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

The Dancing Magnet: How to Listen to AC Current’s Secret Sound

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Did you know that electricity has a “sound”? Of course, you can’t hear anything by putting your ear up to a power line. But what if that electricity is Alternating Current (AC)? The power that runs our homes actually has a unique rhythm—you could […]

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

Science in the Kitchen! Discover the Secrets of Vertebrates Through a Dried Sardine Dissection

I’m Ken Kuwako, a Science Trainer. Every Day is an Experiment. When teaching about the backbones of vertebrates in a science class, one of the best ways for students to deepen their understanding by observing a real skeleton is to conduct “Dried Sardine Dissection.” By using easily accessible dried sardines (niboshi) and having students perform […]

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

Beyond the Beep: Why Modern Science Labs are Ditching the Timer for Real-Time Sensors.

Ken Kuwako, Science Trainer. Every Day is an Experiment. “Da-da-da-da-da!” Hearing this sound, many of you might recall the “recording timer” used in your middle school science lab. The experiment where dots are marked on a strip of paper tape. While that experiment is excellent for recording motion, what if the change in speed of […]

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

Not Just a Toy! “Do Horses Walk on Tiptoes?” — How Students Learn with Realistic Animal Figures (Plus a Fun Quiz!)

Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment. 【This article is also available as a radio broadcast!】 Ready to unlock the door to science with a “Zoo in the Palm of Your Hand”? When you hear “biological classification” in class, it might sound like a tough subject, maybe just a matter […]

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

Light It Up! Hands-On Experiments to Nail the Law of Reflection and Diffuse Reflection

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. [This article is also available as a podcast!] Have you ever felt that frustration when teaching the unit on light, where the textbook definitions for the “Law of Reflection” and “Diffuse Reflection” just don’t resonate with your students? You explain, “Light bounces off like […]

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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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