Online courses directory (381)

Volume under a surface with double integrals. Triple integrals as well. Double Integral 1. Double Integrals 2. Double Integrals 3. Double Integrals 4. Double Integrals 5. Double Integrals 6. Triple Integrals 1. Triple Integrals 2. Triple Integrals 3. Double Integral 1. Double Integrals 2. Double Integrals 3. Double Integrals 4. Double Integrals 5. Double Integrals 6. Triple Integrals 1. Triple Integrals 2. Triple Integrals 3.

Humans have been making art for tens of thousands of years, long before there was writing. Why was Egyptian art obsessed with death? Why did the ancient Greeks seek the perfect human form? How did the ancient Romans use art as state propaganda? Why was the naturalism of ancient Greek and Roman art abandoned with the rise of Christianity? This topic explores the art of the ancient world, from the Venus of Willendorf to a 6th-Century Chinese Bodhisattva. Prehistoric Art: Paleolithic Origins. Nude Woman (Venus of Willendorf). The Neolithic Revolution. Jade Cong. Prehistory: Proto-writing. Prehistoric Art Quiz. Introduction. Ancient History: The Alphabet. Sumerian Art: Standard of Ur. Sumerian Art: Great Lyre from the "King's Grave" at Ur. Akkadian Art: Victory Stele of Naram-Sin. Babylonian Art: Law Code Stele of King Hammurabi. Ashurbanipal Hunting Lions (Assyrian). Assyrian Art: Human Headed Winged Lion and Bull (Lamassu). Neo-Babylonian Art: Ishtar Gate and Processional Way. Ancient Near Eastern Art. Introduction. Egyptian Art. Materials & Techniques. Ancient Near Eastern & Ancient Egyptian Art. Old Kingdom: Seated Scribe. New Kingdom: House Altar with Akhenaten, Nefertiti and Three Daughters. Portrait Head of Queen Tiye with a Crown of Two Feathers. New Kingdom: Thutmose's Bust of Nefertiti. Judgement in the Presence of Osiris, Hunefer's Book of the Dead. New Kingdom: Ramesses II. Ptolemaic: Rosetta Stone. Ancient Egypt. Ancient Greece and Rome. Ancient Greek and Roman Art. Geometric: Terracotta Krater. Archaic: Exekias, Attic black figure amphora with Ajax and Achilles playing a game. Archaic: Exekias, Dionysos Kylix, c. 530 B.C.E.. Archaic: Mixing Vessel with Odysseus Escaping from the Cyclops's Cave. Archaic: New York Kouros. The Classical Orders. Archaic and Early Classical: Ancient Greek Temples at Paestum, Italy. Archaic and Early Classical: East and West Pediments, Temple of Aphaia, Aegina. Early Classical: Polykleitos, Doryphoros (Spear-Bearer). Classical: Myron, Discobolus (Discus Thrower), Roman copy of an ancient Greek bronze. Classical: Parthenon Frieze. Classical: Sculpture from the Parthenon's East Pediment. Classical: Parthenon Metopes. Classical: Caryatid and Column from the Erechtheion. Late Classical: Lysippos, Farnese Hercules, 4th century B.C.E. (later Roman copy by Glycon). Late Classical: Lysippos, Apoxyomenos (Scraper), c. 330 B.C.E. (Roman copy). Late Classical: After Praxiteles, Venus (Roman Copy). Hellenistic: Barberini Faun. Hellenistic: Dying Gaul. Hellenistic: Nike of Samothrace. Hellenistic: The Pergamon Altar. Hellenistic: Apollonius, Boxer at Rest. Hellenistic: Alexander Mosaic. Hellenistic: Laoco

