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810 articles found
General knowledge
CCL (Creative Commons License) lets creators state in advance how their work may be used, so others can use it without asking for permission each time. This article explains the co
Economics
The Jevons paradox is the phenomenon in which improving the efficiency of resource use ends up increasing total consumption. This piece covers its origins in Jevons’s The Coal Ques
Economics
The Phillips curve shows an inverse relationship between unemployment and the pace at which wages and prices rise. This article covers what Phillips found, how the curve was used i
Chemistry
From the smartphone we check as soon as we open our eyes each morning to electric cars quietly passing along the street, laptops, and power banks, the daily lives of people today w
Journalism & communication
Why does a friend’s recommendation often sway us more than an ad? This article explains Lazarsfeld’s two-step flow theory—how media messages reach opinion leaders first and then sp
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
Business administration
Analyzing a company's financial statements is an essential process for understanding and evaluating its financial position in depth. Financial statements provide an accurate pictur
Logistics
The world of logistics and trade is full of complex documents. Among them, the invoice is unquestionably one of the most fundamental and important. Tax invoices and transaction sta
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
Statistics
Inferential statistics is a methodology that plays a very important role in analyzing and interpreting data. It is a statistical technique that uses sample data to draw conclusions
Education
Formative assessment checks what students know and don't know while learning is still underway, and uses the results to improve both teaching and learning. We look at where the ter
Earth science
Auroras are among the most beautiful and mysterious natural phenomena that color Earth's night sky. This light show, observed mainly in the skies near the North and South Poles, ha
