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810 articles found
Earth science
Auroras are among the most beautiful and mysterious natural phenomena that color Earth's night sky. This light show, observed mainly in the skies near the North and South Poles, ha
Chemistry
Liposomes are artificial vesicles with a bilayer structure similar to biological membranes and have potential for a wide range of biological applications. These vesicles are attrac
Chemistry
Whether a chemical reaction takes one step or many, the total heat is the same if the start and finish match. This article covers who Hess was, why the law holds, how to calculate
Information technology
Kernighan's Law says that debugging is twice as hard as writing code, so code written as cleverly as possible can't be debugged by its own author. We look at where the line came fr
Statistics
Why is it so likely that two people in a small group share a birthday? This article covers the birthday paradox, the two keys to calculating it, why our intuition misses it, and ho
Logistics
Third-party logistics (3PL) means entrusting part or all of a company's logistics to an unaffiliated outside specialist under a long-term contract. This article covers what 3PL mea
Film & media
Video editing has become an essential part of digital content production today. In an era when people consume content through various platforms such as YouTube, Instagram, and TikT
Economics
Comparative advantage is the principle that each party gains by specializing in what it can produce at a lower opportunity cost than others. This article covers the basic concept,
Education
Formative assessment checks what students know and don't know while learning is still underway, and uses the results to improve both teaching and learning. We look at where the ter
Library & information science
Why do a handful of words appear on every page while most words show up only once or twice? This article covers how Zipf's Law became known, the inverse relationship between rank a
Earth science
Why does a layer of air form that gets warmer, not colder, with height? This article explains how temperature inversions form and their types, their effects on fine dust, fog, and
Chemistry
Thermodynamics is an important discipline that explains the interaction between energy and matter. This article explores its key concepts, from basic theory to state and path funct
