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General knowledge
This time, I would like to introduce brainstorming, a technique used especially often in situations that call for ideas. Although it is already a well-known technique, some people
Statistics
Reliability and validity always come up when studying surveys in statistics, marketing, or opinion polling. This guide uses two illustrated examples, shooting and makeup, to make t
Earth science
The phenomenon in which an asphalt road you walk along every day or a yard in a quiet residential neighborhood suddenly collapses into an enormous hole is called a sinkhole. You ha
Physics
Thin-film interference is the phenomenon in which light reflected from the top and bottom surfaces of a very thin film overlaps, strengthening some colors and weakening others. Thi
Logistics
The vehicle routing problem asks how several vehicles starting from one depot should split up their customers to keep total cost as low as possible. This article covers its basic s
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
Design
In visual design, patterns are elements that play an important role by bringing form and meaning into harmony. Patterns go beyond merely repeating forms and serve an important func
Physics
Cherenkov radiation is the cone of light given off when a charged particle moves through a material such as water or glass faster than light travels in that material. Learn how it
Chemistry
Chemistry is transforming every aspect of our lives, and polymers in particular play a central role in a wide range of fields, from everyday life to advanced industries. Beyond sim
Education
Proposed by educational psychologist David Ausubel, an advance organizer is a broad, general idea presented before new material so it can connect to what learners already know. Thi
Psychology
Liking refers to the emotional experience of feeling fond of another person. It means developing a liking for someone in everyday life, and this liking can have a significant influ
Tourism studies
Leiper’s Tourism System views tourism as one connected system of tourists, the region they leave, the route they travel, the destination they stay in, and the tourism industry. Lea
