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• 14:15

### 2003 AIME II Problem 4 (part 1)

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2003 AIME II Problem 4 (part 1) More free lessons at: http://www.khanacademy.org/video?v=gXnHodHNusg

• 06:08

### 2003 AIME II Problem 1

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2003 AIME II Problem 1 More free lessons at: http://www.khanacademy.org/video?v=JPQ8cfOsYxo

• 02:58

### 2003 AIME II Problem 3

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2003 AIME II Problem 3 More free lessons at: http://www.khanacademy.org/video?v=JU67TL2L1CA

• 02:27

### 2003 AIME II Problem 5 Minor Correction

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2003 AIME II Problem 5 Minor Correction More free lessons at: http://www.khanacademy.org/video?v=yXg5CYuCcU4

• 11:54

### 2003 AIME II Problem 15 (part 1)

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Finding the sum of the absolute value of the imaginary parts of the square of the roots of a crazy polynomial More free lessons at: http://www.khanacademy.org/video?v=2eLAEMRrR7Q

• 11:33

### 2003 AIME II Problem 15 (part 2)

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Finding the sum of the absolute value of the imaginary parts of the square of the roots of a crazy polynomial More free lessons at: http://www.khanacademy.org/video?v=TljVBB7gxbE

• 09:32

### 2003 AIME II Problem 15 (part 3)

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Finding the sum of the absolute value of the imaginary parts of the square of the roots of a crazy polynomial More free lessons at: http://www.khanacademy.org/video?v=JTpXK2mENH4

• 08:14

### 2003 AIME II Problem 5

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Volume of a wedge cut from a cylindrical log More free lessons at: http://www.khanacademy.org/video?v=EzE53aPGbrQ

• 17:42

### 2003 AIME II Problem 6

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Finding area of a skewed star More free lessons at: http://www.khanacademy.org/video?v=l9j26EOvTYc

• 12:08

### 2003 AIME II Problem 8

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Sequence from the product of 2 arithmetic sequences More free lessons at: http://www.khanacademy.org/video?v=ZFN63oTeYzc

• 09:56

### 2003 AIME II Problem 9

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Sum of polynomial evaluated at roots of another polynomial More free lessons at: http://www.khanacademy.org/video?v=ZSESJ8TeGSI

• 09:36

### 2003 AIME II Problem 12

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Minimum members in a committee More free lessons at: http://www.khanacademy.org/video?v=KD46pC_KFWk

• 16:13

### 2003 AIME II Problem 13

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Probability of moving to a vertex More free lessons at: http://www.khanacademy.org/video?v=vKMNRcctwL4

• 13:25

### 2003 AIME II Problem 10

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perfect squares integers square root More free lessons at: http://www.khanacademy.org/video?v=Hh3iY4tdkGI

• 16:36

### 2003 AIME II Problem 11.avi

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A little trigonometry to figure out the area of a triangle More free lessons at: http://www.khanacademy.org/video?v=smtrrefmC40

• 18:18

### 2003 AIME II Problem 14

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Trigonometry and geometry to find the area of an equilateral (but not regular) hexagon More free lessons at: http://www.khanacademy.org/video?v=Ec-BKdC8vOo

• 09:33

### 2-dimensional momentum problem (part 2)

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We finish the 2-dimensional momentum problem More free lessons at: http://www.khanacademy.org/video?v=leudxqivIJI

• 07:37

### Why This Problem is IMPOSSIBLE for Computers to Solve (The Halting Problem)

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Start learning today with SkillShare: https://skl.sh/upandatom2 The quantum computer game I talked about: https://phys.cam/game/ Alan Turing proved that the Halting Problem was impossible for Turing machines (computers) to solve. Come find out how. Hi! I'

• 05:49

### Your Sneakers Are Part of the Plastic Problem | National Geographic

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• 03:31

### Nina Dobrev Takes Selfies With Phones From 2003 to 2014 | WIRED

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In xXx: Return of Xander Cage, The Vampire Diaries star Nina Dobrev plays tech geek Becky Clearidge. So, who better to take us through the history of selfies? Using phones like the infamous Nokia brick and the modern iPhone, Nina tries her best to snap he

• 01:31

### Houston's 'We Have a Problem' Problem

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The often misquoted line from Apollo 13 astronauts--"Houston, we've had a problem"--comes up a lot in everyday life, and that annoys a lot of Houstonians. Photo: NASA Don’t miss a WSJ video, subscribe here: http://bit.ly/14Q81Xy More from the Wall Street

• 02:08

### Subtraction / Subtracting Integers - Word Problem

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Subtraction / Subtracting Integers - Word Problem. Here I look at a little word problem dealing with adding and subtracting integers.

• 05:04

### Area of a Triangle - Fun challenging math problem

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Can you solve the area of a triangle given points X and Y. This is not a basic problem, but it is a fun and challenging math problem. See if you are smart enough to find the area of a triangle for yourself. My name is Chris and my passion is to teach math

• 12:00

### A Problem You'll Never Solve

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Watch my newest video, "The Game You Win By Losing (Parrondo's Paradox)": https://youtu.be/PpvboBJEozMCuriosity Box: https://www.curiositybox.comMrBeasts \$1,000,000 Dilemma: https://youtu.be/NkYCWqzBc7MNewcombs Paradox has confounded philosophers, mathema

• 05:11

### The Mind Body Problem

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The Mind-Body problem is one of the greatest conundrums of philosophy and of our everyday lives too. FURTHER READING “The so-called Mind-Body problem is one of the greatest and most quietly painful conundrums in philosophy – and more importantly, in every

• 07:25

### Algebra Word Problem - Factoring

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Learn how to solve this algebra word problem by factoring. A garden has an area of 84 square feet and the length is 8 feet longer than the width. You must find the dimensions of the garden using factoring. My name is Chris and my passion is to teach math.

