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810 articles found
Social welfare
Social welfare used to be simple. It consisted entirely of delivering goods (In-kind), such as rice or instant noodles, to neighbors facing financial hardship, or depositing a set
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
General knowledge
The main types of vision problems such as myopia, hyperopia, astigmatism, and presbyopia, the science of lenses, materials, and coatings, how each problem is corrected, other corre
Economics
Some goods sell better the more their prices rise. This article explains the Veblen effect, in which the desire to show off drives up demand, covering its meaning and origins, how
Film & media
Documentaries are loved by many as a medium that captures reality as it is while conveying profound insights and emotional impact. Their popularity continues to grow, making a soph
Journalism & communication
What does the press actually do for society? This article explains the main functions of the press, from providing information, acting as a watchdog, and shaping public opinion to
Journalism & communication
Why does a friend’s recommendation often sway us more than an ad? This article explains Lazarsfeld’s two-step flow theory—how media messages reach opinion leaders first and then sp
Chemistry
Analytical chemistry is a branch of chemistry that scientifically analyzes the composition, structure, and chemical properties of substances. This discipline plays a very important
Psychology
Intimacy is one of the most important elements in human relationships, significantly influencing an individual's quality of life and social functioning. We interact with various pe
Design
Gradient design is an important design technique that creates visually appealing effects through subtle changes in color and tone. This technique can be used in various fields and
Food & nutrition
Protein is an essential nutrient for maintaining our body's basic health and functions. It forms the structure of our body's cells, performs numerous life-sustaining functions, and
Chemistry
Why does salted cabbage release its water overnight? This article covers what osmosis is, the three factors that drive it, everyday examples, and reverse osmosis, the technology th