Trigonometry Identity Review/Fun. Trigonometric Identities. Examples using Pythagorean identities to simplify trigonometric expressions. Pythagorean identities. Proof: sin(a+b) = (cos a)(sin b) + (sin a)(cos b). Proof: cos(a+b) = (cos a)(cos b)-(sin a)(sin b). Trig identities part 2 (part 4 if you watch the proofs). Trig identies part 3 (part 5 if you watch the proofs). Cosine addition identity example. Double angle formula for cosine example. Addition and subtraction trig identities. Navigation Word Problem. Fun Trig Problem. IIT JEE Trigonometry Problem 1. IIT JEE Trigonometric Maximum. IIT JEE Trigonometric Constraints. Trigonometric System Example. 2003 AIME II Problem 11. 2003 AIME II Problem 14. Trigonometry word problems (part 1). Trigonometry word problems (part 2). Ferris Wheel Trig Problem. Ferris Wheel Trig Problem (part 2). Law of cosines example. Proof of the law of cosines. Law of cosines. Proof: Law of Sines. Trigonometry Identity Review/Fun. Trigonometric Identities. Examples using Pythagorean identities to simplify trigonometric expressions. Pythagorean identities. Proof: sin(a+b) = (cos a)(sin b) + (sin a)(cos b). Proof: cos(a+b) = (cos a)(cos b)-(sin a)(sin b). Trig identities part 2 (part 4 if you watch the proofs). Trig identies part 3 (part 5 if you watch the proofs). Cosine addition identity example. Double angle formula for cosine example. Addition and subtraction trig identities. Navigation Word Problem. Fun Trig Problem. IIT JEE Trigonometry Problem 1. IIT JEE Trigonometric Maximum. IIT JEE Trigonometric Constraints. Trigonometric System Example. 2003 AIME II Problem 11. 2003 AIME II Problem 14. Trigonometry word problems (part 1). Trigonometry word problems (part 2). Ferris Wheel Trig Problem. Ferris Wheel Trig Problem (part 2). Law of cosines example. Proof of the law of cosines. Law of cosines. Proof: Law of Sines.

Sample questions from the A.P. Calculus AB and BC exams (both multiple choice and free answer). 2011 Calculus AB Free Response #1a. 2011 Calculus AB Free Response #1 parts b c d. 2011 Calculus AB Free Response #2 (a & b). 2011 Calculus AB Free Response #2 (c & d). 2011 Calculus AB Free Response #3 (a & b). 2011 Calculus AB Free Response #3 (c). 2011 Calculus AB Free Response #4a. 2011 Calculus AB Free Response #4b. 2011 Calculus AB Free Response #4c. 2011 Calculus AB Free Response #4d. 2011 Calculus AB Free Response #5a. 2011 Calculus AB Free Response #5b. 2011 Calculus AB Free Response #5c.. 2011 Calculus AB Free Response #6a. 2011 Calculus AB Free Response #6b. 2011 Calculus AB Free Response #6c. AP Calculus BC Exams: 2008 1 a. AP Calculus BC Exams: 2008 1 b&c. AP Calculus BC Exams: 2008 1 c&d. AP Calculus BC Exams: 2008 1 d. Calculus BC 2008 2 a. Calculus BC 2008 2 b &c. Calculus BC 2008 2d. 2011 Calculus BC Free Response #1a. 2011 Calculus BC Free Response #1 (b & c). 2011 Calculus BC Free Response #1d. 2011 Calculus BC Free Response #3a. 2011 Calculus BC Free Response #3 (b & c). 2011 Calculus BC Free Response #6a. 2011 Calculus BC Free Response #6b. 2011 Calculus BC Free Response #6c. 2011 Calculus BC Free Response #6d. 2011 Calculus AB Free Response #1a. 2011 Calculus AB Free Response #1 parts b c d. 2011 Calculus AB Free Response #2 (a & b). 2011 Calculus AB Free Response #2 (c & d). 2011 Calculus AB Free Response #3 (a & b). 2011 Calculus AB Free Response #3 (c). 2011 Calculus AB Free Response #4a. 2011 Calculus AB Free Response #4b. 2011 Calculus AB Free Response #4c. 2011 Calculus AB Free Response #4d. 2011 Calculus AB Free Response #5a. 2011 Calculus AB Free Response #5b. 2011 Calculus AB Free Response #5c.. 2011 Calculus AB Free Response #6a. 2011 Calculus AB Free Response #6b. 2011 Calculus AB Free Response #6c. AP Calculus BC Exams: 2008 1 a. AP Calculus BC Exams: 2008 1 b&c. AP Calculus BC Exams: 2008 1 c&d. AP Calculus BC Exams: 2008 1 d. Calculus BC 2008 2 a. Calculus BC 2008 2 b &c. Calculus BC 2008 2d. 2011 Calculus BC Free Response #1a. 2011 Calculus BC Free Response #1 (b & c). 2011 Calculus BC Free Response #1d. 2011 Calculus BC Free Response #3a. 2011 Calculus BC Free Response #3 (b & c). 2011 Calculus BC Free Response #6a. 2011 Calculus BC Free Response #6b. 2011 Calculus BC Free Response #6c. 2011 Calculus BC Free Response #6d.

