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810 articles found
Tourism studies
Why do residents' smiles toward tourists turn into sighs as tourism grows? This article covers the background of Doxey's Irritation Index, its four stages of euphoria, apathy, anno
Psychology
Psychological shock is an issue that significantly affects an individual's mental health and is a factor that cannot be ignored in everyday life. It usually occurs in situations in
Social welfare
Providing fair opportunities and benefits to everyone is a very important task in modern society. In particular, people with disabilities face various difficulties in daily life an
Logistics
Order picking is the work of retrieving the items a customer ordered, in the right quantities, from where they are stored. We look at why it can account for up to 55% of warehouse
Physics
The universe is a place with a structure so vast and complex that it surpasses our perception and imagination. Various theories have emerged to unravel the secrets hidden within it
Chemistry
Electrochemistry is the study of the interaction between chemistry and electricity, an important field that has a profound impact on our everyday lives. It plays a central role in
Physics
Entropy is a quantity that captures why nature flows in only one direction. This article covers its origin with Clausius, the Second Law of Thermodynamics, Boltzmann's probabilisti
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
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
Earth science
Snowball Earth is the hypothesis that Earth’s surface was once almost entirely covered in ice during the Cryogenian Period. This article explains how the idea arose, the ice-albedo
General knowledge
Life consists of checking your smartphone as soon as you open your eyes each morning, working in front of a monitor all day, and enjoying content until bedtime. This routine is all
Physics
Certain solids build up electric charge on their surfaces the moment they are pressed or stretched. This article covers how the piezoelectric effect works, the meaning behind its n
