Search Results: "Hat"

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18:29
US History Overview 1: Jamestown to the Civil War

603 views / 3 likes - added 5 years ago

Jamestown to the Civil War. Correction: Jamestown was the first successful ENGLISH settlement in what is now the United States. The Spanish actually settled St. Augustine, Florida in 1595. More free lessons at: http://www.khanacademy.org/video?v=ghgPq2wjQ
02:49
Probability Space

470 views / 0 likes - added 5 years ago

Basics of what a probability space is
10:16
Comparative Advantage and Absolute Advantage

362 views / 0 likes - added 5 years ago

Showing that a party benefits from trade as long as there is a comparative advantage (and not necessarily an absolute advantage) More free lessons at: http://www.khanacademy.org/video?v=xN3UV5FsBkU
04:37
Constant Unit Elasticity

291 views / 0 likes - added 5 years ago

What a demand curve with constant unit elasticity would look like More free lessons at: http://www.khanacademy.org/video?v=m7qXvQvWlY4
05:40
Percentage Tax on Hamburgers

358 views / 0 likes - added 5 years ago

What would happen if we have a percentage tax instead of a fixed dollar amount More free lessons at: http://www.khanacademy.org/video?v=xwOTlMaerEQ
08:43
Deriving Demand Curve from Tweaking Marginal Utility per Dollar

346 views / 0 likes - added 5 years ago

Seeing what happens to quantity demanded when price changes More free lessons at: http://www.khanacademy.org/video?v=4-_-wQc3EGE
12:11
Budget Line

255 views / 0 likes - added 5 years ago

What I can buy with my income More free lessons at: http://www.khanacademy.org/video?v=Uq5Wzs96tiw
09:24
Optimal Point on Budget Line

360 views / 0 likes - added 5 years ago

Using indifference curves to think about the point on the budget line that maximizes total utility More free lessons at: http://www.khanacademy.org/video?v=nhSSu0Nzs30
05:44
Monopoly Basics

283 views / 0 likes - added 5 years ago

Thinking about what would happen with one airline. The opposite of perfect competition More free lessons at: http://www.khanacademy.org/video?v=77CApfQlTuE
05:57
Monopolist Optimizing Price (part 3)- Dead Weight Loss.avi

264 views / 0 likes - added 5 years ago

Showing that what is optimal for the monopolist is not optimal for society More free lessons at: http://www.khanacademy.org/video?v=daxL1ZLrUzg
04:56
Optional Calculus Proof to Show that MR has Twice Slope of Demand

346 views / 0 likes - added 5 years ago

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
09:21
Oligopolies and Monopolistic Competition

305 views / 0 likes - added 5 years ago

Thinking about different markets that are in-between monopolies and perfect competition More free lessons at: http://www.khanacademy.org/video?v=PzDthFTzEa0
11:59
Parsing Gross Domestic Product

258 views / 0 likes - added 5 years ago

Understanding what GDP does and doesn't measure. More free lessons at: http://www.khanacademy.org/video?v=zh8XASZxo1Q
02:50
More on Final and Intermediate GDP Contributions

243 views / 0 likes - added 5 years ago

What happens when a good is not finished in a period More free lessons at: http://www.khanacademy.org/video?v=C1pHvEAKmLA
08:47
Phillips Curve

340 views / 0 likes - added 5 years ago

The observation that inflation and unemployment tend to be inversely correlated More free lessons at: http://www.khanacademy.org/video?v=v7ZWTZ9NgU4
05:18
Shifts in Aggregate Demand

239 views / 0 likes - added 5 years ago

Factors that might shift aggregate demand More free lessons at: http://www.khanacademy.org/video?v=scN-1B6plos
11:10
Short-Run Oil Prices

263 views / 0 likes - added 5 years ago

Thinking about what moves oil prices More free lessons at: http://www.khanacademy.org/video?v=ZxtlcZ-d90o
09:02
Mathy Version of MPC and Multiplier (optional)

400 views / 0 likes - added 5 years ago

Generalizing what we did in the last video with more math More free lessons at: http://www.khanacademy.org/video?v=czfJKPN-HEo
10:36
Greek Financial Crisis (part 2)

297 views / 0 likes - added 5 years ago

What Greece could have done if it had it's own currency More free lessons at: http://www.khanacademy.org/video?v=CkNArgNPI2Y
13:47
What it means to buy a company's stock

299 views / 0 likes - added 5 years ago

What it means to buy a company's stock More free lessons at: http://www.khanacademy.org/video?v=98qfFzqDKR8
16:30
Roth IRAs

326 views / 0 likes - added 5 years ago

Overview of what a Roth IRA is. More free lessons at: http://www.khanacademy.org/video?v=th06SCNNZ60
13:04
Personal bankruptcy - Chapters 7 and 13

256 views / 0 likes - added 5 years ago

What is bankruptcy? More free lessons at: http://www.khanacademy.org/video?v=H3tg4bH5JuY
18:27
Introduction to mortgage loans

279 views / 0 likes - added 5 years ago

Explains mortgages. This will help you understand what you are doing when you are paying a mortgage. More free lessons at: http://www.khanacademy.org/video?v=IDHJCEKeHLc
08:42
Introduction to bonds

324 views / 0 likes - added 5 years ago

What it means to buy a bond More free lessons at: http://www.khanacademy.org/video?v=Qh-M3_L4xYk
04:08
Basics of US income tax rate schedule

292 views / 0 likes - added 5 years ago

Understanding that a marginal tax rate does not apply to all of income More free lessons at: http://www.khanacademy.org/video?v=OGVJfcSckUs
11:15 Popular
SOPA and PIPA

