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# Search Results: "Vector calculus"

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• 09:10

### Vector Dot Product and Vector Length

251 views / 0 likes - added

Definitions of the vector dot product and vector length More free lessons at: http://www.khanacademy.org/video?v=WNuIhXo39_k

• 1:10:07

### Khan Academy Live: AP Calculus

209 views / 0 likes - added

Taking AP Calculus? Prep for the exam with our free live tutoring session. Dave, one of our calculus experts, will review key concepts, solve sample questions, and share ways to avoid common mistakes. Prep for your AP Calculus exams on Khan Academy: https

• 1:27:26

### Calculus 1 Lecture 1.1: An Introduction to Limits

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Calculus 1 Lecture 1.1: An Introduction to Limits. Great intro video on Calculus.

• 04:39

### NOVA | Zombies and Calculus (Part 1) | PBS

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The zombie apocalypse is here, and calculus explains why we can't quite finish them off. NOVA Facebook: https://www.facebook.com/NOVAonline NOVA Twitter: https://www.twitter.com/novapbs PRODUCTION CREDITS Produced by Ari Daniel www.aridanielshapiro.com Fo

• 08:22

### Understanding Trends Through Calculus I The Great Courses

284 views / 0 likes - added

Change and Motion: Calculus Made Clear, 2nd Edition Try a free month trial of The Great Courses Plus here: https://www.thegreatcoursesplus.com/special-offer?utm_source=US_OnlineVideo&utm_medium=SocialMediaEditorialYouTube&utm_campaign=136256 The True Geni

• 05:59

### Combined Vector Operations Example

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Combined vector operations example

• 03:18

### Example Finding Components Of A Vector

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Example finding components of a vector

• 19:53

### Calculus at a Fifth Grade Level

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The foreign concepts of calculus often make it hard to jump right into learning it. If you ever wanted to dive into the world of mathematics - or if you are just having difficulty in your calculus class - and are having a hard time grasping the ideas, you

• 05:37

### Figuring Out Vector Initial Point

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Figuring out vector initial point

• 03:06

### Finding Vector Magnitude From Components

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Finding vector magnitude from components

• 10:16

### Vector Components From Magnitude And Direction

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Vector components from magnitude and direction

• 06:42

### More Examples Finding Vector Angles

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More examples finding vector angles

• 03:38

### Example Calcuating Magnitude Of Vector From Graph

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Example calcuating magnitude of vector from graph

• 05:49

### Example Of Vector Magnitude From Initial And Terminal Points

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Example of vector magnitude from initial and terminal points

• 06:21

### Vector Components From Initial And Terminal Points

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Vector components from initial and terminal points

• 14:19

### Vector Transformations

294 views / 0 likes - added

Introduction to the notion of vector transformations More free lessons at: http://www.khanacademy.org/video?v=gAbadNuQEjI

• 04:22

### Calculus Limits - Factoring Example

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Learning Calculus limits is a breeze with this tutorial and video example.. This example teaches you how to solve limits by factoring. Check out my Calculus limits playlist if you want some harder examples. I also offer live tutoring if you need any extra

• 21:10

### Matrix Vector Products

341 views / 0 likes - added

Defining and understanding what it means to take the product of a matrix and a vector More free lessons at: http://www.khanacademy.org/video?v=7Mo4S2wyMg4

• 09:54

### Unit Vector Notation

224 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

• 25:34

### Linear Algebra: Vector Examples

256 views / 0 likes - added

Visually understanding basic vector operations More free lessons at: http://www.khanacademy.org/video?v=r4bH66vYjss

• 04:30

### Calculus Limits - Easy Problem and Introduction

303 views / 0 likes - added

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

• 09:58

### Normal vector from plane equation

323 views / 0 likes - added

Figuring out a normal vector to a plane from its equation More free lessons at: http://www.khanacademy.org/video?v=gw-4wltP5tY

• 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

• 17:04

### Matrix Vector Products as Linear Transformations

403 views / 0 likes - added

Matrix Vector Products as Linear Transformations More free lessons at: http://www.khanacademy.org/video?v=ondmopWLiEg

• 04:01

### Product rule - Calculus derivatives tutorial

182 views / 0 likes - added

Learn how to take the derivative of a function using the product rule. This complete calculus derivatives tutorial explains why and how to use the product rule. To see all my calculus videos check out my website http://MathMeeting.com My name is Chris and

• 14:20

### Matrices to solve a vector combination problem

257 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

• 17:32

### Linear Transformations as Matrix Vector Products

398 views / 0 likes - added

Showing how ANY linear transformation can be represented as a matrix vector product More free lessons at: http://www.khanacademy.org/video?v=PErhLkQcpZ8

• 12:07

### Linear Algebra: Transpose of a Vector

310 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

• 10:46

### Proving Vector Dot Product Properties

308 views / 0 likes - added

Proving the "associative", "distributive" and "commutative" properties for vector dot products. More free lessons at: http://www.khanacademy.org/video?v=rVQ3G9epCjw

• 16:41

### Expressing a Projection on to a line as a Matrix Vector prod

332 views / 0 likes - added

Expressing a Projection on to a line as a Matrix Vector prod More free lessons at: http://www.khanacademy.org/video?v=JK-8XNIoAkI

• 09:05

### Linear Alg: Projection is closest vector in subspace

353 views / 0 likes - added

Showing that the projection of x onto a subspace is the closest vector in the subspace to x More free lessons at: http://www.khanacademy.org/video?v=b269qpILOpk

• 13:53

### Defining a plane in R3 with a point and normal vector

365 views / 0 likes - added

Determining the equation for a plane in R3 using a point on the plane and a normal vector More free lessons at: http://www.khanacademy.org/video?v=UJxgcVaNTqY

• 09:13

### Unit Vector Notation (part 2)

265 views / 0 likes - added

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

• 06:51

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

423 views / 2 likes - added

• 15:43

### Calculus: Derivatives 1 (new HD version)

414 views / 0 likes - added

Calculus-Derivative: Understanding that the derivative is just the slope of a curve at a point (or the slope of the tangent line) More free lessons at: http://www.khanacademy.org/video?v=ANyVpMS3HL4

