Often thought of as "impossible to solve on your own," the Rubik's Cube can actually be solved by anyone by memorizing a few "algorithms" (sequences). We explain the world of puzzles woven by group theory and mathematics.
Triggering the third AI boom and serving as the foundational technology for ChatGPT and others, 'Deep Learning' allows algorithms modeled after human neural networks to autonomously discover features. We explain how this works.
From home appliances and automobiles to factory machinery, the 'IoT (Internet of Things)' connects all sorts of things to the internet. We explain how sensor technology and communication networks gather data and collaborate with AI to create value.
What does the 's' in 'https' in a website URL mean? We explain how the encryption technology 'SSL/TLS' protects global e-commerce and communication security using a hybrid approach of symmetric and public keys.
The history of the iPhone began with Steve Jobs's legendary presentation in 2007. We look back at the trajectory of the smartphone revolution, from the elimination of physical keyboards to the birth of the App Store.
Mahjong, the intellectual table game from the East woven with 136 tiles. We explain the basic structure of this game with an exquisite balance of luck and skill, how to make melds (mentsu) and pairs (atama), and typical 'yaku' (winning hands).
Bluetooth is indispensable for modern wireless devices. Why does it connect stably without interference? We unravel the technology originating from military use called frequency hopping.
Wi-Fi connects smartphones and PCs to the internet. We explain from the perspectives of physics and communication engineering how invisible radio waves accurately and rapidly transport vast amounts of digital data.
The 'noise cancelling' feature that makes ambient noise disappear the moment you put on your earphones. This article deeply explains the underlying physics principle of 'wave interference' and its technological history.
VPN (Virtual Private Network) is essential for remote work. This article explains the mechanism of creating 'your own safe private tunnel' on the internet, where anyone can peek, using encryption and encapsulation.
A deep dive into Apple's history and technological innovation, from Steve Jobs and Wozniak's garage startup to the iPhone revolution and becoming the world's most valuable company.
The history of Windows evolution, starting from the CUI-based MS-DOS, transitioning to GUI, and reaching the robust NT architecture.
The history of Linux, which started as a hobby of a single student and came to dominate servers and smartphones (Android) around the world.
How macOS, the foundation of Apple, evolved by inheriting the bloodline of NeXTSTEP and UNIX.
The light emission principles of LEDs essential for modern lighting and displays, and the history of blue LED development that won the Nobel Prize.
The mechanism of the 'Doppler effect' where approaching sounds are heard higher and receding sounds are heard lower, and why it unravels the mysteries of the universe.
How Jack Ma revolutionized retail, digital payments, and cloud computing in China, creating one of the largest digital ecosystems in the world.
How "Big Blue" has continued to lead the IT industry for over 100 years.
The history of NEC, from a telecommunications giant to its hegemony with the PC-9800 series, submarine cables, and space technology.
The history of Panasonic, which started with Konosuke Matsushita's twin socket and transformed into an automotive battery manufacturer supporting Tesla.