• 19:20

### Limiting Reactant Example Problem 1

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Limiting Reactant Example Problem 1

• 05:38

### Algebra word problem - System of Equations

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Solve this fun algebra word problem using a system of equations. If each jar has three cookies, one jar will be empty. If each jar has two cookies, there will be one cookie left over. Use a system of equations to find how many cookies and jars we have. My

• 04:09

### Easy algebra word problem - But can you solve it?

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Two workers can build a house in 4 days. One worker can build the house by himself in 6 days. How long would it take the other worker to build the house by himself? Can you solve this easy algebra word problem? My name is Chris and my passion is to teach

• 18:53

### Stoichiometry Example Problem 2

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Stoichiometry Example Problem 2 More free lessons at: http://www.khanacademy.org/video?v=eQf_EAYGo-k

• 05:07

### Check your intuition: The birthday problem - David Knuffke

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View full lesson: http://ed.ted.com/lessons/check-your-intuition-the-birthday-problem-david-knuffke Imagine a group of people. How big do you think the group would have to be before there’s more than a 50% chance that two people in the group have the same

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• 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

• 05:03 Popular

### Systems Word Problem With No Solution

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Systems word problem with no solution

• 04:35

### Surface area word problem example

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Surface area word problem example

• 11:06

### Word Problem Solving 3

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Word problem solving strategies from chapter 3 of ck12.org Algebra I book

• 03:24

### Radical Equation Application Problem

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u16_l3_t1_we3 Radical Equation Application Problem

• 09:50 Popular

### Can You Solve This 6th Grade Geometry Problem From China?

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What is the total area of the red spots? The diagram involves a rectangle with dimensions of 10 and 20. Inside the rectangle one of its diagonals is connected. There are two circles of equal size that are tangent to each other and the rectangle. The video

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• 10:05

### Word Problem Solving 4

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Word Problem Solving 4 More free lessons at: http://www.khanacademy.org/video?v=5EdbPz1ZVn0

• 05:09

### Subtraction Word Problem

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u01_l2_t2_we3 Subtraction Word Problem Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 07:31

### Rate Problem Involving Rational Equations

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u15_l2_t1_we3 Rate Problem Involving Rational Equations

• 03:35

### Another Take on the Rate Problem

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u15_l2_t1_we3 Another Take on the Rate Problem More free lessons at: http://www.khanacademy.org/video?v=hAy_bavEVCQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 05:47

### Imaginary Numbers Are Real [Part 1: Introduction]

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More information and resources: http://www.welchlabs.com Imaginary numbers are not some wild invention, they are the deep and natural result of extending our number system. Imaginary numbers are all about the discovery of numbers existing not in one dimen

• 05:24

### Math Challenge - Shrinking Pool Problem

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Think you can solve this math challenge? Every time a boy jumps into the pool it shrinks by a certain amount. Thy boy jumps into the pool 3 times. You must find the original length of the pool My name is Chris and my passion is to teach math. Learning sho

• 03:40

### Defining A Problem: Crash Course Kids #18.1

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So, how do engineers even figure out what problem needs to get fixed? And what's the difference between identifying a problem and just complaining about something. In this episode of Crash Course Kids, Sabrina talks about how we can all be better Engineer

• 08:16

### Three Equation Application Problem

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u14_l3_t1_we3 Three Equation Application Problem More free lessons at: http://www.khanacademy.org/video?v=TJaHNxJk5-4 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 05:22

### Application problem with graph

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u13_l1_t2_we4 Application problem with graph More free lessons at: http://www.khanacademy.org/video?v=ljROszF_rqs Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 08:02

### Algebraic Word Problem

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U02_L1_T3_we1 : Algebraic Word Problem More free lessons at: http://www.khanacademy.org/video?v=cNlwi6lUCEM Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 04:08

### Basic Rate Problem

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U03_L2_T3_we2 : Basic Rate Problem More free lessons at: http://www.khanacademy.org/video?v=7WXijfIZh64 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 09:07

### The Square-Sum Problem - Numberphile

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Matt Parker discusses a problem involving Square Sums. Go deeper with extra footage: https://youtu.be/7_ph5djCCnM More links & stuff in full description below ↓↓↓ More Matt Parker on Numberphile: http://bit.ly/Matt_Videos Matt's projects and other stuff:

• 01:06

### Roundhay Garden Scene (1888) - World's Oldest Surviving Film - Louis Aime Augustin Le Prince

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The earliest celluloid film was shot by Louise Le Prince using the Le Prince single-lens camera made in 1888. It was taken in the garden of the Whitley family house in Oakwood Grange Road, Roundhay, a suburb of Leeds, Yorkshire, Great Britain, possibly on

• 04:07

### 2-dimensional projectile motion part 5

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The second part of the last projectile motion problem

• 10:05

### Work/Energy problem with Friction

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A conservation of energy problem where all of the energy is not conserved. More free lessons at: http://www.khanacademy.org/video?v=YvacYWgygaA

• 05:19

### Graphical Systems Application Problem

443 views / 0 likes - added

u14_l1_t1_we5 Graphical Systems Application Problem More free lessons at: http://www.khanacademy.org/video?v=3mimxluSVBo Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 05:53

### Application Problem with Quadratic Formula

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u16_l5_t2_we5 Application Problem with Quadratic Formula More free lessons at: http://www.khanacademy.org/video?v=OZtqz_xw0SQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 08:22

### Applications Problem Factoring Quadratics

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u12_l3_t1_we3 Applications Problem Factoring Quadratics More free lessons at: http://www.khanacademy.org/video?v=STcsaKuW-24 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 03:39

### Multiplying Fractions Word Problem

441 views / 0 likes - added

U02_L2_T1_we4 Multiplying Fractions Word Problem More free lessons at: http://www.khanacademy.org/video?v=YJgIGwTysk0 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 02:08

### Dividing Fractions Word Problem

374 views / 0 likes - added

U02_L2_T3_we5 Dividing Fractions Word Problem More free lessons at: http://www.khanacademy.org/video?v=PQsgXNggV7Q Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 02:19

### Subtracting Decimals Word Problem

327 views / 0 likes - added

U03_L2_T1_we3 Subtracting Decimals Word Problem More free lessons at: http://www.khanacademy.org/video?v=hy_bDS3aHO4 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 07:22

### Word Problem Solving- Exponential Growth and Decay

430 views / 0 likes - added

Word Problem Solving- Exponential Growth and Decay More free lessons at: http://www.khanacademy.org/video?v=m5Tf6vgoJtQ