• 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

• 04:56

### Optional Calculus Proof to Show that MR has Twice Slope of Demand

241 views / 0 likes - added

Using some basic calculus to show that marginal revenue has twice the slope of the demand curve for a monopolist More free lessons at: http://www.khanacademy.org/video?v=atI4QH2acuw

• 12:22

### Exponential Decay Formula Proof (can skip, involves Calculus)

300 views / 0 likes - added

Showing that N(t)=Ne^(-kt) describes the amount of a radioactive substance we have at time T. For students with background in Calculus. Not necessary for intro chemistry class. More free lessons at: http://www.khanacademy.org/video?v=H7nrVDV8ahc

• 11:51

### Optimization - Calculus

303 views / 0 likes - added

Optimization is explained completely in this calculus video. I also provided the links for my other optimization videos as well. Optimization - "minimum sum of two numbers" example https://www.youtube.com/watch?v=WJy3EEJPV3g Optimization - "Maximum volume

• 02:33

### Integration By Parts - Calculus Practice Quiz

322 views / 0 likes - added

Learn integration by parts with this fun interactive calculus quiz. I also provided the solutions to every question. Solution #1: https://www.youtube.com/watch?v=01ZAriWg97I Solution #2: https://www.youtube.com/watch?v=A_meH96b-i8 Solution #3: https://www

• 09:46

### Harmonic Motion Part 2 (calculus)

225 views / 0 likes - added

We test whether Acos(wt) can describe the motion of the mass on a spring by substituting into the differential equation F=-kx More free lessons at: http://www.khanacademy.org/video?v=xoUppFlif04

• 09:44

### Harmonic Motion Part 3 (no calculus)

226 views / 0 likes - added

Figuring out the period, frequency, and amplitude of the harmonic motion of a mass attached to a spring. More free lessons at: http://www.khanacademy.org/video?v=oqBHBO8cqLI

• 19:04

### Calculus -- The foundation of modern science

116 views / 0 likes - added

Easy to understand explanation of integrals and derivatives using 3D animations.

• 14:22

### Calculus proof of centripetal acceleration formula

284 views / 0 likes - added

Proving that a = v^2/r More free lessons at: http://www.khanacademy.org/video?v=XjCEumlJBno

• 09:51

### Electric Potential Energy (part 2-- involves calculus)

283 views / 0 likes - added

Electric potential energy difference in a varying field More free lessons at: http://www.khanacademy.org/video?v=CqsYCIjSm9A

• 07:34

### Vector Forces

119 views / 0 likes - added

Easy to understand 3D animations explaining force vectors.

• 01:44

### Math Whizzes Of Ancient Babylon Figured Out Forerunner Of Calculus

249 views / 0 likes - added

Clay tablets document precocious astronomical calculations by 50 B.C.E. Read more: http://scim.ag/1nRxu3V Read the research (\$): http://scim.ag/1PVEVgT

• 14:25

### Vector Triple Product Expansion (very optional)

432 views / 0 likes - added

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

275 views / 0 likes - added

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

• 09:47

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

238 views / 0 likes - added

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

• 27:01

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

321 views / 0 likes - added

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

• 11:16

### Gyroscopic Precession and Gyroscopes

102 views / 0 likes - added

How the angular momentum vector is affected by torque, and why this results in gyroscopic precession and for the operation of gyroscopes used for navigation.

• 04:47

### The Case for Hovercars

179 views / 0 likes - added

Mathematically, they've got a lot going for them. Last week's video on the calculus of bad driving: https://www.youtube.com/watch?v=pI62ANEGK6Q NOTE: Leibniz independently discovered/invented calculus. Liebnitz is my imaginary slope friend.

• 10:33

### The dot product

191 views / 0 likes - added

Introduction to the vector dot product. More free lessons at: http://www.khanacademy.org/video?v=KDHuWxy53uM

• 13:46

### Total Displacement for Projectile

166 views / 0 likes - added

Reconstructing the total displacement vector for a projectile More free lessons at: http://www.khanacademy.org/video?v=UXORCpvKYiI

• 07:58

### Unit Vectors and Engineering Notation

229 views / 0 likes - added

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

• 14:37

### Introduction to Projections

318 views / 0 likes - added

Determining the projection of a vector on s line More free lessons at: http://www.khanacademy.org/video?v=27vT-NWuw0M

• 04:28

### Product rule - Logarithm derivatives example

184 views / 0 likes - added

Learn calculus with this product rule Derivative example with logarithms and exponential functions. This complete calculus derivatives tutorial explains why and how to use the product rule. To see all my calculus videos check out my website http://MathMee

• 25:33

### Divergence and Curl

105 views / 0 likes - added

Visualization of the Divergence and Curl of a vector field. My Patreon Page: https://www.patreon.com/EugeneK

• 07:32

### I Tried To Make A Pie With Zero Waste

106 views / 0 likes - added

"This apple is very slippery..." Check us out on Facebook! - facebook.com/buzzfeedtasty Credits: https://www.buzzfeed.com/bfmp/videos/56057 MUSIC SFX Provided By AudioBlocks (https://www.audioblocks.com) A Night In Rio Licensed via Warner Chappell Product

• 05:15

### Why You Can't Really Sweat Out Toxins

55 views / 0 likes - added

This video is brought to you by the Child and Teen Checkups program of the Minnesota Department of Health. If you live in Minnesota, learn more at http://Freechildcheckups.com. If you live somewhere else in the United States go to https://www.medicaid.gov

• 10:26

### IIT JEE Perpendicular Planes (Part 1)

417 views / 0 likes - added

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)

336 views / 0 likes - added

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

• 10:18

### Projectile Motion with Ordered Set Notation

259 views / 0 likes - added

Solving the second part to the projectile motion problem (with wind gust) using ordered set vector notation More free lessons at: http://www.khanacademy.org/video?v=jl_gQ-eL3xo

• 09:31

### Why is Friday the 13th Considered Unlucky?

150 views / 1 likes - added

Try TunnelBear: http://tunnelbear.com/brainfood If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS and t

• 04:02

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

259 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

• 07:15

### Product Rule for derivatives: Visualized with 3D animations

130 views / 0 likes - added

Visual representation of the product rule for derivatives in Calculus.

