Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h

Today we visit artist Allison Smith in her Oakland, California studio. Her work focuses on historical reenactment and how the past influences the present -- and now she wants to know what YOU are fighting for.

Sarah discusses how there is a long history of art intersecting with activism and how it has evolved over time.

INSTRUCTIONS - The Muster
1. Answer the question, "What are you fighting for?"
2. Fashion your own uniform that declares your cause out of materials you have around
3. Take a picture of yourself in uniform in front of a neutral background
4. Create a declaration of your cause
5. Upload your photo and declaration with #theartassignment

Find out more about The Art Assignment and how to submit your response: http://theartassignment.com/

Host Sarah Urist Green shares 40 reflections about art, gathered in the course of a career in art, art history, curating, and making videos about all of the above. And don't forget to check out Sound Field!: http://youtube.com/soundfieldpbs.
#art #arthistory #contemporaryart

Thanks to our Grandmasters of the Arts Vincent Apa, Josh Thomas, and Ernest Wolfe, and all of our patrons, especially Rich Clarey, Iain Eudaily, Frame Monster Design Laboratory, Patrick Hanna, Nichole Hicks, Andrew Huynh, Eve Leonard, David Moore, Gabriel Civita Ramirez, Constance Urist, Nicholas Xu, and Roberta Zaphiriou. To support our channel, visit: http://www.patreon.com/artassignment.

Subscribe for new episodes of The Art Assignment every other Thursday, and follow us elsewhere for the full Art Assignment experience:
Twitter: http://twitter.com/artassignment
Instagram: http://instagram.com/theartassignment/
Facebook group: https://www.facebook.com/group....s/artassignmentextra

Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h

You probably made rubbings in elementary school, but Kim Beck views rubbings as field recordings. She wants you to take a snapshot of a particular place by making a rubbing of the ground you're standing on. Here’s what she means:

INSTRUCTIONS
1. Get a crayon and a large piece of paper
2. Find a piece of ground that you respond to
3. Make a rubbing of that piece of ground
4. Take a photo of the rubbing in the place you made it and upload using #theartassignment
5. Fame and glory (Your work might be featured in a future episode)
6. BONUS!: Send us your rubbing (with a return address) and we’ll send you someone else’s — mail to: The Art Assignment, PO Box 30827, Indianapolis, IN 46230

Find out more about The Art Assignment and how to submit your response: http://theartassignment.com/

Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h

In which Sarah and John answer questions about The Art Assignment submitted by viewers. Oh, and we also show a a few Intimate, Indispensable GIFs!

Follow us on Tumblr to stay up to date with responses to assignments: http://theartassignment.tumblr.com

And don't forget to subscribe!

Another YouTube #shorts from Dr. Joe! Subscribe for more fun science stories.

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Have you ever looked at the front of a car and seen a face? Or an electrical outlet and seen a face? You definitely have. We all see faces everywhere we look thanks to a fun quirk of the human brain called facial pareidolia. Here's the neuroscience and psychology of how this weird brain phenomenon works!

References: https://sites.google.com/view/....facial-pareidolia-re

0:00 Intro
1:33 What is facial pareidolia?
2:26 How your brain "sees" stuff
4:10 What is a "face" anyway?
5:29 Are we born this way?
7:08 Why recognizing faces is important, according to evolution
9:09 Dog faces, and some closing thoughts
10:05 Support us on Patreon!

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Follow this link to more shark science videos by your favorite YouTubers!! http://bit.ly/1sugd0z

Sharks killed per hour infographic: http://bit.ly/1oXYT0Y

An estimated 100 million sharks are killed per year: http://bit.ly/1oE7uRS

Palau sharks are worth $2 million: http://nyti.ms/1kX4fua

Effect of shark overfishing on reefs: http://bit.ly/1opLhwF

Overfishing sharks led to scallop fishery collapse: https://www.sciencemag.org/content/315/5820/1846.short?related-urls=yes&legid=sci;315/5820/1846

Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Camera
Editing/Motion Graphics - Andrew Matthews
Gaffer - John Knudsen

Theme music:
"Ouroboros" by Kevin MacLeod

Stock images via Shutterstock

Produced for PBS Digital Studios
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If the sun instantly switched off like a light bulb–which can’t happen, by the way–then we wouldn’t know for almost 8 and a half minutes. Light travels at the fastest speed there is, but it still takes almost 500 seconds to get to Earth. That’s how long it would take before we knew the sun went dark. But the most amazing thing about the sunlight we see is it’s actually really old. SUPER old. AMAZINGLY OLD! Tens of thousands of years old. How is that possible? Because of the physics and mathematics of random walks.