• 15:04

### The Easiest Problem Everyone Gets Wrong

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Watch my newest video, "Could a Toothpaste Sandwich Brush Your Teeth?": https://youtu.be/OdeiWhETqQYWe know how difficult the Monty Hall Problem is for so many people even after theyre shown all the math behind the best possible strategy. Its basic probab

• 05:20

### Fluids (part 11)

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Clarification of the problem in part 10 More free lessons at: http://www.khanacademy.org/video?v=HnfBFeLunk4

• 03:22

### Adding Mixed Numbers Word Problem

527 views / 0 likes - added

U02_L3_T1_we5 Adding Mixed Numbers Word Problem More free lessons at: http://www.khanacademy.org/video?v=o0arqcKC7QE Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 04:41

### Subtracting Mixed Numbers Word Problem

477 views / 0 likes - added

U02_L3_T2_we4 Subtracting Mixed Numbers Word Problem More free lessons at: http://www.khanacademy.org/video?v=tj9oLZYA-AQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 09:18

### The Centrifuge Problem - Numberphile

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More videos with Dr Holly Krieger: http://bit.ly/HollyKrieger More links & stuff in full description below ↓↓↓ Dr Holly Krieger is based at Murray Edwards College, University of Cambridge. Want some chemistry videos? Brady does those too: https://www.yout

• 04:30

### Calculus Limits - Easy Problem and Introduction

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Learning Calculus limits is a breeze with this problem and introduction. This example is an easy problem. Check out my Calculus limits playlist if you want some harder examples. I also offer live tutoring if you need any extra help. Check out my website i

• 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)

557 views / 0 likes - added

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

• 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

• 03:35

### Can You Solve the Haunted Hopscotch Problem? | NUMBER CRUSHERS

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Can You Solve the Haunted Hopscotch Problem? Grab your chalk and rocks because Number Wunderkid Izzy has challenged you to solve this spooky problem. Will Jon wake up before the Zombie strikes? Will Gary sink into quicksand before his friend can save him?

• 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)

579 views / 0 likes - added

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

• 04:33

### My Lovely Problem

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This is just a short update video that talks about the problem I am facing right now with my lovely world. It will be deleted in the future. My let's talk - https://youtu.be/mr0Lo6sPsy8 Report bugs here - https://bugs.mojang.com/secure/Dashboard.jspa Give

• 13:15

### The Problem Newton Got Wrong

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Watch my newest video, "Could a Toothpaste Sandwich Brush Your Teeth?": https://youtu.be/OdeiWhETqQYGo to https://buyraycon.com/vsauce2 for 15% off your order!Brought to you by Raycon.Isaac Newton was right about everything from gravity to the calculus, b

• 07:45

### The Monty Hall Problem - Christmas Lectures with Ian Stewart

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Ian Stewart explains the Monty Hall problem and its solution. Subscribe for regular science videos: http://bit.ly/RiSubscRibe The Monty Hall problem became infamous in the 1990s where newspaper columnist and puzzle solver Marilyn vos Savant offered a solu

• 02:35

### London has a toxic air pollution problem. One solution was born in the 1950s | WIRED

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London is in the midst of an air pollution crisis, but it’s not a new problem. The Great Smog of 1952 caused the deaths of 12,000 people in just four days. Back then, as London choked on chimney fumes, one project had an innovative solution. Subscribe to

• 10:09

### Fluids (part 9)

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Second part of the Bernoulli's Equation proof. Beginning of a problem that uses the equation. More free lessons at: http://www.khanacademy.org/video?v=QX2YLR09Q78

• 10:45

### IIT JEE Circle Hyperbola Common Tangent Part 2

524 views / 0 likes - added

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

• 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

• 08:05 Popular

### Can You Solve The Hardest Easy Geometry Problem?

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In the figure, what is the value of angle x? This problem is known as Langley's Adventitious Angles. It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is notoriously difficult to work out. Can you

• 02:01

### Beaker Ball Balance Problem

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Acrylic Ball: http://bit.ly/BBBacrylic Ping-Pong Ball: http://bit.ly/BBBpingpong Balanced: http://bit.ly/BBBbalanced This problem has made the rounds on the internet but I felt it deserved a treatment like this. Special thanks to Gary and the Department o

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• 05:31

### Newtons three-body problem explained - Fabio Pacucci

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Download a free audiobook version of "The Three-Body Problem" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed --In 2009, researchers ran a simple experiment. They took everything we know about our solar system and calculated where e

• 02:04

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

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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

• 07:55

### Hands-Free Snacking | What's Your Problem?

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Rashid has a problem, he can't eat and play video games at the same time. We're building a machine that will feed him without him needing his hands!What's Your Problem? is a new series in which Joseph and his team solve other people's really annoying prob

• 09:23

### Food waste is the world's dumbest problem

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Eat your peas! It’s the easiest way to fight climate change. This is the fourth episode of Climate Lab, a six-part series produced by the University of California in partnership with Vox. Hosted by Emmy-nominated conservation scientist Dr. M. Sanjayan, th

• 05:57 Popular

### Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

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This problem was given to Primary 6 (age 11-12) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad

• 07:40

### The Sun Blocker | What's Your Problem?

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AJ finds it annoying that he can't reach his own back when applying sunscreen, so Joseph and his team make a machine to do it automatically. What's Your Problem? is a new series in which Joseph and his team solve really annoying problems by making hilario

• 05:07

### Jessi Has a Problem!

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Do you like using your imagination to build things that solve problems? If you do, you're thinking like an engineer! Learn how engineers identify and solve problems, then help Jessi with a big problem of her own! ---------- Love SciShow Kids and want to h

• 16:51

### Euclid's Big Problem - Numberphile

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Trisecting angles and calculating cube roots was a big problem for Euclid and his cohorts. Discussed by Zsuzsanna Dancso at MSRI. TRISECT WITH ORIGAMI: http://youtu.be/SL2lYcggGpc CIRCLE THE SQUARE: http://youtu.be/CMP9a2J4Bqw NUMBERPHILE Website: http://