1,268 views / 0 likes - added 5 years ago

What SOPA and PIPA are at face value and what they could end up enabling More free lessons at: http://www.khanacademy.org/video?v=tzqMoOk9NWc
09:12
Koch Snowflake Fractal

440 views / 0 likes - added 5 years ago

A shape that has an infinite perimeter but finite area More free lessons at: http://www.khanacademy.org/video?v=azBNsPa1WC4
07:31
FICA Tax

264 views / 0 likes - added 5 years ago

How the FICA tax is calculated and what it stands for More free lessons at: http://www.khanacademy.org/video?v=UP9xy2eVj7s
15:43
Calculus: Derivatives 1 (new HD version)

520 views / 0 likes - added 5 years ago

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
05:20
While Loops in Python

342 views / 0 likes - added 5 years ago

Seeing that a while loop can do the same thing as a for loop
13:58
Fun with Strings

519 views / 0 likes - added 5 years ago

Experimenting and seeing what we can do with strings
09:24
Stepping Through the Factorial Program

343 views / 0 likes - added 5 years ago

Stepping through what happens when a user inputs a particular value into our factorial program
09:12
Diagramming What Happens with a Function Call

345 views / 0 likes - added 5 years ago

Variable scope and function calls
02:12
Exercise - Write a Sorting Function

353 views / 0 likes - added 5 years ago

Challenge to write a Python function that can sort a list in-place
11:55
Stepping Through Insertion Sort Function

341 views / 0 likes - added 5 years ago

Clarifying what "break" does and stepping through the insertion sort implementation
09:34
Projectile motion (part 5)

265 views / 0 likes - added 5 years ago

How fast was the ball that you threw upwards? More free lessons at: http://www.khanacademy.org/video?v=dlpmllTx5MY
10:08
Introduction to centripetal acceleration (part 1)

317 views / 0 likes - added 5 years ago

Intuition behind what it takes to make something travel in a circle
10:01
Visual Proof: a= v^2/r

319 views / 0 likes - added 5 years ago

Visual proof that centripetal acceleration = v^2/r
10:14
Calculus Proof that a=v^2/r

398 views / 0 likes - added 5 years ago

Using calculus and vectors to show that centripetal acceleration = v^2/r
04:12
Correction Calendar Notation

362 views / 0 likes - added 5 years ago

Correcting the time difference calculation by taking into account that there is no year 0 More free lessons at: http://www.khanacademy.org/video?v=N06Jy-gQog8
02:06
What Causes Precession and Other Orbital Changes

264 views / 0 likes - added 5 years ago

What causes precession and other orbital changes More free lessons at: http://www.khanacademy.org/video?v=nL6LMX8-bPY
10:35
Potassium-Argon (K-Ar) Dating

384 views / 0 likes - added 5 years ago

How K-Ar dating can be used to date very old volcanic rock and the things that might be buried in between More free lessons at: http://www.khanacademy.org/video?v=NMZ5kJEviD0
10:30
Probability (part 1)

330 views / 0 likes - added 5 years ago

What probability is. More free lessons at: http://www.khanacademy.org/video?v=3ER8OkqBdpE
12:48
Nucleophilicity vs. Basicity

303 views / 0 likes - added 5 years ago

Nucleophilicity vs. Basicity . The difference between what it means to be a nucleophile and a base More free lessons at: http://www.khanacademy.org/video?v=Mx7KM-k2MMo
01:04
Ape Clarification

249 views / 0 likes - added 5 years ago

Ape Clarification - that they have no tails More free lessons at: http://www.khanacademy.org/video?v=oFGkYA_diDA
11:36
Intelligent Design and Evolution

319 views / 0 likes - added 5 years ago

The argument that evolution speaks to being the most "intelligent design" More free lessons at: http://www.khanacademy.org/video?v=qxOEz9aPZNY
12:36
Cancer

553 views / 1 likes - added 5 years ago

An introduction to what cancer is and how it is the by-product of broken DNA replication More free lessons at: http://www.khanacademy.org/video?v=RZhL7LDPk8w
13:35
ATP: Adenosine Triphosphate

459 views / 0 likes - added 5 years ago

Introduction to ATP or Adenosine Triphosphate
08:49
Species

343 views / 1 likes - added 5 years ago

What a species is and isn't. Ligers, tiglons, mule, hinnies, and dogs More free lessons at: http://www.khanacademy.org/video?v=Tmt4zrDK3dA
12:13
Periodic Table Trends: Ionization Energy

302 views / 0 likes - added 5 years ago

What an ion is. Using the periodic table to understand how difficult it is to ionize an atom. More free lessons at: http://www.khanacademy.org/video?v=ywqg9PorTAw
14:43
Le Chatelier's Principle

344 views / 0 likes - added 5 years ago

Le Chatelier's Principle regarding the "stressing" of reactions in equilibrium More free lessons at: http://www.khanacademy.org/video?v=4-fEvpVNTlE
12:22
Exponential Decay Formula Proof (can skip, involves Calculus)

405 views / 0 likes - added 5 years ago

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
16:56
Proof: U=(3/2)PV or U=(3/2)nRT

453 views / 0 likes - added 5 years ago

Conceptual proof that the internal energy of an ideal gas system is 3/2 PV. More free lessons at: http://www.khanacademy.org/video?v=qSFY7GKhSRs
19:03
Work Done by Isothermic Process

