crab Nebula http://en.wikipedia.org/wiki/Nebula#/media/File:Crab_Nebula.jpg [credit: NASA, ESA, J. Hester and A. Loll (Arizona State University)] Building the Space Telescope Imaging Spectograph http://imgsrc.hubblesite.org/hu/gallery/db/spacecraft/18/formats/18_print.jpg [credit: NASA] VST images the Lagoon Nebula http://en.wikipedia.org/wiki/Lagoon_Nebula#/media/File:VST_images_the_Lagoon_Nebula.jpg [credit: ESO/VPHAS+ team] Jupiter http://www.nasa.gov/images/content/414987main_pia09339.jpg [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute] Venus http://en.wikipedia.org/wiki/Atmosphere_of_Venus#/media/File:Venuspioneeruv.jpg [credit: NASA - NSSDC Photo Gallery Venus] Ring Around SN 1987a, image 1 http://www.spacetelescope.org/images/opo9714e/ [credit: Jason Pun (NOAO) and SINS Collaboration] Ring Around SN 1987a, image 2 http://www.spacetelescope.org/images/opo9714a/ [credit: George Sonneborn (GSFC) and NASA/ESA] yt:video:3ez10ADR_gM 3ez10ADR_gM UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-07-08T22:34:19+00:00 2015-07-11T16:26:37+00:00 Intro to Economics: Crash Course Econ #1 In which Jacob Clifford and Adriene Hill launch a brand new Crash Course on Economics! So, what is economics? Good question. It's not necessarily about money, or stock markets, or trade. It's about people and choices. What, you may ask, does that mean. We'll show you. Let's get started! 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: My Students FROM: Mrs. Culp Culpzilla's students are amazing! You guys rock! TO: Everyone FROM: Pankaj DFTBA and keep being the exception like the Mongols. 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: Summer Naugle, Minnow, Ilkka Hemmilä, Kaitlyn Celeste, Lee Toran, Sarty, Damian Shaw, Nathaniel "The Skipper" Cruz Chavez, Maura Doyle, Chris, Sander Mutsaers 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:X9ZZ6tcxArI X9ZZ6tcxArI UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-07-06T23:00:01+00:00 2015-07-11T15:53:35+00:00 The Heart, part 1 - Under Pressure: Crash Course A&P #25 Your heart gets a lot of attention from poets, songwriters, and storytellers, but today Hank's gonna tell you how it really works. The heart’s ventricles, atria, and valves create a pump that maintains both high and low pressure to circulate blood from the heart to the body through your arteries, and bring it back to the heart through your veins. You'll also learn what your blood pressure measurements mean when we talk about systolic and diastolic blood pressure. Table of Contents Heart's Ventricles, Atria and Valves Create a Pump 3:25 Maintains Both High and Low Pressure 3:25 Blood Circulates From the Heart to the Body Through Your Arteries 4:47 Blood Circulates From the Body to the Heart Through Your Veins 4:49 Systolic and Diastolic Blood Pressure 7:58 Crash Course Psychology posters available now at DFTBA.com! http://www.dftba.com/crashcourse *** 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 ***SUBBABLE MESSAGES*** TO: My Student FROM: Earle Check out www.youtube.com/amorsciendi for supplementary content. -- TO: Everyone FROM: Magnus Krokstad Keep dreaming! ***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: Damian Shaw, Taylor Garget, Emily Barker, Librarifan, Damian Shaw, Courtney Spurgeon, juliagraph, Katherine Allen, Stephen DeCubellis, Vanessa Benavent -- 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:TuDfZ2Md5x8 TuDfZ2Md5x8 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-07-02T22:59:33+00:00 2015-07-11T16:22:30+00:00 Meteors: Crash Course Astronomy #23 Today Phil helps keep you from ticking off an astronomer in your life by making sure you know the difference between a meteor, meteorite, and meteoroid. When the Earth plows through the stream emitted by a comet we get a meteor shower. Meteors burn up about 100 km above the Earth, but some survive to hit the ground. Most of these meteorites are rocky, some are metallic, and a few are a mix of the two. Very big meteorites can be a very big problem, but there are plans in the works to prevent us from going the way of the dinosaurs. Meteorite Links: Aerolite Meteorites, Inc.: http://www.aerolite.org/ Big Kahuna Meteorites: http://bigkahuna-meteorites.com/ Arizona Skies Meteorites: http://www.arizonaskiesmeteorites.com/ -- Table of Contents What Meteors Are 0:59 Meteor Shower 4:22 What Meteors Are Made Of 7:10 Very Big Meteorites Can Be a Very Big Problem 8:36 -- 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 Shooting star http://dakotalapse.com/wp-content/uploads/2013/02/IMG_5555-reboot1.jpg [credit: Randy Halverson / Dakotalapse.com] Cosmic Fireball Falling Over ALMA http://www.eso.org/public/usa/images/potw1414a/ [credit: ESO / Christoph Malin] Meteor light https://sphotos-b.xx.fbcdn.net/hphotos-ash3/704204_406950402710734_1157020008_o.jpg [credit: Randy Halverson / Dakotalapse.com] Bolide 10/16/14 https://www.youtube.com/watch?v=GZXqmPhd8AQ [credit: reddit user -545-] Meteor Video http://svs.gsfc.nasa.gov/vis/a010000/a010700/a010747/10747_Swift_Asteroid_H264_Good_1280x720_29.97.mov [credit: NASA/Goddard Space Flight Center] Orbit Video http://svs.gsfc.nasa.gov/vis/a000000/a004100/a004159/209PLINEAR-swingAround.slate.HD1080.mp4 [credit: NASA's Scientific Visualization Studio] When Gemini Sends Stars to Paranal http://twanight.org/newTWAN/photos.asp?ID=3003955 [credit: Stephane Guisard] Perseid below space station http://apod.nasa.gov/apod/image/1208/iss028e024847perseid.jpg [credit: NASA] Geminids shower http://www.slate.com/blogs/bad_astronomy/2014/12/15/geminids_meteor_shower_photo.html [credit: Neil Zeller] Cygnus Reentry http://www.slate.com/blogs/bad_astronomy/2014/08/18/fireball_astronauts_photograph_cygnus_resupply_ship_burning_up.html [credit: ESA/NASA] Stony meteorite http://en.wikipedia.org/wiki/File:AllendeMeteorite.jpg [credit: Wikimedia Commons, H. Raab] Iron meteorite http://commons.wikimedia.org/wiki/File:Nickel-iron_meteorite_fragment,_5.5_billion_years_old,_found_near_Flagstaff_AZ_-_Franklin_Institute_-_DSC06707.JPG [credit: Wikimedia Commons, Daderot] Stony iron meteorite http://en.wikipedia.org/wiki/Pallasite#/media/File:Bernham_meteorite_sept_2010.JPG [credit: Wikimedia Commons, Supportstorm] Chondrites http://commons.wikimedia.org/wiki/File:Allende_meteorite,_carbonaceous_chondrite_(14787764392).jpg [credit: Wikimedia Commons, James St. John] Pallasite https://www.flickr.com/photos/jsjgeology/14608975850/ [credit: James St. John] Aftermath of Chelyabinsk Meteor https://www.youtube.com/watch?v=Q9KwK0izt5c [credit: NASA] Near-Earth asteroid 2013 https://www.youtube.com/watch?v=RmPsQdEHyPU [credit: Gianluca Masi, permission granted by author] Dinosaur drawing courtesy of Zach Weiner of Saturday Morning Breakfast Cereal http://www.smbc-comics.com/?id=1535 yt:video:9I_-ADGrKQo 9I_-ADGrKQo UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-07-01T20:15:48+00:00 2015-07-11T16:08:18+00:00 Crash Course Economics Intro! In which Jacob Clifford and Adriene Hill introduce you to Crash Course Economics! CC Econ is a new course from the Crash Course team. We look forward to teaching you all about the so-called dismal science. 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:SCV_m91mN-Q SCV_m91mN-Q UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-29T21:00:00+00:00 2015-07-11T13:51:54+00:00 Endocrine System, part 2 - Hormone Cascades: Crash Course A&P #24 In the second half of our look at the endocrine system, Hank discusses chemical homeostasis and hormone cascades. Specifically, he looks at the hypothalamus-pituitary-thyroid axis, or HPT axis, and all the ways your body can suffer when that system, or your hormones in general, get out of whack. Table of Contents Chemical Homeostasis 1:04 Hormone Cascades 2:37 HPT Axis 3:25 Crash Course Psychology posters available now at DFTBA.com! http://www.dftba.com/crashcourse *** 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, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode ***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: Megan McChristy, Matthew Feickert, Tara D. Kane, Gage Ledbetter, Benjamin Perea, Chad Walter, Janel Christensen, Alura Embrey, Ken Johnson, Harland Wirth -- 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:mWYFwl93uCM mWYFwl93uCM UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-27T00:10:30+00:00 