• 04:39

### How The Königsberg Bridge Problem Changed Mathematics - Dan Van Der Vieren

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View full lesson: http://ed.ted.com/lessons/how-the-konigsberg-bridge-problem-changed-mathematics-dan-van-der-vieren You’d have a hard time finding the medieval city Königsberg on any modern maps, but one particular quirk in its geography has made it one

• 07:04

### The 8 Queen Problem - Numberphile

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Our thanks to lynda.com - use our link: http://www.lynda.com/numberphile Dr James Grime discusses a famous chess problem - placing eight queens "safely" on a chess board. Some extra footage from this video will appear on Numberphile2 next Monday... https:

• 13:58

### The Josephus Problem - Numberphile

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The Josephus Problem, featuring Daniel Erman from University of Wisconsin-Madison. Winning at Dots and Boxes: https://youtu.be/KboGyIilP6k NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Number

• 16:24

### The most important unsolved problem in all of math. The Riemann Hypothesis.

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The Riemann hypothesis is the most notorious unsolved problem in all of mathematics. Ever since it was first proposed by Bernhard Riemann in 1859, the conjecture has maintained the status of the "Holy Grail" of mathematics. In fact, the person who solves

• 07:01

### Apollo 13: Houston, Weve Had a Problem

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“Houston, we've had a problem” is the now famous phrase radioed from Apollo 13 to Mission Control upon the catastrophic explosion that dramatically changed the mission. On the 50th Anniversary of the Apollo 13 mission, we recognize the triumph

• 13:54

### Kakeya's Needle Problem - Numberphile

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The famed Kakeya Needle Problem, discussed by Charles Fefferman from Princeton University. Edit and animation by Pete McPartlan Film and interview by Brady Haran 17-gon: https://youtu.be/87uo2TPrsl8 NUMBERPHILE Website: http://www.numberphile.com/ Numberp

• 04:30

546 views / 0 likes - added

"If Sue runs around the track twice, and John runs around the track four times more than Sue, how many times does John run around the track?" This problem was given to 3rd graders. A parent disagreed with the answer the teacher was marking. After it was p

• 08:30

### The big problem with how we pick juries

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A legal loophole makes juries less diverse. Subscribe to our channel! http://goo.gl/0bsAjO Four years after the shooting death of Laquan McDonald, the police officer, Jason Van Dyke, faced his day in court. But in a trial where race became central to the

• 10:44

### The Napkin Ring Problem

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• 05:25

### How to Tidy Your Room in 10 Seconds | What's Your Problem?

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We are making a machine to instantly tidy your room.What's Your Problem? is a new series in which Joseph and his team solve other people's really annoying problems by making hilarious contraptions out of everyday household objects. Welcome to my channel!

• 11:16

### The Santa Catcher Machine | What's Your Problem

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We are making a machine to catch Santa Claus! What's Your Problem? is a series in which Joseph and his team solve other people's really annoying problems by making hilarious contraptions out of everyday household objects. Welcome to my channel! I am an in

• 08:18

### SAT Prep: Test 1 Section 6 Part 6

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A little more on problem 17 and problem 18 on page 412.

• 22:57

### Pulley Physics Problem - Finding Acceleration and Tension Force

26 views / 0 likes - added

This physics video tutorial explains how to calculate the acceleration of a pulley system with two masses with and without kinetic friction. It also discusses how determine the tension in the rope as well. The formulas and equations are all provided in th

• 03:28 Popular

### Flower Math Problem - Adults Stumped By Question For Kids In China

709 views / 2 likes - added

This problem is said to come from a test given to a Chinese kindergarten class (5 year olds). It was posted online and caused a lot of debate as adults were stumped about the correct answer, some saying it is impossible. Can you figure it out? This video

• 05:54

### Ham Sandwich Problem - Numberphile

271 views / 0 likes - added

This video features Dr Hannah Fry (more links below) ↓↓↓ Check out Brilliant.org: https://brilliant.org/numberphile (20% off premium subscription) That circle cutting problem on Brilliant: https://brilliant.org/NumberphileSandwich Hannah Fry on Twitter: h

• 04:54

### The problem in Good Will Hunting - Numberphile

259 views / 0 likes - added

We now have a Tumblr: Tumblr: http://numberphile.tumblr.com This paper on ebay: http://www.ebay.co.uk/itm/221197137799? More links & stuff in full description below ↓↓↓ Just how hard was the second problem cracked by Will in Good Will H

• 11:34

### That Viral Math Problem (Cheryl's Birthday) - Numberphile

528 views / 0 likes - added

Simon Pampena gives his take on THAT viral math problem from Singapore. EXTRA FOOTAGE for this video: http://youtu.be/Mj-YngjjpJg Simon on Twitter: https://twitter.com/mathemaniac NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: h

• 08:29

### The Uncracked Problem With 33 - Numberphile

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33 is the lowest unsolved problem in the world of "summing three cubes". But 30 was also a tough nut to crack! Featuring Tim Browning from the University of Bristol. Taxi Cab Numbers: https://youtu.be/LzjaDKVC4iY Fermat's Last Theorem: https://youtu.be/qi

• 01:09

### Clarence | Someone Else's Problem | Cartoon Network

319 views / 0 likes - added

Clarence and Sumo dig a tunnel and discover some life-changing news from the episode, "Sumo Goes West." CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/1jq0JYj About Clarence: With his friends Sumo and Jeff, Clar

• 07:08

### Early Train Word Problem | Linear Equations | Algebra I | Khan Academy

522 views / 0 likes - added

Fun word problem that is almost a brain teaser. Watch the next lesson: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/More-equation-practice/v/patterns-in-sequences-1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

• 03:47

### Sesame Street: The Pizza Problem with Julia and her family

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Pizza night becomes a pizza problem when Waiter Grover can't remember Julia and her family's pizza order. Julia's dad helps find fun ways to pass the time until Grover finally gets it right!--Subscribe to the Sesame Street Channel here: http://www.youtube

