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  • 13:19 Plate Tectonics -- Evidence of plate movement

    Plate Tectonics -- Evidence of plate movement

    / 520 views

    Plate Tectonics -- Evidence of plate movement More free lessons at: http://www.khanacademy.org/video?v=6EdsBabSZ4g

  • 10:08 Earth Formation

    Earth Formation

    / 455 views

    How the Earth is a the byproduct of a local supernova More free lessons at: http://www.khanacademy.org/video?v=VbNXh0GaLYo

  • 08:13 Why Gravity Gets So Strong Near Dense Objects

    Why Gravity Gets So Strong Near Dense Objects

    / 273 views

    Why Gravity Gets So Strong Near Dense Objects More free lessons at: http://www.khanacademy.org/video?v=RpOHZc6cDIw

  • 18:59 Diffusion and Osmosis

    Diffusion and Osmosis

    / 255 views

    Diffusion and Osmosis More free lessons at: http://www.khanacademy.org/video?v=aubZU0iWtgI

  • 10:09 Black Holes

    Black Holes

    / 578 views

    Black Holes More free lessons at: http://www.khanacademy.org/video?v=JoL2pO3O0rg

  • 11:10 Electoral College

    Electoral College

    / 311 views

    How we elect our President in the United States More free lessons at: http://www.khanacademy.org/video?v=oTbvYGH_Hiw

  • 18:38 The Kidney and Nephron

    The Kidney and Nephron

    / 257 views

    Overview of how the nephrons in the kidney filter blood and reabsorb water and other molecules. More free lessons at: http://www.khanacademy.org/video?v=cc8sUv2SuaY

  • 11:12 Hubble's Law

    Hubble's Law

    / 478 views

    Hubble's Law More free lessons at: http://www.khanacademy.org/video?v=1V9wVmO0Tfg

    Featured
  • 12:26 Human Evolution Overview

    Human Evolution Overview

    / 453 views

    From the extinction of the dinosaurs to humanity More free lessons at: http://www.khanacademy.org/video?v=frE1rjhH77Y

  • 10:03 Carbon 14 Dating 1

    Carbon 14 Dating 1

    / 427 views

    Carbon 14 Dating 1 More free lessons at: http://www.khanacademy.org/video?v=8wYvKeSK1IY

  • 09:23 Proof by Induction

    Proof by Induction

    / 311 views

    Proving an expression for the sum of all positive integers up to and including n by induction More free lessons at: http://www.khanacademy.org/video?v=wblW_M_HVQ8

  • 06:38 Firestick Farming

    Firestick Farming

    / 389 views

    How the indigenous Australians used fire to change their environment More free lessons at: http://www.khanacademy.org/video?v=mwUyaeWxJhA

  • 11:15 Logarithmic Scale

    Logarithmic Scale

    / 252 views

    Understanding how logarithmic scale is different from linear scale and why it could be useful More free lessons at: http://www.khanacademy.org/video?v=sBhEi4L91Sg

  • 11:20 Richter Scale

    Richter Scale

    / 400 views

    The basics of the logarithmic Richter and Moment Magnitude Scales to measure earthquakes More free lessons at: http://www.khanacademy.org/video?v=RFn-IGlayAg

  • 09:17 Basic Trigonometry

    Basic Trigonometry

    / 376 views

    Introduction to trigonometry More free lessons at: http://www.khanacademy.org/video?v=Jsiy4TxgIME

  • 10:43 Addition Rule for Probability

    Addition Rule for Probability

    / 358 views

    Venn diagrams and the addition rule for probability More free lessons at: http://www.khanacademy.org/video?v=QE2uR6Z-NcU

  • 09:33 Newton's First Law of Motion

    Newton's First Law of Motion

    / 362 views

    Newton's First Law (Galileo's Law of Inertia). More free lessons at: http://www.khanacademy.org/video?v=CQYELiTtUs8

  • 03:15 US and Japanese Quantitative Easing

    US and Japanese Quantitative Easing

    / 271 views

    Comparing quantitative easing in Japan to "credit easing" in the United States More free lessons at: http://www.khanacademy.org/video?v=a-R8qpea6lc

  • 09:37 Introduction to Light

    Introduction to Light

    / 259 views

    Light and electromagnetic radiation More free lessons at: http://www.khanacademy.org/video?v=rLNM8zI4Q_M

  • 09:31 Scale of Earth and  Sun

    Scale of Earth and Sun

    / 377 views

    Scale of Earth and Sun More free lessons at: http://www.khanacademy.org/video?v=GZx3U0dbASg

