Earth science
When the Whole Planet Froze Over: Snowball Earth
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
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810 articles found
General knowledge
The World of Cat Language and Behavior
Cats are independent and charming animals loved by many people. To gain a deeper understanding of their behavior and characteristics, we need to examine their physiological traits,
Chemistry
A Different Color for Every Element: The Flame Test
A flame test identifies metal elements by the unique color of light they emit in a flame. This piece covers how the colors arise, Bunsen and Kirchhoff’s spectroscopy, fireworks, an
Chemistry
The Reaction That Slowly Eats Away at Iron: Corrosion
Corrosion is the process by which a metal reacts chemically with its surroundings, loses its original properties, and breaks down. This piece covers how iron rusts, what happens wh
Chemistry
Key Effects of Metabolic Processes on Health and Disease
Metabolism is an essential process that supports all physiological functions in living organisms, playing an important role in maintaining and regulating life activities through va
Food & nutrition
A Map for Reading Post-Meal Blood Sugar: The Glycemic Index (GI)
The glycemic index is a value that shows how quickly and how much blood sugar rises after eating a particular food, relative to glucose (or white bread) set at 100. This article co
Education
Effective Teaching Methods Using Educational Psychology
Education is not simply about conveying knowledge; it is a complex process of bringing out students' full potential. Educational psychology plays an important role in this process.
Physics
The Crystal That Makes Electricity When Pressed: The Piezoelectric Effect
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
Library & information science
Research That Wakes After a Long Sleep: Sleeping Beauties in Science
A “Sleeping Beauty in Science” is a paper that goes almost uncited for years after publication and then suddenly draws a surge of citations. This article covers what the term means
Tourism studies
Characteristics of Tourism Behavior and Stages of Tourist Decision-Making
Tourism is an activity in which individuals or groups visit other regions or countries for various purposes, such as relaxation, exploration, and education. These activities are la
General knowledge
Headlines That End in a Question Mark Usually Mean No: Betteridge's Law of Headlines
Betteridge's law of headlines is the adage that any headline ending in a question mark can almost always be answered with a single word: no. This article covers how the law came ab
Information technology
What Are the Applications and Outlook of the Internet of Things (IoT)?
The Internet of Things connects everyday objects to the internet so they can collect and share data. This article looks at what IoT is, the key technologies behind it, the fields w