• 02:59

### Proof that 1 = 2.

170 views / 0 likes - added

Using algebra and a little deception, Mr. John Hush proves (or does he?) that 1 = 2 to a class of amazed calculus students.

• 09:07

### Newton Leibniz And Usain Bolt

273 views / 0 likes - added

Why we study differential calculus More free lessons at: http://www.khanacademy.org/video?v=EKvHQc3QEow

• 07:12

### The Great Emu War of 1932

235 views / 0 likes - added

→FREE BOOK FROM AUDIBLE: http://audible.com/brainfood →Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7h

• 07:13

### How the Sun Burns Your Skin (and How Sunscreen Prevents This)

270 views / 0 likes - added

If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS and the ever requested Simon Whistler whistling packa

• 10:04

### Introduction to Harmonic Motion

197 views / 0 likes - added

Intuition behind the motion of a mass on a spring (some calculus near the end). More free lessons at: http://www.khanacademy.org/video?v=Nk2q-_jkJVs

• 10:02

### Derivatives: Crash Course Physics #2

319 views / 0 likes - added

CALCULUS! Today we take our first steps into the language of Physics; mathematics. Every branch of science has its own way to describe the things that it investigates. And, with Physics, that's math. In this episode, Shini talks us through derivatives and

• 19:26

### Can These Chefs Turn This Elf Drawing Into Real Meals? Tasty

22 views / 0 likes - added

Tasty chef Alvin challenges guest chef Ellen Bennett to turn Merilees elf drawing into delicious real-world dishes. Whose present do you think shell prefer?Follow Alvin: https://www.instagram.com/alvinzhoupwns/Follow Ellen Bennett: https://www.instagram.c

• 02:59

100 views / 0 likes - added

There are claims floating around that chocolate might actually be good for you, and SciShow is here to help separate fact from fiction. Hosted by: Michael Aranda SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at https://www.scis

• 05:37

68 views / 0 likes - added

You may have heard about a study that found pigeons can visually recognize what printed words look like. Does that mean these birds can read? Interested in exploring at the marvelous natural world around us? Check out another Complexly production, Nature

• 03:49

### The Basics Of Digital Illustration

220 views / 1 likes - added

Have ever wondered how digital illustrations are made? This video explains the basics. Help us keep making videos by supporting us in https://www.patreon.com/MinuteEarth We try to leave jargon out of our videos, but if you want to learn more about this to

• 09:36

### Where Did the Expression The Big Cheese Come From?

181 views / 0 likes - added

-First 100 people to sign up will get three meals off their Blue Apron order free! Click here: http://cook.ba/2vgP9c4 -This video is sponsored by Blue Apron. If you happen to like our videos and have a few bucks to spare to support our efforts, check out

• 08:55

### Who Invented Spoons, Forks, and Knives?

280 views / 0 likes - added

→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the wate

• 02:30

### Can Gargling Salt Water Cure a Sore Throat?

75 views / 0 likes - added

Gargling with warm saltwater for a sore throat is a remedy commonly known and loved by doctors, and there is some evidence to back it up, but it’s not a cure. Hosted by: Olivia Gordon SciShow has a spinoff podcast! It's called SciShow Tangents. Check it o

• 17:38

### Recreating Asteroids with Lasers

176 views / 0 likes - added

Thanks to Seb Lee-Delisle for recreating the Asteroids vector graphics with his massive laser. Here’s his site: http://seb.ly/ Of course he’s on Github, where you can find out more about controlling lasers with computers: https://github.com/sebleedelisle/

• 03:48

### The Truth About Clothes Moths

163 views / 1 likes - added

If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS and the ever requested Simon Whistler whistling packa

• 10:06

### We Tried To Make Pizzas With Zero Waste

100 views / 0 likes - added

"Good night, dough babies." Subscribe to Goodful's YouTube channel: https://www.youtube.com/channel/UCEMArgthHuEtX-04qL_8puQ Vegan cheese recipe inspired by Minimalist Baker https://minimalistbaker.com/how-to-make-vegan-parmesan-cheese/ Follow Rie @thedes

• 04:50

### Why is Relativity Hard? | Special Relativity Chapter 1

157 views / 0 likes - added

Thanks to http://www.brilliant.org/minutephysics for supporting this video! Thanks to my friend Mark Rober (https://www.youtube.com/channel/UCY1kMZp36IQSyNx_9h4mpCg) for making the spacetime globe, and to Grant Sanderson (https://www.youtube.com/3blue1bro

• 09:34

### Why Don't Hot Dogs and Hot Dog Buns Come in Packs of Equal Number?

297 views / 0 likes - added

→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →Bakers Dozen video: https://www.youtube.com/watch?v=UPDV0POS5d0 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP

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• 07:45

### Paleo Got It Wrong: We've Loved Carbs for Over 100,000 Years | SciShow News

81 views / 0 likes - added

Go to http://Brilliant.org/SciShow to try out Brilliant’s Daily Challenges. The first 200 subscribers get 20% off an annual Premium subscription. If you’re on the “paleo diet,” you’ve probably been avoiding wheat and potatoes

• 06:13

### Rate constant k from half-life example | Knetics | Chemistry | Khan Academy

168 views / 0 likes - added

Example problem showing how to find the rate constant k from the half-life of a first order reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/copy-of-kinetics/v/second-order-reaction-with-calculus?utm_source=YT&u

