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810 articles found
Earth science
The relationship between climate change and humidity is an important research topic in modern environmental science. It is essential to gain a thorough understanding of how climate
Logistics
Returns, recalls, reusable crates, and recycling all flow in the opposite direction from ordinary shipping. This piece explains what reverse logistics covers, the collection–inspec
Social welfare
When we say someone has a “need,” we can mean four different things. This article walks through Bradshaw’s Taxonomy of Social Need: normative, felt, expressed and comparative need,
General knowledge
With advances in modern agricultural technology and the widespread use of protected cultivation (greenhouse growing), we live in an era when lettuce, cucumbers, and tomatoes are av
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
Film & media
A dolly zoom moves the camera while zooming the lens the opposite way, keeping a person the same size while the background stretches or swells. This piece covers its birth in Hitch
Education
Modern educational methodology is continually changing and undergoing innovation. From traditional educational methods to the introduction of digital technology, education has deve
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
Statistics
The coupon collector’s problem asks how many random draws it takes, on average, to collect every type at least once. Learn how the average is calculated, what the numbers look like
Earth science
Radiometric dating calculates how old a rock or artifact is by comparing a radioactive isotope with the material it decays into. This article covers how half-life works, how differ
Journalism & communication
Four Theories of the Press (1956) sorted the world's press into authoritarian, libertarian, social responsibility, and Soviet communist theories. This article covers what each beli
Education
A growth mindset is the belief that intelligence and talent can grow through effort, good strategies and help from others. We look at how it differs from a fixed mindset, the prais
