I bought 10,000 shade balls and tried to swim in them. They appear to act like a non-Newtonian fluid: rigid under high shear stress, but they flow like a liquid under low shear.
All the signed shade balls have now been mailed out - thanks for your support!

Receiving a shade ball:
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My sense was that swimming in shade balls would be difficult but still doable. This was roughly true for the single layer of shade balls. The shade balls slide past each other so they act like a liquid, albeit a viscous one owing to their significant inertia. It's much more intense exercise and it's also annoying to be bombarded with shade balls on all sides of your body, particularly your head. With multi-layer shade balls (as exists on much of LA reservoir) things get significantly more difficult. The balls bunch together and when you try to move through them quickly, they become more rigid, providing significant resistance to motion. This has the benefit that you can lie on them and as long as they stay trapped under you, you can float on them. But a little bit of motion causes them to move around and you sink through quickly.

Special thanks to our Patreon supporters! Join this community to help us keep our videos free, forever:
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Huge thanks to:
Jordan Schnabel and Cristian Carretero for filming and swimming and providing lifeguard services.
Raquel Nuno for filming and putting up with me.

Music from https://epidemicsound.com "Dubstep Mammoth 2" "Finally Here (Instrumental)" "The Last Arrival" "Sundown Love (Instrumental)"

Go to https://brilliant.org/nutshell/ to dive deeper into these topics and more with a free 30-day trial + 20% off for the first 200 people!
This video was sponsored by Brilliant. Thanks a lot for the support!

Sources & further reading:
https://sites.google.com/view/....sources-infinite-uni

What is outside of the universe? We know that the universe had a beginning 14 billion years ago and that it has been expanding ever since.
But something that is expanding should also have an edge, right?
What would you see if you went there?


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For most of our history, the human population grew slowly. Until new discoveries brought us more food and made us live longer. In just a hundred years the human population quadrupled.
This led to apocalyptic visions of an overcrowded earth. But the population growth rate actually peaked in the 1960s. Since then, fertility rates have crashed as countries industrialize and develop. World population is now expected to balance out at around 11 billion by the end of the century.
But the big picture conceals the details.

Let us look at one region in particular:
Sub-Saharan Africa. In 2019 it was home to a billion people living in 46 countries. Although its growth rate has slowed down in the last few decades, it is still much higher than in the rest of the world.
While some projections expect around 2.6 billion people others reckon with up to 5 billion by 2100.
Such growth would be a huge challenge for any society. But Sub-Saharan Africa is also the poorest region on earth.
So is Sub-Saharan Africa doomed? And why do the projections vary by 2.4 billion people?


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Black holes. Lets talk about them.


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Visit https://www.abcmouse.com/learn/youtube to learn more about our award-winning online learning program for children 2-8!

Join the fun with ABCmouse in our "Ready, Set, Freeze!" dance-along! 🎉 Get your little ones moving with this playful and energetic brain break. Watch as kids from all over groove and then freeze to the music, perfect for a quick and fun diversion between learning activities. 🕺🧒

👉 Why it’s great:

Encourages physical activity in a fun, engaging way
Helps improve concentration and motor skills
Perfect length for a quick and refreshing brain break'

Don’t forget to move, groove, and freeze! Subscribe for more fun learning videos and activities from ABCmouse. 🌟

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© Age of Learning, Inc. All rights reserved.

Visit https://www.abcmouse.com/learn/youtube to learn more about our award-winning online learning program for children 2-8!

🎵🛏️ Ready for nonstop learning fun? Kick things off with the classic "10 in the Bed" song, then keep the fun going with over an hour of ABCmouse music videos, stories, and educational cartoons! Perfect for preschoolers who love to sing, giggle, and explore. 🌟📚

"Ten in the Bed" or "10 in the Bed" (See below for lyrics)

This classic children's song "Ten in the Bed" is a great way to help young children learn basic math and subtraction skills. Have your child track how many are in the bed as they sing along!

Lyrics:
There were ten in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were nine in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were eight in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were seven in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were six in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were five in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were four in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were three in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There were two in the bed
and the little one said,
"Roll over! Roll over!"
So they all rolled over and one fell out.

There was one in the bed
and the little one said,
"Goodnight!"

👉 Discover more fun learning songs and educational videos by subscribing to our YouTube channel at https://YouTube.com/ABCmouse.

And visit https://www.abcmouse.com/learn/youtube to find out more about our award-winning online learning program for children 2–8!

© Age of Learning, Inc. All rights reserved.