324 views / 0 likes - added 5 years ago

Isothermic and Adiabatic processes. Calculating the work done by an isothermic process. Seeing that it is the same as the heat added. More free lessons at: http://www.khanacademy.org/video?v=iiFWoXQPOJc
15:38
Proof: S (or Entropy) is a valid state variable

308 views / 0 likes - added 5 years ago

Prroof that S (or entropy) is a valid state variable. More free lessons at: http://www.khanacademy.org/video?v=sPz5RrFus1Q
15:38
Thermodynamic Entropy Definition Clarification

272 views / 0 likes - added 5 years ago

Clarifying that the thermodynamic definition of Entropy requires a reversible system. More free lessons at: http://www.khanacademy.org/video?v=PFcGiMLwjeY
19:15
Entropy Intuition

267 views / 0 likes - added 5 years ago

A discussion of what entropy is and what it isn't. More free lessons at: http://www.khanacademy.org/video?v=xJf6pHqLzs0
13:27
Maxwell's Demon

340 views / 0 likes - added 5 years ago

Maxwell's Demon: A thought experiment that seems to defy the 2nd Law of Thermodynamics More free lessons at: http://www.khanacademy.org/video?v=aKRDvSZ-igA
08:56
More on Entropy

269 views / 0 likes - added 5 years ago

More clarification as to what entropy is and what entropy is not. More free lessons at: http://www.khanacademy.org/video?v=dFFzAP2OZ3E
12:17
Carnot Efficiency 3: Proving that it is the most efficient

275 views / 0 likes - added 5 years ago

Proving that a Carnot Engine is the most efficient engine More free lessons at: http://www.khanacademy.org/video?v=LUoUb4hGMH8
06:50
Liar Truthteller Brain Teaser

506 views / 0 likes - added 5 years ago

How to get correct advice when you can only ask one question from either a liar or a truthteller (when you don't know who is what) More free lessons at: http://www.khanacademy.org/video?v=69rDtSpshAw
07:25
Brain Teaser: Blue Forehead Room

541 views / 0 likes - added 5 years ago

What happens when 100 perfect logicians have to figure out if they each have a blue forehead? More free lessons at: http://www.khanacademy.org/video?v=rBaCDC52NOY
12:53
Unemployment

318 views / 0 likes - added 5 years ago

Analyzing unemployment data to show that "real" unemployment is worse than the headline numbers show. More free lessons at: http://www.khanacademy.org/video?v=vUOiOi-XaoQ
12:25
Geithner Plan 2.5

391 views / 0 likes - added 5 years ago

More exotic ways that a bank could buy transfer exposure to the taxpayer. More free lessons at: http://www.khanacademy.org/video?v=0FxRYePmogU
13:07
Statistics: Standard Deviation

281 views / 0 likes - added 5 years ago

Review of what we've learned. Introduction to the standard deviation. More free lessons at: http://www.khanacademy.org/video?v=HvDqbzu0i0E
26:04
Normal Distribution Excel Exercise

418 views / 0 likes - added 5 years ago

(Long-26 minutes) Presentation on spreadsheet to show that the normal distribution approximates the binomial distribution for a large number of trials. More free lessons at: http://www.khanacademy.org/video?v=yTGEMoaWDCQ
06:47
Squared Error of Regression Line

474 views / 0 likes - added 5 years ago

Introduction to the idea that one can find a line that minimizes the squared distances to the points More free lessons at: http://www.khanacademy.org/video?v=6OvhLPS7rj4
10:52
Bailout 2: Book Value

419 views / 0 likes - added 5 years ago

Hypothetical bank balance sheet. What book value means. More free lessons at: http://www.khanacademy.org/video?v=YJBqGM29_64
10:33
Bailout 3: Book value vs. market value

440 views / 0 likes - added 5 years ago

What it means when the market value of a stock is different from its book value. More free lessons at: http://www.khanacademy.org/video?v=TUOQZjotyAQ
10:51
Bailout 5: Paying off the debt

370 views / 0 likes - added 5 years ago

How the bank can liquidate assets to pay off debt that comes due. More free lessons at: http://www.khanacademy.org/video?v=I8BLj7cRM7c
10:25
Bailout 7: Bank goes into bankruptcy

430 views / 0 likes - added 5 years ago

What happens when there is no equity infusion and the bank goes in to bankruptcy. More free lessons at: http://www.khanacademy.org/video?v=MdIfefLcdoU
11:53
Bailout 8: Systemic Risk

395 views / 0 likes - added 5 years ago

How the banks are connected. What happens when one bank fails. More free lessons at: http://www.khanacademy.org/video?v=gX9aKDeAOz4
11:06
Bailout 9: Paulson's Plan

388 views / 0 likes - added 5 years ago

What Paulson wants to do and why I don't like it. More free lessons at: http://www.khanacademy.org/video?v=eBYbnYNl0rw
12:22
Bailout 14: Possible Solution

416 views / 0 likes - added 5 years ago

A solution that is MUCH fairer that has a MUCH better chance of working! More free lessons at: http://www.khanacademy.org/video?v=BdmI14oSe4g
09:22
Banking 10: Introduction to leverage (bad sound)

461 views / 0 likes - added 5 years ago

What leverage is. Why it is is good or bad. Leverage and insolvency. More free lessons at: http://www.khanacademy.org/video?v=8fxilNdEQTo
11:19
Banking 12: Treasuries (government debt)

474 views / 0 likes - added 5 years ago

Introduction to government debt and treasuries. What it means when we say that Federal Reserve Notes are issued by the Reserve bank but are an obligation of the Government. More free lessons at: http://www.khanacademy.org/video?v=JBWdbzzYbtU
10:13
Banking 17: What happened to the gold?