• 03:09

### Can You Solve The Marriage Logic Problem? 80% Fail

422 views / 0 likes - added

Surveys have found 80 percent get this logic problem wrong. Alice is looking at Bob, and Bob is looking at Charlie. Alice is married; Charlie is not. Is a married person looking at an unmarried person? Answer choices are A) Yes, B) No, and C) Cannot be de

• 02:07

### Adventure Time | I'm Just Your Problem | Cartoon Network

437 views / 0 likes - added

Marceline sings about her anger with Princess Bubblegum! CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/CNAdventureTime About Adventure Time: Unlikely heroes Finn (a silly kid with an awesome hat) & Jake (a bras

• 21:38

### Kings Quest - Chapter 1 - A Wheel Problem (2)

391 views / 0 likes - added

Part 3 - https://youtu.be/PKVNDsWL8rw Welcome to my lets play on Kings Quest: A Knight To Remember. In this series I will be playing through the entire first chapter with commentary. Enjoy. Find out more about the game - http://www.sierra.com/kingsquest T

• 06:22

### There's a Big Problem With Silicon. What's Next?

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Silicon transistors allowed computers to shrink from the size of houses to watches in a short time, but engineers are facing a problem: we've almost hit the limit on how small silicon transistors can get.Hosted by: Olivia GordonSciShow has a spinoff podca

• 04:22 Popular

### Impossible Algebra Problem

868 views / 0 likes - added

This problem is making the rounds. Can you place numbers in the four boxes so all the equations are true? Blog post (text/image explanation): http://wp.me/p6aMk-4up If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecis

• 09:09

### The Illumination Problem - Numberphile

381 views / 0 likes - added

Featuring Professor Howard Masur from the University of Chicago. Filmed at the Mathematical Sciences Research Institute (MSRI). Part 2 of this interview: https://youtu.be/AGX0cLbHaog Patreon: http://www.patreon.com/numberphile Numberphile is supported by

• 02:51 Popular

### The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

951 views / 1 likes - added

A lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:

• 22:18

### Minecraft Xbox - The Lost Sword - Problem Solving {11}

667 views / 2 likes - added

Part 12 - https://youtu.be/s1v04a5Hem0 Welcome to a new adventure map. In this series I will be playing through the entire map with Ballistic Squid. Enjoy. Map builder - https://www.youtube.com/channel/UC30RRHqxlSh-_wbZJz1QYog Map download - coming soon.

• 02:01

### The Problem With Charlie I We Bare Bears I Cartoon Network

575 views / 1 likes - added

You know that one annoying friend who just can't get the hint? That's Charlie, and he's Bigfoot. The Bears meet him when Charlie signs up on a home-sharing website to spend a weekend with the Bears. Charlie is the worst possible house guest for the Bears

• 02:57 Popular

### Viral Facebook Math Problem

738 views / 1 likes - added

This problem has over 2 million comments on Facebook and is getting coverage in mainstream media and blogs. Can you figure out this Facebook fruit algebra puzzle involving apples, bananas, and coconuts? The video presents what many people consider to be t

• 12:31

### Can You Guess Who's Lying? 3 Logic Riddles to Train Your Problem Solving Skills

359 views / 0 likes - added

Get better at problem solving today with Brilliant! The first 200 people to sign up will get a 20% discount: https://brilliant.org/upandatom Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and computer science videos every two weeks! *SUBSCRI

• 06:30

### The problem with the U.S. bail system - Camilo Ramirez

79 views / 0 likes - added

Explore the U.S. bail systems reliance on cash bail and how it disproportionately hurts people in low-income communities and communities of color.--Since 2000, the annual number of people convicted of crimes in the United States has stayed steady, but the

• 02:49

### Percent Word Problem Example 2 | Decimals | Pre-Algebra | Khan Academy

421 views / 0 likes - added

It's nice to practice conversion problems, but how about applying our new knowledge of percentages to a real life problem like recycling? Hint: don't forget your long division! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanac

• 05:02

### How to Tell Matter From Antimatter | CP Violation & The Ozma Problem

148 views / 0 likes - added

This video was made with the support of the Heising Simons Foundation.Support MinutePhysics on Patreon! http://www.patreon.com/minutephysicsLink to Patreon Supporters: http://www.minutephysics.com/supporters/This video is about the Ozma problem of disting

• 03:16

### KIDZ BOP Kids - Problem (KIDZ BOP 27)

487 views / 2 likes - added

KIDZ BOP Kids - "Problem" from the all new album, KIDZ BOP 27! iTunes: http://bit.ly/kb27itunesyt Amazon Music: http://bit.ly/kb27amazonyt Spotify: http://bit.ly/kbspotify Walmart: http://bit.ly/kb27walmartfb Google Play: http://bit.ly/fbookgplay

• 02:07

### SAT Prep: Test 2 Section 3 Part 6

401 views / 0 likes - added

Problem 20 on page 464

• 02:35

### SAT Prep: Test 4 Section 8 Part 4

399 views / 0 likes - added

Problem 16 on page 615

• 09:35

### SAT Prep: Test 5 Section 3 Part 3

431 views / 0 likes - added

More on problem 8 on page 654 and 9-11.

• 05:06

### SAT Prep: Test 5 Section 3 Part 6

411 views / 0 likes - added

Problem 18 on page 657

• 05:32

### SAT Prep: Test 6 Section 7 Part 6

433 views / 0 likes - added

Problem 20 on page 738

• 01:45

### SAT Prep: Test 3 Section 4 Part 5

426 views / 0 likes - added

The leftover of problem 18 on page 535

• 04:02

### SAT Prep: Test 7 Section 5 Part 5

435 views / 0 likes - added

The rest of problem 20 on page 796

• 03:16

### Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

443 views / 0 likes - added

What is angle A in the star-shaped figure? This problem appeared on the 1999 AMC 8 test (intended for 8th grade students in the US). Approximately 75% of test-takers did not mark the correct response. Can you figure it out? Watch the video for a solution.