Things in our universe can be unimaginably large and small. In this topic, we'll try to imagine the unimaginable!. Scale of the Large. Scale of the Small. Introduction to Light. Four Fundamental Forces. Scale of Earth and Sun. Scale of Solar System. Scale of Distance to Closest Stars. Scale of the Galaxy. Intergalactic Scale. Hubble Image of Galaxies. Cosmological Time Scale 1. Cosmological Time Scale 2. Big Bang Introduction. Radius of Observable Universe. (Correction) Radius of Observable Universe. Red Shift. Cosmic Background Radiation. Cosmic Background Radiation 2. Hubble's Law. A Universe Smaller than the Observable. Scale of the Large. Scale of the Small. Introduction to Light. Four Fundamental Forces. Scale of Earth and Sun. Scale of Solar System. Scale of Distance to Closest Stars. Scale of the Galaxy. Intergalactic Scale. Hubble Image of Galaxies. Cosmological Time Scale 1. Cosmological Time Scale 2. Big Bang Introduction. Radius of Observable Universe. (Correction) Radius of Observable Universe. Red Shift. Cosmic Background Radiation. Cosmic Background Radiation 2. Hubble's Law. A Universe Smaller than the Observable.

Consumption function. Marginal propensity to consume and multiplier. Keynesian Cross and IS-LM model. MPC and Multiplier. Mathy Version of MPC and Multiplier (optional). Consumption Function Basics. Generalized Linear Consumption Function. Consumption Function with Income Dependent Taxes. Keynesian Cross. Details on Shifting Aggregate Planned Expenditures. Keynesian Cross and the Multiplier. Investment and Real Interest Rates. Connecting the Keynesian Cross to the IS-Curve. Loanable Funds Interpretation of IS Curve. LM part of the IS-LM model. Government Spending and the IS-LM model. MPC and Multiplier. Mathy Version of MPC and Multiplier (optional). Consumption Function Basics. Generalized Linear Consumption Function. Consumption Function with Income Dependent Taxes. Keynesian Cross. Details on Shifting Aggregate Planned Expenditures. Keynesian Cross and the Multiplier. Investment and Real Interest Rates. Connecting the Keynesian Cross to the IS-Curve. Loanable Funds Interpretation of IS Curve. LM part of the IS-LM model. Government Spending and the IS-LM model.

Balance of payments. Current account. Capital account. Currency reserves and speculative attacks. Balance of Payments- Current Account. Balance of Payments- Capital Account. Why Current and Capital Accounts Net Out. Accumulating Foreign Currency Reserves. Using Reserves to Stabilize Currency. Speculative Attack on a Currency. Financial Crisis in Thailand Caused by Speculative Attack. Math Mechanics of Thai Banking Crisis. Balance of Payments- Current Account. Balance of Payments- Capital Account. Why Current and Capital Accounts Net Out. Accumulating Foreign Currency Reserves. Using Reserves to Stabilize Currency. Speculative Attack on a Currency. Financial Crisis in Thailand Caused by Speculative Attack. Math Mechanics of Thai Banking Crisis.

Find out what's inside of blood. What's Inside of Blood?. Hemoglobin moves O2 and CO2. Bohr Effect vs. Haldane Effect. Fetal Hemoglobin and Hematocrit. Oxygen Content. What's Inside of Blood?. Hemoglobin moves O2 and CO2. Bohr Effect vs. Haldane Effect. Fetal Hemoglobin and Hematocrit. Oxygen Content.

Check out the flow of positive charge through the heart that happens every time your heart beats! Learn how the heart is able to keep a regular rate and rhythm throughout your life. Membrane Potentials - Part 1. Membrane Potentials - Part 2. Permeability and Membrane Potentials. Action Potentials in Pacemaker Cells. Action Potentials in Cardiac Myocytes. Reseting Cardiac Concentration Gradients. Electrical System of the Heart. Depolarization Waves Flowing through the Heart. A Race to Keep Pace!. Thinking about Heartbeats. New Perspective on the Heart. Membrane Potentials - Part 1. Membrane Potentials - Part 2. Permeability and Membrane Potentials. Action Potentials in Pacemaker Cells. Action Potentials in Cardiac Myocytes. Reseting Cardiac Concentration Gradients. Electrical System of the Heart. Depolarization Waves Flowing through the Heart. A Race to Keep Pace!. Thinking about Heartbeats. New Perspective on the Heart.

