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2#34; 97%以上節約 amp; 3#34; 期間限定送料無料 Sanding Disc R R-lock Lock Roll Holder

2#34; amp; 3#34; Sanding Disc Holder R-lock Roll amp; Lock R

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2#34; amp; 3#34; Sanding Disc Holder R-lock Roll amp; Lock R

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Description 2" amp; 3" Sanding Disc Holder R-lock, Roll amp; Lock Rotary Pad Holder 1/4" Shank Specification Flexible disc holder is made of reinforced rubber for durability. For use with R-lock type sanding discs 1/4" diameter and 1-1/4" long steel shank, fits most grinders. Professional tools ideal for sanding discs as well as conditioning discs. Includes: 2" sanding disc holder (max speed: 30,000RPM) 3" sanding disc holder (max speed: 20,000RPM)

2#34; amp; 3#34; Sanding Disc Holder R-lock Roll amp; Lock R

Latest Articles

Why Is Better Explained Different?

Most lessons offer low-level details in a linear, seemingly logical sequence. Better Explained focuses on the big picture — the Aha! moment — and then the specifics. Here’s the difference:
I know which approach keeps my curiosity and enthusiasm. The learning strategy is the ADEPT Method:

Learning isn’t about memorizing facts to pass a test. It’s about unlocking the joy of discovery when an idea finally makes sense. If this approach resonates with you, welcome aboard.

About Kalid Azad

I enjoyed math until a poorly-taught class nearly destroyed that passion. A last-minute Aha! moment showed me math could make sense, even be enjoyable, when presented with:

  • A friendly, curious attitude
  • A mix of intuitive and technical understanding
  • A focus on lasting insight

I share explanations that helped, hoping they help you too. I’m thrilled that Better Explained now reaches millions every year, and has appeared in blogs for the New York Times and Scientific American. GoYonder 4.5 Inch Super Thin Diamond Saw Blade for Cutting Porce

Popular Articles

Intuitive Learning

ADEPT method

Learning starts with an analogy.

Why Learn Math?

Vocabulary for thinking

Math Intuition

Start with the cat, not its DNA

Bow & Arrow Intuition

First, have a good shot.

Pencil, Then Ink

Don't hide the process

Analogies

Useful, even if "wrong"

Cartoons

Simplify ideas to a caricature

Intuition Isn't Optional

The recipe for knowledge that lasts.

Arithmetic & Numbers

Mental Math Shortcuts

A few memorable conversions

Sum 1 to 100

Rearrange to simplify

Visual Arithmetic

Every operation is a transformation

Sense of Scale

Bring large numbers down to everyday terms

Fencepost Problem

Counting spans or points?

Number Systems

When the odometer ticks over

Everyday Logarithms

Counting digits

Modular Arithmetic

Variations on clocks

Algebra & Counting

Combinations

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Primes

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The Equals Sign

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Factoring Equations

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Parametric Equations

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Types of Graphs

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Square Numbers

Use geometry, algebra, calculus

Navigate a Grid

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Combinations & Multiplication

Choices multiply.

Ratios

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Quadratic Formula

Rearrange a square

Polynomial Intuition

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Geometry

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How every shape changes

Pythagorean Distance

Compare any quantities

Similarity

Step back. Smaller shape, same ratios.

Pythagorean Rescale

Work from a unit triangle

Precalculus & Trigonometry

Radians

Angles from the mover’s perspective

Finding Pi

Surround that critter

Sine Waves

The natural sway found in circles, springs

The Number e

Perfectly smooth growth

Natural Log

Time needed to grow

Imaginary Numbers

Numbers can rotate

Complex Numbers

Arithmetic goes 2d

Complex Multiplication

Scale & rotate

Exponents

Grow numbers in the expand-o-tron

Think With Exponents

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Trigonometry

Visualize a dome, wall, and ceiling

Law of Sines

Every angle has an equal perspective.

Law of Cosines

Keep track of interacting parts.

Trig Identities

Draw the circles yourself.

Hyperbolic Trig

Mini exponentials and logarithms

Statistics

Statistics

See footprints, guess the animal

Averages

"Typical" depends on the relationship

Birthday Paradox

23 people, many possibilities

Bayes Theorem

Extra info? Adjust the odds.

Short Bayes’ Theorem

Adjust for false positives

Monty Hall

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Calculus Course

Calculus Guide

Learn the basics, fast.

Lesson 1

1-Minute Summary

Lesson 2

X-Ray Vision

Lesson 3

3D intuition

Lesson 4

Integrals, Derivatives

Lesson 5

Computer Notation

Lesson 6

Improved Algebra

Lesson 7

Linear Changes

Lesson 8

Squared Changes

Lesson 9

Infinity

Lesson 10

Derivatives

Lesson 11

Fundamental Theorem of Calculus

Lesson 12

Rules: Add, Multiply, Invert

Lesson 13

Patterns In the Rules

Lesson 14

Rules: Powers, Division

Lesson 15

Archimedes' Formulas

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0.999… = 1?

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Limits

Guess what happened when you blinked

Limits / Infinitesimals

Make a model perfect

Integration

Piece-by-piece multiplication

Derivative Intro

Measurements depend on the instrument

Derivatives II

Imagine linked machines

Derivatives III

Quotient, exponents, logs

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Integral of sin

Whoa: the horizontal change

Taylor Series

DNA of a function

Vector Calculus

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Total twist, twist at a point

The Gradient

Microwave the doughboy, quick

Gradient Details

Follow the best tradeoff

Flux

Amount of bananas crossing a surface

Divergence

Flux per unit volume

Dot Product

Mario Kart speed boost

Cross Product

All the uneven parts

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Math with mini-spreadsheets

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Fourier Transform

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Convolution

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Distributed VCS

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Git Insights

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You'll never run out. Ever.

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Unicode

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Telnet is an IM conversation
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Business

Rule of 72

time = 72/interest

Pareto Principle

Sometimes 80% is enough

Stock Market

A transparent store

Accounting Basics

Everything is owned by someone

Interest Rates

A formula for every type of interest

Debt & Leverage

Invested debt multiplies return

Assorted Musings

Know Thyself

If you're Hulk, be Hulk.

Simplicity vs. Complexity

Complexity, not power, is the enemy.

Notes on Happiness

Passion, foolishness, dancing

Brevity is Beautiful

Zero guilt.