So, during times of inflation or deflation, why doesn't the government just set prices? It sounds reasonable, but price ceilings or floors just don't work. Adriene and Jacob explain why. Subsidies, however, are a little different, and sometimes they even work. We'll also explain that. Today you'll learn about stuff like price controls, deadweight loss, subsidies, and efficiency.

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Today we’re rounding out our planetary tour with ice giants Uranus and Neptune. Both have small rocky cores, thick mantles of ammonia, water, and methane, and atmospheres that make them look greenish and blue. Uranus has a truly weird rotation and relatively dull weather, while Neptune has clouds and storms whipped by tremendous winds. Both have rings and moons, with Neptune’s Triton probably being a captured iceball that has active geology.

This episode was brought to you by Squarespace http://www.squarespace.com/crashcourse

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--
Chapters:
Introduction: Uranus 00:00
Uranus's Structure 1:35
Uranus's Atmosphere 2:53
Uranus's Weird Tilt 3:55
Uranus's Moons 5:12
Uranus's Rings 6:00
Neptune's Structure 6:35
Neptune's Atmosphere 7:02
Neptune's Magnetic Field & Rings 8:10
Triton: Neptune's Largest Moon 8:36
The Discovery of Neptune 9:52
Review 11:27
--

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Follow Phil on Twitter: https://twitter.com/badastronomer

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PHOTOS/VIDEOS
Uranus http://en.wikipedia.org/wiki/V....oyager_2#/media/File [credit: NASA/JPL/Voyager mission]
Neptune https://www.nasa.gov/content/2....5-years-ago-voyager- [credit: NASA]
King George III http://en.wikipedia.org/wiki/G....eorge_III_of_the_Uni
Uranus from Earth picture by Phil Plait
Uranus, Earth size comparison http://en.wikipedia.org/wiki/F....ile:Uranus,_Earth_si [credit: NASA]
Uranus core, reconstructed from http://en.wikipedia.org/wiki/F....ile:Uranus-intern-en [credit: Wikimedia Commons]
Uranus http://www.spacetelescope.org/....static/archives/imag [credit: NASA, ESA, L. Sromovsky and P. Fry (University of Wisconsin), H. Hammel (Space Science Institute), and K. Rages (SETI Institute)]
Uranus storms http://www.keckobservatory.org..../images/made/images/ [credit: Imke de Pater (UC–Berkeley)/Keck Observatory]
Uranus and rings (tilt demonstration) http://en.wikipedia.org/wiki/U....ranus#/media/File:Ur [credit: Hubble Space Telescope - NASA Marshall Space Flight Center]
Uranus with rings and moons http://www.eso.org/public/images/eso0237a/ [credit: ESO]
Miranda http://en.wikipedia.org/wiki/M....oons_of_Uranus#/medi [credit: NASA]
Verona Rupes http://apod.nasa.gov/apod/ap110404.html [credit: NASA]
Neptune’s Interior https://solarsystem.nasa.gov/m....ultimedia/display.cf [credit: Lunar and Planetary Institute]
Neptune clouds http://en.wikipedia.org/wiki/F....ile:Neptune_clouds.j [credit: NASA]
Neptune’s Great Dark Spot http://en.wikipedia.org/wiki/N....eptune#/media/File:N [credit: NASA / Jet Propulsion Lab]
Neptune’s Rings http://www.rolfolsenastrophoto....graphy.com/Astrophot [credit: Rolf Wahl Olsen / NASA/JPL (Voyager 2, NASA Planetary Data System)]
Triton http://en.wikipedia.org/wiki/T....riton_(moon)#/media/ [credit: NASA / Jet Propulsion Lab / U.S. Geological Survey]
Triton flipped http://en.wikipedia.org/wiki/F....ile:PIA01538_Triton_ [credit: NASA/JPL]
Triton Nitrogen Geysers http://en.wikipedia.org/wiki/T....riton_(moon)#/media/ NASA]

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

🎵📚 Join ABCmouse in this exciting 58-minute compilation of alphabet songs from A to Z! This preschool music compilation is perfect for kids to sing along and learn their ABCs in a fun and engaging way. Each letter song is designed to help children recognize and pronounce letters while enjoying catchy tunes and colorful animations. Perfect for TV time or anytime learning!

