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September 2025

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2025年9月11日 / Last updated : 2025年9月11日 桑子 研 Science

Hold Science in Your Hand! Unlocking the Secret of the Vein’s One-Way Valve

Hi, I’m Ken Kuwako, a science trainer. Every day is an experiment. Have you ever thought about how blood flows through your body? With every beat of your heart, blood circulates throughout your entire body, delivering energy and oxygen. Imagine this: the blood pumped by your heart travels all the way to the tips of […]

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

From “EEK!” to “THANK YOU!”: The Surprising Truth About Japan’s Largest Huntsman Spider

I’m Ken Kuwako, your science trainer. Every day is an experiment. Have you ever shrieked, “A spider!” and jumped in surprise? When I found a huntsman spider at school, I got that same jolt. The one I saw before was so big and imposing that it made me shriek, “Yikes!” But the one I found […]

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

Uncovering the Physics of Mermaid Lagoon: A DisneySea Adventure

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Have you ever been to an amusement park and noticed the scientific secrets hidden in plain sight? The acceleration of a roller coaster, the graceful arc of a fountain’s water, the countless magical illusions—all of them are precisely crafted using the laws of physics. […]

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

Unlocking the Wonders of the Onion Cell: A Teacher’s Guide to Inspiring awe in the Classroom

I’m Ken Kuwako, your science trainer. Every day is an experiment. Onion cell observation is a classic experiment in middle school science. But are you looking for a way to go beyond the textbook and spark your students’ “why?” and “wow!” moments? In this article, I’ll share a few tweaks to the standard procedure and […]

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

The Sea Urchin’s Pillow: Unraveling the Science and Romance of “Tako-no-Makura”

I’m Ken Kuwako, a science trainer, and for me, every day is an experiment. “What did you find when you went to the beach this summer?” I often start my classes with that question. Today, I’d like to share an interesting topic that’s perfect for engaging students. Recently, while walking along the beach, I came […]

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運営者: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。理科教師として勤務する傍ら、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
I want to share the fun, wonder, and excitement of science with as many people as possible. In addition to my work as a science teacher, I also work as a "Science Trainer," providing scientific supervision for and appearing on TV programs, holding hands-on science workshops, and writing science books.

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