The deep, gentle messages Charles M. Schulz entrusted to a dog and children.
From MS-DOS to Windows 11, the evolution of the OS that dominated the PC market. Tracing the trajectory of the rise of GUI, the limits of the 9x series, and the transition to the NT kernel that supports modern systems.
How a hobby project became the ruler of servers and the cloud.
Unix-based robustness and the magic of Cocoa Touch.
The fusion of UNIX power and a refined GUI. Exploring the shift from cooperative to preemptive multitasking, the legacy of NeXTSTEP, and the evolution of the Rosetta architecture
A modern development platform from Git basics to Pull Requests and CI/CD.
Why does the government make investments tax-exempt? The structure of the new NISA.
Behind the 'Three Tax Savings': Income Deduction, Tax-free Investment Returns, and Retirement Income Deduction.
How Japan's self-assessment taxation system fills the gap between withholding tax and year-end adjustments.
The layered structure and history of the world's most popular mobile OS.
Infrastructure design based on defensive programming and zero trust.
From the birth of stars to differentiation. What is inside the Earth? An in-depth look into the overall compositional structure of the Earth centered around iron, oxygen, and silicon.
From cookies to postbacks. The system architecture of performance-based advertising.
The mechanism by which the filament of an incandescent light bulb emits light and the mystery of its lifespan.
The principle by which N-type/P-type semiconductors and MOSFETs support the information society.
Microscopic springs and weights sense motion.
From liquid to solid. Reducing fire risks and dramatically increasing energy density.
How coal and water turn giant iron wheels.
Stefan-Boltzmann law and infrared sensors. A detailed explanation of the principles of uncooled sensors using microbolometer arrays, to wide-ranging applications from medical care to infrastructure inspection.
An exquisite balance between internal tensile stress and surface compressive stress.