References: https://sites.google.com/view/....how-old-is-sunlight-

Special thanks to our Brain Trust Patrons:
AlecZero
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vincbis

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Educational video for children to learn about the characteristics and fun facts related to lions, elephants and giraffes. Giraffes are vertebrate and herbivorous animals, they eat tree leaves that they find in their habitat. They are the tallest land mammals in the world. Elephants eat roots, leaves and some tree bark. Lions are the fiercest mammals despite the fact that they can sleep up to 20 hours a day.

This video is an interesting and useful resource for children to learn interesting facts about the animals of the Savannah, including where they live and what they eat. It is an excellent video for early childhood education.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

If you like our videos, download Smile and Learn now. You’ll discover thousands of activities for children aged 3 to 12 years, all designed by educators. We have hundreds of games, interactive stories and videos in five languages: English, Spanish, Portuguese, Italian, Turkish and French. Try a month for free and start the adventure!

www.smileandlearn.com

Educational video to learn to write and count from 1 to 10 in a fun way. This video is part of a larger collection of videos and its objective is for younger kids to learn the numbers, through several different examples. Ideal for preschool education.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

We only upload our own content, designed by educators so that children smile and learn while watching a video.

All of our content reinforces educational values, encouraging the use of multiple intelligences and language learning.

If you like our videos, download “The Smart Library” now. You’ll discover more than 70 interactive games and stories for children designed by educators. The stories are based on VALUES like friendship, respect, and generosity, and our games cover all of the MULTIPLE INTELLIGENCES. All our content is in SPANISH, ENGLISH, FRENCH, ITALIAN and PORTUGUESE.

The perfect tool to use in and out of school.

Download it today!

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Check out our whole series on ENERGY! http://bit.ly/1BnH5zu
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The world of energy is a confusing place. What's better, nuclear or solar? What's the difference between fluorescent bulbs and LEDs? What's the difference between energy and power? And what the heck is a kilowatt-hour?!

In this video, we give you a tour of the essential principles behind the energy machine that puts fuel in our tanks and brings electricity to our homes. To be a good energy citizen, you need to speak the language
LEARN MORE:
Special thanks to Sheril Kirshenbaum and the Webber Energy Group at the University of Texas at Austin for their help with this series. http://www.webberenergygroup.com/

Check out their awesome online course "Energy 101" to learn about energy and energy policy from A to Z! http://www.energy101.com/

And to find out what people think about energy, check out the UT Energy Poll: http://www.utenergypoll.com/


Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
Follow on Twitter: http://twitter.com/okaytobesmart
http://twitter.com/jtotheizzoe
Follow on Tumblr: http://www.itsokaytobesmart.com
Follow on Instagram: http://instagram.com/jtotheizzoe

-----------------
It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe
Email me: itsokaytobesmart AT gmail DOT com
Facebook: http://www.facebook.com/itsokaytobesmart
Google+ https://plus.google.com/+itsokaytobesmart
For more awesome science, check out: http://www.itsokaytobesmart.com
Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Andrew Matthews - Editing/Motion Graphics/Animation
Katie Graham - Director of Photography
John Knudsen - Gaffer

Theme music:
"Ouroboros" by Kevin MacLeod

Other music via APM

Stock images from Shutterstock, stock footage from Videoblocks

-----------------

Last week's video:
Does the Moon Orbit the Earth? https://www.youtube.com/watch?v=3cJ3AemeUFM

More videos:
Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs
Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys
Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA
Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8

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 their 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 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.

Support is provided by Voqal: http://www.voqal.org
This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse

Chapters:
Introduction: Informal Powers of the President 00:00
Informal powers of the President 0:50
Inherent power to use troops 1:20
War Powers Resolution 2:23
Executive agreements vs. treaties 2:42
CEO of the U.S. 3:31
Legislative Initiative 4:18
Executive orders 5:20
Impounding funds 6:02
Executive privilege 6:20
The importance of presidential precedent 6:56
Credits 7:21

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

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In order to understand the history of media literacy we have to go all the way back to straight up literacy. In the first half of our look at the history of media literacy, Jay takes us all the way back to Ancient Greece and forward through the printing press, newspapers, and Yellow Journalism.

***

Resources & References:

The Impact of the Printing Press http://courses.educ.ubc.ca/ete....c540/Sept04/arthurp/

Grandparents of Media Literacy https://www.grandparentsofmedi....aliteracy.com/grandp

Maine Explosion Caused by Bomb or Torpedo? https://digitalcollections.nyp....l.org/items/84ea964f

***

Crash Course is 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, Justin Zingsheim, Nickie Miskell Jr., 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, Daniel Baulig, 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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In which Adriene Hill and Jacob Clifford teach you about specialization and trade, and how countries decide whether they're going to make stuff or trade for stuff. You'll learn about things like comparative advantage, the production possibilities frontier and how to make pizza!

