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2025年10月6日 / Last updated : 2025年10月6日 桑子 研 Science

Invisible Intrigue: The 3 Clues That Reveal Carbon Dioxide’s True Identity

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. The fizz in soda pop, the bubbles that dissolve a bath bomb—our everyday lives are full of mysterious bubbles. The hidden identity of many of these bubbles is a gas called carbon dioxide (CO 2 ​ ). Would you like to try a science […]

2025年10月5日 / Last updated : 2025年10月5日 桑子 研 Science

The Pro’s Guide: Turn Drugstore Peroxide into Pure Oxygen in Minutes (Tips Not Found in Textbooks!)

I’m Ken Kuwako, your Science Trainer! Every Day is an Experiment. We all know hydrogen peroxide as that common disinfectant, “Oxydol.” But did you know you can actually extract oxygen—the gas vital for our very existence—from this liquid? Today, I’m sharing a classic science experiment, often done in middle school, that uses simple, everyday materials […]

2025年10月5日 / Last updated : 2025年10月5日 桑子 研 Science

The Secret Language of Scientists: Find Out What Your Measurements Really Mean!

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! You divide a number on your calculator and get “7.14285714…”. On a test, how many of those digits should you actually write down? In elementary and high school math, you’re usually told something like, “Round to the nearest hundredth.” But in the world of […]

2025年10月5日 / Last updated : 2025年10月5日 桑子 研 Science

The “Hyakunin Odoshi”: How a Hundred-Person Static Shock Became the Ultimate Science Show of Japan’s Edo Period

I’m Kuwako Ken, your Science Trainer. Every day is an experiment. Crack! Have you ever touched a doorknob in winter and involuntarily cried out? Static electricity is all around us, but what would happen if dozens of people held hands and experienced this small crack all at once? This was, in fact, a spectacular science […]

2025年10月5日 / Last updated : 2025年10月5日 桑子 研 Science

The Science Thriller: The Magical Ammonia Fountain and the 1-in-3 Chance of Success!

I’m Kuwako Ken, a Science Trainer. Every day is an experiment. A bright red fountain erupting inside a flask… Have you heard of the magical “Ammonia Fountain Experiment”? Many of you might have seen it demonstrated in a science class. This beautiful phenomenon is actually a compact, fascinating science experiment that utilizes “a surprising property” […]

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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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