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810 articles found
Statistics
The German tank problem asks how to estimate the total number of sequentially numbered items from the serial numbers of just a few. We look at how the Allies used captured tank ser
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
Chemistry
Henry's law says that the amount of gas dissolved in a liquid is proportional to the pressure of the gas above it. This article covers why a soda fizzes when opened, what happens i
Food & nutrition
Caramelization is the reaction in which sugar, heated to high temperatures, breaks down and recombines into brown compounds and aroma molecules. We look at how it works, the temper
Physics
Superconductors are materials whose electrical resistance becomes 0, meaning that current can flow without energy loss. Thanks to this property, superconductors offer possibilities
Education
Modern educational methodology is continually changing and undergoing innovation. From traditional educational methods to the introduction of digital technology, education has deve
Tourism studies
Sustainable tourism aims to have a positive impact on local communities and the environment while providing visitors with beneficial and enjoyable experiences. The rapid growth of
Psychology
In psychology, impressions are considered a very important concept, and the first impressions we form of other people or things have a very powerful influence. These impressions gr
Tourism studies
A package tour bundles transportation, accommodation, meals, and an itinerary into one product sold at a single price. This article traces its origins in Thomas Cook's 1841 train e
Chemistry
Spectroscopy is a technique that plays an essential role in analyzing the properties and structures of substances and has become an indispensable tool in various fields today. This
Design
Nielsen’s usability heuristics are ten rules of thumb for judging whether a screen is easy and comfortable to use. This article covers how they came about, the ten principles, ever
Statistics
Why does the share of heads get closer to half the more times you toss a coin? This article explains the meaning and principle of the law of large numbers, its history beginning wi
