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2025年8月30日 / Last updated : 2025年8月30日 桑子 研 Science

“Visible Air Cannon” with Dry Ice! Make it with a Milk Carton! ~Smoke Rings Dancing Through the Room~

[speech_bubble type=”rtail” subtype=”L1″ icon=”5.png” name=”Kuwako Ken”]I’m Ken Kuwako, a science trainer. Every day is an experiment. 【This article is also available on the radio!】 When you hear the term “air cannon,” you might just think, “it’s something that shoots out air…” But when the movement of air actually becomes visible, it’s a truly amazing and […]

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? […]

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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.

Recent posts

[Shocking!] Can You “Keep a Bird” with Just One Straw!? A Real Water Whistle Experiment at Home

2026年2月16日

Make Your Own Straw Wind Instrument with Kids! Snip, Snip—Why Does Cutting It Make the Sound Higher?

2026年2月15日

Why Does an Ambulance Sound Change? Uncover the Doppler Effect with Scratch!

2026年2月14日

Secrets of Static Electricity! Try This Cool Experiment with Styrofoam and Paper Bits (Dielectric Polarization)

2026年2月13日

Make It Snow in a Test Tube! Sparkling Crystal Christmas at Home (Ammonium Chloride Recrystallization Experiment)

2026年2月12日

Where Did the Electricity Go? Uncover the Emotional “V-Shaped Graph” of Neutralization! (Barium Hydroxide × Sulfuric Acid Experiment)

2026年2月11日

The Secret of Fizzy Reactions! Learn Chemical Changes with Citric Acid × Baking Soda (Endothermic Reaction)

2026年2月10日

Learn How Engines Work with a Shocking “Pop!” — The Secret of Alcohol Explosion Experiments (First Law of Thermodynamics)

2026年2月9日

What Happens When Acid Meets Base? Create the Crystals of Neutralization — A Visible Chemistry Drama (HCl & NaOH Experiment)

2026年2月8日

What Happens If You Jump on a 300 km/h Bullet Train? The Half Super Ball Experiment Explains It!

2026年2月7日

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