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810 articles found
Information technology
Blockchain technology is one of the innovative technologies that have attracted rapidly growing interest and attention in recent years. As a distributed system capable of replacing
Chemistry
Saponification is the chemical reaction in which fats and oils react with an alkali to become soap and glycerol. This article covers how the reaction works, why soap removes grease
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
Information technology
In modern society, information security and hacking are no longer concerns limited to experts. As the internet and digital technologies advance, we regularly enter the cyber world
Physics
Conservation of angular momentum means that when no outside force acts to change its rotation, the amount of rotation a spinning object has stays the same. This piece covers the co
Economics
The Big Mac Index compares the price of a Big Mac around the world to gauge whether a currency is overvalued or undervalued. This article covers how it began, the purchasing power
Statistics
Why is it so likely that two people in a small group share a birthday? This article covers the birthday paradox, the two keys to calculating it, why our intuition misses it, and ho
Economics
The basic concepts of supply and demand, how market equilibrium and the equilibrium price form, how price changes affect quantity demanded and supplied, what shifts the demand and
Tourism studies
Adventure tourism is a rapidly growing field that occupies an important place in modern tourism studies. This article first examines the definition and historical background of adv
General knowledge
Cunningham’s Law is the internet adage that the best way to get the right answer online is not to ask a question but to post a wrong answer. This article covers where the law came
Tourism studies
In modern society, tourism has a tremendous impact on national economies and has established itself as an important means of promoting international cultural exchange. Tourist dest
Food & nutrition
Nixtamalization is a traditional Mesoamerican method of cooking and steeping dried corn in an alkaline solution such as limewater, then washing and hulling it. Learn its history, h