487 views / 0 likes - added 5 years ago

Getting off the gold standard. A short discussion of the meaning of wealth. More free lessons at: http://www.khanacademy.org/video?v=NFDMXwwzyIM
11:03
What is a differential equation

333 views / 0 likes - added 5 years ago

What a differential equation is and some terminology.
08:26
Integrating factors 2

293 views / 0 likes - added 5 years ago

Now that we've made the equation exact, let's solve it! More free lessons at: http://www.khanacademy.org/video?v=0NyeDUhKwBE
10:28
Complex roots of the characteristic equations 1

327 views / 0 likes - added 5 years ago

What happens when the characteristic equations has complex roots?! More free lessons at: http://www.khanacademy.org/video?v=6xEO4BeawzA
10:24
Complex roots of the characteristic equations 2

330 views / 0 likes - added 5 years ago

What happens when the characteristic equation has complex roots? More free lessons at: http://www.khanacademy.org/video?v=jJyRrIZ595c
11:58
Repeated roots of the characteristic equation

271 views / 0 likes - added 5 years ago

What happens when the characteristic equation only has 1 repeated root? More free lessons at: http://www.khanacademy.org/video?v=NW9JfMvIsxw
19:12
Laplace/Step Function Differential Equation

474 views / 0 likes - added 5 years ago

Hairy differential equation involving a step function that we use the Laplace Transform to solve. More free lessons at: http://www.khanacademy.org/video?v=R0JY8oWsuOY
11:51
Introduction to matrices

315 views / 0 likes - added 5 years ago

What a matrix is. How to add and subtract them.
21:10
Matrix Vector Products

473 views / 0 likes - added 5 years ago

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
10:23
Introduction to the Null Space of a Matrix

398 views / 0 likes - added 5 years ago

Showing that the Null Space of a Matrix is a valid Subspace More free lessons at: http://www.khanacademy.org/video?v=jCwRV1QL_Xs
08:33
Showing relation between basis cols and pivot cols

385 views / 0 likes - added 5 years ago

Showing that linear independence of pivot columns implies linear independence of the corresponding columns in the original equation More free lessons at: http://www.khanacademy.org/video?v=BfVjTOjvI30
13:40
Showing that the candidate basis does span C(A)

384 views / 0 likes - added 5 years ago

Showing that just the columns of A associated with the pivot columns of rref(A) do indeed span C(A). More free lessons at: http://www.khanacademy.org/video?v=CkQOCnLWPUA
18:11
Image of a subset under a transformation

400 views / 0 likes - added 5 years ago

Exploring what happens to a subset of the domain under a transformation More free lessons at: http://www.khanacademy.org/video?v=MIAmN5kgp3k
16:37
im(T): Image of a Transformation

436 views / 0 likes - added 5 years ago

Showing that the image of a subspace under a transformation is also a subspace. Definition of the image of a Transformation. More free lessons at: http://www.khanacademy.org/video?v=hZ827mfh1Jo
06:59
Unit Vectors

442 views / 0 likes - added 5 years ago

What unit vectors are and how to construct them More free lessons at: http://www.khanacademy.org/video?v=lQn7fksaDq0
11:59
Matrix Product Associativity

435 views / 0 likes - added 5 years ago

Showing that matrix products are associative More free lessons at: http://www.khanacademy.org/video?v=Hhc96U_HvQE
09:52
Distributive Property of Matrix Products

482 views / 0 likes - added 5 years ago

Showing that matrix products exhibit the distributive property More free lessons at: http://www.khanacademy.org/video?v=oMWTMj78cwc
20:00
Linear Algebra: Matrix condition for one-to-one trans

446 views / 0 likes - added 5 years ago

Showing that the rank of the of an mxn transformation matrix has to be an for the transformation to be one-to-one (injective) More free lessons at: http://www.khanacademy.org/video?v=M3FuL9qKTBs
06:37
Linear Algebra: Simplifying conditions for invertibility

393 views / 0 likes - added 5 years ago

Showing that a transformation is invertible if and only if rref(A) is equal to the identity matrix More free lessons at: http://www.khanacademy.org/video?v=Yz2OosyMTmY
21:25
Linear Algebra: Showing that Inverses are Linear

385 views / 0 likes - added 5 years ago

Showing that inverse transformations are also linear More free lessons at: http://www.khanacademy.org/video?v=mr9Tow8hpCg
02:52
Linear Algebra: (correction) scalar muliplication of row

532 views / 0 likes - added 5 years ago

Correction of last video showing that the determinant when one row is multiplied by a scalar is equal to the scalar times the determinant More free lessons at: http://www.khanacademy.org/video?v=WY6QG0mZ7uQ
16:55
Linear Algebra: Determinant when row is added

429 views / 0 likes - added 5 years ago

The determinant when one matrix has a row that is the sum of the rows of other matrices (and every other term is identical in the 3 matrices) More free lessons at: http://www.khanacademy.org/video?v=VrB3LaSD_uo
10:25
Linear Algebra: Determinant after row operations

412 views / 0 likes - added 5 years ago

What happens to the determinant when we perform a row operation More free lessons at: http://www.khanacademy.org/video?v=kpG7xySkivg
21:38
Linear Algebra: Determinant and area of a parallelogram

522 views / 0 likes - added 5 years ago

Realizing that the determinant of a 2x2 matrix is equal to the area of the parallelogram defined by the column vectors of the matrix More free lessons at: http://www.khanacademy.org/video?v=n-S63_goDFg
14:10
Linear Algebra: Determinant of Transpose