2015-07-11T15:12:45+00:00 Judicial Review: Crash Course Government and Politics #21 Today, Craig Benzine is going to tell you about the Supreme Court's most important case, Marbury v. Madison, and how the court granted itself the power of judicial review. Judicial review is the power to examine and invalidate actions of the legislative and executive branches. It happens at both the state and federal court levels, but today we're going to focus primarily on the court at the top - the Supreme Court of the United States. Now it's important to remember that the court has granted itself these powers and they aren't found within the Constitution, but as with the executive and legislative branches, the courts rely heavily on implied powers to get stuff done. 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 https://creativecommons.org/licenses/by/2.0/legalcode 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:ZJscxTyI__s ZJscxTyI__s UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-26T00:00:00+00:00 2015-07-11T16:06:30+00:00 The Oort Cloud: Crash Course Astronomy #22 Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut shape aligned with the plane of the solar system; the scattered disk is more eccentric and is the source of short period comets; and the Oort Cloud which surrounds the solar system out to great distances is the source of long-period comets. These bodies all probably formed closer into the Sun, and got flung out to the solar system’s suburbs by gravitational interactions with the outer planets. -- Table of Contents Icy Bodies That Can Become Comets 0:27 The Kuiper Belt is a Donut Shape Aligned With the Plane of the Solar System 2:57 The Scattered Disk is More Eccentric and the Source of Short Period Comets 4:26 Oort Cloud Surrounds Our Solar System and is the Source of Long-Period Comets 4:04 These Bodies Probably Formed Near the Sun and Dispersed Through Gravitational Interactions 5:41 -- 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 HD Long Exposure Star Timelapse https://vimeo.com/34172172 [credit: Jeffrey Beach, Beachfront B-Roll] Fine Structure in the Comet’s Jets http://blogs.esa.int/rosetta/2015/01/16/fine-structure-in-the-comets-jets/ http://en.wikipedia.org/wiki/Protoplanetary_disk#mediaviewer/File:Artist%E2%80%99s_Impression_of_a_Baby_Star_Still_Surrounded_by_a_Protoplanetary_Disc.jpg [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA] Artist's impression of a protoplanetary disk. [credit: ESO/L. Calçada - ESO] Creating Gas Giants http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11541 [credit: NASA's Goddard Space Flight Center] What is a Sungrazing Comet? http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11307 [credit: NASA's Goddard Space Flight Center] Pluto/Neptune Orbit http://www2.jpl.nasa.gov/files/images/browse/plutoneptune.gif [credit: NASA] 1992 QB1 http://solarsystem.nasa.gov/multimedia/gallery/1992_QB14.jpg [credit: ESO] Eris http://apod.nasa.gov/apod/ap060918.html [credit: W. M. Keck Observatory] Moons of Pluto http://en.wikipedia.org/wiki/Kerberos_(moon)#/media/File:Moons_of_Pluto.png [credit: NASA, ESA, and M. Showalter (SETI institute)] New Horizons Approach http://pluto.jhuapl.edu/common/content/animations/New-Horizons-Voyage-to-Pluto/ApproachingPluto1280.mp4 [credit: JHUAPL] Moon http://svs.gsfc.nasa.gov/vis/a000000/a003800/a003894/phase04_full.jpg [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio] Pluto http://solarsystem.nasa.gov/multimedia/display.cfm?Category=Planets&IM_ID=20073 [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute] Sedna’s Orbit http://commons.wikimedia.org/wiki/File:Sedna-PIA05569-crop.jpg [credit: NASA] Artist’s Conception of Kuiper Belt http://en.wikipedia.org/wiki/File:14-281-KuiperBeltObject-ArtistsConcept-20141015.jpg [credit: NASA, Wikimedia Commons] Kuiper Belt World (video) http://planetquest.jpl.nasa.gov/video/41 [credit: NASA Kepler Mission/Dana Berry] Pluto Discovery Plates http://azmemory.azlibrary.gov/cdm/singleitem/collection/loaselect/id/25/rec/1 [credit: Clyde Tombaugh, Lowell Observatory] yt:video:MCodRWoavoc MCodRWoavoc UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-25T20:20:10+00:00 