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810 articles found
Social welfare
In modern society, mental health welfare has become an essential support system. As stress and anxiety increase alongside a rapidly changing social environment, mental health issue
Information technology
Why is pressing an elevator button twice safe, while double-clicking a payment button feels risky? This article explains idempotence—from its mathematical name to everyday buttons,
Logistics
The hub-and-spoke model gathers cargo from many origins at a central hub, sorts it by destination, and sends it back out to each region. This piece covers how it compares with poin
Psychology
Love is one of the most powerful and complex emotions in human life. While this complexity of love is fascinating in itself, understanding and assessing our types of love plays an
Library & information science
Why do a small number of researchers write so many papers? This article covers the inverse square law Lotka identified in 1926, its uses in bibliometrics, and its limits, such as e
Logistics
The Economic Order Quantity (EOQ), presented by Ford W. Harris in 1913, is the order size that minimizes the sum of fixed ordering costs and inventory holding costs when demand is
Information technology
Dennard scaling is the semiconductor scaling rule that if transistors are made smaller while voltage is lowered by the same ratio, the power used by a given area of a chip stays th
Information technology
Why does adding people to a late software project often make it even later? This article covers the origin of Brooks's Law and the illusion hidden in the man-month, why adding peop
Design
This time, we will explore layout, one of the concepts and key elements you need to understand to create attractive designs. We will look at what to consider when creating a layout
Food & nutrition
Nixtamalization is a traditional Mesoamerican method of cooking and steeping dried corn in an alkaline solution such as limewater, then washing and hulling it. Learn its history, h
Physics
Relativity is a groundbreaking theory that fundamentally changed the paradigm of physics. Proposed by Albert Einstein, it challenged traditional concepts of time and space. Relativ
Information technology
Why doesn’t doubling your cores double your speed? Amdahl’s Law shows that the serial portion you cannot parallelize caps the overall speedup at 1/s. This piece covers the formula,