448 views / 0 likes - added 5 years ago

Proof by induction that transposing a matrix does not change its determinant More free lessons at: http://www.khanacademy.org/video?v=x-GV2v0dRNE
09:27
Linear Algebra: dim(V) + dim(orthogonoal complelent of V)=n

393 views / 0 likes - added 5 years ago

Showing that if V is a subspace of Rn, then dim(V) + dim(V's orthogonal complement) = n More free lessons at: http://www.khanacademy.org/video?v=pGhBfkBqok0
27:01
Lin Alg: Representing vectors in Rn using subspace members

415 views / 0 likes - added 5 years ago

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
12:18
Lin Alg: Orthogonal Complement of the Orthogonal Complement

403 views / 0 likes - added 5 years ago

Finding that the orthogonal complement of the orthogonal complement of V is V More free lessons at: http://www.khanacademy.org/video?v=zlI8mx8Hc8o
19:12
Lin Alg: Unique rowspace solution to Ax=b

448 views / 0 likes - added 5 years ago

Showing that, for any b that is in the column space of A, there is a unique member of the row space that is the "smallest" solution to Ax=b More free lessons at: http://www.khanacademy.org/video?v=czIYvs9zj2g
12:34
Lin Alg: Showing that A-transpose x A is invertible

452 views / 0 likes - added 5 years ago

Showing that (transpose of A)(A) is invertible if A has linearly independent columns More free lessons at: http://www.khanacademy.org/video?v=ESSMQH6Y5OA
09:28
Linear Alg: Visualizing a projection onto a plane

416 views / 0 likes - added 5 years ago

Visualizing a projection onto a plane. Showing that the old and new definitions of projections aren't that different. More free lessons at: http://www.khanacademy.org/video?v=uWbZlJURkfA
16:16
Lin Alg: A Projection onto a Subspace is a Linear Transforma

444 views / 0 likes - added 5 years ago

Showing that a projection onto a subspace is a linear transformation More free lessons at: http://www.khanacademy.org/video?v=cTyNpXB92bQ
09:05
Linear Alg: Projection is closest vector in subspace

434 views / 0 likes - added 5 years ago

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
12:36
Lin Alg: Alternate Basis Tranformation Matrix Example Part 2

420 views / 0 likes - added 5 years ago

Showing that the transformation matrix with respect to basis B actually works. Brief point on why someone would want to operate in a different basis to begin with. More free lessons at: http://www.khanacademy.org/video?v=EyORbCPUAd4
11:16
Linear Algebra: Introduction to Orthonormal Bases

431 views / 0 likes - added 5 years ago

Looking at sets and bases that are orthonormal -- or where all the vectors have length 1 and are orthogonal to each other. More free lessons at: http://www.khanacademy.org/video?v=7BFx8pt2aTQ
15:28
Linear Algebra: Coordinates with respect to orthonormal bases

531 views / 0 likes - added 5 years ago

Seeing that orthonormal bases make for good coordinate systems More free lessons at: http://www.khanacademy.org/video?v=SWbis2zWIvo
11:16
Lin Alg: Orthogonal matrices preserve angles and lengths

509 views / 0 likes - added 5 years ago

Showing that orthogonal matrices preserve angles and lengths More free lessons at: http://www.khanacademy.org/video?v=yDwIfYjKEeo
07:43
Linear Algebra: Introduction to Eigenvalues and Eigenvectors

432 views / 0 likes - added 5 years ago

What eigenvectors and eigenvalues are and why they are interesting More free lessons at: http://www.khanacademy.org/video?v=PhfbEr2btGQ
13:09
Linear Algebra: Showing that an eigenbasis makes for good coordinate systems

481 views / 0 likes - added 5 years ago

Showing that an eigenbasis makes for good coordinate systems More free lessons at: http://www.khanacademy.org/video?v=C2PC9185gIw
16:52
Conditional Probability and Combinations

499 views / 0 likes - added 5 years ago

Probability that I picked a fair coin given that I flipped 4 out of 6 heads. More free lessons at: http://www.khanacademy.org/video?v=xw6utjoyMi4
13:17
Birthday Probability Problem

566 views / 0 likes - added 5 years ago

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
14:16
Acceleration of Aircraft Carrier Takeoff

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Using what we know about takeoff velocity and runway length to determine acceleration More free lessons at: http://www.khanacademy.org/video?v=VYgSXBjEA8I
10:35
Would a Brick or Feather Fall Faster

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What would fall faster on the moon? More free lessons at: http://www.khanacademy.org/video?v=36Rym2q4H94
07:18
Normal Force and Contact Force

305 views / 0 likes - added 5 years ago

The force that keeps a block of ice from falling towards the center of the earth More free lessons at: http://www.khanacademy.org/video?v=1WOrgrIcQZU
12:43
Inclined Plane Force Components

438 views / 0 likes - added 5 years ago

Figuring out the components of the force due to gravity that are parallel and perpendicular to the surface of an inclined plane More free lessons at: http://www.khanacademy.org/video?v=TC23wD34C7k
09:18
Introduction to Momentum

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What momentum is. A simple problem involving momentum. More free lessons at: http://www.khanacademy.org/video?v=XFhntPxow0U
09:13
Unit Vector Notation (part 2)

376 views / 0 likes - added 5 years ago

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
14:22
Calculus proof of centripetal acceleration formula

409 views / 0 likes - added 5 years ago

Proving that a = v^2/r More free lessons at: http://www.khanacademy.org/video?v=XjCEumlJBno
10:13
Acceleration Due to Gravity at the Space Station