• 08:02

### Thermodynamics (part 5)

251 views / 0 likes - added

Example problem involving PV=nRT More free lessons at: http://www.khanacademy.org/video?v=UekR9J31a2o

• 03:21

### Rational Number Word Problem With Fractions | Pre-Algebra | Khan Academy

495 views / 0 likes - added

Word problems force us to put concepts to work using real-world applications. In this example, determine the volume of frozen water and express the answer as a fraction. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.o

• 10:11

### Centripetal Acceleration (part 2)

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More intuition on centripetal acceleration. A simple orbit problem.

• 09:06

### 2 dimensional projectile motion part 4

266 views / 0 likes - added

Another example of a 2-dimensional projectile motion problem

• 01:25

### SAT Prep: Test 2 Section 6 Part 4

415 views / 0 likes - added

A redo of problem 14 on page 475 because I can't do arithmetic

• 10:18

### Thermodynamics (part 2)

259 views / 0 likes - added

Example problem that pv=pv. Introduction to temperature. More free lessons at: http://www.khanacademy.org/video?v=x34OTtDE5q8

• 07:07

### Circuits (part 4)

292 views / 0 likes - added

A hairy resistance problem More free lessons at: http://www.khanacademy.org/video?v=3NcIK0s3IwU

• 13:07

### Singapore Math: Grade 3a Unit 2 (part 2)

331 views / 0 likes - added

Word problem with cookies

• 10:19

### Tension (part 2)

269 views / 0 likes - added

A slightly more difficult tension problem. More free lessons at: http://www.khanacademy.org/video?v=zwDJ1wVr7Is

• 05:39

### Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

536 views / 0 likes - added

Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou

• 05:01

### Can you spot the problem with these headlines? (Level 1) - Jeff Leek & Lucy McGowan

229 views / 0 likes - added

Puzzle through a set of hypothetical health studies and headlines and see if you can spot whats misleading about the headline.--In medicine, theres often a disconnect between news headlines and the scientific research they cover. While headlines are desig

• 03:40

### Multi-step Word Problem With Decimals And Subtraction | Pre-Algebra | Khan Academy

499 views / 0 likes - added

First visualize this word problem then use subtraction and multiplication of decimals and fractions to get at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topi

• 10:25

### Thermodynamics (part 3)

271 views / 0 likes - added

Introduction to Kelvin. Example of a problem involving the ideal gas law More free lessons at: http://www.khanacademy.org/video?v=HvYUKRMT0VI

• 07:46

### The problem with banning TikTok

170 views / 0 likes - added

TikToks in trouble. But so is the internet as we know it.Join the Open Sourced Reporting Network: http://www.vox.com/opensourcednetworkSubscribe to our channel! http://goo.gl/0bsAjOOn August 6, President Trump issued an executive order prohibiting transac

• 03:48

### Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

580 views / 0 likes - added

The Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for \$216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch

• 04:13

### Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle

470 views / 0 likes - added

A marshmallow has the shape of a cylinder with diameter 5 and height 3. A dessert is made with 24 marshmallows: there are two stacked layers of marshmallows, and each layer has 3 rows of 4 marshmallows. The gaps between the marshmallows are filled with ch

• 10:10

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

523 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

• 01:30

### Robotic Ray Is Part Animal, Part Machine

434 views / 0 likes - added

Light-controlled cardiac muscle cells guide swimming of an artificial animal. Learn more: http://scim.ag/29rkDCn Read the research: http://scim.ag/29lax1u JOIN AAAS: http://scim.ag/2bxrxnH

• 05:17

### Unikitty! | Dr. Fox's Incredible Inventions - Part 2 | Cartoon Network UK

205 views / 0 likes - added

▶︎Check out Part 1 here: https://youtu.be/c8A_O-KdFIo As Dr. Fox says, "Science must continue". So, here it is the 2nd part of her incredible inventions!

• 06:16

### IIT JEE Circle Hyperbola Common Tangent Part 1

564 views / 0 likes - added

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

• 10:35

### Static Electricity Demonstrations Part one Induction // Homemade Science with Bruce Yeany

543 views / 0 likes - added

Part One: Several examples of static electricity are shown in this first part with a concentration on explaining the basis of inducing a static change on insulators verses conductors. Note on the falling powder demonstration: This was something that I dis

• 02:57

### Historical Voices of Famous People - Part 2

134 views / 0 likes - added

Historicical voices of famous people part two Watch part one https://www.youtube.com/watch?v=3e5NY7V9bcs

• 13:35

### Stoichiometry Example Problem 1

417 views / 0 likes - added

Figuring grams of reactants and product produced from reaction of phosphorous and chlorine More free lessons at: http://www.khanacademy.org/video?v=jFv6k2OV7IU

• 03:19

### The Problem With Pandas

579 views / 6 likes - added

What's black and white, big and fuzzy, and likes to eat bamboo all day? A panda! Join us to learn all about this rare bears and the challenges they face as their habitat disappears. This video uses "NACTA-6.wav" by Freesound user xserra: http://freesound.

• 03:18

### The Problem With Concrete

207 views / 0 likes - added

This video is in partnership with Bill and Melinda Gates. You can check out the Gates Annual Letter here: https://b-gat.es/2GxIwba Concrete is responsible for 8% of humanity’s carbon emissions because making its key ingredient - cement - chemically releas

• 04:04

### The Big Problem With The Drugs You Take

258 views / 0 likes - added

Who makes sure the drugs you take are safe, and can you trust them? TAKE THIS SURVEY! (sponsored link): http://bit.ly/LifeNoggin Subscribe: https://bit.ly/SubLifeNoggin | Get your exclusive Life Noggin merch: http://keeponthinking.co Support Life Noggin o

• 09:28

### The Martingale Problem

179 views / 0 likes - added

Watch my newest video, "The Game You Win By Losing (Parrondo's Paradox)": https://youtu.be/PpvboBJEozMCheck out and purchase Vector by Anki: https://go.anki.com/2Q55UOSThanks to Anki for sponsoring this video and supporting Vsauce2.*** LINKS ***The Diffic

• 08:26

### The Two Generals Problem

240 views / 0 likes - added

Time to tell a story about idempotency, computer science, and the Night of the Multiple Orders. Sponsored by Dashlane try 30 days for free at: https://www.dashlane.com/tomscottMORE BASICS: https://www.youtube.com/playlist?list=PL96C35uN7xGLLeET0dOWaKHkAlP

• 04:50

### The Fundamentals Of Space-time: Part 2 - Andrew Pontzen And Tom Whyntie

362 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-2-andrew-pontzen-and-tom-whyntie View part 1 here: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie View part 3 here: http://ed.t

• 12:10

### Static Electricity part two Conduction-Induction // Homemade Science with Bruce Yeany

445 views / 0 likes - added

Part two: Static electricity charging by induction and conduction are compared through a variety of demonstrations. This is a part of a series of experiments that can be used in a classroom setting students of all ages.