Thinking about forms of derivatives in multi-dimensions and for vector-valued functions: partial derivatives, gradient, divergence and curl. Partial Derivatives. Partial Derivatives 2. Gradient 1. Gradient of a scalar field. Divergence 1. Divergence 2. Divergence 3. Curl 1. Curl 2. Curl 3. Partial Derivatives. Partial Derivatives 2. Gradient 1. Gradient of a scalar field. Divergence 1. Divergence 2. Divergence 3. Curl 1. Curl 2. Curl 3.

Line integral of scalar and vector-valued functions. Green's theorem and 2-D divergence theorem. Introduction to the Line Integral. Line Integral Example 1. Line Integral Example 2 (part 1). Line Integral Example 2 (part 2). Position Vector Valued Functions. Derivative of a position vector valued function. Differential of a vector valued function. Vector valued function derivative example. Line Integrals and Vector Fields. Using a line integral to find the work done by a vector field example. Parametrization of a Reverse Path. Scalar Field Line Integral Independent of Path Direction. Vector Field Line Integrals Dependent on Path Direction. Path Independence for Line Integrals. Closed Curve Line Integrals of Conservative Vector Fields. Example of Closed Line Integral of Conservative Field. Second Example of Line Integral of Conservative Vector Field. Green's Theorem Proof Part 1. Green's Theorem Proof (part 2). Green's Theorem Example 1. Green's Theorem Example 2. Constructing a unit normal vector to a curve. 2 D Divergence Theorem. Conceptual clarification for 2-D Divergence Theorem. Introduction to the Line Integral. Line Integral Example 1. Line Integral Example 2 (part 1). Line Integral Example 2 (part 2). Position Vector Valued Functions. Derivative of a position vector valued function. Differential of a vector valued function. Vector valued function derivative example. Line Integrals and Vector Fields. Using a line integral to find the work done by a vector field example. Parametrization of a Reverse Path. Scalar Field Line Integral Independent of Path Direction. Vector Field Line Integrals Dependent on Path Direction. Path Independence for Line Integrals. Closed Curve Line Integrals of Conservative Vector Fields. Example of Closed Line Integral of Conservative Field. Second Example of Line Integral of Conservative Vector Field. Green's Theorem Proof Part 1. Green's Theorem Proof (part 2). Green's Theorem Example 1. Green's Theorem Example 2. Constructing a unit normal vector to a curve. 2 D Divergence Theorem. Conceptual clarification for 2-D Divergence Theorem.

Overview of how to set up accounts for students under 13 and 13+, how to add a coach on Khan Academy, and how to separate students into class lists. For more information on getting started and technology needs, check out http://www.khanacademy.org/toolkit/getting-started. Creating Khan Academy accounts for users ages 13+. Creating Khan Academy accounts for users under age 13. Adding a coach and creating class lists on Khan Academy. How to delete a student or class list. How to add a coach on Khan Academy. Creating Khan Academy accounts for users ages 13+. Creating Khan Academy accounts for users under age 13. Adding a coach and creating class lists on Khan Academy. How to delete a student or class list. How to add a coach on Khan Academy.

Overview of some of the ways to use Khan Academy. For more information, including worksheets to help plan the first day and month with Khan Academy, check out http://www.khanacademy.org/toolkit/classroom-uses. . Easiest Way. Station Rotation. Learning Lab. Interactive Classroom. Using class time. Easiest Way. Station Rotation. Learning Lab. Interactive Classroom. Using class time.

Differential equations with only first derivatives. What is a differential equation. Simple Differential Equations. Separable Differential Equations. Separable differential equations 2. Exact Equations Intuition 1 (proofy). Exact Equations Intuition 2 (proofy). Exact Equations Example 1. Exact Equations Example 2. Exact Equations Example 3. Integrating factors 1. Integrating factors 2. First order homegenous equations. First order homogeneous equations 2. What is a differential equation. Simple Differential Equations. Separable Differential Equations. Separable differential equations 2. Exact Equations Intuition 1 (proofy). Exact Equations Intuition 2 (proofy). Exact Equations Example 1. Exact Equations Example 2. Exact Equations Example 3. Integrating factors 1. Integrating factors 2. First order homegenous equations. First order homogeneous equations 2.