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What is the acceleration due to gravity at the space station More free lessons at: http://www.khanacademy.org/video?v=R5CRZONOHCU
09:47
Fluids (part 1)

301 views / 0 likes - added 5 years ago

What a fluid is. Difference between liquids and gasses (both fluids). More free lessons at: http://www.khanacademy.org/video?v=Pn5YEMwQb4Y
10:09
Fluids (part 9)

340 views / 0 likes - added 5 years ago

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
08:36
Fluids (part 10)

302 views / 0 likes - added 5 years ago

Second part of the example that uses Bernoulli's equation. More free lessons at: http://www.khanacademy.org/video?v=NGpJPz44JYc
10:18
Thermodynamics (part 2)

242 views / 0 likes - added 5 years ago

Example problem that pv=pv. Introduction to temperature. More free lessons at: http://www.khanacademy.org/video?v=x34OTtDE5q8
14:02
Electrostatics (part 1): Introduction to Charge and Coulomb's Law

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Introduction to Charge and Coulomb's Law (video from May 2008 that I forgot to upload) More free lessons at: http://www.khanacademy.org/video?v=NXMgvrS8Gr8
11:29
Proof (Advanced): Field from infinite plate (part 2)

437 views / 0 likes - added 5 years ago

We see that the infinite, uniformly charged plate generates a constant electric field (independent of the height above the plate) More free lessons at: http://www.khanacademy.org/video?v=TxwE4_dXo8s
10:48
Magnetism 3

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Whats happens when a speeding proton goes through a magnetic field More free lessons at: http://www.khanacademy.org/video?v=LTuGQy4rmmo
11:00
Magnetism 7

318 views / 0 likes - added 5 years ago

The magnetic force that two current-carrying wires exert on each other. More free lessons at: http://www.khanacademy.org/video?v=l3hw0twZSCc
09:05
The Bicameral Congress: Crash Course Government and Politics #2

471 views / 0 likes - added 5 years ago

In which Craig Benzine teaches you about the United States Congress, and why it's bicameral, and what bicameral means. Craig tells you what the Senate and House of Representatives are for, some of the history of the institutions, and reveal to you just ho
08:31 Popular
Separation of Powers and Checks and Balances: Crash Course Government and Politics #3

735 views / 2 likes - added 5 years ago

In which Craig Benzine teaches you about the US Governments Separation of powers and the system of checks and balances. In theory, the Legislative Branch, the Executive Branch, and the Judicial Brach are designed to keep each other in check, and to keep a
09:15
Federalism: Crash Course Government and Politics #4

441 views / 0 likes - added 5 years ago

In which Craig Benzine teaches you about federalism, or the idea that in the United States, power is divided between the national government and the 50 state governments. Craig will teach you about how federalism has evolved over the history of the US, an
08:57
Constitutional Compromises: Crash Course Government and Politics #5

452 views / 1 likes - added 5 years ago

In which Craig Benzine teaches you about the compromises met in ratifying the U.S. Constitution. The United State’s didn’t always have its current system of government. Actually, this is it’s second attempt. Craig will delve into the failures (and few suc
08:28
Congressional Committees: Crash Course Government and Politics #7

452 views / 0 likes - added 5 years ago

This week Craig Benzine clears up the role of committees in Congress. We’ll talk about standing committees, joint committees, conference committees, and caucuses (and not the candidate-choosing kinds) as well as the staff agencies that help advise these c
06:36
Congressional Decisions: Crash Course Government and Politics #10

388 views / 0 likes - added 5 years ago

This week Craig breaks out the crystal ball to try and figure out why our congresspeople do the things that they do. We’ll talk about the three motivating factors of congressional decisions - constituency, interest groups, and political parties - and we’l
06:30
Presidential Power: Crash Course Government and Politics #11

469 views / 0 likes - added 5 years ago

This week Craig looks at the expressed powers of the President of the United States - that is the ones you can find in the Constitution. From appointing judges and granting pardons, to vetoing laws and acting as the nation’s chief diplomat on foreign poli
12:12
Introduction to Astronomy: Crash Course Astronomy #1

448 views / 1 likes - added 5 years ago

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?" -- Table of Contents: What is Astronomy? 3:00 Who Studie
09:29
Cycles in the Sky: Crash Course Astronomy #3

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This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe. -- Table of Contents: Naked Eye Observations 0:28.4 Constellations 3:09.7 The Color of Stars 2:44.5 View of
10:32
Eclipses: Crash Course Astronomy #5

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The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse -- As promised, Phil's sun spotting recommendations: Astronome
09:47
Tides: Crash Course Astronomy #8

545 views / 1 likes - added 5 years ago

Today Phil explores the world of tides! What is the relationship between tides and gravity? How do planets and their moons become tidally locked? What would happen if you were 300km tall? Important questions. -- Gravity Over Distance 0:44 Tidal Force Para
12:04
The Sun: Crash Course Astronomy #10

513 views / 1 likes - added 5 years ago

Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our solar system. We look at the sun's core, plasma, magnetic fields, sunspots, solar flares, coronal mass ejections, and what all of that means for our planet. This epis
09:43
Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P #5

565 views / 0 likes - added 5 years ago

•••SUBBABLE MESSAGE••• TO: the world. FROM: Laura Love Rathbun Learning is the best thing to do with your you! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're
11:44 Popular
The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9

713 views / 0 likes - added 5 years ago

•••SUBBABLE MESSAGE••• TO: Carla FROM: Christopher Next stop is whenever. Just be like, "stop." *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if
10:02
Peripheral Nervous System: Crash Course A&P #12

