Film & media
Shooting Deep Night at Midday: Day for Night
Day for night is a filmmaking technique that makes scenes shot in daylight look like night. This article covers why filmmakers shoot night in the daytime, the four main ways to fak
Articles to explore
You are browsing the English interface. Articles without a published translation are clearly marked and open in Korean.
810 articles found
Design
Core Elements and Essential Principles of Graphic Design
Graphic design goes beyond simply creating visually appealing images: it plays an important role in communicating clear, powerful messages and maximizing brand value. Today's desig
Robotics
Reaching Out a Hand from Afar: Teleoperation
Teleoperation lets a person control a distant machine directly, sending their hands and eyes where people cannot safely go. This article covers its origins in 1940s–50s nuclear lab
Robotics
The Machine That Crawled After Light: Grey Walter’s Tortoises
Grey Walter’s Tortoises were small robots built in the late 1940s by British neurophysiologist William Grey Walter that explored their surroundings on their own using just two vacu
General knowledge
The Importance and Preventive Benefits of Regular Health Checkups
Regular health checkups have become an important means of maintaining personal health and improving quality of life in modern society. Through regular checkups, many people can det
Physics
String Theory: New Physics Exploring the Foundations of the Universe
The universe is a place with a structure so vast and complex that it surpasses our perception and imagination. Various theories have emerged to unravel the secrets hidden within it
General knowledge
When the Number Becomes the Goal: Goodhart's Law
Why does a measure stop being a good measure once it becomes a target? This article explains the origin and logic of Goodhart's law, examples such as the cobra effect, and how to u
Film & media
A Composition That Divides the Frame into Nine: The Rule of Thirds
The rule of thirds is a composition principle that divides the frame into nine equal parts and places key subjects on the lines or where they meet. This article covers its basic pr
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
Physics
A Thunderclap from a Clear Sky: The Sonic Boom
A sonic boom is the loud sound made when the shock waves created by an object moving faster than sound reach the ground. This article explains how sonic booms form, the small sonic
Information technology
The Beginning of the AI Era: How to Use ChatGPT
Advances in AI technology are bringing new changes to our lives. We can now interact with artificial intelligence (AI) that thinks and learns like humans. Among these technologies,
Journalism & communication
A Neighbor’s Word Over the Newspaper: The Two-Step Flow of Communication
Why does a friend’s recommendation often sway us more than an ad? This article explains Lazarsfeld’s two-step flow theory—how media messages reach opinion leaders first and then sp