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785 articles found
Social welfare
Social exclusion is emerging as an important issue in modern society. Social exclusion refers to a situation in which particular groups or individuals are unable to participate in
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
Business administration
The principal-agent problem is the conflict that arises when the interests of the person who hands over a job and the person who takes it on diverge. We look at why it happens, how
Logistics
Third-party logistics (3PL) means entrusting part or all of a company's logistics to an unaffiliated outside specialist under a long-term contract. This article covers what 3PL mea
Robotics
How does a robot with no map work out both its surroundings and its own position? This piece explains SLAM: the chicken-and-egg problem behind it, its roots in the 1986 IEEE roboti
Chemistry
Inorganic chemistry is a branch of chemistry that, unlike organic chemistry, which centers on carbon, studies most elements other than carbon and their compounds. As a fundamental
Earth science
A caldera is a large, round basin that forms when the ground above an emptied magma chamber collapses. Learn how it differs from a crater, how it forms, famous calderas around the
Earth science
Gravity is an essential part of our everyday lives and one of the fundamental forces of the universe. Through gravity, we pull objects toward the ground, and it affects everything
Robotics
Subsumption architecture is a robot control method in which simple behavior layers are stacked from the bottom up and higher layers override lower ones when needed. This article co
Food & nutrition
Food allergies are among the health problems many people face, occurring when the body's immune system overreacts to the consumption of certain foods. Allergic reactions can be mil
Design
Why do people assume a prettier app is easier to use before they try it? This piece explains the aesthetic-usability effect through Kurosu and Kashimura’s 1995 ATM study, Tractinsk
Earth science
Lightning is one of the most remarkable electrical phenomena produced by nature. The moment lightning flashes is not only visually beautiful but also conceals complex scientific pr
