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New videos from Khan Academy 2020-07-11T19:35:40.000000
Actualizado: hace 3 horas 56 mins

Quick guide to the 2020 AP US History exam

Mié, 2020-04-15 19:33
What's different in the 2020 AP US History test? Kim walks you through what to expect with the new exam format and scoring. If you or a student you know needs help getting access to the technology they need to complete the online test, fill out the College Board's form here: https://collegeboard.tfaforms.net/74 If you'd like to check out the College Board's updated scoring rubric for the 2020 DBQ, you can find it here: https://apcentral.collegeboard.org/pdf/ap-history-rubric-2020-dbq.pdf

Duane Hanson, Executive, originally titled, Another Day

Mar, 2020-04-14 17:38
Duane Hanson, Executive, 1971, polyester resin and fiberglass, oil paint, mixed media with accessories, life size (Toledo Museum of Art, ©estate of the artist), a Seeing America video speakers: Dr. Halona Norton-Westbrook, Director of Curatorial Affairs, Toledo Museum of Art and Dr. Steven Zucker

Going out to the cinema in 1913, John Sloan's Movies

Mar, 2020-04-14 17:38
John Sloan, Movies, 1913, oil on canvas, 50.3 x 61 cm (Toledo Museum of Art) speakers: Dr. Lawrence W. Nichols, William Hutton Senior Curator of European and American Painting and Sculpture before 1900, Toledo Museum of Art and Dr. Steven Zucker

Build it: What you'll need to model Soap Film Interference

Mar, 2020-04-14 07:39
Light reflecting off the surface of soapy water produces colors—why? What affects which colors you see? This model shows what happens when light of different wavelengths encounters soap film of different thicknesses. This tutorial is a companion to Soap Film on a Can (see the main page of the Exploratorium's Color and Light section).

Why Cosmic Evolution Matters: Crash Course Big History #201

Lun, 2020-04-13 19:11
Crash Course Big History is back! It turns out, we couldn't tell all of the 13.8 billion years of the history of the universe in 10 Crash Course Episodes. So, Big History host Emily Graslie has returned to add 6 more episodes that look at why the stuff we studied in Big History matter. Today, we're starting with a look at why Cosmic Evolution matters. What exactly does the process of the big bang, the formation of stars, and the birth of planets mean to our lives? Let's find out together. Learn more at http://www.bighistory.com 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, Les Aker, Bob Kunz, Mark Austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, Eric Prestemon, Malcolm Callis, Steve Marshall, Advait Shinde, Rachel Bright, Ian Dundore, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Caleb Weeks, Frantic Gonzalez, Kathrin Janßen, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Andrea Bareis, Moritz Schmidt, Jessica Wode, Daniel Baulig, Jirat -- 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 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, Les Aker, Bob Kunz, Mark Austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, Eric Prestemon, Malcolm Callis, Steve Marshall, Advait Shinde, Rachel Bright, Ian Dundore, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Caleb Weeks, Frantic Gonzalez, Kathrin Janßen, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Andrea Bareis, Moritz Schmidt, Jessica Wode, Daniel Baulig, Jirat -- 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

Why Human Evolution Matters: Crash Course Big History 204

Lun, 2020-04-13 19:11
This week on Crash Course Big History, Emily is talking about process of human evolution, and the knack for innovation that has allowed humans to become so dominant on the Earth. Human innovation, and the ability to build on those innovations generation after generation is what makes humans different than other animals. Collective learning is enabled by our highly evolved and efficient ability to communicate with each other and pass on information. With great power, of course, comes great responsibility, and how we use this powerful tool has kind of a mixed track record. For more information, visit the Big History Project 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, Les Aker, Bob Kunz, mark austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, Shawn Arnold, Eric Prestemon, Malcolm Callis, Steve Marshall, Advait Shinde, Rachel Bright, Khaled El Shalakany, Sam Hickman, Ian Dundore, Asif Ahmed, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Caleb Weeks, Frantic Gonzalez, Kathrin Janßen, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Andrea Bareis, Moritz Schmidt, Jessica Wode, Daniel Baulig, Jirat -- 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

