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799 articles found
Social welfare
What if a doctor recommended a choir or a community garden group instead of medicine? This article explains what social prescribing means and how it emerged, how link workers carry
Library & information science
Why do a handful of words appear on every page while most words show up only once or twice? This article covers how Zipf's Law became known, the inverse relationship between rank a
Business administration
One of the first things to consider when running a business is how to generate revenue through its services. Therefore, to sustain and grow a business, you should start with a clea
Robotics
Asimov’s Three Laws of Robotics are a set of prioritized rules: a robot must not harm humans, must obey human orders, and must protect itself. We look at how the laws were born, wh
Robotics
Passive dynamic walking is the idea that a machine can walk using only gravity and inertia, with no motors or controllers, as long as its body shape and weight distribution are rig
Statistics
Standard deviation plays an important role in describing data variability and is an essential concept used in a wide range of practical situations. In data analysis and decision-ma
Design
Universal design is a way of designing products and spaces so that as many people as possible can use them, regardless of age, build, or disability, without separate modifications
Economics
What happens if you keep pouring wine into the topmost glass in a tower of stacked wine glasses? Once the upper glass fills up, the overflowing wine naturally flows down into the g
Physics
Why does a swing go higher and higher when you push it in rhythm? This article explains what resonance and natural frequency mean, how the swaying grows, its uses in musical instru
Psychology
The Barnum effect is our tendency to accept vague personality descriptions that fit almost anyone as accurate analyses of ourselves. This piece covers where the name came from, P.
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
Social welfare
Time banking is a neighborhood service-exchange system in which people earn time credits for the hours they spend helping others and use those credits to get help when they need it
