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810 articles found
Information technology
Smart grids play an important role in addressing the energy challenges of modern society and creating a sustainable future. Unlike traditional power grids, smart grids use informat
Earth science
Clouds are a familiar sight, yet few people understand how they form, what kinds there are, and what each one tells us. This article explains the principles of cloud formation, the
Library & information science
Mooers’ Law is the principle that no matter how good an information retrieval system is, it will not be used where having information is more painful and troublesome than not havin
Statistics
After a standout exam or a praised flight, the next result often looks weaker—and after a flop, stronger. Much of that swing is regression toward the mean, not praise or blame. Thi
Food & nutrition
Dieting is considered an important issue for many people today, and various methods have been proposed for losing weight and maintaining health. However, improper dieting methods n
Economics
The paradox of thrift is the idea that saving, a virtue for an individual, can harm the economy as a whole when everyone does it at once. This article covers how the paradox works,
Journalism & communication
Investigative reporting is one of the core roles of modern journalism, playing an important part in illuminating society's darker aspects and uncovering the truth. This material ai
Psychology
Psychological shock is an issue that significantly affects an individual's mental health and is a factor that cannot be ignored in everyday life. It usually occurs in situations in
Physics
Rayleigh scattering, worked out by Lord Rayleigh in 1871, is the scattering of light by particles much smaller than its wavelength, such as air molecules, and it is far stronger fo
Economics
Comparative advantage is the principle that each party gains by specializing in what it can produce at a lower opportunity cost than others. This article covers the basic concept,
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
Logistics
Order picking is the work of retrieving the items a customer ordered, in the right quantities, from where they are stored. We look at why it can account for up to 55% of warehouse
