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2026年1月6日 / Last updated : 2026年1月6日 桑子 研 Science

Reveal the Invisible Force! Exploring Action and Reaction with a Force Sensor

Hi, I’m Ken Kuwako, your Science Trainer. To me, every day is a new experiment! “If only we could actually see force…” Have you ever felt that way while sitting in a science class—or perhaps while teaching one? In the world of physics, “force” is the foundation of everything. However, because it is invisible, trying […]

2026年1月5日 / Last updated : 2026年1月5日 桑子 研 Science

Can’t See It in the Textbook? A Circular Motion Tool That Makes Velocity and Acceleration Directions Instantly Clear

I’m Ken Kuwako, your Science Trainer. To me, every day is an experiment. Think about the spinning teacups at an amusement park, the moon drifting through the night sky, or even your clothes tumbling in the washing machine. Our world is absolutely full of circular motion—things going round and round. However, as soon as we […]

2026年1月4日 / Last updated : 2026年1月4日 桑子 研 Science

Is the Playground Slide a Giant Generator? Exploring Static Electricity with Kids Through Play

I’m Ken Kuwako, Science Trainer. To me, every day is a laboratory. January has arrived, bringing with it those crisp, bone-dry winter days. This is the season when we’re often startled by that “zap!” the moment we touch a doorknob. But did you know that the rounded plastic slides at your local park are actually […]

2026年1月3日 / Last updated : 2026年1月3日 桑子 研 Science

Escape the Chemistry Labyrinth: Master Mole Calculations with One Simple Flowchart!

I’m Ken Kuwako, your science trainer. Every day is an experiment! “I started learning chemistry, but the moment the mole (mol) appeared, my mind went totally blank…”Have you ever felt that way? The mole is the first major wall students hit in high school chemistry. This unit, which involves counting invisible, microscopic particles, is often […]

2026年1月2日 / Last updated : 2026年1月2日 桑子 研 Science

The Shock of a Simple “I” That Changed the World! The Hidden Story of Electrons and Magnets Inside CRT TVs

I’m Ken Kuwako, your science trainer. Every day is an experiment. “TVs are so thin these days, but have you ever wondered why the old ones were so bulky and heavy?” That chunky CRT (Cathode Ray Tube) TV is a rare sight in thrift stores now. But inside that massive box lies a thrilling drama […]

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運営: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。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
My mission is to share the joy, wonder, and excitement of science with as many people as possible. As a Science Trainer, I stay busy supervising and appearing on science-themed TV programs, hosting hands-on experiment workshops, and authoring science books.

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