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October 2025

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2025年10月11日 / Last updated : 2025年10月11日 桑子 研 Science

Chopstick Challenge: The Invisible Power of Air That Beats Super Strength!

Ken Kuwako, Science Trainer. Every Day is an Experiment. It’s like magic! Imagine being able to snap a hard chopstick (or a wooden ice cream stick!) clean in half using nothing more than a single sheet of newspaper. What’s your first reaction? You’re probably thinking, “No way that’s possible!” Well, get ready to be amazed. […]

2025年10月11日 / Last updated : 2025年10月11日 桑子 研 Science

The Secret Science of Melting: Why Your Heating Stops Working (The Hidden Drama of Palmitic Acid)

I’m Ken Kuwako, your Science Trainer. Every Day is an Experiment! Chocolate melts in your hand. Water turns into a solid block of ice in the freezer. All around us, “changes of state”—where a substance transforms its appearance—happen so naturally we barely notice. But have you ever closely watched what happens to a substance’s temperature […]

2025年10月10日 / Last updated : 2025年10月10日 桑子 研 Science

Zapping Your Way to Science: How to Build the Mind-Bending Moore’s Motor

I’m Ken Kuwako, a Science Trainer. Every day is an experiment. Is Static Electricity Performing Magic? The Whimsical ‘Moore’s Motor’ You know that “Zap!” you get when you touch a doorknob on a dry winter day, or how your hair stands up when you take off a sweater? That’s static electricity—it’s everywhere around us, a […]

2025年10月10日 / Last updated : 2025年10月10日 桑子 研 Science

Earthquake Lesson Revamp: The Mind-Blowing Digital Tool That Makes P-Waves and S-Waves Click!

Ken Kuwako, Your Science Trainer. Every Day is an Experiment. Today, I’m thrilled to share an absolute gem of a digital tool that will dramatically spice up your earthquake lessons. A colleague told me about this resource, created by Dr. Kiwamu Nishida from the Earthquake Research Institute at the University of Tokyo, and honestly, I […]

2025年10月9日 / Last updated : 2025年10月9日 桑子 研 Science

The 5 Minute Magic Blackboard Trick: Perfect Diagrams with a Projector (No More Chalk Stress!)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Look at those precise, beautiful curves appearing on the blackboard—curves too perfect to be drawn with chalk. Doesn’t it look like magic? This is actually a simple trick using a projector, a technique called “Inverted Black and White Projection.” Today, I’ll explain how this […]

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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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