588 views / 2 likes - added 5 years ago

It is now time to meet the system that helps your crazy brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and efferent divisions, how it proc
08:49
Autonomic Nervous System: Crash Course A&P #13

602 views / 1 likes - added 5 years ago

Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences - where ner
14:25
The Big Bang: Crash Course Big History #1

671 views / 2 likes - added 5 years ago

In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the Big Bang, take you right through all of history (recorded and otherwise), and even talk a little
14:37
Exploring the Universe: Crash Course Big History #2

425 views / 0 likes - added 5 years ago

In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen and helium turned into stars, formed galaxies, created heavy
14:33
The Sun&The Earth: Crash Course Big History #3

525 views / 1 likes - added 5 years ago

In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the Solar nebula, the bi
13:29
Life Begins: Crash Course Big History #4

574 views / 0 likes - added 5 years ago

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they dev
13:58
The Modern Revolution: Crash Course Big History #8

455 views / 0 likes - added 5 years ago

In which Hank and John Green teach you a Crash Course on the modern revolution, and the upside of the progress that humanity has made in the last 500 years or so. And while there are two sides to every history, and many of these changes haven't been great
12:20
The Anthropocene and the Near Future: Crash Course Big History #9

439 views / 0 likes - added 5 years ago

In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle, and awesome elect
13:31
The Deep Future: Crash Course Big History #10

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Finally, after what seems like eons and eons, the end is nigh. We're talking not only about the end of Crash Course Big History, but also the end of everything. The end of humanity and the end of the universe.John and Hank Green will teach you about what
13:43
Rethinking Civilization - Crash Course World History 201

409 views / 0 likes - added 5 years ago

In which John Green returns to teaching World History! This week, we'll be talking about the idea of civilization, some of the traditional hallmarks of so-called civilization, and why some people would choose to live outside the civilization model. It tur
14:04
Money&Debt: Crash Course World History 202

584 views / 0 likes - added 5 years ago

In which John Green teaches about filthy, filthy lucre. Money. And Debt. So, what is money? And what is it for? And why do we use money? And why does it all disappear so quickly after payday? John will look into 75% of these questions, and if he doesn't c
11:37
Disease! Crash Course World History 203

580 views / 1 likes - added 5 years ago

In which John Green teaches you about disease, and the effects that disease has had in human history. Disease has been with man since the beginning, and it has shaped the way humans operate in a lot of ways. John will teach you about the Black Death, the
10:37
War&Human Nature: Crash Course World History 204

577 views / 1 likes - added 5 years ago

In which John Green teaches you about war! Specifically, John talks about whether humanity is naturally warlike, hard-wired to kill, or if perhaps war is a cultural construct. John will talk about the Hobbes versus Rousseau debate, the effects that war ha
12:48
War and Civilization: Crash Course World History 205

386 views / 3 likes - added 5 years ago

In which John Green investigates war, and what exactly it may or may not be good for. Was war a result of human beings organizing into larger and more complex agricultural social orders, or did war maybe create agriculture and "civilization?" It's hard to
10:08
Climate Change, Chaos, and The Little Ice Age - Crash Course World History 206

696 views / 1 likes - added 5 years ago

In which John Green teaches you about the Little Ice Age. The Little Ice Age was a period of global cooling that occurred from the 13th to the 19th centuries. This cooling was likely caused by a number of factors, including unusual solar activity and volc
07:21 Popular
Humans and Energy: Crash Course World History 207

720 views / 1 likes - added 5 years ago

In which Stan Muller subs for John Green and teaches you about energy and humanity. Today we discuss the ideas put forth by Alfred Crosby in his book, Children of the Sun. Historically, almost all of the energy that humans use has been directly or indirec
10:30
Drought and Famine: Crash Course World History #208

584 views / 0 likes - added 5 years ago

In which John Green teaches you a little bit about drought, which is a natural weather phenomenon, and famine, which is almost always the result of human activity. Throughout human history, when food shortages strike humanity, there was food around. There
09:10 Popular
HOW World War I Started: Crash Course World History 209

969 views / 6 likes - added 5 years ago

In which John Green teaches you about World War I and how it got started. Crash Course doesn't usually talk much about dates, but the way that things unfolded in July and August of 1914 are kind of important to understanding the Great War. You'll learn ab
10:56 Popular
Who Started World War I: Crash Course World History 210

717 views / 3 likes - added 5 years ago

In which John Green teaches you WHY World War I started. Or tries to anyway. With this kind of thing, it's kind of hard to assign blame to any one of the nations involved. Did the fault lie with Austria-Hungary? Germany? Russia? Julius Caesar? One thing w
12:59
The End of Civilization (In the Bronze Age): Crash Course World History 211

527 views / 1 likes - added 5 years ago

In which John Green teaches you about the Bronze Age civilization in what we today call the middle east, and how the vast, interconnected civilization that encompassed Egypt, The Levant, and Mesopotamia came to an end. What's that you say? There was no su
11:54
The Rise of the West and Historical Methodology: Crash Course World History #212

508 views / 1 likes - added 5 years ago

In which John Green talks about the methods of writing history by looking at some of the ways that history has been written about the rise of the West. But first he has to tell you what the West is. And then he has to explain the Rise of the West. And the
12:55
Asian Responses to Imperialism: Crash Course World History #213

538 views / 0 likes - added 5 years ago

In which John Green teaches you about Imperialism, but not from the perspective of the colonizers. This week John looks at some Asian perspectives on Imperialism, specifically writers from countries that were colonized by European powers. We'll look at th
12:51 Popular
Population, Sustainability, and Malthus: Crash Course World History 215