  • 07:31 FICA Tax

    FICA Tax

    / 236 views

    How the FICA tax is calculated and what it stands for More free lessons at: http://www.khanacademy.org/video?v=UP9xy2eVj7s

  • 06:30 Social Security Intro

    Social Security Intro

    / 308 views

    Basics on how social security works More free lessons at: http://www.khanacademy.org/video?v=gLHUCUv1e5Y

  • 09:57 Deficit and Debt Ceiling

    Deficit and Debt Ceiling

    / 351 views

    Basic of the deficit, debt and debt ceiling More free lessons at: http://www.khanacademy.org/video?v=-05OfTp6ZEE

  • 08:13 Primaries and Caucuses

    Primaries and Caucuses

    / 237 views

    How states choose their delegates for the national party conventions (under CC-BY-SA license) More free lessons at: http://www.khanacademy.org/video?v=z_QeYCg4yJ8

  • 13:14 Scale of the Small

    Scale of the Small

    / 373 views

    From honey bees to cells, virus, and atoms -- understanding the scale of the very small More free lessons at: http://www.khanacademy.org/video?v=ERKx3Oa2omo

  • 13:09 Elements and Atoms

    Elements and Atoms

    / 494 views

    How elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom. More free lessons at: http://www.khanacademy.org/video?v=IFKnq9QM6_A

  • 11:34 Systemic Thinking About Cancer

    Systemic Thinking About Cancer

    / 357 views

    Dr. David Agus discusses thinking systemically about cancer and other things More free lessons at: http://www.khanacademy.org/video?v=7zk0ubr_lzo

  • 03:34 Galactic Collisions

    Galactic Collisions

    / 253 views

    Collision of the Milky Way Galaxy with Andromeda (forming "Milkomeda") More free lessons at: http://www.khanacademy.org/video?v=QXYbGZ3T3_k

  • 09:12 Koch Snowflake Fractal

    Koch Snowflake Fractal

    / 395 views

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

  • 04:03 Carry Trade Basics

    Carry Trade Basics

    / 383 views

    The mechanics of the carry trade More free lessons at: http://www.khanacademy.org/video?v=8In5PK1yUAA

  • 14:42 The Golden Ratio

    The Golden Ratio

    / 349 views

    An introduction to one of the most amazing ideas/numbers in mathematics More free lessons at: http://www.khanacademy.org/video?v=5zosU6XTgSY

  • 07:12 Gravity for Astronauts in Orbit

    Gravity for Astronauts in Orbit

    / 320 views

    Why do astronauts appear weightless despite being near the Earth? More free lessons at: http://www.khanacademy.org/video?v=oIZV-ixRTcY

  • 06:01 Visualizing Taylor Series Approximations

    Visualizing Taylor Series Approximations

    / 377 views

    Using Wolfram Alpha to approximate sin(x) More free lessons at: http://www.khanacademy.org/video?v=8dMLK2Wueaw

  • 20:47 How Earth's Tilt Causes Seasons

    How Earth's Tilt Causes Seasons

    / 380 views

    How being Earth's tilt causes seasons More free lessons at: http://www.khanacademy.org/video?v=05qDIjKevJo

  • 07:22 Vitamin C and the Limeys

    Vitamin C and the Limeys

    / 308 views

    Sal and Dr. David Agus talk about the history of Scurvy and Vitamin C

  • 11:15 Popular SOPA and PIPA

    SOPA and PIPA

    / 1,039 views

    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

  • 10:07 The Beauty of Algebra

    The Beauty of Algebra

    / 284 views

    Why the abstraction of mathematics is so fundamental More free lessons at: http://www.khanacademy.org/video?v=kpCJyQ2usJ4

  • 14:18 Mortgage Interest Rates

    Mortgage Interest Rates

    / 315 views

    Overview of the main types of mortgages and rates More free lessons at: http://www.khanacademy.org/video?v=vy_pvstdBhg

  • 09:01 Inflation Overview

    Inflation Overview

    / 360 views

    Overview of price inflation and how it is calculated More free lessons at: http://www.khanacademy.org/video?v=-Z5kkfrEc8I

  • 08:17 Time Value of Money

    Time Value of Money

    / 273 views

    Overview of the time value, present value and future value of money More free lessons at: http://www.khanacademy.org/video?v=733mgqrzNKs

  • 09:00 401(k)-

    401(k)-

    / 321 views

    401(k)s (and how they compare to IRAs) More free lessons at: http://www.khanacademy.org/video?v=2zfdtmlMNDs

