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November 2025

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2025年11月17日 / Last updated : 2025年11月17日 桑子 研 Science

Squish the Air! A Visual Experiment to Reveal Boyle’s Law

Ken Kuwako, Science Trainer. Every day is an experiment. Air is invisible, yet it’s always pushing us with surprising strength. What do you think would happen if you trapped that air and squeezed it even tighter? Today, we’re going to dive into the mysterious relationship between air’s “force (pressure)” and its “size (volume)” with an […]

2025年11月16日 / Last updated : 2025年11月17日 桑子 研 Science

The Marshmallow Massacre: What a Vacuum Chamber Teaches Us About Air Pressure and Space Travel

Ken Kuwako, Science Trainer here. Every day is an experiment. Can you imagine a fluffy marshmallow puffing up like a balloon or shriveling down like a raisin? Recently, I stumbled upon my students doing exactly that in an elective class—a fascinating experiment! I couldn’t help but exclaim, “That’s cool!” and record the action. The experiment […]

2025年11月15日 / Last updated : 2025年11月15日 桑子 研 Science

The 90% Rule: A Science Trainer’s Ultimate Checklist to Stop Your Workshop from Turning into a Nightmare

I’m Ken Kuwako, your Science Trainer. Every Day is an Experiment. That moment when participants’ eyes light up with a “Wow!” or “I get it!”—that’s the greatest thrill of hosting a science workshop. But that moment of “magic” can turn into a “nightmare” in an instant. This usually happens because of a simple preparation slip-up, […]

2025年11月15日 / Last updated : 2025年11月15日 桑子 研 Science

“Where Is the Image?” Hands-On Mirror Magic with a Half-Mirror – A Fun Experiment Leading to the Law of Reflection

I’m Ken Kuwako, Science Trainer. Every day is an experiment! Every time you look in the mirror, you see yourself reflected. But have you ever paused to wonder, “Exactly where is the ‘me’ in the mirror?” In science class, we learn the rule: “The distance from the mirror to the object is equal to the […]

2025年11月15日 / Last updated : 2025年11月15日 桑子 研 Science

Wireless Wonders: Experience the ‘Invisible Force’ of Faraday’s Induction

I’m Ken Kuwako, a science trainer. Every day is an experiment. You can charge your smartphone just by placing it on a charging pad. You can pass through a ticket gate simply by tapping an IC card. Isn’t that amazing? All of these rely on technology that transmits electricity or information without a physical cord. […]

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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.

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