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777 articles found
Social welfare
The settlement house movement sent educated young people to live in poor neighborhoods alongside residents, combining education, everyday support, and social reform. We look at how
Statistics
A scale assigns numbers to the attributes of people or objects so they can be expressed statistically. This article explains the four types of scales widely used in sociology, psyc
Journalism & communication
News values are the criteria that decide which events become news and how they are reported. This article covers Galtung and Ruge’s 1965 study that started the field, the main news
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
Journalism & communication
Why do we feel that we are fine and only other people are swayed by the media? This article explains the third-person effect and Davison's classic hypothesis, self-enhancement and
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
Library & information science
Information literacy is the ability to recognize what information you need, find it, evaluate it, and use it ethically. This article covers its definition and origins, the core fra
Physics
Total internal reflection happens when light traveling from a material with a higher refractive index toward a lower one hits the boundary beyond the critical angle and is reflecte
General knowledge
Safe driving is an essential virtue for every driver and an important responsibility for protecting one's own safety and that of others. With traffic accidents increasing recently,
Film & media
In cinematography, lighting is one of the core elements, playing an important role in determining the quality and atmosphere of the imagery. Lighting can convey emotions and storie
Chemistry
Chirality is the property of an object or molecule that cannot be superimposed on its own mirror image. This article covers the basic definition of chirality, how mirror-image mole
Robotics
Unimate, installed at a General Motors plant in New Jersey in 1961, is regarded as the world’s first industrial robot. Learn how it grew from George Devol’s patent, how its hydraul
