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810 articles found

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Earth science

The Coriolis Effect: What It Is and How It Affects Us

The Coriolis effect is the phenomenon in which Earth's rotation alters the paths of moving objects. This article looks in detail at its definition and principle, its influence on w

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Social welfare

The Power to Take Charge of Your Life: Empowerment

Empowerment is the process by which individuals and groups build the power to take part in and control the decisions that affect their lives. This guide explains its origins and co

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Earth science

The Force That Pushes Continents: Plate Tectonics

Plate tectonics is the theory that Earth’s outer shell is divided into rigid plates that move over a weaker layer, causing earthquakes, volcanoes, and mountain ranges. This article

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Economics

Saving More, Using More: The Jevons Paradox

The Jevons paradox is the phenomenon in which improving the efficiency of resource use ends up increasing total consumption. This piece covers its origins in Jevons’s The Coal Ques

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General knowledge

It Always Takes Longer Than Expected: Hofstadter’s Law

Hofstadter’s Law says that it always takes longer than you expect, even when you take the law into account. This piece covers its origin in Gödel, Escher, Bach, its recursive struc

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Information technology

Waiting on Each Other Until Everything Stops: Deadlock

A deadlock is a state in which several programs each wait for a resource the other holds, so none of them can move forward. This article covers how deadlocks arise, the four Coffma

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Statistics

An Easy Guide to Understanding Reliability and Validity

Reliability and validity always come up when studying surveys in statistics, marketing, or opinion polling. This guide uses two illustrated examples, shooting and makeup, to make t