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: Sarah M.
FROM: Anthony M.

"Making our own history awesome! Happy 3 year Anniversary!"

TO: Everyone
FROM: Someone

"The earth is but one country, and mankind its citizens."

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:

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Cold War… warming planet?
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A few years after the collapse of the Soviet Union, a top-secret, first-of-its-kind US spy satellite program was declassified, leading to the unexpected story of how former enemies became scientific allies, and technology invented for Cold War espionage was repurposed to study and combat the newest and greatest threat to human civilization: Climate Change.

Thank you to the following for help in researching this video:
Michael McElroy
D. James Baker
The Office of Vice President Al Gore

0:00 Peeking behind the Iron Curtain
1:52 Spies in space
2:53 A time machine… but for Earth
3:41 Early days of the Space Race
5:37 Code name: CORONA
8:37 No more Iron Curtain… now what?
10:48 Spies… but for the Earth
13:20 New data & unlikely allies
16:31 Teamwork makes the dream work
17:46 Support us on Patreon!

Note: The thumbnail for this episode includes a picture of Joe Hanson created with a text-to-image generative AI tool

SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub

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Dustin
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This episode of Be Smart is licensed exclusively to YouTube.

On today's episode of Crash Course Anatomy & Physiology, Hank continues our exploration of tissues, with an introduction to your connective tissues.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Chapters:
Introduction 00:00
What is Connective Tissue? 2:14
Four Classes of Connective Tissue 2:34
What Makes Connective Tissues Different From Other Tissue Types? 3:25
The Extracellular Matrix 4:07
Types of Fibers 5:34
Connective Tissue Cells 6:34
How Marfan Syndrome Affects Connective Tissue 8:31
Review 9:37
Credits 10:08

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

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NEW: Follow-up video with puzzle solution is here: https://youtu.be/leFep9yt3JY
In this video the Mathologer uses infinite fractions to track down the most irrational of all irrational numbers. Find out about how the usual suspects root 2, e, and pi stack up against this special number and where the irrationality of this special number materialises in nature.

Another video to check out is this leisurely lecture by Professor John Barrow: https://youtu.be/zCFF1l7NzVQ and his write-up in Plus+ magazine: https://plus.maths.org/content..../chaos-numberland-se
If you are reasonably clued up mathwise have a look at the following VERY nice textbook chapter on infinite fractions by Professor Paul Loya from Binghampton University: http://www.math.binghamton.edu/dikran/478/Ch7.pdf In particular, check out section 7.5.1. The mystery of π and good and best approximations. I use the definition of "best rational approximation" given there. And if you are okay with all this and are having transcendental numbers for breakfast, definitely also don't miss out on the last section 7.10. Epilogue: Transcendental numbers, π, e, and where’s calculus?

Enjoy :)

What is a trade deficit? Well, it all has to do with imports and exports and, well, trade. This week Jacob and Adriene walk you through the basics of imports, exports, and exchange. So, you remember the specialization and trade thing, right? So, that leads to imports and exports. Economically, in the aggregate, this is usually a good thing. Globalization and free trade do tend to increase overall wealth. But not everybody wins.

Crash Course is 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, Eric Kitchen, Jessica Wode, Jeffrey Thompson, Steve Marshall, Moritz Schmidt, Robert Kunz, Tim Curwick, Jason A Saslow, SR Foxley, Elliot Beter, Jacob Ash, Christian, Jan Schmid, Jirat, Christy Huddleston, Daniel Baulig, Chris Peters, Anna-Ester Volozh, Ian Dundore, Caleb Weeks

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Today Hank kicks off our look around MISSION CONTROL: the nervous system.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Chapters:
Introduction: Hank's Morning Routine 00:00
Nervous System Functions: Sensory Input, Integration, and Motor Output 1:17
Organization of Central and Peripheral Nervous Systems 2:16
Neurons & Glial Cells 3:42
Central Nervous System Glial Cells: Astrocytes, Microglial, Ependymal, and Oligodendrocytes 4:17
Peripheral Nervous System Glial Cells: Satellite and Schwann 4:56
Cool Neuron Facts! 5:15
Neuron Structure 6:20
Classifying Neuron Structures: Multipolar, Bipolar, and Unipolar 7:00
Classifying Neuron Functionality: Sensory (Afferent), Motor (Efferent), Interneurons (Association) 7:47
Review 9:42
Credits 10:14

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

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