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2026年4月10日 / Last updated : 2026年4月10日 桑子 研 Science

Unlock the Magic with a Transparent Tube? See the Law of Energy Conservation in Action! (Also Great for Measuring Gravity!)

I’m Ken Kuwako, your Science Trainer. Every day is an adventure in experimentation! Objects pick up speed as they fall. It feels like common sense, doesn’t it? But hidden within that simple motion are the grand rules of the universe. Are you ready to unlock the mysteries of “falling objects”? Today, I want to share […]

2026年4月9日 / Last updated : 2026年4月9日 桑子 研 Science

Hate Equations but Love Physics? Step into the 3D World of Electric Field Lines with GeoGebra (Point Charges & Electric Fields)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Our modern world is powered by electricity, yet we can’t actually see its true form: the Electric Field. Wouldn’t it be cool if we could visualize the energy flowing through space, just like a hero in a sci-fi movie? Today, I’m going to show […]

2026年4月8日 / Last updated : 2026年4月8日 桑子 研 Science

A Magic Trick to Keep Your Cake Spotless! The Surprising Science Behind “Frozen Candles” (Melting & Boiling Points of Paraffin)

I’m Ken Kuwako, your Science Trainer. To me, every day is an experiment. Is there anything more magical than the moment you blow out the candles on a special celebration cake? It’s pure happiness—until you notice a trail of melted wax dripping all over your beautiful frosting. “Oh no, there goes the decoration…” It’s a […]

2026年4月7日 / Last updated : 2026年4月7日 桑子 研 Science

Not a Broadleaf Tree?! The Truth Behind Ginkgo’s Fan-Shaped Leaves—A Living Fossil Revealed (Plant Guide)

I am Ken Kuwako, your Science Trainer. Every day is an experiment! Golden ginkgo trees are the crowning jewels of autumn streets. When we see those fan-shaped leaves fluttering down, most of us think, “What a beautiful broadleaf tree!” But if you crack open a textbook, you’ll find a surprising truth hidden beneath those yellow […]

2026年4月6日 / Last updated : 2026年4月6日 桑子 研 Science

A Split-Second Miracle! Capture the “Law of Inertia” Hidden Inside a Water Balloon!

Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Have you ever taken a really close look at the exact moment a water balloon pops? To our eyes, it’s a blink-and-you-miss-it event, but that tiny fraction of a second is packed with the beauty and mystery of physics. Today, I’ll show you […]

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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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