• 09:25

### The bold plan to end malaria with a gene drive

171 views / 0 likes - added

How genetically engineered mosquitoes might defeat a disease that kills millions of children. Subscribe to our channel! http://goo.gl/0bsAjO The invention of the CRISPR gene editing tool has injected new life into a line of research called gene drive. Gen

• 08:27

### Math Tricks and the Joy of Math I The Great Courses

239 views / 0 likes - added

Try a free month trial of The Great Courses Plus and watch Joy of Mathematics here: https://www.thegreatcoursesplus.com/special-offer?utm_source=US_OnlineVideo&utm_medium=SocialMediaEditorialYouTube&utm_campaign=136229 Welcome to the Joy of Math. I'm Arth

• 04:39

### Lyme disease is spreading. Blame ticks — and climate change

251 views / 0 likes - added

Nature fanaTICKS beware; cases of Lyme disease are on the rise. Subscribe to our channel! http://goo.gl/0bsAjO Lyme disease is the most common vector-borne disease in the US; and climate change is helping it to spread even more. Animals such as deer, mice

• 05:53

### A.I. Reveals Autism-Linked Changes in "Junk" DNA | SciShow News

59 views / 0 likes - added

Scientists know that genetic factors can explain many of autisms features - but have autism researchers been looking for those features in the wrong DNA? A new study uses A.I. to uncover changes linked to autism in the stretches of non coding DNA.#scishow

• 04:38

### Why Do Nails on Your Fingers and Toes Grow at Different Rates?

213 views / 0 likes - added

If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS and the ever requested Simon Whistler whistling packa

• 04:56

### How to Learn to Code

372 views / 2 likes - added

Thanks to https://www.youtube.com/user/NerdyAndQuirky for the question! Shares appreciated! Twitters: https://twitter.com/cheerskevin There you go. Here’s the code that will get you past your first technical interview. By the way, don’t ever w

• 09:28

### The Martingale Problem

52 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

• 05:32

### Why Electronics Just Shouldn't Work

75 views / 0 likes - added

Every wire, memory chip, and radio link is constantly fending off data corruption with error detecting and correcting codes. With the help of these codes, electronics can keep up the illusion of perfection… most of the time. Hosted by: Stefan Chin SciShow

• 03:59

### Vectors and Scalars - Physics

172 views / 0 likes - added

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

• 11:54

### Fast Food Vs. Homemade: McDonald's Egg McMuffin

121 views / 0 likes - added

We're gonna see how ours "measures" up. Check us out on Facebook! - facebook.com/buzzfeedtasty Credits: https://www.buzzfeed.com/bfmp/videos/71834 MUSIC SFX Provided By AudioBlocks (https://www.audioblocks.com) Licensed via Audio Network STILLS cheddar sl

• 15:22

### Optimization - Maximum Volume Of Box

325 views / 0 likes - added

Optimization is explained completely in this calculus video. I also provided the links for my other optimization videos as well. Optimization - "minimum fence required" example https://www.youtube.com/watch?v=kV3K4Ppz6fw Optimization - "Minimum sum of two

• 05:45

### Visualization of Torques (Moments)

159 views / 0 likes - added

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

• 11:39

### Optimization - Maximum Profit

247 views / 0 likes - added

Optimization is explained completely in this calculus video. In this example we maximize profit using optimization. I also provided the links for my other optimization videos as well. Optimization - "minimum fence required" example https://www.youtube.com

• 10:45

### Optimization - Minimum Sum Of Two Numbers

265 views / 0 likes - added

Optimization is explained completely in this calculus video. I also provided the links for my other optimization videos as well. Optimization - "minimum fence required" example https://www.youtube.com/watch?v=kV3K4Ppz6fw Optimization - "Maximum volume of

• 18:57

### Optimization - Minimum Time To Cross River

310 views / 0 likes - added

Optimization is explained completely in this calculus video. In this example we maximize profit using optimization. I also provided the links for my other optimization videos as well. Optimization - "minimum fence required" example https://www.youtube.com

• 07:23

### Irregular Plural Nouns, Part II | The Parts Of Speech | Grammar | Khan Academy

252 views / 0 likes - added

The plural of "whale" is "whales", but what's the plural of "child"? David, Khan Academy's resident grammarian, explains. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower

• 02:56

### Why Is Lyme Disease Getting Worse?

40 views / 0 likes - added

Thanks to the University of Minnesota for sponsoring this video! https://twin-cities.umn.edu/Lyme disease is spreading like wildfire around the world: here's why.Thanks also to our Patreon patrons https://www.patreon.com/MinuteEarth and our YouTube member

• 02:34

### Irregular Plural Nouns, Part I | The Parts Of Speech | Grammar | Khan Academy

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The plural of "dog" is "dogs", but what is the plural of "leaf"? Khan Academy's resident grammarian explains. Watch the next lesson: https://youtu.be/n9poHOKkF28 About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a perso

• 04:35

### Introduction To Singular And Plural Nouns | The Parts Of Speech | Grammar | Khan Academy

453 views / 0 likes - added

David, Khan Academy's resident grammarian, introduces the difference between singular and plural nouns. Watch the next lesson: https://youtu.be/uYgcuyUF7JQ About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalize

• 09:49

### The Surprisingly Interesting Story Behind the Filet-O-Fish Sandwich

329 views / 1 likes - added

→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the wate

• 04:28

### Introduction To Nouns | The Parts Of Speech | Grammar | Khan Academy

290 views / 0 likes - added

David, Khan Academy's resident grammarian, introduces you to the most common English part of speech: the noun. Watch the next lesson: https://youtu.be/ETzngG8N3AU About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a pers

• 03:02

### Challenge: Can You Save Earth From A Killer Asteroid? | Space Time | PBS Digital Studios

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You are the planet's only hope! Solve the equation and save humanity. Find necessary information below. Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/p

• 05:20

### Overview Of Pixar In A Box

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To see the full curriculum, go to www.pixarinabox.org. Learn how Pixar filmmakers use science, technology, engineering, art, and math to create movie magic. Pixar in a Box is a collaboration between Khan Academy and Pixar Animation Studios, sponsored by D