• 10:27

### How Do We Protect Earth From Asteroids? Part 1 - Finding Them

567 views / 0 likes - added

We know we live in a cosmic shooting gallery. Who’s got their eyes on the sky, and how will we prevent an asteroid strike if we find a dangerous space rock? Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/

• 17:17

### How to survive Minecraft (Part II)

227 views / 1 likes - added

Part 2 to how to survive minecraft •Part 1: https://youtu.be/ICaPgiBYq_o •Get the map: http://bit.ly/28O6fCk •on Twit:http://www.twitter.com/truemu •on FB:http://www.facebook.com/minecraftuniverse -TrueMU Store: US:http://bit.ly/TrueMUshirts UK:http://bit

• 05:06

### The Fundamentals Of Space-time: Part 1 - Andrew Pontzen And Tom Whyntie

497 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie View part 2: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-2-andrew-pontzen-and-tom-whyntie View part 3 here: http://ed.ted.co

• 05:09 Popular

### Alice Through The Looking Glass - Part 1 | Story Time With Ms. Booksy At Cool School

734 views / 3 likes - added

Ms Booksy's adventures with Alice continue in a whole new world - through the looking glass - where everything is backwards! Watch Looking Glass Pt 2 here: https://www.youtube.com/watch?v=2uUOvDUBf5c Watch Alice in Wonderland Part 8: http://bit.ly/1o3QM5Q

• 09:56

### Challenging Perimeter Problem

377 views / 0 likes - added

Perimeter of rectangle covered by 9 non-overlapping squares. From 200) American Invitational Math Exam More free lessons at: http://www.khanacademy.org/video?v=1uWZNW5PF-s

• 06:41

### Another mass composition problem

315 views / 0 likes - added

Another exercise converting a mass composition to an empirical formula. More free lessons at: http://www.khanacademy.org/video?v=sXOIIEZh6qg

• 11:23

### Chilling Water Problem

492 views / 0 likes - added

How much ice at -10 degrees C is necessary to get 500g of water down to 0 degrees C? More free lessons at: http://www.khanacademy.org/video?v=lsXcKgjg8Hs

• 14:28

### Sampling Distribution Example Problem

348 views / 0 likes - added

Figuring out the probability of running out of water on a camping trip More free lessons at: http://www.khanacademy.org/video?v=0ZstEh_8bYc

• 13:17

### Birthday Probability Problem

606 views / 0 likes - added

The probability that at least 2 people in a room of 30 share the same birthday. More free lessons at: http://www.khanacademy.org/video?v=9G0w61pZPig

• 10:36

### 2-dimensional momentum problem

300 views / 0 likes - added

An example of conservation of momentum in two dimensions. More free lessons at: http://www.khanacademy.org/video?v=CFygKiTB-4A

• 05:15

### The Small Problem With Shrinking Ourselves

535 views / 0 likes - added

It’s okay to be… small? Tweet this video ⇒ http://bit.ly/OKTBSshrunk Share on FB ⇒ http://bit.ly/OKTBSshrunkFB ↓ More info and sources below ↓ Want more shrunken YouTubers? Check out this video on Vsauce3 about the science of Ant-Man! https://www.youtube.

Featured
• 10:50

### China's Geography Problem

511 views / 0 likes - added

Animation by Josh Sherrington (https://www.youtube.com/heliosphere) Sound by Graham Haerther (http://www.Haerther.net) Thumbnail by Joe Cieplinski (http://joecieplinski.com/) This video was partially inspired by a chapter in Tim Marshall's "Prisoners of G

• 11:09

### The Nuclear Waste Problem

263 views / 0 likes - added

Get smart with Brilliant for 20% off by being one of the first 500 people to sign up at http://brilliant.org/wendover Subscribe to Half as Interesting (The other channel from Wendover Productions): https://www.youtube.com/halfasinteresting Check out my po

• 11:22

### The Problem with 7825 - Numberphile

211 views / 0 likes - added

Signup for your free trial to The Great Courses Plus here: http://ow.ly/b5wA30hIviV (sponsor) More links & stuff in full description below ↓↓↓ James Grime on a proof involving Pythagorean Triples. James Grime: http://singingbanana.com (book him for a talk

• 11:54

### Russia's Geography Problem

397 views / 0 likes - added

Get 15 free days of knowing your data is safe by using this link with Backblaze: http://backblaze.com/wendover “What if Russia Never Existed” by AlternateHistoryHub: https://youtu.be/gU6UBXOHhDw “What if the Soviet Union Reunited” by RealLifeLore: https:/

• 06:01

### The Big Problem With Interstellar Travel

245 views / 0 likes - added

Start learning intuitively with Brilliant for 20% off by being of the first 200 people to sign up at http://brilliant.org/RealLifeLore/ Get RealLifeLore T-shirts here: http://standard.tv/reallifelore Please Subscribe: http://bit.ly/2dB7VTO Animations cour

• 04:16

### The Big Problem With The North Pole

226 views / 1 likes - added

There's something not quite right with the North Pole.... Santa Claus Voiced by Sam Bashor‬ https://www.youtube.com/channel/UCnhFudM67-ycGVx8P9Ss37A Watch more: Why Do You Get Sick When It's Cold? - Dear Blocko #9 ►►https://www.youtube.com/watch?v=1mt5nvW

• 14:01

### The Monty Hall Problem

144 views / 0 likes - added

Join the Curiosity Box and get my favorite smart things (many of which are original Vsauce inventions!) sent right to your door four times a year: https://www.curiositybox.com Kevin's paradox video: https://www.youtube.com/watch?v=kJzSzGbfc0k Send me Stuf

