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• 06:43

### IIT JEE Position Vectors

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2010 IIT JEE Paper 1 problem 32 Position Vectors More free lessons at: http://www.khanacademy.org/video?v=GDXyGy5TjnI

• 15:14

### IIT JEE Trigonometry Problem 1

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2010 IIT JEE Paper I #29 Trigonometry problem More free lessons at: http://www.khanacademy.org/video?v=X7GT9JKoAbo

• 07:05

### IIT JEE Integral Limit

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2010 IIT JEE Paper 1 #34 Integral Limit More free lessons at: http://www.khanacademy.org/video?v=pnwrNnZGVEw

• 12:49

### IIT JEE Trigonometric Constraints

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2010 IIT JEE Paper 1 Problem 47 Trigonometric Constraints More free lessons at: http://www.khanacademy.org/video?v=EjtjdJZ2x8w

• 09:55

### IIT JEE Trigonometric Maximum

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2010 IIT JEE Paper 1 Problem 48 Trigonometric Maximum More free lessons at: http://www.khanacademy.org/video?v=tzR9jUCSniQ

• 11:30

### IIT JEE Lagrange's Formula

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2010 IIT JEE Paper 1 Problem 49 Lagrange's Formula More free lessons at: http://www.khanacademy.org/video?v=rndex9FCIdo

• 14:00

### IIT JEE Differentiability and Boundedness

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2010 IIT JEE Paper 1 Problem 40 Differentiability and Boundedness More free lessons at: http://www.khanacademy.org/video?v=FIt1RNiCO6U

• 09:19

### IIT JEE Trace and Determinant

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2010 IIT JEE Paper 1 Problem 43 Trace and Determinant More free lessons at: http://www.khanacademy.org/video?v=5S03uylNn-Q

• 08:14

### IIT JEE Divisible Determinants

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2010 IIT JEE Paper 1 Problem 44 Divisible Determinants 2 More free lessons at: http://www.khanacademy.org/video?v=9vlsBN3pFE0

• 09:29

### IIT JEE Function Maxima

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2010 IIT JEE Paper 1 problem 36 Function Maxima More free lessons at: http://www.khanacademy.org/video?v=2E_DB5VuAoo

• 07:48

### IIT JEE Diameter Slope

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2010 IIT JEE Paper 1 problem 37 Diameter Slope More free lessons at: http://www.khanacademy.org/video?v=pdXcf5ZWHf0

• 07:21

### IIT JEE Complex Numbers (part 1)

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2010 IIT JEE Paper 1 Problem 39 Complex Numbers (part 1) More free lessons at: http://www.khanacademy.org/video?v=_5ei_I02huY

• 07:26

### IIT JEE Complex Numbers (part 2)

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2010 IIT JEE Paper 1 Problem 39 Complex Numbers (part 2) More free lessons at: http://www.khanacademy.org/video?v=pQwoBOpVoWw

• 12:44

### IIT JEE Circle Hyperbola Intersection

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2010 IIT JEE Paper 1 Problem 46 Circle Hyperbola Intersection More free lessons at: http://www.khanacademy.org/video?v=6g3DPg2HqGw

• 03:09

### IIT JEE Complex Numbers (part 3)

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2010 IIT JEE Paper 1 Problem 39 Complex Numbers (part 3) More free lessons at: http://www.khanacademy.org/video?v=FwA_UZkI-JM

• 10:26

### IIT JEE Perpendicular Planes (Part 1)

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2010 IIT JEE Paper 1 #30 normal vector and planes (Part 1) More free lessons at: http://www.khanacademy.org/video?v=2u535-HVJ_o

• 08:05

### IIT JEE Perpendicular Plane (part 2)

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2010 IIT JEE Paper 1 #30 normal vector and planes (Part 2) More free lessons at: http://www.khanacademy.org/video?v=66pQLO--Ghk

• 09:54

### IIT JEE Hairy Trig and Algebra (Part 2)

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2010 IIT JEE Paper 1 #38 Hairy Trig and Algebra (Part 2) More free lessons at: http://www.khanacademy.org/video?v=6t9ogglXNIM

• 06:28

### IIT JEE Hairy Trig and Algebra (Part 3)

317 views / 0 likes - added

2010 IIT JEE Paper 1 #38 Hairy Trig and Algebra (Part 3) More free lessons at: http://www.khanacademy.org/video?v=KVRpXvrsSKM

• 13:44

### IIT JEE Integral with Binomial Expansion

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2010 IIT JEE Paper 1 Problem 41 Integral with Binomial Expansion and Algebraic Long Division More free lessons at: http://www.khanacademy.org/video?v=1-5sTDLrcp4

• 06:16

### IIT JEE Circle Hyperbola Common Tangent Part 1

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2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tan More free lessons at: http://www.khanacademy.org/video?v=MhLfun2Vask

• 12:17

### IIT JEE Circle Hyperbola Common Tangent Part 5

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2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 5 More free lessons at: http://www.khanacademy.org/video?v=rPoqpQcgNv4

• 10:45

### IIT JEE Circle Hyperbola Common Tangent Part 2

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2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 2 More free lessons at: http://www.khanacademy.org/video?v=0imeUgSxR10

• 08:55

### IIT JEE Circle Hyperbola Common Tangent Part 3

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2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 3 More free lessons at: http://www.khanacademy.org/video?v=RomnHMWSLoE

• 10:36

### IIT JEE Circle Hyperbola Common Tangent Part 4

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2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 4 More free lessons at: http://www.khanacademy.org/video?v=eGo8C2Jshzs

• 11:59

### IIT JEE Symmetric and Skew-Symmetric Matrices

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2010 IIT JEE Paper 1 Problem 42 Symmetric and Skew-Symmetric Matrices More free lessons at: http://www.khanacademy.org/video?v=G6OoxGmJzuc

• 13:11

### IIT JEE Algebraic Manipulation

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2010 Paper 1 problem 35 Algebraic Manipulation More free lessons at: http://www.khanacademy.org/video?v=zs5LM7dxyTo

