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2025年11月9日 / Last updated : 2026年1月3日 桑子 研 Science

Why Does Light Shake? The Hidden “Fleming’s Left-Hand Rule” Inside a Stylish Lamp (Edison Bulbs & Vibra Lamps)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! 【This article is also available on Radio!】 Imagine you’re relaxing at a cafe when you notice a light bulb nearby. Suddenly, it starts swaying and dancing like a living creature. Would you be able to spot the “scientific trick” hidden behind its mysterious movement? […]

2025年11月9日 / Last updated : 2025年11月9日 桑子 研 Science

Why Does the Magnet Stop It? Unveiling the Secret of “Change-Hating Electricity” with a Coil Swing Experiment!

I’m Ken Kuwako, Science Trainer. Every day is an experiment. Imagine a piece of metal stopping dead in its tracks without anything touching it. Doesn’t that sound like science fiction or magic? What if I told you you could easily experience this phenomenon using just items you already have at home? Today, I’m sharing an […]

2025年11月9日 / Last updated : 2025年11月9日 桑子 研 Science

Is This Roadside Weed a Dicot or a Monocot? The Moment the Textbook “Rules” Fall Apart

I’m Ken Kuwako, Science Trainer. Every day is an experiment. “The Observation Lesson on Ribwort Plantain” – Dicot or Monocot? Exploring a Plant That Breaks the Rules of Classification! In middle school science, we learn the terms “dicotyledons (dicots)” and “monocotyledons (monocots).” Textbooks often present a neat way to classify them: “If it has two […]

2025年11月8日 / Last updated : 2025年11月8日 桑子 研 Science

The Science Teacher’s Secret Weapon: Cutting 5 Hours of Grading Down to 2 with Digital Systems

I’m Ken Kuwako, a Science Trainer. Every day is an experiment. [This article is also available on the radio!] While preparing for experiments and innovating in class are essential, grading tests to accurately measure each student’s comprehension is an equally critical task. Grading a large volume of answer sheets within a limited timeframe and then […]

2025年11月8日 / Last updated : 2025年11月8日 桑子 研 Science

The 10x Secret: How the Pascal Cable Turns a Safe 5 Amps into Mind-Blowing Electromagnetism!

Hello! I’m Kuwako Ken, your Science Trainer. Every day is an experiment! “Electricity” and “Magnetism.” Do you remember the familiar “Right-Hand Screw Rule” or “Fleming’s Left-Hand Rule” from your science classes? They are textbook staples, but the reality is that when you actually try the experiments, the compass needle only moves a “little bit,” or […]

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運営者: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.

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2025年12月31日

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2025年12月30日

A 10-Kilometer Cliff Time Travel! Discover Earth’s Memories at Choshi’s Byobugaura

2025年12月29日

Twisting Light to Create Color at Home! Turn Scotch Tape into Magical Paint — Make a Polarized Light Kaleidoscope

2025年12月28日

【Quiz】Which Is Heavier After the Cut? A Carrot at the Balance Point! – Exploring Torque with Vegetables

2025年12月27日

Visualizing Physics with a Flying Hammer! Revealing the Beautiful Path of the Center of Mass Using a Smartphone App

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When Your Fridge Becomes a Lab: The Fascinating World of Standing Waves Drawn with Springs and Magnets

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