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784 articles found
Tourism studies
Festivals take place in various forms around the world and are important activities that reflect local communities and their cultural identities. From the perspective of tourism st
Psychology
Psychologist Abraham Maslow divided basic human needs into five stages. This article introduces his hierarchy of needs, from physiological needs, safety, and belonging and love to
Journalism & communication
Four Theories of the Press (1956) sorted the world's press into authoritarian, libertarian, social responsibility, and Soviet communist theories. This article covers what each beli
Physics
Thin-film interference is the phenomenon in which light reflected from the top and bottom surfaces of a very thin film overlaps, strengthening some colors and weakening others. Thi
Design
Packaging design is an important factor that determines a product's first impression and directly influences consumers' purchasing decisions. Today's consumers consider more than a
Physics
Modern science plays a central role in understanding the various phenomena we encounter in everyday life and developing new technologies based on that understanding. Among its theo
Robotics
Teleoperation lets a person control a distant machine directly, sending their hands and eyes where people cannot safely go. This article covers its origins in 1940s–50s nuclear lab
Social welfare
Two people with the same income can lead very different lives. This article explains the capability approach of Amartya Sen and Martha Nussbaum, from functionings and capabilities
Psychology
Anger is one of the most powerful and primal emotions humans can experience. This emotion is shaped in complex ways by biological, psychological, and social factors, and it affects
Tourism studies
Why do people travel, and why do they choose a particular place? This article explains the origins of push-pull theory, push factors as travel motives, pull factors as destination
Physics
Why does an ambulance siren suddenly drop to a lower, drawn-out pitch the moment it passes you? This guide explains the Doppler effect, from its basic concept and working principle
Library & information science
A handy reference to the Korean Decimal Classification (KDC, 6th edition) used in Korean public and school libraries: how main classes, divisions, sections, and subdivisions work,