• 10:10

### IIT JEE Hairy Trig and Algebra (part 1)

352 views / 0 likes - added

2010 Paper 1 problem 38 Hairy Trig and Algebra.avi More free lessons at: http://www.khanacademy.org/video?v=dOxXl_6BDQc

• 13:43

### IIT JEE Complex Root Probability (part 1)

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2010 Paper 1 problem 31 Math (part 1) More free lessons at: http://www.khanacademy.org/video?v=bV_HSZ_W0nk

• 08:24

### IIT JEE Complex Root Probability (part 2)

386 views / 0 likes - added

2010 Paper 1 problem 31 Math (part 2).avi More free lessons at: http://www.khanacademy.org/video?v=S3KMyYYGuPE

• 15:00

### 2010 IIT JEE Paper 1 Problem 50 Hyperbola Eccentricity

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• 06:37

### Equivalent Vectors Examples

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Equivalent vectors examples

• 02:55

### Example Comparing X Components Of Vectors

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Example comparing x components of vectors

• 07:42

343 views / 0 likes - added

• 09:01

### Angles Of Vectors From Components

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Angles of vectors from components

• 05:41

### Understanding Multiplying Vectors By Scalars

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Understanding multiplying vectors by scalars

• 06:22

### Visually Adding And Subtracting Vectors

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• 13:54

### How Do You Design a Just Society? | Thought Experiment: The Original Position

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Thought Experiment: John Rawls’ Original Position Support us on Patreon! https://patreon.com/pbsideachannel We got merch! http://bit.ly/1U8fS1B Tweet us! http://bit.ly/pbsideachanneltwitter Idea Channel Facebook! http://bit.ly/pbsideachannelfacebook Talk

• 03:59

### Vectors and Scalars - Physics

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Learn the difference between vectors and scalars in this simple tutorial. Vectors have direction while scalars do not. You will be a physics expert in no time. My name is Chris and my passion is to teach math. Learning should never be a struggle which is

• 06:59

### Unit Vectors

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What unit vectors are and how to construct them More free lessons at: http://www.khanacademy.org/video?v=lQn7fksaDq0

• 25:11

### Defining the angle between vectors

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Introducing the idea of an angle between two vectors More free lessons at: http://www.khanacademy.org/video?v=5AWob_z74Ks

• 12:54

### Visualizing Vectors in 2 Dimensions

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Visualizing, adding and breaking down vectors in 2 dimensions More free lessons at: http://www.khanacademy.org/video?v=xp6ibuI8UuQ

• 08:39

### Introduction to Vectors and Scalars

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Distance, displacement, speed and velocity. Difference between vectors and scalars More free lessons at: http://www.khanacademy.org/video?v=ihNZlp7iUHE

• 07:58

### Unit Vectors and Engineering Notation

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Using unit vectors to represent the components of a vector More free lessons at: http://www.khanacademy.org/video?v=2QjdcVTgTTA

• 13:57

### Linear Algebra: Gram-Schmidt example with 3 basis vectors

357 views / 0 likes - added

Gram-Schmidt example with 3 basis vectors More free lessons at: http://www.khanacademy.org/video?v=ZRRG386v6DI

• 10:06

### Vectors And 2D Motion: Crash Course Physics #4

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Continuing in our journey of understanding motion, direction, and velocity... today, Shini introduces the ideas of Vectors and Scalars so we can better understand how to figure out motion in 2 Dimensions. But what does that have to do with baseball? Or tw

• 27:01

### Lin Alg: Representing vectors in Rn using subspace members

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Showing that any member of Rn can be represented as a unique sum of a vector in subspace V and a vector in the orthogonal complement of V. More free lessons at: http://www.khanacademy.org/video?v=M6lFqkqvUgo

• 14:45

### Distance Between Planes

349 views / 0 likes - added

2010 IIT JEE Paper 1 Problem 51 Distance Between Planes More free lessons at: http://www.khanacademy.org/video?v=v8plb6V8BQo

• 12:58

### Complex Determinant Example

366 views / 0 likes - added

2010 IIT JEE Paper 1 Problem 53 Complex Determinant More free lessons at: http://www.khanacademy.org/video?v=E7OkUomRq1Q

• 14:18

### Series Sum Example

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2010 IIT JEE Paper 1 Problem 54 Series Sum More free lessons at: http://www.khanacademy.org/video?v=A6fbDssPeac

• 12:59

### Simple Differential Equation Example

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2010 IIT JEE Paper 1 Problem 56 Differential Equation More free lessons at: http://www.khanacademy.org/video?v=fqnPabGV6A4

• 11:03

### Trigonometric System Example

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2010 IIT JEE Paper 1 Problem 55 Trigonometric System More free lessons at: http://www.khanacademy.org/video?v=Y2ed-g8Lpdc

• 09:13

### Unit Vector Notation (part 2)

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More on unit vector notation. Showing that adding the x and y components of two vectors is equivalent to adding the vectors visually using the head-to-tail method More free lessons at: http://www.khanacademy.org/video?v=595Tiga1gIg

• 04:41

### What is a vector? - David Huynh

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View full lesson: http://ed.ted.com/lessons/what-is-a-vector-david-huynh Physicists, air traffic controllers, and video game creators all have at least one thing in common: vectors. But what exactly are they, and why do they matter? David Huynh explains h

• 10:14

### Calculus Proof that a=v^2/r

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Using calculus and vectors to show that centripetal acceleration = v^2/r

• 09:20

### 2 dimensional projectile motion (part 1)

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Using vectors to solve 2 dimensional projectile motion problems

• 07:34

### Vector Forces

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Easy to understand 3D animations explaining force vectors.

