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809 articles found
General knowledge
A business plan is an essential tool for running a successful business. It helps companies set goals, develop strategies through market analysis, and manage their finances systemat
Education
Why does learning stall when there is too much to hold in mind at once? This article covers the origins of cognitive load theory and the limits of working memory, the three types o
Physics
A sonic boom is the loud sound made when the shock waves created by an object moving faster than sound reach the ground. This article explains how sonic booms form, the small sonic
Statistics
What confidence levels and confidence intervals mean and how they differ, how a confidence interval is calculated from the sample mean, standard error, and critical value, how they
Education
Formative assessment checks what students know and don't know while learning is still underway, and uses the results to improve both teaching and learning. We look at where the ter
Business administration
This time, I would like to prepare material on the PDCA cycle for achieving goals and improving organizations. PDCA (plan–do–check–act) is a method for managing production, quality
General knowledge
This time, I would like to cover the basics of writing a personal statement that you need when applying to a school, company, or similar institution. A personal statement (self-int
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
Statistics
Nonparametric statistical methods are among the important methodologies that play a powerful role in data analysis. They can be useful when it is difficult to make assumptions abou
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
Social welfare
What if everyone received the same money every month, no questions asked? This article covers the origins of basic income from More and Paine, its five defining features, experimen
Economics
The benchmark interest rate plays a very important role in the South Korean economy. It is the interest rate set by the Bank of Korea and applied when commercial banks borrow funds
