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August 2025

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2025年8月29日 / Last updated : 2025年8月29日 桑子 研 Science

Electrifying Everyone to Dance?! Recreating the Edo-Period Entertainment “Hyakunin Odoshi” (Static Electricity Experiment)

[speech_bubble type=”rtail” subtype=”L1″ icon=”5.png” name=”Dr. Ken”]I love static electricity! I’m Ken Kuwako, a science trainer. Have You Heard of “Hyakunin Odoshi”? Have you heard of “Hyakunin Odoshi”? First, please watch this video. This is #HyakuninOdoshi. Many of you may have done this in school. What is Hyakunin Odoshi?In the Edo period, #GennaiHiraga created a device […]

2025年8月27日 / Last updated : 2025年8月27日 桑子 研 Science

Using the “XXY OSCILLOSCOPE” Web App in Physics Class: Making Waves Visual and Fun

I’m Ken Kuwako, a science trainer. Every day is an experiment. A great tool for class! The “XXY OSCILLOSCOPE” web app makes showing waves fun When you’re teaching about the nature of sound or the properties of waves in a middle school science class, it can be hard for students to really grasp the concepts. […]

2025年8月26日 / Last updated : 2025年8月26日 桑子 研 Science

Dynamic Chemistry Experiment: The Thermite Reaction, a Lesson in Oxidation-Reduction and Exothermic Processes (Aluminum Steals Oxygen!

I’m Ken Kuwako, a science trainer. Every day is an experiment. Have you ever heard the term “thermite reaction“? It’s a very dramatic chemical reaction where a mixture of iron oxide and aluminum powder is ignited, producing intense heat and light as iron is formed. This experiment, which feels like a close-up of fireworks and […]

2025年8月25日 / Last updated : 2025年8月25日 桑子 研 Science

From Tablecloth Tricks to Rockets! The Fascinating World of the “Equation of Motion”

I’m Ken Kuwako, a science trainer. Every day is an experiment. This article is also available as a podcast! Have you ever seen the formula “F = ma”? It’s the equation of motion, one of the most famous formulas in high school physics. We use the word “force” every day, but what exactly is it? […]

2025年8月25日 / Last updated : 2025年8月25日 桑子 研 Science

【Homemade Fireworks】Let’s Make a Snake Firework! A Living Thing?

I’m Ken Kuwako, a science trainer. Every day is an experiment. When you think of summer, you think of fireworks. While beautiful fireworks lighting up the night sky are great, this time we’d like to introduce a unique type of firework that seems to wriggle and grow as if it were alive. It’s called a […]

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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.

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