• 06:47

### Noble gas configuration

184 views / 0 likes - added

How to write electron configurations for atoms and monatomic ions using noble gas configuration Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity

• 06:47

### Noble Gas Configuration | Electronic Structure Of Atoms | Chemistry | Khan Academy

327 views / 0 likes - added

How to write electron configurations for atoms and monatomic ions using noble gas configuration Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity

• 01:51

### Crossing The River - Brain Teaser

418 views / 0 likes - added

Try to solve this fun brain teaser. Cross the river with all of the zombies and humans. The boat can only fit two at a time. Also there can never be more zombies than humans. My name is Chris and my passion is to teach math. Learning should never be a str

• 03:10

### Don't Checkmate - Brain Teaser

356 views / 0 likes - added

Don't checkmate the black king. In this brain teaser you must find one move for white which will not result in immediate checkmate for the black king. I also have a bunch of other fun brain teasers as well. My name is Chris and my passion is to teach math

• 04:24

### Retroviruses: Microbial Supervillains

193 views / 0 likes - added

Forget your Hans Grubers, Lord Voldemorts, and Hannibal Lecters. It’s time to meet some real supervillains. They’re called retroviruses, and they actually change their host cell’s DNA. Hosted by: Michael Aranda ---------- Support SciShow by becoming a pat

• 05:44

### Pain-Killing Hunger and Superpowered Diabetic Fish

180 views / 0 likes - added

Check out Rene Ritchie's channel Vector: https://www.youtube.com/watch?v=UsDIHVWSUtg Animals that eat things are at the forefront of this week’s news, from mice with pain-killing hunger to fish with signs of diabetes. Hosted by: Stefan Chin Head to https:

• 07:45

### Introduction to chemistry

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A big picture intro to chemistry and why it is fascinating. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a fir

• 03:49

### Meet The Prepositions | Prepositions | The Parts Of Speech | Grammar

230 views / 1 likes - added

Prepositions help show us where things are in space and time. Practice this yourself on Khan Academy right now: http://www.khanacademy.org/the-preposition/e/meet-the-preposition Watch the next lesson: https://www.youtube.com/watch?v=96sojEZsKu8 The parts

• 06:52

### Introduction To Partial Pressure | Gases And Kinetic Molecular Theory | Chemistry | Khan Academy

374 views / 0 likes - added

Definition of partial pressure and Dalton's law of partial pressure. Example of calculating partial pressure of a gas in a mixture from the total pressure and partial pressure of the other gases in the mixture. Chemistry on Khan Academy: Did you know that

• 05:09

### Finding Units Of Rate Constant K

302 views / 0 likes - added

How to find the units for the rate constant k for a zero, first, or second order reaction. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. Thi

• 05:14

### Intensifiers And Adverbs Of Degree | Modifiers | The Parts Of Speech

240 views / 0 likes - added

Words like 'very' and 'slightly' are examples of intensifiers and adverbs of degree. Here's how they work! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-modifier/e/intensifiers-and-adver

• 02:04

### Guess The Diagonal - Brain Teaser

330 views / 0 likes - added

Try to solve this brain teaser in less than a minute. You must guess the diagonal inside of the circle. There is enough information given which allows you to find the length of the diagonal in less than a minute. My name is Chris and my passion is to teac

• 10:57

### BONUS: History of the possessive apostrophe | The Apostrophe | Punctuation | Khan Academy

234 views / 0 likes - added

David, Paige, and Jake cover the fascinating history of the possessive apostrophe. Stay tuned for this bonus video! Missed the previous lesson? Watch here: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/v/bonus-history-of-the-ap

• 03:34

### Introduction To Agreement | Verbs | The Parts Of Speech

202 views / 0 likes - added

When you match up the subject of a sentence with a verb, it's called 'agreement'. Here's how it works! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/intro-to-verb-agreement M

• 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

• 05:38

### Prepositional Phrases | Prepositions | The Parts Of Speech | Grammar

220 views / 0 likes - added

Prepositional phrases are word chunks that begin with a preposition. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-preposition/e/prepositional-phrases/ Missed the previous lesson? https://www.khanacademy.org/the-preposi

• 06:44

### BONUS VIDEO | Terminal Prepositions | Prepositions | The Parts Of Speech

211 views / 0 likes - added

It's totally okay to end sentences with prepositions! David, Khan Academy's grammarian-in-chief, explains the history and the context behind this long-held grammar myth. Missed the previous lesson? Watch here: https://www.khanacademy.org/humanities/gramma

• 07:37

### Introduction to reaction quotient Qc | Chemical equilibrium | Chemistry | Khan Academy

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Introduction to the reaction quotient Qc, and how to use the reaction quotient to predict how the reaction concentrations will change. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its

• 08:26

### Conjugate acid-base pairs | Acids and bases | Chemistry | Khan Academy

213 views / 0 likes - added

Introduction to conjugate acid-base pairs. Definition and examples of conjugate acid-base pairs. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivit

• 05:12

### Ellipses | Punctuation | Khan Academy

181 views / 0 likes - added

Ellipses are three little dots that we use to show a pause or that a portion of a quote has been removed. Learn how to use them in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/introd

• 04:18

### How to use italics and underlines | Punctuation | Khan Academy

203 views / 0 likes - added

Learn how to use italics and underlines when writing the titles of works or when emphasizing a particular word or phrase. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/italics--underlines--and-qu

• 03:22

### "The SCARIEST Costume" MLP Animatic Song

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Happy Nightmare Night (Season) Everyone! I'm super excited and proud to present you this original song whose instrumental was written and created by the ever talented Truesailorcomet, be sure and shower her with some love, she did an AMAZING job! Want a h

• 02:41

### Trick Question - True or False

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Think you can answer this simple trick question? Does .9 repeating equal 1? Find the solution in this video. My name is Chris and my passion is to teach math. Learning should never be a struggle which is why I make all my videos as simple and fun as possi