• 14:25

### Vector Triple Product Expansion (very optional)

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A shortcut for having to evaluate the cross product of three vectors More free lessons at: http://www.khanacademy.org/video?v=b7JTVLc_aMk

• 18:53

### Linear Algebra: Vector Triangle Inequality

253 views / 0 likes - added

Proving the triangle inequality for vectors in Rn More free lessons at: http://www.khanacademy.org/video?v=PsNidCBr5II

• 11:16

### Linear Algebra: Introduction to Orthonormal Bases

328 views / 0 likes - added

Looking at sets and bases that are orthonormal -- or where all the vectors have length 1 and are orthogonal to each other. More free lessons at: http://www.khanacademy.org/video?v=7BFx8pt2aTQ

• 20:35

### Linear Combinations and Span

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Understanding linear combinations and spans of vectors More free lessons at: http://www.khanacademy.org/video?v=Qm_OS-8COwU

• 16:53

### Span and Linear Independence Example

226 views / 0 likes - added

Determining whether 3 vectors are linearly independent and/or span R3 More free lessons at: http://www.khanacademy.org/video?v=9kW6zFK5E5c

• 18:09

### Proof: Relationship between cross product and sin of angle

284 views / 1 likes - added

Proof: Relationship between the cross product and sin of angle between vectors More free lessons at: http://www.khanacademy.org/video?v=7MKA2QlKvHc

• 14:20

### Matrices to solve a vector combination problem

237 views / 0 likes - added

Using matrices to figure out if some combination of 2 vectors can create a 3rd vector More free lessons at: http://www.khanacademy.org/video?v=gsNgdVdAT1o

• 09:54

### Unit Vector Notation

208 views / 0 likes - added

Expressing a vector as the scaled sum of unit vectors More free lessons at: http://www.khanacademy.org/video?v=FaF3v-ezbSk

• 09:47

### Calculating dot and cross products with unit vector notation

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Calculating the dot and cross products when vectors are presented in their x, y, and z (or i,j, and k) components. More free lessons at: http://www.khanacademy.org/video?v=enr7JqvehJs

• 05:24

95 views / 0 likes - added

3D visualization of partial derivatives and gradient vectors. My Patreon account is at https://www.patreon.com/EugeneK

• 11:35

### Null Space 3: Relation to Linear Independence

264 views / 0 likes - added

Understanding how the null space of a matrix relates to the linear independence of its column vectors More free lessons at: http://www.khanacademy.org/video?v=vFctYRhK2M0

• 12:07

### Linear Algebra: Transpose of a Vector

287 views / 0 likes - added

Transpose of a column vector. Matrix-matrix products using vectors More free lessons at: http://www.khanacademy.org/video?v=lSoaMCNKfAg

• 21:38

### Linear Algebra: Determinant and area of a parallelogram

411 views / 0 likes - added

Realizing that the determinant of a 2x2 matrix is equal to the area of the parallelogram defined by the column vectors of the matrix More free lessons at: http://www.khanacademy.org/video?v=n-S63_goDFg

• 04:08

### Cross Product and Dot Product: Visual explanation

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Visual interpretation of the cross product and the dot product of two vectors. My Patreon page: https://www.patreon.com/EugeneK

• 02:16

### How Do We Measure the Distance to Stars?

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The answer lies in the tiny shifts we see in a star's position as Earth revolves around the sun.

• 21:46

### Quantum Operators

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Quantum Operators for measurements of Energy, Position, and Momentum in Quantum Physics. My Patreon page is at https://www.patreon.com/EugeneK

• 09:21

### Water Demonstrations part two--Hero's Fountain // Homemade Science with Bruce Yeany

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Hero's fountain is a device that lifts water to a higher height that it's origin in order to move to a lower position. This simple device was invented almost 2000 years ago and has several variations in making it but they all operate using the same concep

• 01:45

### Fish Hammer

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People love to break ocean stuff. The Fish Hammer empowers fish to break people stuff. As Smashie swims around the aquarium, his position is tracked with a webcam, using software written in C++ using openFrameworks and OpenCV. The hammer follows him aroun

• 03:28

### The Beatles - Revolution

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The Beatles 1 Video Collection is Out Now. Get your copy here: http://thebeatles1.lnk.to/DeluxeBluRay “When you talk about destruction, don’t you know that you can count me out" “I did the slow version and I wanted it out as a single: as a statement of Th

• 08:20

### How To Survive A Plane Crash!? - Myths Debunked

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It's something we've all worried about - will the plane you’re on crash in a horrible accident killing everyone on board? But is the brace position we’re all told to use actually designed to kill us? And where exactly should you sit on a plane to increase

• 01:22

### Mathemagic - (a+b)²=a²+2ab+b² - But Why?

190 views / 0 likes - added

http://www.youtube.com/watch?v=sv2iHQIpZW8 - Pythagoras Theorem explained by Bawa. One of the elementary formula in high school mathematics, most of us know this formula. But do we actually know why? In this video Khurshed Batliwala, fondly called as Bawa

• 06:39

### Pythagoras Theorem Explained - Mathemagic with Bawa

185 views / 0 likes - added

http://www.youtube.com/watch?v=49_TJymgXgM - Mathemagic - (a+b)²=a²+2ab+b² - But Why? One of the elementary formula in high school mathematics, most of us know this formula. But do we actually know why? In this video Khurshed Batliwala, fon

• 01:07

### This Vending Machine Takes Bottles And Gives Food To Stray Dogs In Exchange

582 views / 2 likes - added

A company in Turkey called Pugedon has created a somewhat bizarre but effective way to kill two birds with one stone – their vending machine in Istanbul takes bottles deposited for recycling and dispenses food for the city’s stray dogs. The ma

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• 06:56

### Inverters, How do they work ?

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Inverters have taken a prominent role in the modern technological world due to the sudden rise of electric cars and renewable energy technologies. Inverters convert DC power to AC power. They are also used in Uninterruptible Power Supplies, Control of Ele

• 24:12

### How to Solve a Rubik's Cube | WIRED

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WIRED's Robbie Gonzalez learned to solve a Rubik's cube from Tyson Mao, one of the co-founders of the World Cube Association. In two weeks, Robbie got his solve time down from 45 minutes with Tyson, to 20 minutes on his own, to under a minute on average.