Linear differential equations that contain second derivatives. 2nd Order Linear Homogeneous Differential Equations 1. 2nd Order Linear Homogeneous Differential Equations 2. 2nd Order Linear Homogeneous Differential Equations 3. 2nd Order Linear Homogeneous Differential Equations 4. Complex roots of the characteristic equations 1. Complex roots of the characteristic equations 2. Complex roots of the characteristic equations 3. Repeated roots of the characteristic equation. Repeated roots of the characteristic equations part 2. Undetermined Coefficients 1. Undetermined Coefficients 2. Undetermined Coefficients 3. Undetermined Coefficients 4. 2nd Order Linear Homogeneous Differential Equations 1. 2nd Order Linear Homogeneous Differential Equations 2. 2nd Order Linear Homogeneous Differential Equations 3. 2nd Order Linear Homogeneous Differential Equations 4. Complex roots of the characteristic equations 1. Complex roots of the characteristic equations 2. Complex roots of the characteristic equations 3. Repeated roots of the characteristic equation. Repeated roots of the characteristic equations part 2. Undetermined Coefficients 1. Undetermined Coefficients 2. Undetermined Coefficients 3. Undetermined Coefficients 4.

Transforms and the Laplace transform in particular. Convolution integrals. Laplace Transform 1. Laplace Transform 2. L{sin(at)}) - transform of sin(at). Part 2 of the transform of the sin(at). Laplace as linear operator and Laplace of derivatives. Laplace Transform of cos t and polynomials. "Shifting" transform by multiplying function by exponential. Laplace Transform of : L{t}. Laplace Transform of t^n: L{t^n}. Laplace Transform of the Unit Step Function. Inverse Laplace Examples. Dirac Delta Function. Laplace Transform of the Dirac Delta Function. Laplace Transform to solve an equation. Laplace Transform solves an equation 2. Using the Laplace Transform to solve a nonhomogeneous eq. Laplace/Step Function Differential Equation. Introduction to the Convolution. The Convolution and the Laplace Transform. Using the Convolution Theorem to Solve an Initial Value Prob. Laplace Transform 1. Laplace Transform 2. L{sin(at)}) - transform of sin(at). Part 2 of the transform of the sin(at). Laplace as linear operator and Laplace of derivatives. Laplace Transform of cos t and polynomials. "Shifting" transform by multiplying function by exponential. Laplace Transform of : L{t}. Laplace Transform of t^n: L{t^n}. Laplace Transform of the Unit Step Function. Inverse Laplace Examples. Dirac Delta Function. Laplace Transform of the Dirac Delta Function. Laplace Transform to solve an equation. Laplace Transform solves an equation 2. Using the Laplace Transform to solve a nonhomogeneous eq. Laplace/Step Function Differential Equation. Introduction to the Convolution. The Convolution and the Laplace Transform. Using the Convolution Theorem to Solve an Initial Value Prob.

Introduction to Compound Interest. The Rule of 72 for Compound Interest. Introduction to interest. Interest (part 2). Annual Percentage Rate (APR) and Effective APR. Institutional Roles in Issuing and Processing Credit Cards. Payday Loans. Introduction to compound interest and e. Compound Interest and e (part 2). Compound Interest and e (part 3). Compound Interest and e (part 4). Time Value of Money. Introduction to Present Value. Present Value 2. Present Value 3. Present Value 4 (and discounted cash flow). Personal Bankruptcy: Chapters 7 and 13. Introduction to Compound Interest. The Rule of 72 for Compound Interest. Introduction to interest. Interest (part 2). Annual Percentage Rate (APR) and Effective APR. Institutional Roles in Issuing and Processing Credit Cards. Payday Loans. Introduction to compound interest and e. Compound Interest and e (part 2). Compound Interest and e (part 3). Compound Interest and e (part 4). Time Value of Money. Introduction to Present Value. Present Value 2. Present Value 3. Present Value 4 (and discounted cash flow). Personal Bankruptcy: Chapters 7 and 13.