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• 06:12

### Hummingbirds Eating From My Mouth (In Slow Motion) - Smarter Every Day 124

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Free Audio Book ⇒ http://bit.ly/AudibleSED Tweet⇒http://bit.ly/BirdMustacheTWT FB⇒http://bit.ly/BirdStacheFB Official Comment Thread: http://bit.ly/15xwZD0 More info! ⇊ Click below for more links! ⇊ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ My Instagram account: http:

• 02:36

### Prepositions Of Neither Space Nor Time | Prepositions | The Parts Of Speech | Grammar

284 views / 0 likes - added

Some prepositions describe relationships between people or things. These prepositions don’t include information about time or space. Watch the next lesson: https://www.khanacademy.org/the-preposition/e/common-prepositions Missed the previous lesson? Watch

• 06:08

### Beginning sentences with conjunctions | The parts of speech | Grammar | Khan Academy

202 views / 0 likes - added

Is it okay to begin a sentence with a conjunction like "but" or "because"? Yes. David explains why. Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/v/correlative-conjunctions?utm_source=YT&utm_medium=D

• 04:50

### Introduction to the apostrophe | The Apostrophe | Punctuation | Khan Academy

258 views / 0 likes - added

David and Paige, KA’s resident grammarians, introduce a new piece of punctuation: the apostrophe! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-comma/e/introduction-to-the-apostrophe Watch the next lesson: https://www.k

• 07:18

### Why Does the Sun Make You Sneeze?

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Tunnel Bear for FREE: http://tunnelbear.com/brainfood If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS

• 11:23

### What Happens if You Accidentally Damage or Destroy a Priceless Work of Art in a Museum

251 views / 0 likes - added

Thanks to Skillshare for sponsoring this video! First 200 people will get a 2 month trial for free here: http://skl.sh/2xwnKCg If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've go

• 03:29

### Mind blowing brain teaser - Folding paper to the moon

358 views / 0 likes - added

Can you solve this mind blowing brain teaser? How many times can you fold a piece a paper before it reaches the moon? Find out the solution in this brain teaser in this video. My name is Chris and my passion is to teach math. Learning should never be a st

• 02:21

### Trick Question - Test your math skills

292 views / 0 likes - added

Find the maximum and minimum values of X in this trick question. Each value of X must satisfy the given inequality. Test your math skills and have fun with this trick question. My name is Chris and my passion is to teach math. Learning should never be a s

• 04:51

### Hyphens vs. dashes | Punctuation | Khan Academy

183 views / 0 likes - added

Hyphens and dashes look pretty similar, but their uses are very different! Learn when to use each one in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/dashes-and-hyphens Watch the nex

• 07:57

### Le Chatelier's principle: Worked example | Chemical equilibrium | Chemistry | Khan Academy

247 views / 0 likes - added

A worked example using Le Chatelier's principle to predict how concentrations will shift for different perturbations. Example includes changes in reaction vessel volume, changing amount of solid product, adding inert gas, and adding a catalyst. Chemistry

• 01:32

### Easy Puzzle - But can you solve it?

278 views / 0 likes - added

Solve this puzzle by cutting the piece of wood into two pieces. Both pieces must fit exactly into the hole. Can you solve this easy puzzle? Watch the video and find out. My name is Chris and my passion is to teach math. Learning should never be a struggle

• 15:16

### Planck's Constant and The Origin of Quantum Mechanics | Space Time | PBS Digital Studios

193 views / 0 likes - added

To check out any of the lectures available from Great Courses Plus go to http://ow.ly/K9mK301cRdj and get ready to learn about everything from cooking to calculus. Previous episode on Quantum Tunneling and the de Broglie Wavelength: https://www.youtube.co

• 07:48

### Introduction To The SAT Writing & Language Test | Tips & Planning | New SAT | Khan Academy

367 views / 0 likes - added

This is the last video in our New SAT subject! Missed the previous lesson? https://www.khanacademy.org/test-prep/new-sat/new-sat-tips-planning/new-sat-about-sat/v/sat-reading-test-intro?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT New SAT (starting M

• 06:20

### Dashes | Punctuation | Khan Academy

186 views / 0 likes - added

Dashes are like little actors—they can behave like colons, pairs of commas, or parentheses. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/introduction-to-the-

• 02:09

### Test your math IQ - Part 2

266 views / 0 likes - added

Test your math IQ with this fun question. There are ten green socks and 10 blue socks in a basket. You can not see a thing. How many socks would you need to take out of the basket to ensure you had a least a pair? My name is Chris and my passion is to tea

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• 03:02 Popular

### Can you solve the never ending square root?

1,162 views / 0 likes - added

This never ending square root can actually be solve using basic alegra. Find the exact value of this never square root. This problem is much easier than it looks. My name is Chris and my passion is to teach math. Learning should never be a struggle which

• 05:40

### BONUS: History of the apostrophe | The Apostrophe | Punctuation | Khan Academy

177 views / 0 likes - added

The apostrophe has a bizarre history, including being the name for something that's not really related to grammar at all. David, Paige, and special guest Jake explain. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-a

• 04:34

### What is a sentence? | Syntax | Khan Academy

165 views / 0 likes - added

A sentence is a grammatically complete idea. All sentences have a noun or pronoun component called the subject, and a verb part called the predicate. David and Paige explore this division across several different example sentences. Watch the next lesson:

• 07:50

### Compound Prepositions | Prepositions | The Parts Of Speech | Grammar

219 views / 0 likes - added

These prepositions are called compound prepositions, or multisyllabic prepositions. Like most prepositions, they have both literal and figurative meanings. David explains. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech

• 01:51

### Test your math IQ - Part 1

237 views / 0 likes - added

Test your math IQ with this fun question. There are two 12 sided coins. Find the measure of the angle when the coins are side by side. Each side of the coin is equal length. My name is Chris and my passion is to teach math. Learning should never be a stru

