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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Chemistry
A Solid That Vanishes Without Melting: Sublimation
Sublimation is the process in which a solid turns directly into a gas without passing through the liquid state. This article covers the principle and conditions behind it, everyday
Information technology
Bugs Reveal Themselves When You Talk: Rubber Duck Debugging
Rubber duck debugging is a debugging method in which you find problems by explaining your code, line by line and out loud, to a rubber duck on your desk. This article covers where
Physics
The Secret Behind How Sunglasses Erase Glare: Polarization of Light
Polarization of light is the state in which light’s vibrations are lined up in one direction. This article covers how polarization works, including Malus’s law, the three ways ligh
Economics
Too Invested to Quit: The Sunk Cost Fallacy
Why do we sit through a dull movie just because we paid for the ticket? This guide explains sunk costs, the bygones principle, why people fall into the sunk cost fallacy, classic e
General knowledge
Joke or Sincere? Poe’s Law
Poe’s Law is the internet rule of thumb that, without a clear sign of the author’s intent, a parody of extreme views will inevitably be taken as sincere by someone. We look at wher
Food & nutrition
When Nuttiness Turns Stale: Rancidity
Rancidity is the process in which the fats in food break down by reacting with oxygen, water, or enzymes, producing unpleasant smells and flavors and lowering quality. We look at i
Physics
Proof That the Earth Turns: The Foucault Pendulum
The Foucault Pendulum is a device that shows the Earth's rotation with your own eyes: a heavy bob on a very long wire whose plane of swing slowly turns relative to the ground. We l
Robotics
Three Promises Robots Must Keep: Asimov’s Three Laws of Robotics
Asimov’s Three Laws of Robotics are a set of prioritized rules: a robot must not harm humans, must obey human orders, and must protect itself. We look at how the laws were born, wh
Design
Less but Better: Dieter Rams’ Ten Principles for Good Design
Dieter Rams’ Ten Principles for Good Design sum up, in ten sentences, the idea that design is not decoration but the work of making things useful, understandable and long-lasting.
Tourism studies
When Your Dream City Disappoints: Paris Syndrome
Paris syndrome is the severe confusion some travelers feel when a long-dreamed-of destination falls short of their expectations. We look at how the name came about, its main sympto
Earth science
Cold Seawater Rises from the Deep: Upwelling
Upwelling is the process in which cold, nutrient-rich water from the deep rises to fill the gap left when wind pushes surface water away. We look at how it works, where it happens,