• 02:58

### Toy Physics--Rollback Toy Challenge--Homemade Science with Bruce Yeany

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The rollback toy idea is put to the test to see how far we can get it to travel when powered by just three rubber bands. It is a great example of changing potential mechanical energy into kinetic motion energy. Fine tuning and given a long and wide enough

• 05:53

### How does a Stepper Motor work ?

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We thank our patrons for making LE's educational service sustainable. Please support us at Patreon.com so that we will have the capability to release 2 videos/month.https://www.patreon.com/LearnEngineeringStepper motors are the one of the most widely used

• 05:16

### Scientific Poster | What is this thing?!

166 views / 0 likes - added

What are scientific posters and how are they used? And which snack should you position yourself by for maximum poster exposure? Trying to document grad school one YouTube video at a time, from lab equipment to genetics lessons to interviews with other stu

• 04:44

### What Is The Heisenberg Uncertainty Principle? - Chad Orzel

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View full lesson: http://ed.ted.com/lessons/what-is-the-heisenberg-uncertainty-principle-chad-orzel The Heisenberg Uncertainty Principle states that you can never simultaneously know the exact position and the exact speed of an object. Why not? Because ev

• 01:36

### Fetching Omnicopter

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Fetching Omnicopter We have developed a computationally efficient trajectory generator for six degrees-of-freedom multirotor vehicles, i.e. vehicles that can independently control their position and attitude. The trajectory generator is capable of generat

• 05:13

### How does impeachment work? - Alex Gendler

194 views / 0 likes - added

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-does-impeachment-work-alex-gendler For most jobs, it’s understood that you can be fired – whether for crime, incompetence, or just poor performance.

• 06:09

### Free Immersion Diver Goes 107 Meters Deep (351 ft)

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On the very last day of #VB2018 Alessia Zecchini cements her position as the winner among the female athletes and the absolute overall points winner for the entire competition (including beating the men!) -Diveye Cinematography & Technology: Michal Bi

• 04:23

### The Sun’s Surprising Movement Across The Sky - Gordon Williamson

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View full lesson: http://ed.ted.com/lessons/the-sun-s-surprising-movement-across-the-sky-gordon-williamson Suppose you placed a camera at a fixed position, took a picture of the sky at the same time every day for an entire year, and overlaid all of the ph

• 02:11

### Ride of the Valkyries - TrackMania

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I created a race track matching "Ride of the Valkyries" by Richard Wagner using TrackMania's level editor. When I learned TrackMania had a deterministic physics engine I instantly wanted to try this. Turns out 3-D music synchronization is more complicated

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• 02:08

### Mysteries Of Vernacular: Lady - Jessica Oreck And Rachael Teel

225 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-lady-jessica-oreck-and-rachael-teel Why do we call women ladies? Well, etymologically-speaking, the word comes from the Old English words for hlaf (bread) and daege (maid), which, combine

• 15:13

### Numbers And Free Will - Numberphile

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Artificial Intelligence gets Edward Frenkel thinking about vectors and numbers --- and the nature of human existence!? Extra interview footage: http://youtu.be/HctVeOR1tmU More Numberphile videos with Prof Frenkel: http://bit.ly/Frenkel_Playlist Prof Fren

• 01:39

### Robot Learns to Flip Pancakes

195 views / 0 likes - added

Pancake day special! The video shows a Barrett WAM robot learning to flip pancakes by reinforcement learning. The motion is encoded in a mixture of basis force fields through an extension of Dynamic Movement Primitives (DMP) that represents the synergies

• 03:35

### Identical track race science /// Homemade Science with Bruce Yeany

320 views / 0 likes - added

Two identical tracks have several marked release points, what position on the curved path will get a ball to the bottom of the track the quickest. The movement on the tracks can be compared to the movement of pendulums and to the movement of balls down a

• 02:29

### Division with Zero - Maths Tricks #4

187 views / 0 likes - added

In this video Bawa first explains what is division and then goes on to talk about division by zero. You will understand exactly why anything divided by zero is not defined, zero divided by anything is zero and zero divided by itself is indeterminate. This

• 13:39

### Learn how computers add numbers and build a 4 bit adder circuit

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Let's build a circuit that adds numbers! Binary addition is even easier than decimal addition since you don't have to know how to add numbers larger than 1. Support me on Patreon: https://www.patreon.com/beneater You can get all the components used in thi

• 22:11

### g-conjecture - Numberphile

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Discussing h-vectors and the g-conjecture. Featuring June Huh from the Institute for Advanced Study at Princeton University. More links & stuff in full description below ↓↓↓ A little extra bit from this interview: https://youtu.be/cFKGX3vAs_Q Shapes in hi

• 02:40

### Teleoperated Young Child Robot

330 views / 1 likes - added

Cite this contribution - Teleoperation: "Telexistence and Teleoperation for Walking Humanoid Robots" online at https://arxiv.org/abs/1809.01578 - Walking: "A Benchmarking of DCM Based Architectures for Position and Velocity Controlled Walking of Humanoid

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• 01:02 New

### 'Invisibility cloak' that could hide tanks and troops looks closer to reality

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Harry Potter’s ‘invisibility cloak’ appears closer to reality as Canadian camouflage manufacturer Hyperstealth Biotechnology has applied for patents on its ‘Quantum Stealth’ material. The ‘inexpensive and paper-thin&rsq

• 13:21

### Twin paradox: the real explanation

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There is no more famous conundrum in special relativity than the Twin Paradox.  One twin travels at great distance at the speed of light and returns, much younger than the other twin.  Yet who is moving and who isn’t?  It is commonly claimed that accelera

• 05:23

### Horizontal Barking Dog - Periodic Table Of Videos

292 views / 0 likes - added

It's our favourite "Barking Dog" experiment - but in a new position. Previous Barking Dog videos: http://bit.ly/Barking_Dog Featuring The Professor (Sir Martyn Poliakoff) and senior technician Neil Barnes. More chemistry at http://www.periodicvideos.com/

• 01:00

### Tons of planets can support life. Kepler Orrery IV

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All of the Kepler multi-planet systems (1705 planets in 685 systems as of 24 November 2015) on the same scale as the Solar System (the dashed lines). The size of the orbits are all to scale, but the size of the planets are not. For example, Jupiter is act

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• 04:19 Popular

### How do Cats Use Their Whiskers? Slow-Motion - Cats Uncovered - BBC

743 views / 6 likes - added

How do cats use their whiskers to catch their prey? Using slow motion you can see the whiskers move into an attack position... Taken from Cats Uncovered. Subscribe to BBC Earth: http://www.youtube.com/subscription_center?add_user=BBCEarth BBC Earth YouTub

