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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” […]

2025年10月4日 / Last updated : 2025年10月4日 桑子 研 Science

The 31-Degree Tilt: The Scientific Secret to Running in the Rain Without an Umbrella

I’m Kuwako Ken, your Science Trainer. Every day is an experiment. Caught in a sudden downpour without an umbrella! Have you ever stopped to wonder what’s the best way to reach your destination while staying the driest? This is actually a classic physics question that has even appeared on university entrance exams! It remains a […]

2025年10月4日 / Last updated : 2025年10月4日 桑子 研 Science

Amazing Experiment! How to Make Shocking Static Water, Electro-Tea & Electric Drinks (Static Electricity Fun)

I’m Ken Kuwako, your Science Trainer! Every day is an experiment. Ever seen celebrities on TV react with surprise to that mysterious, tingling drink, commonly known as the “static electricity drink”? “What does it taste like?” “What does it mean for electricity to flow through your body?” This endlessly intriguing experiment actually traces its roots […]

2025年10月4日 / Last updated : 2025年10月4日 桑子 研 Science

Unveiling Invisible Forces: The Magic of Static Electricity & the Electroscope!

I’m Ken Kuwako, your Science Trainer! Every day is an experiment! That “Zap!” you feel when you touch a doorknob in winter, or the “Crackle, crackle…” when you take off a sweater – everyone’s experienced static electricity. It’s such a common phenomenon, isn’t it? But its true nature is invisible, almost like capricious magic. What […]

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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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[Shocking!] Can You “Keep a Bird” with Just One Straw!? A Real Water Whistle Experiment at Home

2026年2月16日

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2026年2月14日

Secrets of Static Electricity! Try This Cool Experiment with Styrofoam and Paper Bits (Dielectric Polarization)

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Make It Snow in a Test Tube! Sparkling Crystal Christmas at Home (Ammonium Chloride Recrystallization Experiment)

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2026年2月11日

The Secret of Fizzy Reactions! Learn Chemical Changes with Citric Acid × Baking Soda (Endothermic Reaction)

2026年2月10日

Learn How Engines Work with a Shocking “Pop!” — The Secret of Alcohol Explosion Experiments (First Law of Thermodynamics)

2026年2月9日

What Happens When Acid Meets Base? Create the Crystals of Neutralization — A Visible Chemistry Drama (HCl & NaOH Experiment)

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