Categorywolhan

This blog post examines the scientific potential of CRISPR gene editing technology alongside the ethical and social controversies it raises.   Gene Editing Technology: An Innovation That Will Change Humanity’s Future? In July 2018, shocking news emerged that Chinese scientists had edited human embryos. This signified that human gene editing—long considered the domain of God and taboo...

In this blog post, we examine the development process of 3D printing technology and explore why its impact remains unnoticed in daily life.   3D printing may sound like cutting-edge technology, but it was actually first conceived over 30 years ago and is already deeply integrated into various industrial settings. The first 3D printer was developed in 1984 by Chuck Hull, and his invention was...

This blog post examines the safety of natural colorants by exploring the nature of cochineal extract color—used in products like strawberry milk and ketchup—and its potential side effects.   Cochineal Extract Pigment: A Red Natural Colorant Which would people prefer: pink strawberry milk in a transparent cup or white strawberry milk? Most would choose the pink-tinged cup. Visual effects like...

This blog post examines whether Lakatos’ research program can provide sufficient grounds for explaining scientists’ theoretical choices.   The philosophy of science seeks to answer questions such as: What constitutes science and what does not? Can we determine the methodology scientists follow when science develops, and if so, what is it? What mechanisms can explain the history...

Exploring the history and fundamental principles of railguns, this article examines the differences between sci-fi depictions and real-world railguns, details their technological evolution, and investigates their current practical application potential.   A colossal monster robot formed by multiple cars merging climbs a pyramid. Far out at sea, U.S. forces observe the situation and fire a...

This blog post explores how radio waves have permeated our daily lives beyond traditional broadcasting, evolving into various technologies like RFID and NFC.   When most people hear the word ‘radio,’ they likely think of DJ-hosted radio broadcasts or DMB. However, the term ‘radio’ extends beyond just a broadcasting medium; it also signifies radio waves and communication technology. Radio...

In this blog post, we explore the surprising phenomenon of hot water freezing faster, examining the causes and scientific principles behind the Mpemba effect.   The Hotter It Is, the Faster It Freezes? The Secret of the Mpemba Effect Unveiled During the sweltering summer, we enjoy eating frozen foods. Just as hot food heats up faster, you might think cold food should freeze faster. But a...

This blog post explores how deep learning-based GNMT technology has revolutionized the accuracy and naturalness of Google Translate.   Most people who have used Google Translate have likely encountered its errors at least once in the past. Before using Google Translate, you might have expected the service to solve everything, even if you didn’t know the foreign language. However, after...

This blog post explores the principle behind decaffeinated coffee maintaining its flavor and how the core technology, the supercritical fluid process, is utilized across various fields.   On my way home after class, I pass countless coffee shops, including Starbucks. Amidst the city’s busy daily life, coffee shops might just be our commas. Like tired office workers on their way home or...

This blog post explores why analog circuit design is regaining attention and playing a vital role in an era where digital technology has become commonplace.   Recently, the terms “electronic products” and “digital products” are often used interchangeably without distinction. Until the early 1990s, signals used inside electronic products were mostly analog—values that changed continuously...