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• 04:43

### Re: The Trouble With The Electoral College – Cities, Metro Areas, Elections and The United States

318 views / 0 likes - added

Discuss this video: http://reddit.com/r/cgpgrey The Trouble with The Electoral College: https://www.youtube.com/watch?v=7wC42HgLA4k How the Electoral College Works: https://www.youtube.com/watch?v=OUS9mM8Xbbw This vlog is a bit of a mess, but as the sayin

• 01:21

### Mussolini Speaks to the Americans - 1927

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Well, I don't like making subtitles/translations for speeches, so this is my last one. Just made this one to greet the Americans for being the country where most of my subscribers and views come from! This one went down in History as the very first newsre

• 05:45

### Visualization of Torques (Moments)

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This video demonstrates the concept of Torque, a.k.a. Moment or Moment of force. Visit my homepage, http://www.zutopedia.com/udia.html, or read about my latest book http://www.zutopedia.com Here are some notes: 1) Torques are often mentioned in context of

• 14:53

### How To Draw Big Nate

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Learn how to draw Big Nate! Once you're finished drawing him, trying drawing him in a different position. You can use the books or website to reference! http://www.bignatebooks.com EMAIL A PHOTO OF YOUR ART: myart@artforkidshub.com MAIL US YOUR ART: Art f

• 02:04

### The Untold Story of the Woman Who Saved Abraham Lincoln’s Life

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When Kate Warne first applied for a position at the Pinkerton Detective Agency, she was laughed at. Still, she persevered and soon became America’s first female detective. During her time at the agency, she uncovered a plot to assassinate Abraham Lincoln

• 39:54

### Pastry Chef Attempts to Make Gourmet Twix | Gourmet Makes | Bon Apptit

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Twix. Theyve been at the heart of a debate that goes back more than five decades. Lines have been drawn so intractable that friendships, relationships, even nations have been ruined. Who could forget the Great Twix Battle between the UK and Finland in 198

• 06:51

### NOVA | Zombies and Calculus (Part 2) | PBS

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• 03:26

### Cyborg Botany: Augmented plants as sensors, displays, and actuators

46 views / 0 likes - added

Plants can sense the environment, other living entities and regenerate, actuate or grow in response. Our interaction and communication channels with plant organisms in nature are subtle - whether it be looking at their color, orientation, moisture, positi

• 04:38

### Curiosity gets a gravimeter—repurposed instrument can now measure rock density

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The Curiosity rover landed on Mars without a gravimeter on board. But researchers realized that its accelerometers--normally used to determine the position of the rover--could be repurposed to measure the density of the rock it was passing over. These mea

• 03:28

### Wireless Power Transfer

207 views / 0 likes - added

Wireless power delivery has the potential to seamlessly power our electrical devices as easily as data is transmitted through the air. However, existing solutions are limited to near contact distances and do not provide the geometric freedom to enable aut

• 04:52

### How Small is an Atom?

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The size of an atom is only a few angstroms at most - there are 10 billion angstroms in 1 meter. This video also goes the basic parts of an atom (protons, neutrons, and electrons) and why the traditional model of the atom is not correct. Electrons are unp

• 03:17

### Jupiter's Moon IO is a World of Fire and Lava | The Planets | BBC Earth

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Io is the closest of Jupiters larger moons and the most volcanic world in our solar system, with over 300 active volcanoes, thanks to its proximity to the huge gravitational pull of Jupiter.Subscribe: http://bit.ly/BBCEarthSub Watch more: Planet Earth htt

• 01:47

### Presidential Punch Out | The Powerpuff Girls | Cartoon Network

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Blossom begins her campaign for the position of Student Body President. CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/1TxN5BJ About The Powerpuff Girls: About The Powerpuff Girls: Accidentally created in a lab

• 06:09

### Hydrodynamic Levitation!

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On a stream of water you can levitate light balls of all sizes and even disks and cylinders. The mechanism is not the Bernoulli effect... Want to make this at home? https://youtu.be/BppcHF2EdAY My friend Blake from InnoVinci emailed me with a cool idea fo

• 06:14

### Will Robots Become Conscious?

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What makes a brain or machine conscious? Will robots become more conscious than we are? One theory, which can actually calculate consciousness, is beginning to provide some answers. Subscribe: http://youtube.com/whatthephysics?sub_confirmation=1 ↓Want mor

• 02:42

### So What If I Look Different?

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By Pierce | Ready to "wear it out loud?” Merch store open, SHOP NOW: http://bit.ly/storybooth-merch | Subscribe: http://bit.ly/sub2storybooth | Record your story @ https://storybooth.com or our iPhone app for a chance to get animated. Comment, like, share

• 04:02

### Why Are Mosquitoes So Good At Carrying Disease?

236 views / 1 likes - added

Mosquitoes are one of the most annoying bugs on this planet, but they are also one of the most deadly. Why are they so good at carrying diseases? Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG Why Can’t We Get Rid of Mosquitoes ►►►►ht

• 02:54

### (ESL) Chimp's Memory

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TRANSCRIPT Chimp's Memory (2:54) 1. Professor is that as soon as Tetsuro Matsuzawa at the Kyoto Primate Research Institute in Japan has devised a memory test for the chimpanzees. 2. His star pupil is a seven-year-old chimpanzee. 3. Show him the numbers 1

• 06:21

44 views / 0 likes - added

These are the molecular machines inside your body that make cell division possible. Animation by Drew Berry at the Walter and Eliza Hall Institute of Medical Research. http://wehi.tv Special thanks to Patreon supporters: Joshua Abenir, Tony Fadell, Donal

• 30:34

### Princess Trixie Sparkle - Episode 3 - Escape from the Archives

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At long last we here at PTS present to you Princess Trixie Sparkle Episode 3: Escape from the Archives The morning after the switch, Twilight learns that Applejack and Fluttershy are staying in Ponyville and once in Canterlot Pinkie Pie and Rarity also go

• 02:38

### On Saturn It Occasionally Rains Diamonds.| The Planets | BBC Earth

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On Saturn it occasionally rains diamonds. Narrated by Brian Cox.Subscribe: http://bit.ly/BBCEarthSub Watch more: Planet Earth http://bit.ly/PlanetEarthPlaylist Blue Planet http://bit.ly/BluePlanetPlaylist Planet Earth II http://bit.ly/PlanetEarthIIPlaylis