  • 07:12 Annual Percentage Rate (APR) and effective APR

    Annual Percentage Rate (APR) and effective APR

    / 256 views

    The difference between APR and effective APR More free lessons at: http://www.khanacademy.org/video?v=RuPMsK0mQC8

  • 04:08 Basics of US income tax rate schedule

    Basics of US income tax rate schedule

    / 257 views

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

  • 05:12 Basics of estate tax

    Basics of estate tax

    / 247 views

    Overview of the inheritance tax

  • 11:41 Institutional roles in issuing and processing credit cards

    Institutional roles in issuing and processing credit cards

    / 294 views

    The institutions involved in processing your credit credit and how they relate to each other More free lessons at: http://www.khanacademy.org/video?v=IPxQQNyCxas

  • 08:42 Introduction to bonds

    Introduction to bonds

    / 287 views

    What it means to buy a bond More free lessons at: http://www.khanacademy.org/video?v=Qh-M3_L4xYk

  • 06:38 Introduction to compound interest

    Introduction to compound interest

    / 238 views

    Introduction to compound interest More free lessons at: http://www.khanacademy.org/video?v=Rm6UdfRs3gw

  • 18:27 Introduction to mortgage loans

    Introduction to mortgage loans

    / 244 views

    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

  • 09:39 Open-ended mutual funds

    Open-ended mutual funds

    / 233 views

    Mutual fund basics More free lessons at: http://www.khanacademy.org/video?v=zqRxV9ICn4I

  • 13:04 Personal bankruptcy - Chapters 7 and 13

    Personal bankruptcy - Chapters 7 and 13

    / 225 views

    What is bankruptcy? More free lessons at: http://www.khanacademy.org/video?v=H3tg4bH5JuY

  • 13:16 Relationship between bond prices and interest rates

    Relationship between bond prices and interest rates

    / 258 views

    Why bond prices move inversely to changes in interest rate More free lessons at: http://www.khanacademy.org/video?v=I7FDx4DPapw

  • 16:30 Roth IRAs

    Roth IRAs

    / 286 views

    Overview of what a Roth IRA is. More free lessons at: http://www.khanacademy.org/video?v=th06SCNNZ60

  • 09:11 The rule of 72 for compound interest

    The rule of 72 for compound interest

    / 237 views

    Using the rule of 72 to approximate how long it will take for an investment to compound More free lessons at: http://www.khanacademy.org/video?v=mec-QpjQMXY

  • 13:24 Traditional IRAs

    Traditional IRAs

    / 355 views

    Overview of a traditional IRA More free lessons at: http://www.khanacademy.org/video?v=UV8kgqk_DAY

  • 09:47 Primer on the unemployment rate

    Primer on the unemployment rate

    / 236 views

    Understanding how the headline unemployment rate (U-3) is calculated More free lessons at: http://www.khanacademy.org/video?v=C9onjpQGpSg

  • 13:47 What it means to buy a company's stock

    What it means to buy a company's stock

    / 252 views

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

  • 14:34 Health Care Costs in US vs Europe

    Health Care Costs in US vs Europe

    / 377 views

    A discussion about US health care costs More free lessons at: http://www.khanacademy.org/video?v=6YU9HVS2GT0

  • 13:33 Conversation About Drug Pricing

    Conversation About Drug Pricing

    / 297 views

    Dr. Lauwrence Baker talks to Sal about how drug prices are set More free lessons at: http://www.khanacademy.org/video?v=8t-Un7yH99g

  • 10:05 Blue Cross and Blue Shield

    Blue Cross and Blue Shield

    / 376 views

    Sal and Dr. Baker talk a bit about Blue Cross and Blue Shield More free lessons at: http://www.khanacademy.org/video?v=S9xdJgPWO-w

  • 09:09 Inflammation

    Inflammation

    / 299 views

    Dr. David Agus talks about inflammation (while Sal repeatedly misspells it with one "m") More free lessons at: http://www.khanacademy.org/video?v=GZ6I3T1RAnQ

  • 12:36 Childhood Growth

    Childhood Growth

    / 374 views

    Sal talks with Dr. Laura Bachrach about childhood growth More free lessons at: http://www.khanacademy.org/video?v=gF0aA-si89Y

  • 09:37 Intro to the Endocrine System

    Intro to the Endocrine System

    / 360 views

    Basic overview of hormones and the endocrine system More free lessons at: http://www.khanacademy.org/video?v=f_Z1zsR9lFM