• 05:23

### Why Overpopulation Isnt the Problem You Think It Is

32 views / 0 likes - added

Around 390,000 new humans are born every day. So, on a planet with dwindling resources and an increasing strain on natural systems is curbing our booming population the key to solving our environmental woes? Subscribe to Seeker! http://bit.ly/subscribesee

• 04:29

### The Problem With Life Expectancy

40 views / 0 likes - added

Go to https://bit.ly/noom_minuteearth and take your free 30-second quiz! Thank you #noom for sponsoring todays video!In order to truly understand differences among animal lifespans, we need to stop thinking about a specific number and start thinking about

• 05:09

### Alice Through The Looking Glass - Part 2 | Story Time With Ms. Booksy At Cool School

693 views / 3 likes - added

Things get even more backwards in Through the Looking Glass as Alice meets talking flowers, living chess pieces, and the mysterious Red Queen! Watch Looking Glass Pt 1 here: https://www.youtube.com/watch?v=ccxlVq9PiuA Watch Alice in Wonderland Part 8: htt

• 08:15

### My Dog Has a Puppy Sleepover | Part 2

174 views / 2 likes - added

My Dog Has a Puppy Sleepover | Part 2Part 2 is here with more Tucker and Pearl shenanigans. They played their little hearts out and Tucker was exhausted, only to be surprised by his wife Journee!!!What was your favorite part?TUCKER MERCH IS HERE!!!https:/

• 06:26

### WHAT CAN YOU CUT WITH PAPER? - Part 2

446 views / 0 likes - added

How to make paper disk: https://youtu.be/eLXHLRa37_g?t=19s Subscribe: http://www.youtube.com/c/MisterHacker What can you cut with paper? - Part 2 Part 1: http://www.youtube.com/watch?v=eLXHLRa37_g Music: 1 - And The Sky Shall Unfold 3 - Johannes Bornlцf 2

• 10:12

### Word Problem Solving Plan 1

335 views / 0 likes - added

• 12:52

### Word Problem Solving Strategies

399 views / 0 likes - added

• 12:20

### Problem Solving Word Problems 2

393 views / 0 likes - added

More free lessons at: http://www.khanacademy.org/video?v=s1QN7sSfBM8

• 05:23

### Basic Trigonometry - Word Problem #2

386 views / 0 likes - added

Learn basic trigonometry with this easy to follow example. I also provided the links for other basic trigonometry videos as well. Basic trigonometry quiz: https://www.youtube.com/watch?v=IGV1XufPd6E Basic Trigonometry Practice Question #1: https://www.you

• 04:21

### Basic Trigonometry - Word Problem

382 views / 0 likes - added

Learn basic trigonometry with this easy to follow example. I also provided the links for other basic trigonometry videos as well. Basic trigonometry quiz: https://www.youtube.com/watch?v=IGV1XufPd6E Basic Trigonometry Practice Question #1: https://www.you

• 05:12

### The Black Hole Death Problem

467 views / 0 likes - added

This episode is brought to you by Squarespace: ‪http://www.squarespace.com/physicsgirl Black holes are not as black as we once thought. They are theorized to die a slow death by evaporation, emitting energy known as Hawking radiation. But the mechanism fo

• 10:04

### The Problem Of Evil: Crash Course Philosophy #13

491 views / 0 likes - added

After weeks of exploring the existence of nature of god, today Hank explores one of the biggest problems in theism, and possibly the biggest philosophical question humanity faces: why is there evil? -- Images and video via VideoBlocks or Wikimedia Commons

• 07:52

### Proof That Computers Can't Do Everything (The Halting Problem)

309 views / 0 likes - added

If you disagree or get confused by this video, read this FAQ: http://www.zutopedia.com/halting_problem.html#faq Click here for a list of my other works: http://www.zutopedia.com/udia.html This video gives an informal presentation of Alan Turing's Halting

• 13:00

### The Moving Sofa Problem - Numberphile

367 views / 0 likes - added

Featuring Dan Romik from UC Davis. More footage from this interview soon on Numberphile2. Dan's comprehensive page on this topic: http://bit.ly/movingsofa Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRIN

• 03:44

### The Train Bird Problem: What's Your Approach?

431 views / 0 likes - added

The Rest Of Us on Patreon: https://www.patreon.com/TheRestOfUs The Rest Of Us on Twitter: http://twitter.com/TROUchannel The Rest Of Us T-Shirts and More: http://teespring.com/TheRestOfUsClothing

• 01:37

### Nature's Superheroes: The Pollution Problem

354 views / 2 likes - added

Increasing carbon dioxide in the atmosphere is causing the oceans to heat up. This is bad news for coral reefs and the animals that depend on them, such as animals with shells. Join Madeline, Charlie, and Ezra to learn about how pollution affects our envi

• 04:09

### The \$18 Million Problem Hiding Underground

207 views / 0 likes - added

This is one challenge that's costing cities millions of dollars each year.Go to http://expressvpn.com/lifenoggin to take back your Internet privacy TODAY and find out how you can get 3 months free. Subscribe: https://bit.ly/SubLifeNoggin | Get your exclus

• 04:03

### The Problem Solving Process with Zipline

221 views / 0 likes - added

Start learning at http://code.org/ Stay in touch with us! on Twitter https://twitter.com/codeorg on Facebook https://www.facebook.com/Code.org on Instagram https://instagram.com/codeorg on Tumblr https://blog.code.org on LinkedIn https://www.linkedin.com/

• 06:34

### The Reverse Spinning Basketball Problem

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Get the Blackview phone here: http://bit.ly/2KlZ3leIn this video I show you how it is possible for a basketball to reverse spin when it hits the ground. I talk about the physics of why a bouncy ball can reverse spin sometimes when it bounces on the ground

• 04:27

### Conservation's Latest Problem? Not Enough Hunters

112 views / 0 likes - added

No matter how you feel about hunting, it provides a lot of funding for state wildlife agencies. Now, fewer Americans are hunting, and that system is breaking down. The United States needs to find a new way to fund the preservation of America's wilderness.

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