December 2025

2025年12月1日 / Last updated : 2025年12月1日桑子研 Science

Tug-of-War Titan: The Mini 4WD Secret to Mastering Friction (and Why Heavier Always Wins!)

I’m Ken Kuwako, Science Trainer. Every day is an experiment. Science Experiments with Wild Mini 4WD Cars Have you ever heard of Tamiya’s “Wild Mini 4WD”? The standard Mini 4WD is a sleek machine built for speed, but the Wild version is a rugged powerhouse. It has tires two to three times larger than the […]

著者：桑子研（くわこ　けん）
　科学の楽しさや不思議、感動を多くの人に届けていきたい。理科教師として勤務する傍ら、サイエンストレーナーとしてテレビ番組の科学監修・出演、実験教室、科学本執筆なども行っています。

Author: Ken Kuwako
I want to share the fun, wonder, and excitement of science with as many people as possible. In addition to my work as a science teacher, I also work as a "Science Trainer," providing scientific supervision for and appearing on TV programs, holding hands-on science workshops, and writing science books.