To Scale: The Solar System

Lun, 2020-04-13 19:11
On a dry lakebed in Nevada, a group of friends build the first scale model of the solar system with complete planetary orbits: a true illustration of our place in the universe. A film by Wylie Overstreet and Alex Gorosh alexgorosh.com wylieoverstreet.com Feel like supporting more films like this? Consider becoming a Patron: https://www.patreon.com/toscaleseries?ty=h _____ Watch in Russian: https://youtu.be/pH3e1KgxjOc Help us caption & translate this short film: http://amara.org/v/HHTb/ Copyright (C) 2015

Crash Course Big History #9: The Anthropocene and the Near Future

Lun, 2020-04-13 19:11
In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle, and awesome electric cars, and amazing smartphones. So all this collective learning and progress has been good for everyone, right? Maybe not. We'll look at some of the pros and cons of all this "progress," including environmental impact, changes in the way people live and work, and political changes and wars that come along with the modern world. We've come a long way, but there's a long way to go. Crash Course will also take a look at what's going to happen in the near future. If we manage to make our way through the coming bottlenecks, we could be OK in coming centuries. Don't get too hopeful, though. The Sun will eventually die, and the Earth will be destroyed, and later the universe will eventually experience heat death. Website: https://www.bighistoryproject.com/portal Facebook: https://www.facebook.com/bighistoryproject Twitter: https://twitter.com/BigHistoryPro

Why the Evolutionary Epic Matters: Crash Course Big History #203

Lun, 2020-04-13 19:11
Today we're talking about evolution–basically the history of all life on Earth. The thing is, why are we talking about this. Well, the story of life, all the way back to single celled microbes billions of years ago, is all part of our human story. An important facet of the story of life is the story of death. This episode will look at the various mass extinctions along the way, and we'll also talk about the sixth mass extinction, which is going on now, and is kind of driven by humans. Sorry everybody. More information at http://www.bighistoryproject.com 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, Les Aker, Bob Kunz, mark austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, Shawn Arnold, Eric Prestemon, Malcolm Callis, Steve Marshall, Advait Shinde, Rachel Bright, Khaled El Shalakany, Sam Hickman, Ian Dundore, Asif Ahmed, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Caleb Weeks, Frantic Gonzalez, Kathrin Janßen, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Andrea Bareis, Moritz Schmidt, Jessica Wode, Daniel Baulig, Jirat -- 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

Why Early Globalization Matters: Crash Course Big History #206

Lun, 2020-04-13 19:11
Globalization has been in process for centuries, and has had a huge effect on Big History, and on Collective Learning. This week, Emily is investigating early globalization through three things that moved around the world and shaped collective learning in the early decades of globalization: Printing, Potatoes, and Plagues. 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, Les Aker, Bob Kunz, mark austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, Shawn Arnold, Eric Prestemon, Malcolm Callis, Steve Marshall, Advait Shinde, Rachel Bright, Khaled El Shalakany, Ian Dundore, The Great Dionysus, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Caleb Weeks, Kathrin Janßen, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Andrea Bareis, Moritz Schmidt, Gianna Phelps, Jessica Wode, Daniel Baulig, Jirat -- 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

Crash Course Big History #7: Migrations and Intensifications

Lun, 2020-04-13 19:11
In which Hank and John Green teach you about humanity conquering the Earth. Or at least moving from Africa into the rest of the Earth. As human beings spread out across the world and populations grew, humanity reached a critical mass of innovators, and collective learning took off! All these innovations were great for lots of human endeavors, but none fared better than agriculture. Website: https://www.bighistoryproject.com/portal Facebook: https://www.facebook.com/bighistoryproject Twitter: https://twitter.com/BigHistoryPro

Jacqueline Howard: A Day on Mars | Big History Project

Lun, 2020-04-13 19:11
Could humans relocate to Mars? Is it a potential future home for our species? Website: https://www.bighistoryproject.com Facebook: https://www.facebook.com/bighistoryproject Twitter: https://twitter.com/BigHistoryPro

Jacqueline Howard: History of Domestic Animals | Big History Project

Lun, 2020-04-13 19:11
Jacqueline Howard takes a look at the domestication of animals, and how this process contributed to the evolution of human civilization. Website: https://www.bighistoryproject.com Facebook: https://www.facebook.com/bighistoryproject Twitter: https://twitter.com/BigHistoryPro