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In which John Green teaches you about Homer's Odyssey. If it was Homer's If Homer was even real. Anyway, that stuff doesn't really matter. John teaches you the classic, by which I mean classical, epic poem, the Odyssey. The Journey of Odysseus as he made his way home after the conclusion of the Trojan War is the stuff of legend. Literally. John will teach you about the double standard in Greek culture, Odysseus as jerk/hero, ancient PTSD, and cycles of violence. Also, there are no yogurt jokes. So think of that as a gift.

Consider supporting local bookstores by purchasing your books through our Bookshop affiliate link https://bookshop.org/shop/complexly​ or at your local bookseller.


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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."

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
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Chapters:
Introduction: Autonomic Nervous System 00:00
Sympathetic & Parasympathetic Nervous Systems 1:35
Origins - Comparing the Sympathetic & Parasympathetic Nervous Systems 3:23
Ganglia - Comparing the Sympathetic & Parasympathetic Nervous Systems 4:11
Axon Lengths - Comparing the Sympathetic & Parasympathetic Nervous Systems 5:30
Review 7:35
Credits 8:28

***

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Yoko Ono was an established artist before most of the world heard of her in 1968, and she continues to make groundbreaking work to this day. Who is Yoko Ono? What is her work? And why should you take her seriously? This is the case for Yoko Ono.


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We try not to get into too much great man history here at Crash Course, but we have to admit: Napoleon Bonaparte is a pretty big deal. Join us as we track the rise, further rise, fall, rise, fall, mortal fall, and posthumous rise of Napoleon. This guy changed France, he changed Europe, and in a lot of ways he changed the world.

Sources
-Al-Jabarti, Abd al-Rahman, Napoleon in Egypt: Al-Jabarti’s Chronicle of the French Occupation of 1798, Shmuel Moreh, ed. Princeton: Markus Wiener, 1993.
-Bell, David A. Napoleon: A Concise Biography. New York: Oxford University Press, 2015.
-Hunt, Lynn et al. Making of the West: Peoples and Cultures. Boston: Bedford St. Martin’s, 2019.
-Sperber, Jonathan. Revolutionary Europe, 1780-1850. 2nd ed. New York: Routledge, 2017.

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Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

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Sheep Trick or Treat
by Nancy E. Shaw
Illustrated by Margot Apple
Read by Let's Read Stories

What will happen when the sheep go trick-or-treating? Could there be wolves lurking in the woods, hoping to waylay them as they return home with their bags full of goodies? In crisp verse and whimsically eerie pictures, Nancy Shaw and Margot Apple tell the lively story of a remarkable Halloween adventure. Simple sentences, rhyming text, and a humorous tone make this the perfect treat for beginning readers. Fans of this adventuresome flock of sheep will not want to miss this Halloween treat.

Click here to purchase Sheep Trick or Treat: https://www.amazon.com/Sheep-T....rick-Treat-Nancy-Sha

Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h Today's episode has been sponsored by Squarespace. For more information, visit http://www.squarespace.com/artassignment

In which we explore Washington, DC's vast and diverse collection of landmarks, museums, and galleries - ranging from institutions like the Hirshhorn to the art-worthy metro system. Let's take a trip through Washington, DC.

Featuring the Renwick Gallery, American University Museum, Phillips Collection, Freer & Sackler Galleries, National Gallery of Art Sculpture Garden, National Museum of Women in the Arts, Hemphill Fine Arts, Adamson Gallery, Transformer, Vietnam Veterans Memorial, and the Hirshhorn Museum.

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How to convert binary to decimal.

