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January 2026

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2026年1月13日 / Last updated : 2026年1月13日 桑子 研 Science

Going Super Saiyan with Static Electricity! A Science Teacher’s Hair-Raising Experiment—20 Years in the Making (Van de Graaff Generator)

I’m Ken Kuwako, your Science Trainer. To me, every day is an experiment. Ever since I was a kid, I’ve been captivated by the mysteries of magnets and electricity. I vividly remember the thrill of seeing objects move through an invisible force without even being touched. Then, one day in middle school, I saw a […]

2026年1月12日 / Last updated : 2026年1月12日 桑子 研 Science

A Secret Line on the Water! Discover Wave Magic Circles by Tossing Two Stones (Observing Wave Interference Patterns)

I am Ken Kuwako, your Science Trainer. To me, every day is an experiment. Think about a shimmering river surface or a puddle after a rainstorm. Would you be surprised if I told you that distinct geometric patterns are hidden within those everyday sights? Our world is beautifully designed according to invisible “mathematical rules.” Today, […]

2026年1月11日 / Last updated : 2026年1月11日 桑子 研 Science

Why Is the Pitcher’s Mound 25 cm High? The Hidden Science Behind the Mound’s Elevation

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! 【This article is also available on my radio show!】 While watching an intense baseball game, have you ever stopped to wonder, “Why does the pitcher stand on such a high spot?” It turns out the pitcher’s mound is built about 25cm higher than home […]

2026年1月10日 / Last updated : 2026年1月10日 桑子 研 Science

Food Chain Simulation! What Happens When Bears Disappear—Why Does the Grass Vanish? The Mystery of Ecosystems (Scratch)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Imagine for a moment: what would happen if all the “big, scary bears” suddenly vanished from the forest? Would it turn into a peaceful, lush paradise for everyone else? Surprisingly, the answer is a resounding “no.” Nature is woven together by a complex web […]

2026年1月9日 / Last updated : 2026年1月9日 桑子 研 Science

The Kitchen Is a Laboratory! The Strange Drama of Water and Oil Caused by Hydrogen Bonds

I’m Ken Kuwako, your Science Trainer. For me, every day is an experiment! Your kitchen is actually a science lab full of surprises! Think about making salad dressing—no matter how hard you shake the bottle, the oil and water always end up parting ways. It’s a sight we take for granted, but did you know […]

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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.

Recent posts

Make Your Own Straw Wind Instrument with Kids! Snip, Snip—Why Does Cutting It Make the Sound Higher?

2026年2月15日

Why Does an Ambulance Sound Change? Uncover the Doppler Effect with Scratch!

2026年2月14日

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

2026年2月13日

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

2026年2月12日

Where Did the Electricity Go? Uncover the Emotional “V-Shaped Graph” of Neutralization! (Barium Hydroxide × Sulfuric Acid Experiment)

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)

2026年2月8日

What Happens If You Jump on a 300 km/h Bullet Train? The Half Super Ball Experiment Explains It!

2026年2月7日

A Squeeze of Lemon Is a Chemistry Experiment! Your Dining Table Turns into a Science Lab (Neutralization)

2026年2月6日

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