Crash Course Big History #10: The Deep Future

Lun, 2020-04-13 19:11
Finally, after what seems like eons and eons, the end is nigh. We're talking not only about the end of Crash Course Big History, but also the end of everything. The end of humanity and the end of the universe.John and Hank Green will teach you about what the future holds for humanity and the universe. Spoiler alert: in the long, long, long, long, long, long term, it doesn't look good. In the short term though, it's not too bad. But don't lose hope, there is an upside. You'll have to watch the video to find out. Website: https://www.bighistoryproject.com Facebook: https://www.facebook.com/bighistoryproject Twitter: https://twitter.com/BigHistoryPro

Jacqueline Howard: History of Money | Big History Project

Lun, 2020-04-13 19:11
Jacqueline Howard shows us how our exchange economy has evolved from early rudimentary bartering to present-day digital currency. Website: https://www.bighistoryproject.com Facebook: https://www.facebook.com/bighistoryproject Twitter: https://twitter.com/BigHistoryPro

Why Star Stuff Matters: Crash Course Big History 202

Lun, 2020-04-13 19:11
So, the stars made the elements, we're all made of star stuff, etc. But what does all this mean? This week Emily Graslie teaches you how the formation of chemical elements in the bellies of the earliest stars made life as we know it possible. Namely, we'll be learning about lowly carbon, which it turns out, is kind of a superhero when it comes to the rise of complexity. Learn more at The Big History Project: http://www.bighistoryproject.com 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, Les Aker, Bob Kunz, Mark Austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, Eric Prestemon, Malcolm Callis, Steve Marshall, Advait Shinde, Rachel Bright, Ian Dundore, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Caleb Weeks, Frantic Gonzalez, Kathrin Janßen, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Andrea Bareis, Moritz Schmidt, Jessica Wode, Daniel Baulig, Jirat -- 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

Why Human Ancestry Matters: Crash Course Big History 205

Lun, 2020-04-13 19:11
This week, Emily Graslie is teaching you about human ancestry and geneaology, how we got to be the species we are, and why that matters in our zoomed out look at Big History. For more information, visit the Big History Project: http://www.bighistoryproject.com 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, Les Aker, Bob Kunz, mark austin, William McGraw, Jeffrey Thompson, Ruth Perez, Jason A Saslow, Shawn Arnold, Eric Prestemon, Malcolm Callis, Steve Marshall, Advait Shinde, Rachel Bright, Khaled El Shalakany, Sam Hickman, Ian Dundore, Asif Ahmed, Tim Curwick, Ken Penttinen, Dominic Dos Santos, Caleb Weeks, Frantic Gonzalez, Kathrin Janßen, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Chris Peters, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Tom Trval, Andrea Bareis, Moritz Schmidt, Jessica Wode, Daniel Baulig, Jirat -- 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

Cultures and slavery in the American south: a Face Jug from Edgefield county

Sáb, 2020-04-11 18:56
A conversation with Sarah Alvarez, Director of School Programs, Art Institute of Chicago, Beth Harris, and Steven Zucker in front of a Face Jug from Edgefield county, South Carolina, c. 1860, stoneware and alkaline glaze, 13.3 cm high (The Art Institute of Chicago 2006.84) A Seeing America video

A show-stopping cut-glass punch bowl

Sáb, 2020-04-11 18:30
Libbey Glass Company, Punch Bowl and stand with 23 cups, 1904, thick colorless glass, 54.6 x 60.6 x 60.6 cm, 134 pounds (Toledo Museum of Art) Speakers: Diane Wright, Curator of Glass and Decorative Arts, Toledo Museum of Art and Beth Harris A Seeing America video

Dreaming big, Thomas Cole paints 4,500 years of architectural history in The Architect's Dream

Sáb, 2020-04-11 15:36
Thomas Cole, The Architect's Dream, 1840, oil on canvas, 134.7 x 213.6 cm (Toledo Museum of Art) speakers: Dr. Lawrence W. Nichols, William Hutton Senior Curator of European and American Painting, Toledo Museum of Art and Dr. Steven Zucker

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