• 03:43

### BONUS: The Oxford comma | Punctuation | Grammar | Khan Academy

198 views / 0 likes - added

David and Paige tackle the great comma debate of our time: Oxford comma or no Oxford comma? Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/appositives-the-comma-punctuation-khan-academy?utm_source=YT&utm

• 05:16

### Prepositions Of Time | Prepositions | The Parts Of Speech | Grammar

225 views / 0 likes - added

• 05:10

### Prepositions Of Space | Prepositions | The Parts Of Speech | Grammar

238 views / 0 likes - added

Some prepositions help describe relationships between objects and their locations in space. David explains how! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-preposition/e/prepositions-about-time-and-space Watch the nex

• 04:55

### Solve the right triangle - Trigonometry Brain Teaser

475 views / 0 likes - added

A square is inside of a right triangle. The length of each side of the triangle is 3-4-5. Given this information what are the dimensions of the square? Can you solve this right triangle? My name is Chris and my passion is to teach math. Learning should ne

• 01:27

### The Easiest Brain Teaser that will rack your brain

426 views / 0 likes - added

This is the easiest brain teaser that will rack your brain. 5 people can build 5 houses in 5 days. How long will it take 100 people to build 100 houses? My name is Chris and my passion is to teach math. Learning should never be a struggle which is why I m

• 03:13

### Using quotation marks in titles | Punctuation | Khan Academy

159 views / 0 likes - added

Learn how to use quotation marks to title things like poems, songs, and episodes of TV shows. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/italics--underlines--and-quotes/ Watch the next lesson:

• 03:53

### What Is Zero? Getting Something From Nothing - With Hannah Fry

263 views / 1 likes - added

Is zero really a number? How did it come about? Hannah Fry tells the story of how zero went from nothing to something. Subscribe to our channel for weekly science lectures and short films: http://bit.ly/RiSubscRibe Help translate this film: http://www.you

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• 04:09

### Parentheses | Punctuation | Khan Academy

124 views / 0 likes - added

Parentheses set off extra information (such as a writer's remarks, an interruption, or a reference) from the rest of a sentence. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneo

• 02:52

### Three ways to end a sentence | Punctuation | Khan Academy

183 views / 0 likes - added

David and Paige, KA’s resident grammarians, introduce the three ways to end a sentence: the period, the exclamation point, and the question mark. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-comma/e/three-ways-to-end-a

• 01:07

### The Easiest Brain Teaser You Might Get Wrong

388 views / 3 likes - added

Try and solve the easiest brain teaser you might get wrong. The chicken costs \$1.00 more than the egg, and together they cost a total of \$1.06. How much does the egg cost? My name is Chris and my passion is to teach math. Learning should never be a strugg

• 04:33

### Can you solve Zeno's paradox? - Brain Teaser

371 views / 0 likes - added

Zeno's paradox is one of the most well know math puzzles in history. Is it possible to add an infinite amount of numbers and get an exact value? This is one example of Zeno's paradox. Try and solve this paradox and learn about the Greek philosopher Zeno i

• 02:46

### Introduction to Grammar | Grammar | Khan Academy

369 views / 0 likes - added

Khan Academy Grammarian David Rheinstrom welcomes you to his favorite topic: the study of language, its rules, and its conventions. By understanding English – by speaking it, by writing it, by reading this very sentence – you are a grammarian yourself! Wa

• 01:36

### Are you smart enough to solve this simple brain teaser?

343 views / 0 likes - added

This simple brain teaser is not so easy. A virus is doubling every singe day. On the 67th day the virus has reached its max population. When will the virus reach half of its max population. My name is Chris and my passion is to teach math. Learning should

• 07:23

### Some Elements can be Liquid and Solid at the Same Time | SciShow News

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Skillshare is offering SciShow viewers two months of unlimited access to Skillshare for free! Try it here: https://skl.sh/scishow-14 Some elements can basically be liquids and solids at the same time, which is a whole new state of matter, and scientists h

• 05:04

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

412 views / 0 likes - added

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

• 03:04

### Trick Question - Find the missing dollar

337 views / 1 likes - added

Trick question! Three friends are overcharged for their hotel room. The hotel decides to refund the difference. After the hotel issues the refund one dollar has mysteriously disappeared. Where is the missing dollar? Find the solution to this trick questio

• 13:32

### The Quantum Experiment that Broke Reality | Space Time | PBS Digital Studios

237 views / 0 likes - added

The double slit experiment radically changed the way we understand reality. To check out any of the lectures available from The Great Courses Plus go to http://ow.ly/QVaz302duhX and get ready to learn about everything from cooking to calculus. Get your ow

• 07:25

### Algebra Word Problem - Factoring

305 views / 0 likes - added

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.

• 05:24

### Math Challenge - Shrinking Pool Problem

431 views / 0 likes - added

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

• 03:50

209 views / 0 likes - added

When using more than one adjective, sometimes you put a comma between them and sometimes you don't. Learn how to tell when you need a comma in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-modifier/e/commas-

• 04:09

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

321 views / 0 likes - added

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

• 03:45

### Introduction to the possessive | The Apostrophe | Punctuation | Khan Academy

208 views / 0 likes - added

Apostrophes can help show when something belongs to someone. Paige and David explain how! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/introduction-to-the-possessive-case Watch the next lesson: https://www

• 05:38

### Algebra word problem - System of Equations

325 views / 0 likes - added

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

• 05:07

### Complex sentences | Syntax | Khan Academy

187 views / 0 likes - added

Complex sentences are simple sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot them and use them in this video. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/syntax/v/compound-comple

• 01:51

### Possession for words ending in “s” | The Apostrophe | Punctuation | Khan Academy

182 views / 0 likes - added

Do words that end in "s" still need _'s_ to show possession? David and Paige explain! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/introduction-to-the-possessive-case Watch the next lesson: https://www.kha