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

This week we feature some of our favorite responses to Florian Rivière & Jim Walker’s art assignment “What, How, Where” presented, this time, by all of you! Find the original assignment here: dft.ba/-whw

All What, How, Wheres featured in this video can be found on this link:
https://theartassignment.tumbl....r.com/post/940709007

Special thanks to Tyler Graham for the episode intro and outro and to KatieContinues, swordsmith4, leshappydinosaur, Jane83Doe, followergerrard, Théo Evans, We Are St. Elmo’s Fire, Eoin Pluinceid, laufeyha, and DrivingOnWires for sound bites.

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

We addressed the myth, and now it's time for the truth of the tortured artist. Some art is born of pain and suffering, and reflects the darkest side of human experience. We like that about it. If you need help with mental and/or substance use disorders, contact SAMHSA’s National Helpline: 1-800-662-HELP (4357) or go to https://www.samhsa.gov/.

Did you know we give out art assignments? It's true!: https://www.youtube.com/playli....st?list=PLdGqz6dgvIz

To support our channel, visit: http://www.patreon.com/artassignment.

Thanks to our Grandmaster of the Arts Vincent Apa, and all of our patrons, especially Patrick Hanna, Nichole Hicks, David Moore, Jan Quale, and Constance Urist.

Corrections:
2:22 is not Roberto Matta but Nicolas Carone in his Rome studio, 1950
3:41 this list originated with Sister Corita Kent!: https://www.brainpickings.org/....2012/08/10/10-rules-

Subscribe for new episodes of The Art Assignment every other Thursday!

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This episode of Art Cooking explores the life, art, and eating habits of the great Impressionist artist Claude Monet. We prepare a menu based on the journals Monet kept during his years in Giverny, France, enjoying the freshest produce from the vegetable garden he kept along side the extensive flower and water gardens you recognize from his paintings.
#claudemonet #impressionism #arthistory

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.

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

In which we visit artist Kate Gilmore in her Brooklyn studio and receive the assignment to Walk on It.

INSTRUCTIONS - Walk On It

1. Find a big piece of wood or board

2. Paint it heavy with a color that you love

3. Put on a fabulous pair of shoes and walk on it. When it looks cool, you're done.

4. Upload it using #theartassignment

5. Fame and glory (your work might be in a future episode)

Learn more about Kate Gilmore: www.kategilmore.com
Watch an excellent video by MOCA Cleveland: http://vimeo.com/66081903
And here's one of me talking to Kate back in 2010 when she was commissioned to create a work for the Indianapolis Museum of Art: http://youtu.be/C3PjWmUJZsM

Also mentioned:
Jackson Pollock: http://youtu.be/6cgBvpjwOGo
Lynda Benglis: http://whitney.org/WatchAndLis....ten/Artists?play_id=
Bruce Nauman: http://www.pbs.org/art21/artists/bruce-nauman
Process Art: http://www.artspace.com/magazi....ne/art_101/process_a

There's nothing wrong with having your head in the clouds!

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub

Big thank you to my favorite cloud scientist Dione Rossiter for help researching this episode!

"The Cloudspotter's Guide" by Gavin Pretor-Pinney http://amzn.to/1s3kk2S

The International Cloud Atlas: http://bit.ly/1q0kgLy

William Rankin - The Man Who Rode the Thunder http://www.youtube.com/watch?v=0cqQzcChFG0

Bacteria that live in the clouds: http://www.pnas.org/content/110/7/2575.abstract

Mass of a cloud: http://mentalfloss.com/article..../49786/how-much-does

Amazing facts about clouds: http://blog.ted.com/2013/07/16..../8-illuminating-fact

A beginner's guide to being a cloudspotter: http://www.theguardian.com/lif....eandstyle/2014/apr/1

How clouds affect climate change: http://www.youtube.com/watch?v=sDo7saKaEys

The clouds and bushes in Super Mario Bros are the same thing: http://www.todayifoundout.com/....index.php/2010/01/th

Produced for PBS Digital Studios

Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
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Theme music:
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Stock images via Shutterstock

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We know pollution is a problem on earth, but we’re filling space with our junk too. And if we don’t figure out a way to clean up space junk, we could end our interstellar dreams before they even get started. Today, we’re visiting some cool engineers in Switzerland to learn about the space junk problem and the giant space claw that might be the perfect solution.

References: https://sites.google.com/view/....space-junk-reference

Filmed at ClearSpace - Lausanne, Canton Vaud, Switzerland

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Part 4 of our special series on Human Ancestry. Watch it all ►► http://bit.ly/OKTBSHuman
Watch Mutant Menu on BrainCraft: https://youtu.be/NrDM6Ic2xMM
↓↓↓More info and sources below ↓↓↓

In part 4 of our special series on human ancestry and evolution, we look into the future. Now that genetic engineering tools like CRISPR allow us to edit our genes, how will that impact human evolution going forward? Are designer babies or eugenics around the corner? Welcome to a world of nonrandom mutation and unnatural selection.