2015-07-11T15:45:51+00:00 IP Problems, YouTube, and the Future: Crash Course Intellectual Property #7 In which Stan Muller talks about some of the problems in Intellectual Property law as it exists today. He'll also teach you a little about how IP law applies to everyone's favorite media platform, YouTube. Lastly, he'll do a little prognosticating, and try to predict how IP law might change in the future. Destin's Freebooting Video: https://www.youtube.com/watch?v=L6A1Lt0kvMA 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: Joseph G. O'Connor III, Damian Shaw, Kenzo Yasuda, Brendan M. Sullivan, Nick Glorioso, Stephen DeCubellis, Vanessa Benavent, SHS Physics, Scott Nedrow, Matthew Palka (Errrbody Palka!) :D TO: Everyone FROM: Me You CAN'T be 'Based off' of anything! BASED ON! 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:eWHH9je2zG4 eWHH9je2zG4 UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-22T21:00:00+00:00 2015-07-11T12:56:50+00:00 Endocrine System, part 1 - Glands & Hormones: Crash Course A&P #23 Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells or just turn on specific ones. He will also touch on hormone cascades, and how the HPA axis effects your stress response. Table of Contents Endocrine System 2:32 Glands Produce Hormones 2:58 Amino Acid Based and Water Soluble 4:18 Steroidal and Lipid Soluble 4:44 Hormone Cascades 6:15 HPA Axis Effects Your Stress Response 6:30 *** Crash Course Psychology Poster: http://www.dftba.com/crashcourse *** 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, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode ***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: Mickey Maloney, Dan Smalley, Stephen DeCubellis, Vanessa Benavent, Andrew Galante, LankySam!, David Costello, Vanessa Benavent, Kenzo Yasuda, Tessa White -- 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:KZwLncHDXOM KZwLncHDXOM UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-19T21:00:01+00:00 2015-07-10T17:17:38+00:00 Outtakes #2: Crash Course Government and Politics In which Craig Benzine tries to say certiorari. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Support is provided by Voqal: http://www.voqal.org 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:yB9HHyPpKds yB9HHyPpKds UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-18T21:00:02+00:00 2015-07-11T16:00:22+00:00 Comets: Crash Course Astronomy #21 Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail. We’ve visited comets up close and found them to be lumpy, with vents in the surface that release the gas as ice sublimates. Eons ago, comets (and asteroids) may have brought a lot of water to Earth -- as well as the ingredients for life. -- Table of Contents Comets Are Chunks of Rock and Ice That Orbit the Sun 1:26 When They Get Near the Sun They Turn Into Gas 2:08 Comets Release Gas Via Vents As Ice Sublimates 2:15 Comets May Have Brought Water and Ingredients for Life to Earth 9:30 -- 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 Halley's Comet, 1910 http://en.wikipedia.org/wiki/File:Halley%27s_Comet,_1910.JPG [credit: New York Times, Wikimedia Commons] Bayeux Tapestry http://upload.wikimedia.org/wikipedia/commons/f/fa/Bayeux_Tapestry_32-33_comet_Halley_Harold.jpg [credit: Wikimedia Commons] Comet McNaught [credit: Phil Plait] Comet McNaught + tail http://en.wikipedia.org/wiki/C/2006_P1#/media/File:Cometmcnaughtchrisn1.jpg [credit: Chris North, Wikimedia Commons] Comet surface http://rosetta.jpl.nasa.gov/sites/default/files/PIA18867-MAIN_Nov9-15765234852_c16c4097a5_o.jpg [credit: ESA/Rosetta/NAVCAM] Fine structure in the comet’s jets http://blogs.esa.int/rosetta/2015/01/16/fine-structure-in-the-comets-jets/ [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA] Comet Halley http://apod.nasa.gov/apod/image/1001/halley_giotto_big.jpg [credit: Halley Multicolor Camera Team, Giotto Project, ESA] Comet McNaught https://solarsystem.nasa.gov/multimedia/display.cfm?Category=Planets&IM_ID=10194 [credit: ESO] Hubble's Last Look at Comet ISON Before Perihelion http://en.wikipedia.org/wiki/File:Hubble%27s_Last_Look_at_Comet_ISON_Before_Perihelion.jpg [credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)] Hale-Bopp: The Great Comet of 1997 http://apod.nasa.gov/apod/ap131013.html [credit: Jerry Lodriguss, used with permission] Sungrazer video http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11307 [credit: NASA's Goddard Space Flight Center] “Large Web” graphic http://www.nasa.gov/sites/default/files/hs-2014-29-a-large_web.jpg [credit: JHUAPL/SwRI/Dan Durda] Comet Daniel http://commons.wikimedia.org/wiki/File:Comet_Daniel_-_1907.jpg [credit: Max Wolf, Wikimedia Commons] Vega 1 Low Res http://nssdc.gsfc.nasa.gov/planetary/image/veg2_tikf0002.gif [credit: Russian Academy of Sciences] The Nucleus of Comet Halley http://sci.esa.int/giotto/51183-the-nucleus-of-comet-halley/ [credit: ESA/MPS] Comet Hartley 2 http://en.wikipedia.org/wiki/103P/Hartley#/media/File:495296main_epoxi-1-full_full.jpg [credit: NASA/JPL-Caltech/UMD] Comet 67P/Churyumov-Gerasimenko http://sci.esa.int/rosetta/54472-comet-67p-on-3-august-2014/ [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA] OSIRIS Catches Activity in the Act http://blogs.esa.int/rosetta/2015/04/20/osiris-catches-activity-in-the-act/ [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA] Active Pit http://www.esa.int/spaceinimages/Images/2015/01/Active_pit [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA] Depiction of Philae‍‍ '​‍s planned touchdown on the comet http://en.wikipedia.org/wiki/Philae_(spacecraft)#/media/File:Rosetta%27s_Philae_touchdown.jpg [credit: DLR, CC-BY 3.0, Wikimedia Commons] Colour Image of a Comet http://www.esa.int/spaceinimages/Images/2014/12/Colour_image_of_comet [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA] Comet Lovejoy http://en.wikipedia.org/wiki/C/2011_W3_(Lovejoy)#/media/File:Iss030e015472_Edit.jpg [credit: NASA/Dan Burbank] NASA’s Stardust http://www.nasa.gov/images/content/361283main_sd_comet_2400x3000.jpg [credit: NASA/JPL] Comet dust https://www.nasa.gov/images/content/141271main_jsc2006e01008_high.jpg [credit: NASA] Comet Lovejoy http://www.eso.org/public/usa/images/dsc_5682-cc/ [credit: ESO/G. Brammer] yt:video:I80Xx7pA9hQ I80Xx7pA9hQ UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-15T21:00:00+00:00 2015-07-11T14:40:47+00:00 Muscles, part 2 - Organismal Level: Crash Course A&P #22 Hank calls in a friend to do his push ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three phase cycle of muscle twitches, and how the strength and frequency of an impulse affects the strength and duration of a contraction. This episode also explains twitch summation, tetanus, and isotonic vs. isometric movements. Table of Contents Skeletal Muscles Work Together to Create and Reverse Movements 1:14 Motor Units 3:52 Three Phases of Muscle Twitches 4:41 Strength and Frequency of Impulses 5:29 Strength and Duration of a Contraction 5:29 Twitch Summation vs Tetanus 6:19 Isotonic vs Isometric Movements 8:50 *** Crash Course Psychology Poster: http://www.dftba.com/crashcourse *** 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, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode ***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: Vanessa Benavent, Les Brown, John Hadfield, Damian Shaw, Burt G. Clothier & Tad A. Saine, Ashley Williamson, Carrie Williamson, Melissa A, Lopin Forsythe, Trevor Sacks -- 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:7sualy8OiKk 7sualy8OiKk UCX6b17PVsYBQ0ip5gyeme-Q CrashCourse http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q 2015-06-13T00:35:03+00:00 2015-07-11T15:01:18+00:00 Supreme Court of the United States Procedures: Crash Course Government and Politics #20 This week Craig Benzine talks about what happens when a case makes it to the Supreme Court of the United States (or the SCOTUS). We're going to focus on court procedure today. We talk about how to petition to get your case heard, how written arguments, or briefs, are made, what actually happens on the courtroom floor, and of course the variety of ways the SCOTUS issues opinions on cases. 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 https://creativecommons.org/licenses/by/2.0/legalcode 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