  • 07:53 Stenosis, ischemia and heart failure

    Stenosis, ischemia and heart failure

    / 441 views

    Clarifying a bunch of medical terms around heart disease More free lessons at: http://www.khanacademy.org/video?v=3858MaULDdI

  • 12:21 Heart Disease and Heart Attacks

    Heart Disease and Heart Attacks

    / 598 views

    Basics of heart disease, heart attacks, heart failure, angina, cardiac arrest. Special thanks to Edward J Perper, MD for help in clarifying certain aspects of this video. Licensed under CC-BY-SA More free lessons at: http://www.khanacademy.org/video?v=vYn

  • 06:09 A1C Levels

    A1C Levels

    / 337 views

    Why measuring Hemoglobin A1c levels is an indicator of blood sugar levels (and diabetes) More free lessons at: http://www.khanacademy.org/video?v=MOH33-jFOwo

  • 08:55 Blood Sugar Levels

    Blood Sugar Levels

    / 467 views

    Normal and elevated blood sugar levels before (preprandia) and after (postprandial) a meal More free lessons at: http://www.khanacademy.org/video?v=JSFiOF7xGfE

  • 07:24 Glucose Insulin and Diabetes

    Glucose Insulin and Diabetes

    / 383 views

    The basics of Type I and Type II diabetes More free lessons at: http://www.khanacademy.org/video?v=rPLjSY00JlE

  • 05:28 Applying Logarithms 2

    Applying Logarithms 2

    / 219 views

    u18_l4_t2_we2 Applying Logarithms 2

  • 04:12 Applying Logarithms

    Applying Logarithms

    / 222 views

    u18_l4_t2_we1 Applying Logarithms

  • 04:13 Solving Logarithmic Equations

    Solving Logarithmic Equations

    / 241 views

    u18_l4_t1_we2 Solving Logarithmic Equations More free lessons at: http://www.khanacademy.org/video?v=Kv2iHde7Xgw Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 04:58 Solving Exponential Equations

    Solving Exponential Equations

    / 247 views

    u18_l4_t1_we1 Solving Exponential Equations

  • 01:26 Calculator for Logarithms

    Calculator for Logarithms

    / 257 views

    u18_l3_t1_we7 Calculator for Logarithms

  • 01:09 Calculator for Natural Logarithms

    Calculator for Natural Logarithms

    / 246 views

    u18_l3_t1_we6 Calculator for Natural Logarithms More free lessons at: http://www.khanacademy.org/video?v=r0eFSS8CN-Q Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 01:08 Calculator for Powers of 10

    Calculator for Powers of 10

    / 272 views

    u18_l3_t1_we5 Calculator for Powers of 10

  • 01:28 u18_l3_t1_we4 Calculator for Powers of e

    u18_l3_t1_we4 Calculator for Powers of e

    / 227 views

    u18_l3_t1_we4 Calculator for Powers of e

  • 09:13 Graphing Natural Logarithm Function

    Graphing Natural Logarithm Function

    / 348 views

    u18_l3_t1_we2 Graphing Natural Logarithm Function More free lessons at: http://www.khanacademy.org/video?v=xmjy-0TxgI8 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 03:37 Natural Logarithm with a Calculator

    Natural Logarithm with a Calculator

    / 376 views

    u18_l3_t1_we1 Natural Logarithm with a Calculator More free lessons at: http://www.khanacademy.org/video?v=Dpo_-GrMpNE Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 02:10 Using Multiple Logarithm Properties to Simplify

    Using Multiple Logarithm Properties to Simplify

    / 282 views

    u18_l2_t2_we4 Using Multiple Logarithm Properties to Simplify More free lessons at: http://www.khanacademy.org/video?v=RhzXX5PbsuQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 04:49 Logarithm of a Power

    Logarithm of a Power

    / 405 views

    u18_l2_t2_we3 Logarithm of a Power More free lessons at: http://www.khanacademy.org/video?v=Pb9V374iOas Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 04:39 Difference of Logarithms with Same Base

    Difference of Logarithms with Same Base

    / 255 views

    u18_l2_t2_we2 Difference of Logarithms with Same Base

  • 05:04 Sum of Logarithms with Same Base

    Sum of Logarithms with Same Base

    / 233 views

    u18_l2_t2_we1 Sum of Logarithms with Same Base More free lessons at: http://www.khanacademy.org/video?v=pkGrXzakRFs Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 03:28 Solving Logarithmic Equations

