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807 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
Psychology
How attachment theory developed from Bowlby and Ainsworth, the main attachment types and their traits, and how the theory is applied today in education, therapy, family counseling,
General knowledge
Writing reports is a big part of college life, but it can be hard for first-year students. This guide covers report structure, research, the cover page and table of contents, and h
Education
The kindergarten, a school where young children learn through play, was created by the German educator Friedrich Fröbel in 1840. This article covers the first kindergarten, his tea
Film & media
Bullet time is a visual effect in which time seems to slow down or stop while the camera keeps moving around the scene at normal speed. This article explains how it differs from sl
Logistics
How did the milk run, in which one truck visits several suppliers in turn, come about? This article explains where the name comes from, how it works, how it is used in production a
Statistics
The secretary problem asks how to maximize the chance of picking the very best candidate when you must decide on each one on the spot. This article explains its rules, why the answ
Business administration
First-mover advantage is the edge a company gains by entering a market before anyone else. We look at where that edge comes from, the costs pioneers pay, what historical research r
Robotics
Why can computers beat chess champions yet struggle to pick up a cup? This article covers the origins of Moravec's paradox, its evolutionary explanation, examples from robotics, an
Library & information science
Library anxiety is the discomfort, worry, and fear people feel when they need to find and use materials in a library, and the urge to avoid asking for help that comes with it. This
Social welfare
Child welfare is an important field dedicated to ensuring and improving the health, education, and safety of children, who represent society's future. This field requires cooperati
Social welfare
When we say someone has a “need,” we can mean four different things. This article walks through Bradshaw’s Taxonomy of Social Need: normative, felt, expressed and comparative need,