• 02:41

498 views / 2 likes - added

Thanks to http://www.givewell.org/ for sponsoring this video! To learn more about the Against Malaria Foundation, visit: http://www.givewell.org/AMF or https://www.againstmalaria.com. Thanks also to our supporters on https://www.patreon.com/MinuteEarth __

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• 02:48

### A Moment in The Sun | The Planets | BBC Earth

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When the Sun first formed, there were no planets to see it rise until gravity formed four planetary siblings. Narrated by Brian Cox.Subscribe: http://bit.ly/BBCEarthSub Watch more: Planet Earth http://bit.ly/PlanetEarthPlaylist Blue Planet http://bit.ly/B

• 04:53

### Following The Sun: Crash Course Kids #8.2

546 views / 1 likes - added

Have you ever wondered why your shadow is longer sometimes and shorter others? It turns out it all has to do with that marvelous big ball of light in the sky; The Sun! This first series is based on 5th grade science. We're super excited and hope you enjoy

• 03:31

### The Ecliptic: Crash Course Kids #37.2

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So, what is the Ecliptic? Well, it has to do with the Zodiac constellations and our sun and how they move in relation to one another. It's kind of cool! In this episode, Sabrina chats about this imaginary line called the Ecliptic and its cycle in the sky.

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• 04:59

### Super Stars (Constellations): Crash Course Kids #31.1

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So, you know about stars. But what if those stars formed a super group like The Avengers? Well, then you have a Constellation! In this episode of Crash Course Kids, Sabrina chats about stars, constellations, and how humans have used constellations to tell

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• 03:49

### Constellation Location: Crash Course Kids #31.2

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Let's say you're looking for a specific constellation in the sky, but can't find it? That could be because you're on the wrong part of the planet to see it. In this episode of Crash Course Kids, Sabrina talks about how the Earth's rotation and axis can af

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• 03:19

### What do the Northern Lights Reveal? | The Planets | BBC Earth

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The solar winds scatter electrically charged particles that would hit and ravage the Earth were it not for its magnetic field. This is what the Northern Lights reveal and one of the reasons why life is able to exist on our planet. Featuring, Brian Cox. Su

• 04:09

### The Zodiac Constellations: Crash Course Kids #37.1

431 views / 0 likes - added

We've talked about constellations; groups of stars in the night sky that we assign names to. But there are a certain group of special constellations called The Zodiac that Sabrina is going to chat about. Gemini, Sagittarius, Scorpio? You've heard of them

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• 03:37

### Up, Up & Away: Crash Course Kids #16.2

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So... what makes the wind? You might be surprised to learn that it has to do with two of Earth's spheres; The Hydrosphere and the Geosphere. In this episode of Crash Course Kids, Sabrina takes us to the beach to chat about how the wind comes into being an

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• 05:27

### Converting Directly From Binary To Hexadecimal | Pre-Algebra | Khan Academy

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• 18:28

### 18 FASCINATING TRICKS TO TRY

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AWESOME TRICKS AND KIDS GAMES FOR YOU TO TRY There are so many cool ideas in this video for those who feel bored. Smart games, amazing origami crafts, and even some ancient philosophy! At the very beginning of this video, we prepared for you a lot of cool

• 04:01

### Earth's Rotation & Revolution: Crash Course Kids 8.1

585 views / 1 likes - added

So, have you ever wondered why we have seasons? Or maybe where the sun goes when it's night time? *Hint: It doesn't actually go anywhere* In this episode of Crash Course Kids, Sabrina talks about the Earth's rotation and revolution and how these things co

• 03:22

### A Disease's Guide to World Domination

65 views / 0 likes - added

Get 3 weeks of free access to CuriosityStream by visiting http://curiositystream.com/minute and using the promo code "minute" There's something surprising that helps determine how damaging a disease is: distance. Thanks also to our Patreon patrons https:/

• 08:30

### Multiplying And Dividing Negative Numbers | Pre-Algebra | Khan Academy

297 views / 0 likes - added

Multiplying and dividing negative numbers Watch the next lesson: https://www.khanacademy.org/math/arithmetic/absolute-value/abs_value_tutorial/v/absolute-value-and-number-lines?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous less

• 03:00

### Inverse Property Of Addition | Arithmetic Properties | Pre-Algebra | Khan Academy

328 views / 0 likes - added

The simple idea that a number plus its negative is 0 Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/order-of-operations/arithmetic_properties/v/inverse-property-of-multiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra M

• 09:17

### Unit Conversion Within The Metric System | Pre-Algebra | Khan Academy

260 views / 0 likes - added

Metric unit conversion Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/metric-system-tutorial/v/converting-within-the-metric-system?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? http

• 02:48

### Adding In Binary | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

332 views / 0 likes - added

• 07:34

### Hexadecimal Number System | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

301 views / 0 likes - added

• 10:00

### Introduction To Number Systems And Binary | Pre-Algebra | Khan Academy

234 views / 0 likes - added

• 03:57

### Seasons And The Sun: Crash Course Kids 11.1

534 views / 0 likes - added

Updated with graphics fixed. Thanks for pointing that out! Ever wonder why we have seasons? A lot of people think it's because the Earth gets further away from the sun in winter, and closer in the summer. But, it's actually more interesting than that. In

• 03:43

### Converting From Decimal To Hexadecimal Representation | Pre-Algebra | Khan Academy

238 views / 0 likes - added

• 03:52

### Converting From Decimal To Binary | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

309 views / 0 likes - added

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/large-number-decimal-to-binary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanaca

• 03:33

### Why No Polar Pineapples: Crash Course Kids #11.2

340 views / 0 likes - added

Plants are amazing. Really! Photosynthesis is an incredible thing. But it also means that some plants can't live everywhere. They need to get the right amount of sunlight for the right amount of time. In this episode of Crash Course Kids, Sabrina chats ab

• 06:17

### Solving Percent Problems | Decimals | Pre-Algebra | Khan Academy

281 views / 0 likes - added

We'll use algebra to solve this percent problem. Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/percent-word-probs-pre-alg/v/solving-percent-problems-2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the

• 11:09

### Top 10 Maps That Will Change The Way You See The World

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From politics to pop culture to history, maps can teach us exactly what people think and thought. Prepare to be amazed by these top 10 maps that will change how you see the world. Subscribe for more! ► https://goo.gl/pgcoq1 ◄ Stay updated ► https://goo.gl