Here's the more detailed explanation:
https://www.youtube.com/watch?v=64bXbK104qk

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#convertbinary
#binary
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These two ways of multiplying are much easier and faster than any way you ever learnt in school! What's more they are easy to remember - easier than the usual method!
But what do you think?

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Okay, you've got me - this is Pythagorus' theorum....
Really easy though!
In a right angled triangle the square of the two smaller sides added together is the same as the square of the diagonal.

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Head to http://actnow.climeworks.com/besmart and learn more about removing CO₂ from the air.
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One day around 15,000 years ago, a wall of ice 2,000 feet tall and 30 miles wide suddenly broke wide open, and it unleashed the largest flood that we know of in the history of Earth. Come and hit the road with me as we search for the geologic fingerprints of the Missoula Ice Age Floods, and learn the story of one of the worst natural disasters that’s ever happened!

High fives to Nick Zentner for educating me on the geology of Eastern Washington. He makes incredible geology videos on YouTUbe:
https://www.youtube.com/user/GeologyNick
https://www.youtube.com/watch?v=qHaL04gZQwc&list=PL18y1vgsGPLbl3wrSZwUyvkAiUJHZTS5Y

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00:00 Introduction
00:54 A geologic mystery
01:53 A very large lake
03:32 A mountain made of ice
05:15 The dam breaks
06:25 Biggest. Waterfall. Ever.
07:57 How the damage was done
10:10 Witnesses to destruction
10:49 A brave new idea
12:00 Stay curious.

This Mental Math Trick is the secret to doubling numbers instantly. With this trick you will be able to throw away the calculator (OK that is an exaggeration!)!

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#mathtrick
#basicmath
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Area of circles - a math lesson that is fast and easy to understand. Math is awesome! To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Earth has seasons, but what about the rest of the planets in the solar system? Let’s take a tour from Mercury to Pluto and see what seasons would be like on all our planetary neighbors. Bring a sweater!

LEARN MORE:

NASA Planet Fact Sheet:
https://nssdc.gsfc.nasa.gov/planetary/factsheet/

Winds of Mars:
http://bit.ly/2wvlH3p

Lakes of Titan:
https://sites.google.com/site/....alexanderghayes/Rese
http://www.nature.com/nature/j....ournal/v481/n7379/fu

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
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On this lesson, you will learn about multiplying exponents with same base. This exponent rule is often referred to as the exponent multiplication rule! For more MashUp Math content, visit http://www.mashupmath.com and join our free mailing list! :) (algegbra)

This lesson answers the following questions: How do I multiply exponents with the same base? What is an exponent? How do a simplify exponents?

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Let's explore the difference between similar and congruent figures (similarity vs. congruence) in this conceptual mini-lesson.

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Understand congruence and similarity using physical models, transparencies, or geometry software.

Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.

What does it mean when two figures are similar?
What does it mean when two figures are congruent?
What is the difference between similarity and conrguence?

Image Credit: Emojis provided free by http://emojione.com

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The first thing a baby giraffe experiences after being born is a 2 meter fall straight down to the ground. But within an hour, it’s standing, walking, and nursing on its own. And a blue whale calf, after nearly a year growing inside mom, can swim to the surface moments after being born. Human babies on the other hand? We’re born unable to move or eat on our own, we can’t communicate or fully sense our world, and we leak EVERYWHERE. If humans are so smart, why are our babies so… un-smart? You may think it’s all about head size, but the real science is more complex.

References: https://sites.google.com/view/....why-babies-helpless-

Note: In videos like this one, we use the terms male and female to refer to biological sex and typical secondary characteristics seen across the human population.

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In this lesson, we will work through three practice problems where you have to find the standard equation of a circle (also known as the standard equation of a circle). Find the equation of the circle...

Tags: find the equation of the circle, equation of a circle, standard form of a circle, standard equation of a circle, general form of a circle, general equation of circle, center radius form, radius equation, center and radius calculator, find the center and radius of the circle, standard form equation of a circle, circle graph equation

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