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810 articles found
Statistics
In this article, we will explore the concept of norms. Norms refer to the scores used as a basis for comparison when comparing an individual's test score with those of other people
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
Social welfare
Can you still protect your livelihood when illness or job loss keeps you from working? This article explains decommodification as defined by Gøsta Esping-Andersen, the criteria use
Tourism studies
Tourism carrying capacity is the maximum number of visitors a place can receive without seriously harming its environment, residents, or the visitor experience. This piece covers i
Chemistry
Why does salted cabbage release its water overnight? This article covers what osmosis is, the three factors that drive it, everyday examples, and reverse osmosis, the technology th
Design
You have probably tried to tap a small close button on your phone screen and ended up tapping an unintended ad. By contrast, the large payment button at the bottom of the screen is
Information technology
Smart grids play an important role in addressing the energy challenges of modern society and creating a sustainable future. Unlike traditional power grids, smart grids use informat
Food & nutrition
The Atwater general factor system estimates a food’s energy by multiplying each nutrient by a fixed value, such as 4kcal per gram for carbohydrate and protein and 9kcal per gram fo
General knowledge
Why can contact lists grow while deep ties stay few? Dunbar’s Number says humans can sustainably keep only so many stable relationships—often about 150—layered as roughly 5, 15, 50
Business administration
Why is it so hard to switch carriers, airlines, or software even when a cheaper option exists? This piece explains switching costs, the three types identified by Burnham, Frels, an
Statistics
Why is it so likely that two people in a small group share a birthday? This article covers the birthday paradox, the two keys to calculating it, why our intuition misses it, and ho
Earth science
Why does a layer of air form that gets warmer, not colder, with height? This article explains how temperature inversions form and their types, their effects on fine dust, fog, and