Introduction to Balance Sheets. More on balance sheets and equity. Home equity loans. Introduction to Mortgage Loans. Mortgage Interest Rates. Short sale basics. Advanced: Geometric series sum to figure out mortgage payments. Renting vs. Buying a home. Renting vs. buying a home (part 2). Renting vs. Buying (detailed analysis). The housing price conundrum. Housing price conundrum (part 2). Housing Price Conundrum (part 3). Housing Conundrum (part 4). The housing price conundrum. Housing price conundrum (part 2). Housing Price Conundrum (part 3). Housing Conundrum (part 4). Mortgage-Backed Securities I. Mortgage-backed securities II. Mortgage-backed securities III. Collateralized Debt Obligation (CDO). Credit Default Swaps. Credit Default Swaps 2. Wealth Destruction 1. Wealth Destruction 2. CNN: Understanding the Crisis. Bailout 1: Liquidity vs. Solvency. Bailout 2: Book Value. Bailout 3: Book value vs. market value. Bailout 4: Mark-to-model vs. mark-to-market. Bailout 5: Paying off the debt. Bailout 6: Getting an equity infusion. Bailout 7: Bank goes into bankruptcy. Bailout 8: Systemic Risk. Bailout 9: Paulson's Plan. Bailout 10: Moral Hazard. Bailout 11: Why these CDOs could be worth nothing. Bailout 12: Lone Star Transaction. Bailout 13: Does the bailout have a chance of working?. Bailout 14: Possible Solution. Bailout 15: More on the solution. Risk and Reward Introduction. Human Capital. Return on capital. Investment vs. Consumption 1. Investment vs. Consumption 2. Wealth Destruction 1. Wealth Destruction 2. Back of Envelope Office Space Conundrum. Introduction to Balance Sheets. More on balance sheets and equity. Home equity loans. Introduction to Mortgage Loans. Mortgage Interest Rates. Short sale basics. Advanced: Geometric series sum to figure out mortgage payments. Renting vs. Buying a home. Renting vs. buying a home (part 2). Renting vs. Buying (detailed analysis). The housing price conundrum. Housing price conundrum (part 2). Housing Price Conundrum (part 3). Housing Conundrum (part 4). The housing price conundrum. Housing price conundrum (part 2). Housing Price Conundrum (part 3). Housing Conundrum (part 4). Mortgage-Backed Securities I. Mortgage-backed securities II. Mortgage-backed securities III. Collateralized Debt Obligation (CDO). Credit Default Swaps. Credit Default Swaps 2. Wealth Destruction 1. Wealth Destruction 2. CNN: Understanding the Crisis. Bailout 1: Liquidity vs. Solvency. Bailout 2: Book Value. Bailout 3: Book value vs. market value. Bailout 4: Mark-to-model vs. mark-to-market. Bailout 5: Paying off the debt. Bailout 6: Getting an equity infusion. Bailout 7: Bank goes into bankruptcy. Bailout 8: Systemic Risk. Bailout 9: Paulson's Plan. Bailout 10: Moral Hazard. Bailout 11: Why these CDOs could be worth nothing. Bailout 12: Lone Star Transaction. Bailout 13: Does the bailout have a chance of working?. Bailout 14: Possible Solution. Bailout 15: More on the solution. Risk and Reward Introduction. Human Capital. Return on capital. Investment vs. Consumption 1. Investment vs. Consumption 2. Wealth Destruction 1. Wealth Destruction 2. Back of Envelope Office Space Conundrum.

Inflation Overview. What is Inflation. Inflation Data. CPI Index. Moderate Inflation in a Good Economy. Stagflation. Hyperinflation. Real and Nominal Return. Calculating Real Return in Last Year Dollars. Relation Between Nominal and Real Returns and Inflation. Economics of a Cupcake Factory. Cupcake Economics 2. Cupcake Economics 3. Inflation, Deflation & Capacity Utilization. Inflation, Deflation & Capacity Utilization 2. Inflation & Deflation 3: Obama Stimulus Plan. Deflation. Velocity of Money Rather than Quantity Driving Prices. Deflation Despite Increases in Money Supply. Deflationary Spiral. Inflation Overview. What is Inflation. Inflation Data. CPI Index. Moderate Inflation in a Good Economy. Stagflation. Hyperinflation. Real and Nominal Return. Calculating Real Return in Last Year Dollars. Relation Between Nominal and Real Returns and Inflation. Economics of a Cupcake Factory. Cupcake Economics 2. Cupcake Economics 3. Inflation, Deflation & Capacity Utilization. Inflation, Deflation & Capacity Utilization 2. Inflation & Deflation 3: Obama Stimulus Plan. Deflation. Velocity of Money Rather than Quantity Driving Prices. Deflation Despite Increases in Money Supply. Deflationary Spiral.