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810 articles found
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
General knowledge
The main types of vision problems such as myopia, hyperopia, astigmatism, and presbyopia, the science of lenses, materials, and coatings, how each problem is corrected, other corre
Education
The International Baccalaureate (IB) is an international curriculum and qualification created by a nonprofit education foundation based in Geneva. This article covers how the IB be
General knowledge
Brandolini's Law is the rule of thumb that refuting a false claim takes far more effort than producing it. We look at where the law came from, why rebuttals are so hard, older insi
Food & nutrition
Pasteurization heats food below boiling to cut pathogens and spoilage microbes while keeping flavor and nutrition. This piece covers Pasteur’s wine experiments in 1864, Soxhlet’s m
Chemistry
An in-depth look at chromatography, an essential tool in chemical analysis: its basic principles and history, major techniques such as HPLC, GC, IC, SEC, and paper and thin-layer c
Business administration
In this article, we will explore methods for managing and evaluating performance when running a company or organization. Performance management is an organizational management meth
Robotics
What determines how a robot can move? This article explains degrees of freedom, covering what the term means, how six-axis industrial robot arms work, the degrees of freedom of the
Business administration
An introduction to the blue ocean and red ocean, two basic concepts for understanding market environments, plus the purple ocean that combines them, explained through examples from
Tourism studies
Cohen’s Tourist Typology sorts travelers into four types depending on how much they seek familiarity or novelty. This article covers the environmental bubble, the traits of the fou
Social welfare
The growth of the older population is a prominent phenomenon worldwide, resulting from various factors such as improvements in quality of life, increased life expectancy, and advan
Tourism studies
Ecotourism is an important form of tourism that protects the natural environment and ecosystems while revitalizing local economies. The role and importance of ecotourism in buildin