830 views / 0 likes - added 5 years ago

In which John Green teaches you about population. So, how many people can reasonably live on the Earth? Thomas Malthus got it totally wrong in the 19th century, but for some reason, he keeps coming up when we talk about population. In 1800, the human popu
13:28
Islam and Politics: Crash Course World History 216

594 views / 0 likes - added 5 years ago

In which John Green teaches you about how Islam has interacted with politics during it's history, and how it continues to do so today. Islamist movements are in the news a lot lately, but how did that happen. John will point out that Islam has alway been
11:44
The Mughal Empire and Historical Reputation: Crash Course World History #217

573 views / 0 likes - added 5 years ago

There's a new Crash Course poster with all your favorite World History characters! Czech it: http://store.dftba.com/products/crashcourse-characters-poster In which John Green teaches you about the Mughal Empire, which ruled large swaths of the Indian Sub-
15:07
Luther and the Protestant Reformation: Crash Course World History #218

549 views / 2 likes - added 5 years ago

In which John Green teaches you about the Protestant Reformation. Prior to the Protestant Reformation, pretty much everyone in Europe was a Roman Catholic. Not to get all great man, but Martin Luther changed all that. Martin Luther didn't like the corrupt
11:02 Popular
World War II, A War for Resources: Crash Course World History #220

1,050 views / 9 likes - added 5 years ago

In which John Green teaches you about World War II, and some of the causes behind the war. In a lot of ways, WWII was about resources, and especially about food. The expansionist aggression of both Germany and Japan were in a lot of ways about resources.
11:09
Water and Classical Civilizations: Crash Course World History 222

379 views / 0 likes - added 5 years ago

In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John talks about water i
12:53
Conflict in Israel and Palestine: Crash Course World History 223

425 views / 0 likes - added 5 years ago

In which John Green teaches you about conflict in Israel and Palestine. This conflict is often cast as a long-term beef going back thousands of years, and rooted in a clash between religions. Well, that's not quite true. What is true is that the conflict
11:18
The Vikings! - Crash Course World History 224

621 views / 3 likes - added 5 years ago

In which John Green teaches you about Vikings! That's right, one of our most requested subjects, the Vikings, right here on Crash Course. So what's the deal with Vikings? Well, the stuff you've heard about them may not be true. The Vikings weren't just pa
13:41
Iran's Revolutions: Crash Course World History 226

415 views / 0 likes - added 5 years ago

In which John Green teaches you about Iran's Revolutions. Yes, revolutions plural. What was the1979 Iranian Revolution about? It turns out, Iran has a pretty long history of unrest in order to put power in the hands of the people, and the most recent revo
13:33 Popular
Japan in the Heian Period and Cultural History: Crash Course World History 227

773 views / 7 likes - added 5 years ago

In which John Green teaches you about what westerners call the middle ages and the lives of the aristocracy...in Japan. The Heian period in Japan lasted from 794CE to 1185CE, and it was an interesting time in Japan. Rather than being known for a thriving
10:54
Intro to Psychology - Crash Course Psychology #1

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You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
10:14
The Chemical Mind - Crash Course Psychology #3

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12:34
Meet Your Master: Getting to Know Your Brain - Crash Course Psychology #4

498 views / 0 likes - added 5 years ago

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10:46
Sensation&Perception - Crash Course Psychology #5

488 views / 0 likes - added 5 years ago

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10:24
Homunculus - Crash Course Psychology #6

397 views / 0 likes - added 5 years ago

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10:00
Perceiving is Believing - Crash Course Psychology #7

402 views / 0 likes - added 5 years ago

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09:34
Consciousness - Crash Course Psychology #8

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10:41 Popular
To Sleep, Perchance to Dream - Crash Course Psychology #9

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11:50 Popular
How to Train a Brain - Crash Course Psychology #11

707 views / 0 likes - added 5 years ago

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09:35
The Bobo Beatdown - Crash Course Psychology #12

548 views / 0 likes - added 5 years ago

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09:55
How We Make Memories - Crash Course Psychology #13

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10:18
Remembering and Forgetting - Crash Course Psychology #14

597 views / 1 likes - added 5 years ago

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10:42
Cognition: How Your Mind Can Amaze and Betray You - Crash Course Psychology #15

580 views / 1 likes - added 5 years ago

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10:02
Language: Crash Course Psychology #16

573 views / 0 likes - added 5 years ago

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09:50
The Growth of Knowledge: Crash Course Psychology #18

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11:38
Monkeys and Morality: Crash Course Psychology #19

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10:15
Adolescence: Crash Course Psychology #20

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12:24
Rorschach&Freudians: Crash Course Psychology #21

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11:08
Measuring Personality: Crash Course Psychology #22

596 views / 1 likes - added 5 years ago

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12:39
Controversy of Intelligence: Crash Course Psychology #23

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10:51
Feeling All the Feels: Crash Course Psychology #25

439 views / 1 likes - added 5 years ago

***Subbable Message*** To Robert, Thank you for showing me the world, darling! From Amy and That's happiness; to be dissolved into something complete and great. From Ty Scaletta ****** You can directly support Crash Course at http://www.subbable.com/crash
10:10
Psychological Disorders: Crash Course Psychology #28

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***SUBBABLE MESSAGES*** To: Lola From: Daddy You are the best, I love you. *** To: Future Lia From: Mom and Dad Remember that learning isn't just useful, but also really fun! *** You can directly support Crash Course at http://www.subbable.com/crashcourse
11:32
OCD&Anxiety Disorders: Crash Course Psychology #29

478 views / 0 likes - added 5 years ago

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