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776 articles found
Robotics
The uncanny valley is the phenomenon in which our affinity for a robot or doll grows as it becomes more humanlike, then suddenly drops into unease when it looks almost, but not qui
Journalism & communication
The Magic Bullet Theory is the view that media messages hit audiences directly, like bullets, and produce the same effect in everyone. We look at the age of propaganda that produce
Economics
If you had a worn, crumpled bill and a crisp new one in your wallet, which would you hand over first? This article explains Gresham's Law, the idea that bad money drives out good:
Food & nutrition
Carbohydrates are one of the indispensable nutrients in our daily diet and are a major source of energy. Carbohydrates are divided into simple and complex carbohydrates, each of wh
Education
Why does learning stall when there is too much to hold in mind at once? This article covers the origins of cognitive load theory and the limits of working memory, the three types o
Statistics
Reliability and validity always come up when studying surveys in statistics, marketing, or opinion polling. This guide uses two illustrated examples, shooting and makeup, to make t
Logistics
How do the everyday items we use and the countless products imported from overseas reach our hands? Most arrive aboard enormous container ships at major ports such as Busan Port or
Chemistry
Liposomes are artificial vesicles with a bilayer structure similar to biological membranes and have potential for a wide range of biological applications. These vesicles are attrac
Food & nutrition
Healthy, elastic skin is one of the standards of beauty that many people strive for. This is especially true today, when there is so much interest in looking younger. The protein c
Food & nutrition
Why doesn't honey spoil easily even though it contains water? This article explains water activity, a measure of the free water in food, and how it is measured, the limits below wh
Film & media
An anamorphic lens squeezes a wide scene only horizontally onto film or a sensor, then stretches it back by the same ratio to create a widescreen image. This article covers how it
Psychology
Self-efficacy is the belief that an individual can achieve a goal in a particular situation, and it has an important influence on the individual's behavior, emotions, and overall q
