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2025年9月20日 / Last updated : 2025年9月20日 桑子 研 Science

Too Late Once You See It! Learn the Secret of the ‘0.2-Second Wall’ with the Banknote Catch Challenge (Reaction Speed)

Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Imagine a 1000-yen bill fluttering right in front of you. What if you could snatch it with your fingers? If you could, it’s yours! Wouldn’t you want to try a challenge like that? 😉 At first glance, it seems like a super easy […]

2025年9月19日 / Last updated : 2025年9月19日 桑子 研 Science

Why Can’t Sweet Corn Pop? The Explosive Secrets of Volcanoes and Magma

I’m Ken Kuwako, a science trainer. Every day is an experiment. 【This article is also available as a radio broadcast!】 You can’t make popcorn from the sweet corn sold at the supermarket. The truth is, popcorn comes from a special kind of corn called “Popcorn Corn.” If you touch it, you’ll find it’s incredibly hard. […]

2025年9月19日 / Last updated : 2025年9月19日 桑子 研 Science

Can You Crack This Equation? The Brilliant Code Hidden in MIT Chocolate

Hello, I’m Ken Kuwako, the Science Trainer. Every day is an experiment. Can you solve this equation? The incredibly clever code hidden in MIT’s chocolate A sudden challenge for you, science lovers! Can you crack the “code” written on this chocolate wrapper? This isn’t just any chocolate. My friend O from university showed it to […]

2025年9月18日 / Last updated : 2025年9月18日 桑子 研 Science

The Universe is So Vast It’ll Tire Your Fingers! What If the Moon Was Just One Pixel?

I’m Ken Kuwako, a Science Trainer, and for me, every day is an experiment! What if the Moon Was Just a Single Pixel? A Vast Solar System Journey at Your Fingertips! Have you ever seen a single, glowing “pixel” on your computer screen? That tiny dot holds the key to experiencing our magnificent solar system […]

2025年9月18日 / Last updated : 2025年9月18日 桑子 研 Science

Draw Snowflakes with Scratch! Create Stunning Fractals Using the “Magic of Self-Calling”

I’m Ken Kuwako, a Science Trainer, and for me, every day is an experiment! Snowflakes, jagged coastlines, and even the broccoli on your dinner plate. Do you know the “secret to their beauty” that they all share? It’s a fascinating property: a small part, when magnified, reveals a shape uncannily similar to the whole. 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.

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