-----------
REFERENCES:

WHO fact sheet on obesity risks and death vs underweight: http://www.who.int/mediacentre..../factsheets/fs311/en

Jinek, M., Chylinski, K., Fonfara, I., Hauer, M., Doudna, J. A., & Charpentier, E. (2012). A programmable dual-RNA–guided DNA endonuclease in adaptive bacterial immunity. Science, 337(6096), 816-821.

Knoepfler, P. (2015). GMO Sapiens: the life-changing science of designer babies. World Scientific.

Enriquez, J., & Gullans, S. (2015). Evolving Ourselves. Oneworld Publications.

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson
Producer/editor/animator: Andrew Matthews
Producer: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
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Earth’s climate is changing in a big way, and it’s because there's more carbon dioxide in the atmosphere than at any point in our species’ history. But Earth’s climate has changed before. How do we know that this time we’re the cause? We know thanks to tiny bubbles of ancient atmosphere trapped in ice. #climatechange #globalwarming

Thanks to Dr. Jeff Severinghaus and the Scripps Institution of Oceanography

References: https://sites.google.com/view/....ice-cores-climate-ch

Special thanks to our Brain Trust Patrons:
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Air. I bet you never even notice that it’s there. Yet you are swimming in an ocean of it every day. If there’s a literal ton of air pressing down on you all the time, so why don’t we feel it? We look back at the history of physics to learn how we figured out air pressure, why vacuums don’t suck, and how people like Galileo, Torricelli, and Otto von Guericke changed science forever with a few simple experiments. #AirPressure #Physics #Atmosphere

DISCLAIMER: Do not perform the trash bag experiment without adult supervision. Always have a helper nearby so you don’t get trapped in the bag. And never ever put your head inside a trash bag, ever. Here’s how to try it yourself: https://exploratorium.edu/snacks/feeling-pressured

-----------
REFERENCES:
Walker, Gabrielle. An Ocean of Air: Why the Wind Blows and Other Mysteries of the Atmosphere. Houghton Mifflin Harcourt, 2008.

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3rd & 4th STD Maths | Fraction | CBSE Syllabus Mathematics

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This video is a part of Pebbles CBSE Syllabus Live Teaching Videos Pack. Class 1 to 12th Subject Packs are available in all leading Book Stores in all over India.

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Our Scientific Method for Kids video is a fun and engaging way to introduce the scientific method to children. In this video kids will learn all about the scientific method and its steps.

The Scientific Method steps we talk about in this video are: Make an Observation, Ask a Question, Make a hypothesis, Conduct your experiment, draw conclusions, and report the results. We hope you enjoy sharing this scientific method video with your kids and students.

After the video, download our free lesson plan full of other fun worksheets and activities about the Scientific Method: https://learnbright.org/lesson....s/science/scientific

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Welcome to Adding Fractions Word Problems with Mr. J! Need help with fraction word problems? You're in the right place!

Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with how to solve fraction word problems. Mr. J will go through two examples of adding fractions word problems and explain how to solve them step-by-step.

✅ Looking for more word problems?: https://www.youtube.com/playli....st?list=PLiT3pCvK_cf

✅ Need more help adding fractions? Check this video out: https://youtu.be/CoCmsyFQ_Xc

*About* : Math with Mr. J is a math education channel that offers instructional math videos to anyone looking for a little extra help with math!

*Email* : math5.mrj@gmail.com

*Music* : https://www.bensound.com/royalty-free-music

Hopefully this video is what you're looking for when it comes to fraction word problems.

Have a great rest of your day and thanks again for watching! ✌️✌️✌️

This video shows 4 practice problems that you can work on yourself and check your answers. These problems are to ensure you have mastered the concept of converting an improper fraction to a mixed number.

In this video we cover:

- The steps to convert improper fractions to mixed numbers
- Double-check your work by converting mixed number back to improper fractions
- Simplifying fractions

Other Videos Mentioned:
- Converting Improper Fractions to Mixed Numbers: https://youtu.be/eGF5AIRObyA
- Converting Mixed Numbers to Improper Fractions: https://youtu.be/p0NMJLjt_ns
- Simplifying Fractions: https://youtu.be/E_81dn_OYOA

Improved math is a channel created to provide additional instruction on essential math concepts. I’m passionate about math and I know first-hand how important math concepts are in the real world.

Teachers, parents, guardians, homeschoolers, and students can use these videos to help reinforce math skills.

For more information on math topics or for free printable worksheets and answer sheets, you can also visit my website at improvedmath.com

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