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809 articles found
Social welfare
Providing fair opportunities and benefits to everyone is a very important task in modern society. In particular, people with disabilities face various difficulties in daily life an
General knowledge
Godwin’s Law is the internet adage that the longer an online discussion grows, the closer the probability of someone comparing others to Nazis or Hitler gets to 1. This article cov
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
Education
Why do we learn better ourselves when we try to teach others? This article explains the origins of the protégé effect, the Betty's Brain experiment, why preparing to teach deepens
Physics
Why do tiny particles in water never stop jiggling? This article explains Brownian motion, first observed by Robert Brown, the principle Einstein uncovered behind it, Perrin's expe
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
Statistics
Probability sampling randomly selects cases so that every member of a population has a known probability greater than zero of being chosen for the sample; these probabilities need
Economics
The Korean stock market is constantly changing in response to global economic trends and domestic political changes, and the pace and patterns of these changes are becoming increas
Economics
Engel's law is the empirical rule that as income rises, the share of total spending that goes to food steadily falls. This piece covers the basic concept, the Engel coefficient and
General knowledge
The Nobel Prize is one of the world's most prestigious awards, presented annually to individuals or organizations that have achieved outstanding accomplishments in their respective
Design
This time, I would like to discuss commonly encountered computer and mobile image formats(types). Images have different file types (extensions), such as Jpg, gif, and png, and I wi
Design
The Double Diamond is a model that draws the design process as two diamonds side by side. This article covers what the two diamonds mean, the Discover and Define phases, the Develo
