Chemistry
The Hill Every Reaction Must Climb: Activation Energy
Why don’t books on a shelf catch fire by themselves? Reactions must first climb an energy hill called activation energy. This piece covers the Arrhenius equation, why heat speeds r
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792 articles found
Physics
The Diverse Applications of Optical Technology That Transform Everyday Life
Optics is a field of scientific research concerned with light and vision, exploring the properties of light and its interactions in depth. Light is an essential element of our ever
Library & information science
Picking Search Results Like Blueberries: Berrypicking
Berrypicking, named by Marcia J. Bates in 1989, is a model of search in which queries and interests evolve and useful information is gathered bit by bit—unlike classical retrieval
Social welfare
Unemployment Benefits: Essential Eligibility Requirements and How to Claim Them
Unemployment benefits are an important social safety net that provides financial stability when workers unexpectedly lose their jobs. Provided as part of the employment insurance s
Journalism & communication
The Thoughts That Come After the News: Media Priming
Media priming is the phenomenon in which issues the media highlights become the standards we use to judge people and policies later. From Iyengar and Kinder’s 1987 experiments and
Tourism studies
The Urge to Leave and the Place That Calls: Push-Pull Theory
Why do people travel, and why do they choose a particular place? This article explains the origins of push-pull theory, push factors as travel motives, pull factors as destination
Film & media
The Grammar of Space: The 180-Degree Rule
When two people face each other in conversation on screen, we never lose track of who is sitting where, thanks to a filmmaking convention known as the 180-degree rule. This article
Physics
When a Small Force Becomes a Big Sway: Resonance
Why does a swing go higher and higher when you push it in rhythm? This article explains what resonance and natural frequency mean, how the swaying grows, its uses in musical instru
Education
Curriculum Design and Innovation Strategies for Future Education
The educational environment of the 21st century is changing rapidly, and curriculum design and innovation are essential to keep pace with these changes. To meet the complex and div
Design
Design That Shows You What to Do: Affordance
Affordance is the relationship in which an object’s physical and perceptual characteristics suggest what actions a user can take. This article covers its origins, perceived afforda
Economics
Does Destruction Revive the Economy? The Broken Window Fallacy
Can rebuilding after a disaster or war really make a society richer? This piece explains the broken window fallacy through Frédéric Bastiat’s 1850 parable of the seen and the unsee
Chemistry
Particles That Neither Dissolve Nor Sink: Colloids
A colloid is a mixture in which particles too small to see are evenly dispersed and suspended in another substance. This article explains how colloids differ from solutions, the co