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Nai-Ni Chen Dance Company’s Celebration of the Lunar New Year of the Monkey
February 8th marks the beginning of the Chinese Lunar New Year, and the Nai-Ni Chen Dance Company is coming to help us all celebrate. The festivities begin on February 6th at the New Jersey Performing Arts Center in Newark. 2016 being the Year of the Monkey, it should be a good one. And if you’re hungry for really good Chinese food after the show, there will be a “Feast of the Monkey King” banquet across the street at the Robert Treat Crystal Ballroom. Christopher Benincasa recently spoke
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On Background: Fighting an ideology
Zanny Minton Beddoes, our editor-in-chief, and James Harding, the BBC’s director of news, analyse the week’s stories. This week: How do you fight an ideology?
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Money talks: A sweet story
The EU is to abolish its quotas on sugar-beet production. Who are the winners and losers? Also: as video games get better and job prospects worse, more young men in America are spending their time in an alternate reality. Plus: are papers written by female economists clearer than ones written by men? And with a British election in the offing, our Buttonwood columnist discusses how the markets might react. Hosted by Simon Long.
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Coffee Break Spanish Espresso 007
Coming up in this episode:

In this week’s Coffee Break Spanish Espresso Mark talks about the word por and also looks at feminine nouns which use masculine articles. Fernanda introduces the expression es una lástima que in the Subjunctive of the Week segment, and our quotation focuses on knowledge and how little – or how much – we have.

View the video episode (members only)

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NASA Discovers Seven New Planets
NASA has just discovered 7 Earth-like planets! (01:24)
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Introductory Conservation of Momentum Explosion Problem Demonstration
Now that we have learned about conservation of momentum, let’s apply what we have learned to an “explosion”. Okay, it’s really just the nerd-a-pult launching a ball while on momentum carts.
Want lecture notes?
This is an AP Physics 1 Topic.

Content Times:
0:38 The demonstration
1:16 The known values
2:07 Solving the problem using conservation of momentum
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Introductory Perfectly Inelastic Collision Problem Demonstration
A perfectly inelastic collision is demonstrated and analyzed.
Want lecture notes?
This is an AP Physics 1 Topic.

Content Times:
0:08 Demonstrating the Perfectly Inelastic Collision
0:41 Known values
1:34 Using Conservation of Momentum
2:22 Both objects have the same final velocity
3:37 Measuring the final velocity
4:05 Determining the relative error
4:45 Fruit

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Introductory Elastic Collision Problem Demonstration
An elastic collision is demonstrated and analyzed.
Want lecture notes?
This is an AP Physics 1 Topic.
A big thank you to Mr. Becke for being a guest in today’s video!

Content Times:
0:25 Reading and translating the problem
1:17 The demonstration
1:52 Solving for velocity final of cart 2
3:46 Measuring the velocity final of cart 2
4:25 Checking if kinetic energy is conserve

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You Can't Run From Momentum! (a momentum introduction)
Two kids walk through the woods discussing momentum. I mean, who wouldn’t?

Okay, fine. It’s a basic introduction to the concept of momentum.
Want Lecture Notes? This is an AP Physics 1 Topic.

Next Video: Force of Impact Equation Derivation

Multilingual? Please help

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Review of Mechanical Energy and Momentum Equations and When To Use Them!
By the time students learn about all the equations for mechanical energy, momentum, impulse and impact force, they often start to confuse the equations with one another. This is a straightforward, simple look at all of those equations and when to use them.
This is an AP Physics 1 Topic. Want Lecture Notes?

Content Times:
0:14 Tacky Sweater Day!
0:22 Conservation of Mechanical Energy
0:54

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2D Conservation of Momentum Example using Air Hockey Discs
A 28.8 g yellow air hockey disc elastically strikes a 26.9 g stationary red air hockey disc. If the velocity of the yellow disc before the collision is 33.6 cm/s in the x direction and after the collision it is 10.7 cm/s at an angle 63.4° S of E, what is the velocity of the red disc after the collision? This is an AP Physics 1 topic. Want Lecture Notes?

Content Times:
0:12 The problem
1:49 Breaking the ini

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Professor Lewin Introduces Velocity and Acceleration
Lewin introduces velocity and acceleration to his students first by drawing graphs on his famous chalk boards and then by using an awesome demonstration. He actually fires a gun in his class and measures the velocity of the bullet! This video is probably too much to show high school students in class, but it's great for a teacher who needs to brush up on velocity and acceleration. (51:08)
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Skip Counting by 3 - To "Where is Thumbkin?"
This is an easy way to memorize the multiplication tables. Skip count to the familiar tune of "Where is Thumbkin?" (00:44)
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Pulled String Flower Painting Technique for Beginners
How is this possible? Just watch and see! (12:25)
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Emotion in Art
(Very brief frontal nudity in a sculpture.) Emotions play a critical role in both the painting process as well as the experience of the viewer. In this short video, artist Jill Poyerd discusses how emotional connections take place, the role of beauty in art, and how artists communicate emotion in their work. (12:04)

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Where Do Mountains Come From?
Do you like to go hiking like Jessi and Squeaks do? Have you ever wondered how those mountains you’re hiking on got there? Check out this episode to learn how mountains form, and how mountains can keep growing! (03:50)

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#383: Crimes of state: When a nation goes from protector to perpetrator

Criminologist Penny Green explains how states, entrusted to define crimes and enforce the laws that deter them, can themselves be complicit in the worst social harms. Professor Green is director of the International State Crime Initiative, which seeks to understand how states can become perpetrators rather than protectors, and how civil society
Author(s): up-close@unimelb.edu.au (University of Melbourne)

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Rights not set

The World War One Song
Here is a catchy way to remember the basic facts about World War I. 
Lyrics and recording by Matt Beat. All rights reserved. All images used in this video found in the public domain. (03:14)

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Volume | Measurement | Pre-Algebra | Khan Academy
Volume is a measurement in the 3rd dimension. This means that it not only has width and height, but it has depth as well. Let's watch this video in which we get a great explanation of how we measure volume. (07:50)

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Early American Trade
This is an amateur video about early trade in America. There are a few typographical errors. There is no voice narration, just words. (03:02) Music is by Coldplay.
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