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2025年8月19日 / Last updated : 2025年8月19日 桑子 研 Science

The Law of Electromagnetic Induction: From “Power Plants” to “Hybrid Cars”! Unveiling the “Invisible Magic” That Powers Modern Society

The term “electromagnetic induction” might sound complicated, doesn’t it? You may have heard of “electromagnetic waves” and “electromagnets,” but “electromagnetic induction” might be a bit of a mystery. However, this phenomenon is an incredibly fascinating principle that is essential to our daily lives. Have you ever wondered as a child, “Wouldn’t it be great if […]

2025年8月19日 / Last updated : 2025年8月19日 桑子 研 Science

How to Build the World’s First Motor: The Faraday Motor

Have you ever seen a motor like this? First, you have to watch this video. I guarantee you’ll be amazed! For some reason, a piece of aluminum foil is spinning around and around on a battery. At first glance, it looks like it’s made of nothing but aluminum foil, a battery, and a thumbtack, but […]

2025年8月18日 / Last updated : 2025年8月18日 桑子 研 Science

Creating a Volcano Was a Blast! A Recipe for an Explosively Fun Experiment (A Volcano Model Made with Plaster and Baking Soda)

Science class is always most exciting when you can get hands-on. As teachers, there’s nothing more rewarding than seeing our students’ eyes light up and hearing them exclaim, “I get it!” I recently taught a lesson on volcanoes with a student teacher, Mr. H, and our eruption experiment turned out to be an incredible, inquiry-driven […]

2025年8月18日 / Last updated : 2026年1月29日 桑子 研 Science

A Hot Air Balloon You Can Fly at Home! Build a Mini Hot Air Balloon in Just 15 Minutes – A Simple Experiment to Experience Buoyancy

I’m Ken Kuwako, your science trainer. Every day is an experiment! 【Listen to this article on the radio!】 Have you ever dreamed of drifting through the endless blue sky in a giant hot air balloon? There is something truly magical about the moment a massive balloon gently lifts off the ground. I remember a trip […]

2025年8月18日 / Last updated : 2025年8月18日 桑子 研 Science

Making and Disposing of Limewater (Do You Buy Limewater? It’s Actually Easy to Make in a Science Lab!)

In a science class, when we talk about detecting carbon dioxide, limewater is the standard solution. But are you a teacher who buys it every time? Of course, it’s one way to save time. However, limewater is actually very easy to make yourself! Why spend money and precious lab space on something that’s mostly water? […]

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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

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

A Squeeze of Lemon Is a Chemistry Experiment! Your Dining Table Turns into a Science Lab (Neutralization)

2026年2月6日

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