• 05:12

### History through the eyes of a chicken - Chris A. Kniesly

143 views / 0 likes - added

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/history-through-the-eyes-of-a-chicken-chris-a-kniesly The Ancient Egyptian king Thutmose III described the chicken as a marvelous foreign bird that “giv

• 03:33

### Land And Water: Crash Course Kids #16.1

472 views / 0 likes - added

Remember Sol, the closest star to Earth? We like to call it The Sun and we haven't talked about it in a little while. One interesting thing about the energy we get from the sun is that it's not absorbed the same way by different materials. In fact, even a

• 03:09

### Simplifying Square Roots | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

373 views / 0 likes - added

• 02:41

### Ai Weiwei: Life Cycle

81 views / 0 likes - added

Ai Weiwei (b. 1957 in Beijing; lives and works in Berlin) is widely recognized around the globe for his conceptual installations that catalyze dialogue between the contemporary world and traditional Chinese modes of thought and production. The prolific ar

• 09:36

### Negative Numbers Introduction | Negative Numbers And Absolute Value | Pre-Algebra | Khan Academy

262 views / 0 likes - added

Mysterious negative numbers! What ARE they? They are numbers less than zero. If you understand the nature of below zero temperatures, you can understand negative numbers. We'll help. Practice this lesson yourself on KhanAcademy.org right now: https://www.

• 12:49

### Scientific Notation Examples | Pre-Algebra | Khan Academy

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• 09:16

312 views / 0 likes - added

• 05:20

### Order Of Operations: PEMDAS | Arithmetic Properties | Pre-Algebra | Khan Academy

265 views / 0 likes - added

Work through another challenging order of operations example with only positive numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/order-of-operations/order_of_operations/e/order_of_operations

• 03:21

### Introduction To Perimeter | Measurement | Pre-Algebra | Khan Academy

226 views / 0 likes - added

Find perimeter by adding side-lengths of various figures. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/measurement/perimeter/e/perimeter_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Wa

• 02:05

### Think You're 'Double-Jointed'? You're Not. Here's What's Actually Going On

175 views / 0 likes - added

Having joint hypermobility might be a fun party trick, but do you know what it does to your body? Why Do We Get Goosebumps? - https://youtu.be/JHJhgDOySC0 Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Why Are Some People Double

• 05:51

### Equivalent Fractions | Fractions | Pre-Algebra | Khan Academy

308 views / 0 likes - added

Introduces the concept of equivalent fractions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/equivalent-fractions-pre-alg/e/equivalent_fractions?utm_source=YT&utm_medium=Desc&utm

• 03:36

### Approximating Irrational Number Exercise Example | Pre-Algebra | Khan Academy

263 views / 0 likes - added

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/order-of-operations/rational-irrational-numbers/e/approximating-irrational-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex

• 03:53

### Plotting Basic Fractions On The Number Line | Fractions | Pre-Algebra | Khan Academy

334 views / 0 likes - added

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/understanding-fractions-pre-alg/e/fractions_on_the_number_line_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex

• 09:50

### Adding And Subtracting Fractions | Fractions | Pre-Algebra | Khan Academy

398 views / 1 likes - added

• 02:07

### Percentage Of A Whole Number | Decimals | Pre-Algebra | Khan Academy

209 views / 0 likes - added

We hope you're beginning to see that there's more than one way to skin a cat. In other words, there are several different ways to solve problems involving percentages, decimals, and fractions. Watch as find the percentage of a whole number. Watch the next

• 04:51

### Cube Root Of A Non-perfect Cube | Pre-Algebra | Khan Academy

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• 01:11

### Subtracting Decimals: Example 1 | Decimals | Pre-Algebra | Khan Academy

267 views / 0 likes - added

Subtracting decimals...up to the hundredths placement. Line up those decimals before you start. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/adding-decimals-pre-alg/e/subtracting

• 05:34

### Multiplying Positive And Negative Numbers | Pre-Algebra | Khan Academy

251 views / 0 likes - added

Learn some rules of thumb for multiplying positive and negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/absolute-value/mult_div_negatives/e/multiplying_and_dividing_negative_numbers?

• 04:33

### Multiplying Negative And Positive Fractions | Fractions | Pre-Algebra | Khan Academy

302 views / 0 likes - added

See examples of multiplying and dividing fractions with negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/multiplying-fractions-pre-alg/e/multiplying_fractions?utm_

• 06:29

### Multiplying Decimals: Place Value And Reordering | Decimals | Pre-Algebra | Khan Academy

320 views / 0 likes - added

We want you to develop an intuition about how to work with decimals. Understanding how you can rewrite decimals by considering the place value will help you multiply! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/

• 09:43

### Exponent Rules Part 1 | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

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• 02:04

### Ratio Word Problem: Boys To Girls | Pre-Algebra | Khan Academy

256 views / 0 likes - added

In this example, we are given a ratio and then asked to apply that ratio to solve a problem. No problem! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/rat

• 02:39

### Comparing Decimals: Ordering From Least To Greatest | Decimals | Pre-Algebra | Khan Academy

300 views / 0 likes - added

This is a fun example where we reorder decimals from smallest to largest. You're looking for the place value that is the most significant, and then working backwards. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/

• 03:50

### Introduction To Multiplying Decimals | Decimals | Pre-Algebra | Khan Academy

311 views / 0 likes - added

Multiplying decimals can be confusing because there's always the question as to where the decimals goes in the answer. We're about to show you so you'll never have to question it again! Practice this lesson yourself on KhanAcademy.org right now: https://w

• 20:48

### Introduction To Scientific Notation | Pre-Algebra | Khan Academy

331 views / 0 likes - added

Introduction to scientific notation. An in-depth discussion about why and how scientific notation is used. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/scientific-notation/e/sc

• 03:38

### Math Patterns Example 1 | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

263 views / 0 likes - added

Part of our exploration of math is learning to identify patterns among numbers. Can you see the pattern in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/math-patterns?utm_source=YT&utm_mediu