    Solving Logarithmic Equations

    / 249 views

    u18_l2_t1_we4 Solving Logarithmic Equations More free lessons at: http://www.khanacademy.org/video?v=oqAYqT70EBQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 09:10 Graphing Logarithmic Functions

    Graphing Logarithmic Functions

    / 231 views

    u18_l2_t1_we3 Graphing Logarithmic Functions More free lessons at: http://www.khanacademy.org/video?v=DuYgVVU_BwY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 02:00 Logarithmic Equations 2

    Logarithmic Equations 2

    / 230 views

    u18_l2_t1_we2 Logarithmic Equations 2 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 01:27 Logarithmic Equations

    Logarithmic Equations

    / 254 views

    u18_l2_t1_we1 Logarithmic Equations More free lessons at: http://www.khanacademy.org/video?v=fyshrv6YDVY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 08:12 Exponential Application

    Exponential Application

    / 218 views

    u18_l1_t1_we2 Exponential Application

  • 05:32 Graphing Exponential Functions

    Graphing Exponential Functions

    / 226 views

    u18_l1_t1_we1 Graphing Exponential Functions More free lessons at: http://www.khanacademy.org/video?v=9SOSfRNCQZQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 06:18 Quotient of Functions

    Quotient of Functions

    / 241 views

    u17_l3_t1_we4 Quotient of functions and factoring by grouping More free lessons at: http://www.khanacademy.org/video?v=u9v_bakOIcU Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 03:00 Product of Functions

    Product of Functions

    / 236 views

    u17_l3_t1_we3 Product of Functions More free lessons at: http://www.khanacademy.org/video?v=JKvmAexeMgY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 03:08 Difference of Functions

    Difference of Functions

    / 245 views

    u17_l3_t1_we2 Difference of Functions More free lessons at: http://www.khanacademy.org/video?v=KvMyZY9upuA Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 02:33 Sum of Functions

    Sum of Functions

    / 216 views

    u17_l3_t1_we1 Sum of Functions More free lessons at: http://www.khanacademy.org/video?v=n34dqyVCXs4 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 01:47 Domain of a Radical Function

    Domain of a Radical Function

    / 363 views

    u17_l2_t3_we2 Domain of a Radical Function More free lessons at: http://www.khanacademy.org/video?v=4h54s7BBPpA Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 08:07 Domain and Range of a Function Given a Formula

    Domain and Range of a Function Given a Formula

    / 341 views

    u17_l2_t3_we1 Domain and Range of a Function Given a Formula More free lessons at: http://www.khanacademy.org/video?v=za0QJRZ-yQ4 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 10:17 Graphing Radical Functions

    Graphing Radical Functions

    / 248 views

    u17_l2_t2_we3 Graphing Radical Functions More free lessons at: http://www.khanacademy.org/video?v=Mi6OJ4TAufY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 06:03 Graphing a Quadratic Function

    Graphing a Quadratic Function

    / 241 views

    u17_l2_t2_we2 Graphing a Quadratic Function

  • 05:36 Graphing a  Basic Function

    Graphing a Basic Function

    / 259 views

    u17_l2_t2_we1 Graphing a Basic Function More free lessons at: http://www.khanacademy.org/video?v=2-dUHLHeyTY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 05:08 Evaluating Functions

    Evaluating Functions

    / 256 views

    u17_l2_t1_we1 Evaluating Functions More free lessons at: http://www.khanacademy.org/video?v=E9YEUQR9NAU Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 04:07 Graphical Relations and Functions

    Graphical Relations and Functions

    / 334 views

    u17_l1_t1_we3 Graphical Relations and Functions More free lessons at: http://www.khanacademy.org/video?v=qGmJ4F3b5W8 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 06:57 Relations and Functions

    Relations and Functions

    / 203 views

    u17_l1_t1_we2 Relations and Functions More free lessons at: http://www.khanacademy.org/video?v=Uz0MtFlLD-k Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 02:43 Domain and Range of a Relation

    Domain and Range of a Relation

    / 270 views

    u17_l1_t1_we1 Domain and Range of a Relation More free lessons at: http://www.khanacademy.org/video?v=g3LrOw1JMi8 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 05:53 Application Problem with Quadratic Formula

    Application Problem with Quadratic Formula

    / 222 views

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

  • 04:37 Discriminant for Types of Solutions for a Quadratic

    Discriminant for Types of Solutions for a Quadratic

    / 421 views

    u16_l5_t2_we4 Discriminant for Types of Solutions for a Quadratic More free lessons at: http://www.khanacademy.org/video?v=1213qW5k55I Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

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