• 04:32

### Math Word problems - Solving triangles

328 views / 0 likes - added

Become an expert in solving math word problems! In this problem you will learn how to use triangles to solve the height of a building. A man steps back 50 feet which the angle to the top of the building change 15 degrees. Using this information find the h

• 04:11

### Advanced (plural) possession | The Apostrophe | Punctuation | Khan Academy

229 views / 0 likes - added

Paige and David talk about using apostrophes to show that something belongs to multiple people. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/e/advanved--plural--possesion Watch

• 02:59

### Breakthrough Junior Challenge 2017 | Relativity & The Equivalence of Reference Frames

302 views / 0 likes - added

The core concept of relativity is interesting in that it shatters the singularity in perspective that we have become accustomed to. Watch the video to learn more! This is my entry to the Breakthrough Junior Challenge 2017. #breakthroughjuniorchallenge Ple

• 02:31

### Choosing between its and it’s | The Apostrophe | Punctuation | Khan Academy

177 views / 1 likes - added

David and Paige explain the meaning of two English words that look and sound very similar but act very different: _its_ and _it's_. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe

• 03:36

### Introduction to contractions | The Apostrophe | Punctuation | Khan Academy

269 views / 0 likes - added

Apostrophes are great at standing in for missing letters, allowing us to shorten words. Paige and David discuss contractions and the Principle of Least Effort. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/

• 07:04

### Dependent and independent clauses | Syntax | Khan Academy

252 views / 0 likes - added

Independent clauses can stand on their own as sentences, but dependent clauses can’t. We’ll take a closer look at what this means. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/dependent-and-independent-clauses Wat

• 10:09

### Integrals: Crash Course Physics #3

270 views / 0 likes - added

Continuing with last week's introduction of calculus, Shini leads us through the ways that integrals can help us figure out things like distance when we have several other key bits of information. Say, for instance, you wanted to know how far your window

• 05:05

### Parallel structure | Syntax | Khan Academy

234 views / 0 likes - added

Parallel structure isn’t a set rule, but more of a stylistic choice: it helps sentence elements maintain a pattern. This is a very special episode because it’s Paige’s last video with us as a KA intern! We will miss having Paige as a contributor to the Gr

• 03:19

### Commas in space and time | The Comma | Punctuation | Khan Academy

196 views / 0 likes - added

Learn how to use commas when writing addresses (in space) and dates (in time). Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/salutations--valedictions--dates--and-addresses Watch t

• 04:53

### Subject-verb agreement | Syntax | Khan Academy

234 views / 0 likes - added

Agreement is the art of making sure that sentence parts agree with one another; you want to make sure that your subjects and verbs match up. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/subject-verb-agreement Watc

• 02:50

### Exclamations | Syntax | Khan Academy

187 views / 0 likes - added

An exclamation is a sentence that expresses great emotion! David and Paige covered declarative, interrogative, and imperative sentences; now they tackle a fourth type of sentence that ends in an exclamation mark. Find out more! Watch the next lesson: http

• 02:51

### Apostrophes and plurals | The Apostrophe | Punctuation | Khan Academy

174 views / 0 likes - added

There is *one* extremely rare case in which we use apostrophes to make things plural. David and Paige, KA's resident grammarians, discuss this unusual case. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/p

• 09:03

### BONUS VIDEO | Singular They | The parts of speech | Grammar | Khan Academy

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You may have been hearing a lot about the "singular they" recently. But what is it? How does it work, what is its history, and is it grammatical? Let's find out. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-modif

• 04:14

### Compound-complex sentences | Syntax | Khan Academy

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Compound-complex sentences are compound sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot and use them. Practice this yourself on Khan Academy right now www.khanacademy.org/syntax/e/complex-and-compound-com

• 03:32

### Three types of sentence | Syntax | Khan Academy

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Three essential types of sentence are declarative sentences (which are statements), interrogative sentences (which are questions), and imperative sentences (which are orders). Join us as we give examples of each! Practice this yourself on Khan Academy rig

• 04:19

### Dangling modifiers | Syntax | Khan Academy

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A modifying word or phrase “dangles” when it doesn’t apply to the word it’s supposed to modify. Learn how to spot and fix this problem! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/dangling-modifiers/ Watch the ne

• 02:01

### The present tense | The parts of speech | Grammar | Khan Academy

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How do we talk about things that are happening right now? Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/the-past-tense-verbs-the-parts-of-speech?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Misse

• 04:07

### Pronoun-antecedent agreement | Syntax | Khan Academy

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An antecedent is “the thing that came before”. When you use a pronoun, it’s standing in for a word you used previously—that’s the antecedent. Join us as we demonstrate how to make sure that your pronouns and antecedents match up with one another: that’s c

• 04:29

### Simple and compound sentences | Syntax | Khan Academy

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A simple sentence contains one independent clause. A compound sentence contains more than one! Put another way: a simple sentence contains a subject and a predicate, but a compound sentence contains more than one subject and more than one predicate. Pract

• 02:00

### The past tense | The parts of speech | Grammar | Khan Academy

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When you want to talk about events that have already happened, you use the past tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/the-future-tense-verbs-the-parts-of-speech?utm_source=YT&utm_medium=

• 02:50

### The future tense | The parts of speech | Grammar | Khan Academy

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When you want to talk about the future in English, you use the future tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/linking-verbs-the-parts-of-speech-grammar?utm_source=YT&utm_medium=Desc&utm_ca

• 04:21

### Introduction To The SAT Reading Test | Tips & Planning | New SAT | Khan Academy

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• 03:48

### Recognizing fragments | Syntax | Khan Academy

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A sentence fragment is a chunk of language that hasn’t made it all the way to being a working sentence; it might be missing a verb, or there might not be a subject. Learn how to turn a fragment into a sentence in this video! Practice this yourself on Khan

• 02:18

### Salutations and valedictions | Punctuation | Grammar | Khan Academy

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David and Paige, KA’s resident grammarians, talk about how to address and sign off on letters using commas! Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/commas-in-space-and-time-the-comma-punctuation-khan-a

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