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October 2025

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2025年10月3日 / Last updated : 2025年10月3日 桑子 研 Science

The Invisible Force: How to Make Static Electricity Dance with Just a Balloon!

Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment! That mysterious “snap” and “crackle” when you take off your sweater on a cold winter day. The way your hair stands up poof! after rubbing it with a plastic ruler. Everyone has experienced these things, right? These phenomena, which seem almost like magic, […]

2025年10月2日 / Last updated : 2025年10月2日 桑子 研 Science

Unlock the Rainbow: How to Make a Magical “Spectroscopy Mask” and See the Universe’s Hidden Code

I am Kuwako Ken, your Science Trainer. Every day is an experiment. The “light” we see every day—wouldn’t it be exciting to learn that its true identity is actually a magnificent bundle of rainbows, made up of many colors? In this article, I’ll show you how to make a magical “Spectroscopy Mask” that lets you […]

2025年10月2日 / Last updated : 2025年10月2日 桑子 研 Science

Walk Your Soda Can with a Balloon: The Secret of Electrostatic Induction

Hi, I’m Ken Kuwako, your Science Trainer! Every day is an experiment. That familiar crackle when you take off a sweater in winter, or the classic fun of using a plastic ruler to make your hair stand on end… That’s Static Electricity, and it’s all around us. But did you know you can use this […]

2025年10月1日 / Last updated : 2025年10月1日 桑子 研 Science

Just Mix It and Reach 80°C!? Discover the Heat of Rust with a DIY Hand Warmer! Learn the Science of Exothermic Reactions by Making Your Own

I’m Ken Kuwako, a Science Trainer. Every Day is an Experiment. On a cold winter day, the gentle warmth of a heat pack tucked into your pocket feels like a gift from the heavens, doesn’t it? But have you ever stopped to imagine what is actually happening inside that small pouch? That little bag is, […]

2025年10月1日 / Last updated : 2025年10月1日 桑子 研 Science

Catchy Title Suggestion: Rock Detectives: Unlocking Earth’s Past in Your Hand

I’m Ken Kuwako, a Science Trainer, and for me, every day is an experiment. Think about a common, ordinary rock lying on the side of the road. Wouldn’t it be exciting if every single one was a “time capsule” delivered from deep within the Earth’s past? If you ask a child, “What do you see […]

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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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