• 08:13

### Prime Numbers | Factors And Multiples | Pre-Algebra | Khan Academy

282 views / 0 likes - added

What does it mean to be a prime number? Let's progress though some whole numbers and ask ourselves if they meet the criteria. What is the criteria you ask? Watch. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math

• 03:03

### Introduction To Exponents | Pre-Algebra | Khan Academy

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Taking an exponent is basically the act of repeated multiplication. You know how to multiply, right? If so, understanding exponents is completely within your grasp! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/ma

• 05:41

### Math Patterns Example 2 | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

274 views / 0 likes - added

We continue to strengthen our skill in identifying patterns. This time we'll use a table to track the pattern. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/math-patterns?utm_source=YT&utm_medium=Desc&utm

• 04:00

### Finding Factors And Multiples | Factors And Multiples | Pre-Algebra | Khan Academy

374 views / 0 likes - added

To find the factors of a number means to find all the whole numbers that the number in question is divisible by. Can you help us find the factors in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math

• 14:13

### Introduction To Ratios | Ratios, Proportions, Units, And Rates | Pre-Algebra | Khan Academy

361 views / 0 likes - added

What a ratio is. Simple ratio problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/ratio_word_problems?utm_source=YT&utm_medium=Desc&utm_campaign=PreAl

• 09:45

332 views / 1 likes - added

• 09:23

### Converting Fractions To Decimals | Decimals | Pre-Algebra | Khan Academy

328 views / 1 likes - added

How to express a fraction as a decimal Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/decimal-to-fraction-pre-alg/e/converting_fractions_to_decimals?utm_source=YT&utm_medium=Desc&u

• 04:20

### Dividing A Whole Number By A Decimal | Decimals | Pre-Algebra | Khan Academy

302 views / 1 likes - added

When dividing a whole number by a decimal, you're going to need to change that decimal into a whole number. How? We'll show you. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/divi

• 04:17

### Introduction To Area And Unit Squares | Measurement | Pre-Algebra | Khan Academy

236 views / 0 likes - added

Cover figures with square units to find their area. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/measurement/area-basics/e/measuring-area-with-unit-squares?utm_source=YT&utm_medium=Desc&utm_campa

• 07:14

### Negative Exponents | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

315 views / 0 likes - added

How does a negative exponent affect our answer? Before you assume that the answer must be negative, think again! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/negative-exponents

• 09:29

### Dividing Decimals With Hundredths Example 3 | Decimals | Pre-Algebra | Khan Academy

288 views / 0 likes - added

The old saying is "practice makes perfect." Let's keep practicing dividing decimals and making our divisor a whole number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dividing-d

• 09:15

### Mixed Numbers And Improper Fractions | Fractions | Pre-Algebra | Khan Academy

313 views / 0 likes - added

Converting mixed numbers to improper fractions and improper fractions to mixed numbers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/mixed-numbers-pre-alg/e/converting_mixed_numb

• 02:28

### The Real Reason Birds Fly In A V-Formation

354 views / 0 likes - added

Have you seen birds flying in a V formation and wondered why they do that? Yeah, so have we. And it turns out, the reason is super cool. How Can Birds Sleep While They're Flying? - https://youtu.be/Z4wUhh_xgSQ Sign Up For The Seeker Newsletter Here - http

• 05:42

### Understanding Division Of Fractions | Fractions | Pre-Algebra | Khan Academy

283 views / 0 likes - added

Using a number line, we'll explain the rule of "invert and multiply" when dividing two fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/div-fractions-fractions-pre-alg/e/

• 01:34

### Solving Ratio Problems With Graph | Pre-Algebra | Khan Academy

288 views / 0 likes - added

In this example we'll plot points on the x and y axis to reflect the given ratios. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/solving-ratio-problems-wi

• 00:52

### Reading Bar Charts: Basic Example | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

255 views / 0 likes - added

Let's start with this bar chart that brings back the days of Harry Potter! Putting our toes in the water on this one... Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/

• 03:28

### Inequality Word Problems | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

325 views / 0 likes - added

We're writing inequalities by using information from the word problems. Woohoo! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/greater-than-less-than/e/writing-numeric

• 02:35

### Dividing Whole Numbers And Fractions: Studying | Fractions | Pre-Algebra | Khan Academy

318 views / 0 likes - added

Solve a word problem by dividing a fraction by a whole number. The example used in this video is 1/5 ÷ 4. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/dividing-fractions-pre-alg

• 06:56

### Exponents And Powers Of Zero Patterns | Pre-Algebra | Khan Academy

291 views / 0 likes - added

Now that we understand how to interpret an exponent and how the patterns in zeros are related to the exponent, we can solve more complicated problems! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra

• 03:33

### Finding A Percentage | Decimals | Pre-Algebra | Khan Academy

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Once again, fractions are our friends as we use them to find a percentage. You'll also see a couple of different ways to arrive at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimal

• 03:08

### Multiplying Unit Fractions And Whole Numbers | Fractions | Pre-Algebra | Khan Academy

322 views / 1 likes - added

Don't let multiplying whole numbers and fractions get you down. We got this. This explanation will help you become a pro. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/multiplyin

• 04:25

### Multiplying Challenging Decimals | Decimals | Pre-Algebra | Khan Academy

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Sometimes multiplying really small decimals (with all those zeros!) can be a little intimidating. Watch as we show you a handy trick to simplify these problems and solve them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanaca

• 05:05

### Solving Ratio Problems With Tables Example 1 | Pre-Algebra | Khan Academy

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We're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/r

• 06:14

### How To Plot Inequalities On A Number Line | Pre-Algebra | Khan Academy

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Learn how to graph an inequality on a number line to indicate which values make it true. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/greater-than-less-than/e/writin

• 06:20

### Greatest Common Factor Explained | Factors And Multiples | Pre-Algebra | Khan Academy

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Here's a nice explanation of least common factor (or least common divisor) along with a few practice example exercises. Let's roll. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/factors-multiples/

• 04:16

### Least Common Multiple Exercise | Factors And Multiples | Pre-Algebra | Khan Academy

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We're practicing finding the least common multiple in these example exercises. We'll teach you the prime factorization approach which is a pretty nifty way to find the lcm (least common multiple). Practice this lesson yourself on KhanAcademy.org right now

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