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810 articles found
Business administration
The Theory of Constraints holds that a system's performance is determined by its single weakest link, so that constraint should be found and managed with focus. Learn what it is, t
Physics
Why does a free kick bend and a curveball drop? This article covers Newton's tennis ball, Magnus's cylinder experiment, the pressure difference created by spin, its uses in sports
Business administration
Efficient business management is essential for a company to grow continuously and succeed. Responding quickly to changes in the internal and external environment, allocating resour
Social welfare
The Beveridge Report, published in Britain in 1942 during the Second World War, proposed rebuilding postwar welfare around flat-rate social insurance for every citizen. This piece
Journalism & communication
Why is the press called the “fourth estate”? This article traces the phrase from the three estates and the press gallery of the British Parliament to Macaulay, Carlyle, and the Bur
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
Journalism & communication
Korean media have developed in various forms over thousands of years. From ancient records and medieval methods of communication to modern digital media, the history of Korean medi
Statistics
The Monty Hall problem is a classic conditional-probability puzzle about how to update the odds when new information arrives. This piece covers the host’s rules, why switching wins
Information technology
Advances in AI technology are bringing new changes to our lives. We can now interact with artificial intelligence (AI) that thinks and learns like humans. Among these technologies,
Library & information science
A reference interview is the conversation in which a librarian refines a user’s first question and finds the information the person really needs. This article covers why it is need
Information technology
Hyrum’s Law says that with enough users of an interface, every observable behavior will be depended on, regardless of what the documentation promises. This piece covers Hyrum Wrigh
Chemistry
A few drops of lemon juice make water sour, so why does the pH of blood stay the same? This article explains buffer solutions, whose pH barely changes even when acid or base is add
