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810 articles found
Education
Why did students tutored one-to-one outscore 98% of an ordinary class? This piece explains Bloom’s 2 sigma problem: the three teaching methods Bloom compared in 1984, what standard
General knowledge
This time, I would like to prepare material on eye movements during reading and speed reading. Here, eye movements during reading refer to the movements the eyes make as they follo
Robotics
How do robot arms and drones stop right at their target? This article covers the history of PID control starting with Minorsky, the roles of the proportional, integral and derivati
General knowledge
Hanlon’s Razor is a rule of thumb that says not to blame malice for what mistakes or foolishness can adequately explain. This piece covers where it came from, why we tend to read o
Statistics
Why do call-center phones arrive in uneven bursts even when the average is steady? This article walks through the Poisson distribution—from its single-parameter formula and conditi
General knowledge
Occam’s Razor is the methodological guideline that, when several hypotheses explain the same phenomenon, we should favor the one that adds no unnecessary assumptions. This article
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
Information technology
HTML is short for Hyper Text Markup Language and is one of the languages needed to create websites. Here, HTML mainly uses the concept of tags to create web documents, and this art
Journalism & communication
Public opinion is a social phenomenon that takes shape through a complex process involving various actors. It plays an important role in society's development and change, and the p
Social welfare
Time banking is a neighborhood service-exchange system in which people earn time credits for the hours they spend helping others and use those credits to get help when they need it
Business administration
Efficient problem solving is one of the challenges commonly faced by many organizations and businesses. To address such problems, many organizations have recently been using specia
Economics
Gross domestic product (GDP) is one of the most important indicators in modern economics, used to measure the size and growth of a country's economy. By capturing the sum of a coun
